Merge pull request #128 from pkali/develop

Develop

.gitignore

@@ -2,3 +2,5 @@
 *.bak
 scorch.lab
 scorch.lst
+textproc.lab
+textproc.lst

MANUAL_EN.md

@@ -14,13 +14,13 @@ On the first screen, you can configure gameplay options:
 * frequency of suicides :) - if for a number of turns the game has not recorded hits (tanks are constantly shooting inaccurately), after one of such misses a tank commits suicide - here you determine how long they can "shooting for the stars" :) - if only people play the optimal setting is "norm", in the case of computer-controlled players ... you choose.
 * The height (and undulation) of the mountains from almost flat (NL - Kingdom of the Netherlands), to soaring and high (NP - Federal Democratic Republic of Nepal)
 * the way the walls (edges of the screen) work:
-	* none - projectiles that flew off the screen do not return
+    * none - projectiles that flew off the screen do not return
-	* wrap - the screen "wraps" and projectiles that flew to the right appear on the left side (and vice versa)
+    * wrap - the screen "wraps" and projectiles that flew to the right appear on the left side (and vice versa)
-	* bump - the right and left walls deflect projectiles that want to fly through them
+    * bump - the right and left walls deflect projectiles that want to fly through them
-	* boxy - just like bump, except that the "ceiling" also reflects projectiles
+    * boxy - just like bump, except that the "ceiling" also reflects projectiles
-	* rand - at the beginning of each round, one of the above 4 ways the walls work is drawn.
+    * rand - at the beginning of each round, one of the above 4 ways the walls work is drawn.
 
-	During gameplay, the current mode of the walls is represented by the color of the screen frame: none - black, wrap - purple, bump - blue, boxy - green.
+    During gameplay, the current mode of the walls is represented by the color of the screen frame: none - black, wrap - purple, bump - blue, boxy - green.
 
 Select options with cursor keys or a joystick.
 
@@ -29,9 +29,10 @@ The [RETURN] key or a joystick button moves to the next screen.
 ## 2. Entering the name of players and selecting the level of computer-controlled players
 
 The second screen is shown for each player. Here you can use the cursor keys or joystick to select whether the tank will be driven by a human (HUMAN option) or a computer (other options). At the same time, you can enter the name of the selected player from the keyboard.
-When you press the [RETURN] key or the joystick button, the screen switches to the next player until the difficulty levels for each player are selected.
+When the [RETURN] key is pressed or the Joystick button is pressed briefly, the screen switches to the next player until the difficulty levels for each player are selected.
+The player's name can also be entered with the joystick. After pressing and holding the button for more than 1s. you can use up/down movements to change the letter being entered, and left/right movements to change its position in the name. Releasing the button ends the name entry and returns to the level selection.
 
-If the name is not entered (because, for example, you use a joystick only), it will be supplemented with the default name.
+If the name is not entered, it will be supplemented with the default name.
 
 ## 3. Shopping screen (before each round)
 
@@ -195,3 +196,54 @@ And of course, activating a weapon when you already have some other weapon activ
 ## 7. "Other" weapons:
 
 * **Buy me!** - this is a 'loot box', not a weapon per se. Buying it draws one of the offensive or (rarely) defensive weapons and adds it to the player's arsenal. It is a lottery in which you can lose (if you draw a weapon cheaper than the **Buy Me!** price) but also gain. You can get a weapon otherwise not affordable at all! 
+
+## 8. difficulty levels of computer-controlled opponents:
+
+The game has 8 difficulty levels of computer-controlled opponents. Or actually 7 different ones and one "surprise". Each has its own way of buying defensive and offensive weapons and a different method of target selection and targeting itself, as well as weapon selection. They are arranged in the list according to increasing "skills":
+
+* **Moron** - the dumbest of opponents (which does not mean the safest). Shoots completely at random using only one weapon - **Baby Missile**. He doesn't buy anything and doesn't know how to use defensive weapons.
+
+* **Shooter** - This opponent does not shoot blindly. He chooses one direction for himself. Based on his own position - he shoots in the direction from which there is more space assuming that this is where the other tanks are. He starts firing from a high angle and shot after shot changes this angle to a lower and lower angle trying to fire the entire area on the chosen side. He always fires with the best weapon he has (the highest on the list of weapons he has - that is, not necessarily the best). He does not use defensive weapons even though he buys them! At the beginning of the round, he makes 1 attempt to buy defensive weapons (only from the **Battery** - **Strong Parachute** range) and 4 offensive weapons (from the **Missile** - **Heavy Roller** range).
+
+* **Poolshark** - When attacking, he sets the nearest tank as his target, then selects the angle of the shot, and tries to select its strength by drawing it from the selected range. He always shoots with the best weapon he has. He uses defensive weapons. With a probability of 1:3, he activates the best defensive weapon he owns (the highest on the list of weapons he owns - that is, not necessarily the best) before firing. If his energy level drops below 30 units - he uses **Battery** (of course, if he bought it before), if the energy drops below 5 and he has no **Battery** he surrenders - **White Flag**. At the beginning of the round he makes 1 attemp to buy defensive weapons and 6 offensive weapons.
+
+** **Tosser** - When attacking, he acts exactly like **Poolshark** however, he may have a "better" weapon inventory due to a different purchase tactic. He always activates the best defensive weapon he has before shooting. And just like **Poolshark** he uses **Battery** and **White Flag**. At the beginning of the round, he assesses how much money he has and depending on that, he makes (money/5100) attempts to buy defensive weapons and then checks again how much money he has left and makes (money/1250) attempts to buy offensive weapons.
+
+** **Chooser** - Takes as a target the weakest opponent (with the least amount of energy) and aims very precisely, but before the shot the energy of the shot is modified by the parameter of luck :) , that is, despite the precise aiming it does not always hit. He shoots with the best weapon he has unless low energy is required (the target is close). Then he changes his weapon to **Baby Missile** to avoid hitting himself. He always activates the best defensive weapon he has before shooting and, like **Poolshark**, uses **Battery** and **White Flag**. He purchases just like **Tosser**.
+
+* **Spoiler** - He shoots exactly like **Chooser** except that he has more luck :) , which means that even if he doesn't hit the target of his choice, it can be a more precise shot than **Chooser**. He uses defensive weapons exactly like **Chooser**. At the beginning of the round, he assesses how much money he has and depending on that, he makes (money/5100) attempts to buy defensive weapons and then checks again how much money he has left and makes (money/320) attempts to buy offensive weapons. When buying defensive weapons, he buys only strong and precise weapons - that is, weapons that won't accidentally hurt him.
+
+** **Cyborg** - Takes aim at the weakest opponent (with the least amount of energy) but prefers human-controlled opponents. Aims very accurately and in the vast majority of cases hits on the first shot. He fires the shot with the best weapon he has unless low energy is required (the target is close). Then he changes his weapon to **Baby Missile** to avoid hitting himself. He uses defensive weapons exactly like **Chooser**. He shops exactly like **Spoiler**.
+
+* **Unknown** - Before firing each shot, he randomly chooses a course of action from **Poolshark** to **Cyborg** and applies his tactics. However, the tactics of weapon purchases are always identical to **Tosser**.
+
+Trying to buy a weapon (offensive or defensive) is as follows:
+First, one of the weapons is drawn (among all possible offensive or defensive weapons). Then a check is performed to see if the drawn weapon is in the list of weapons possible for purchase by the tank. If not, no weapon is bought in this trial, and if so, its price is checked. If the tank has that much money, the weapon is bought, otherwise the trial ends without making a purchase.
+
+Table of weapons purchased by: **Shooter**, **Poolshark**, **Tosser** and **Chooser**.
+
+| Offensive weapons | Defensive weapons |
+| --- | --- |
+| Missile | Battery |
+| Baby Nuke | Parachute |
+| Nuke | Strong Parachute |
+| LeapFrog | Mag Deflector |
+| Funky Bomb | Shield |
+| MIRV | Heavy Shield |
+| Death's Head | Force Shield |
+| Napalm | Bouncy Castle |
+| Hot Napalm | |
+| Baby Roller | |
+| Roller | |
+| Heavy Roller | |
+
+Table of weapons purchased by: **Spoiler** and **Cyborg**.
+
+| Offensive weapons | Defensive weapons |
+| --- | --- |
+| Baby Nuke | Battery |
+| Nuke | Strong Parachute |
+| Death's Head | Mag Deflector |
+| Hot Napalm | Heavy Shield |
+| | Force Shield |
+| | Bouncy Castle |

MANUAL_PL.md

@@ -27,9 +27,10 @@ Klawisz [RETURN] lub przycisk Joysticka przechodzi do następnego ekranu.
 
 ## 2. Wprowadzanie nazwy graczy i wybór poziomu graczy sterowanych przez komputer
 Drugi ekran powtarza się dla każdego z graczy można na nim klawiszami kursora lub joysticjiem wybrać czy danym czołgiem będzie kierował człowiek (opcja HUMAN) czy też kompute (pozostałe opcje). Jednocześnie z klawiatury można wprowadzić nazwę wybranego gracza.
-Po naciśnięciu klawisza [RETURN] lub przycisku Joysticka ekran przechodzi na następnego gracza aż zostaną wybrane poziomy trudności dla każdego z nich.
+Po naciśnięciu klawisza [RETURN] lub krótkim naciśnięciu przycisku Joysticka ekran przechodzi na następnego gracza aż zostaną wybrane poziomy trudności dla każdego z nich.
+Nazwę gracza można wprowadzać także przy pomocy joysticka. Po wciśnięciu i przytrzymaniu przycisku ponad 1s. za pomocą ruchów góra/dół można zmienić wprowadzaną literę, a lewo/prawo jej pozycję w nazwie. Puszczenie przycisku kończy wprowadzanie nazwy i wraca do wyboru poziomu.
 
-Jeśli nazwa nie zostanie wpisana (bo np operujemy wyłącznie joystickiem), to zostanie uzupełniona nazwą domyślną.
+Jeśli nazwa nie zostanie wpisana, to zostanie uzupełniona nazwą domyślną.
 
 ## 3. Ekran zakupów (przed każdą rundą)
 
@@ -189,3 +190,55 @@ Oczywiście aktywacja broni w momencie kiedy mamy już aktywowaną jakąś inną
 ## 7. Bronie 'inne' :) :
 
 * **Buy me!** - tej 'broni' nie można używać w rozgrywce. Jej zakup powoduje wylosowanie jesdnej z broni ofensywnych lub (żadziej) defensywnych i dodanie jej do arsenału gracza. Jest to loteria w której można stracić (jeśli wylosuje się broń tańsza niż cena **Buy Me!** ale też zyskać. Jeśli wylosuje się broń dużo droższa możemy otrzymać do dyspozycji broń, na którą nie było nas stać!
+
+
+## 8. Poziomy trudności przeciwników sterowanych przez komputer:
+
+Gra posiada 8 poziomów trudności przeciwników sterowanych przez komputer. A właściwie 7 różnych i jeden "niespodziankę". Każdy z nich ma swój sposób kupowania broni defensywnych i ofensywnych oraz inną metodę wyboru celu i samego celowania, oraz wyboru broni. Ułożone są one na liście według wzrastających "umiejętności":
+
+* **Moron** - najgłupszy z przeciwników (co nie znaczy że najbezpieczniejszy). Strzela całkowicie przypadkowo używając wyłącznie jednej broni - **Baby Missile**. Nie kupuje nic, nie umie stosować broni defensywnych.
+
+* **Shooter** - Ten przeciwnik nie strzela na oślep. Wybiera sobie jeden kierunek. Na podstawie własnej pozycji - strzela w stronę z której jest więcej przestrzeni zakładając, że to tam są inne czołgi. Ostrzeliwanie zaczyna od wysokiego kąta i strzał po strzale zmienia ten kąt na coraz niższy starając się ostrzelać cały obszar po wybranej stronie. Strzał oddaje zawsze najlepszą posiadaną bronią (najwyższą na liście posiadanych broni - czyli nie koniecznie najlepszą). Nie używa broni defensywnych mimo, że je kupuje! Na początku rundy podejmuje 1 próbę zakupu broni defensywnych (tylko z zakresu **Battery** - **Strong Parachute**) i 4 ofensywnych (z zakresu **Missile** - **Heavy Roller**).
+
+* **Poolshark** - Atakując wyznacza sobie za cel najbliższy czołg, następnie dobiera kąt strzału, a jego siłę stara się dobrać losując ją z wybranego przedziału. Strzał oddaje zawsze najlepszą posiadaną bronią. Używa broni defensywnych. Z prawdopodobieństwem 1:3 aktywuje przed oddaniem strzału najlepszą posiadaną broń defensywną (najwyższą na liście posiadanych broni - czyli nie koniecznie najlepszą). Jeżeli poziom jego energii spadnie poniżej 30 jednostek - używa **Battery** (oczywiście jeśli wcześniej ją kupił), jeżeli energia spadniej poniżej 5 i nie ma **Battery** poddaje się - **White Flag**. Na początku rundy podejmuje 1 próbę zakupu broni defensywnych i 6 ofensywnych.
+
+* **Tosser** - Atakując działa dokładnie tak jak **Poolshark** jednak może posiadać "lepszy" zasób broni dzięki innej taktyce zakupów. Zawsze przed strzałem aktywuje najlepszą posiadaną broń defensywną. i tak jak **Poolshark** stosuje **Battery** i **White Flag**. Na początku rundy ocenia ile ma pieniędzy i w zależności od tego podejmuje (pieniądze/5100) prób zakupu broni defensywnych a następnie jeszcze raz sprawdza ile pieniędzy mu zostało i podejmuje (pieniądze/1250) prób zakupu broni ofensywnych.
+
+* **Chooser** - Obiera sobie za cel najsłabszego przeciwnika (o najmniejszym zasobie energii) i celuje bardzo dokładnie, jednak przed samym strzałem energia strzału modyfikowana jest o parametr szczęścia :) , czyli mimo precyzyjnego wycelowania nie zawsze trafia. Strzał oddaje najlepszą posiadaną bronią chyba że wymagana jest małą energia (cel jest blisko). Wtedy zmienia broń na **Baby Missile** by unikać trafienia samego siebie. Zawsze przed strzałem aktywuje najlepszą posiadaną broń defensywną i tak jak **Poolshark** stosuje **Battery** i **White Flag**. Zakupów dokonuje tak samo jak **Tosser**.
+
+* **Spoiler** - Strzela dokładnie tak jak **Chooser** tyle, że ma więcej szczęścia :) , co oznacza że nawet jeśli nie trafi w wybrany cel, to może być to strzał precyzyjniejszy niż **Chooser**. Broni defensywnych używa dokładnie tak jak **Chooser**. Na początku rundy ocenia ile ma pieniędzy i w zależności od tego podejmuje (pieniądze/5100) prób zakupu broni defensywnych a następnie jeszcze raz sprawdza ile pieniędzy mu zostało i podejmuje (pieniądze/320) prób zakupu broni ofensywnych. Przy zakupie broni defensywnych kupuje tylko bronie silne i precyzyjne - czyli takie, które nie zrobią mu przypadkiem krzywdy.
+
+* **Cyborg** - Obiera sobie za cel najsłabszego przeciwnika (o najmniejszym zasobie energii) lecz preferuje przeciwników sterowanych przez człowieka. Celuje bardzo dokładnie i w zdecydowanej większości przypadków trafia za pierwszym strzałem. Strzał oddaje najlepszą posiadaną bronią chyba że wymagana jest małą energia (cel jest blisko). Wtedy zmienia broń na **Baby Missile** by unikać trafienia samego siebie. Broni defensywnych używa dokładnie tak jak **Chooser**. Zakupy robi dokładnie tak jak **Spoiler**
+
+* **Unknown** - Przed oddaniem każdego strzału losowo wybiera sposób działania od **Poolsharka** do **Cyborga** i stosuje jego taktykę. Taktyka zakupów broni jest jednak zawsze identyczna jak  **Tosser**
+
+Próba zakupu broni (ofensywnej lub defensywnej) wygląda następująco:
+Na początku losowana jest jedna z broni (wśród wszystkich możliwych ofensywnych lub defensywnych). Następnie wykonywane jest sprawdzenie czy wylosowana broń jest na liście broni możliwych do zakupu przez czołg. Jeśli nie to w tej próbie żadna broń nie jest kupowana, a jeśli tak, to sprawdzana jest jej cena. Jeśli czołg ma tyle pieniędzy, broń jest kupowana, w przeciwnym wypadku próba kończy się bez dokonania zakupu.
+
+Tabela broni kupowanych przez: **Shooter**, **Poolshark**, **Tosser** i **Chooser**
+
+| bronie ofensywne | bronie defensywne |
+| --- | --- |
+| Missile | Battery |
+| Baby Nuke | Parachute |
+| Nuke | Strong Parachute |
+| LeapFrog | Mag Deflector |
+| Funky Bomb | Shield |
+| MIRV | Heavy Shield |
+| Death's Head | Force Shield |
+| Napalm | Bouncy Castle |
+| Hot Napalm | |
+| Baby Roller | |
+| Roller | |
+| Heavy Roller | |
+
+Tabela broni kupowanych przez: **Spoiler** i **Cyborg**
+
+| bronie ofensywne | bronie defensywne |
+| --- | --- |
+| Baby Nuke | Battery |
+| Nuke | Strong Parachute |
+| Death's Head | Mag Deflector |
+| Hot Napalm | Heavy Shield |
+| | Force Shield |
+| | Bouncy Castle |

README.md

@@ -48,19 +48,36 @@ With the advent of [fujinet](https://fujinet.online/) we are thinking about maki
 
 ## Changes:
 
+###### Version 1.13
+2022-08-30
+
+Getting ready for porting the game!
+
+Several heavy optimizations and code cleanups in preparation for an unexpected port.
+
+Changes:
+* Overhaul of AI - Cyborgs, Spoilers, and Choosers aim much better.
+* Cyborgs prefer to kill humans.
+* Fine tuning of AI purchases makes the difficulty level aligned with the robot level.
+* Fixed a very difficult and elusive bug that was causing tanks to freeze when falling close to the right edge of the screen fixed.
+* Updated music by @Miker
+* It is now possible to enter tank names with a joystick - all essential game functions are available without touching the keyboard!
+* Manuals updated with AI strategy information and more.
+
+
 ###### Version 1.12
 2022-08-24
 
 What is going on? Are we getting crazy or what?
 
 Changes:
-* Background color indicates type of walls. This is very useful when `rand` option is selected.
+* Background color indicates the type of walls. This is very useful when the rand option is selected.
-* XEGS users requested that console keys are used when no keyboard attached! We delivered! [SELECT] to select an offensive weapon, [OPTION] to jump into inventory, defensive section, [START] + [OPTION] - immediate Game Over (no confirmation for you keyboardless folks)
+* XEGS users requested that console keys are used when no keyboard is attached! We delivered! [SELECT] to select an offensive weapon, [OPTION] to jump into inventory, defensive section, [START] + [OPTION] - immediate Game Over (no confirmation for you keyboardless folks)
 * A very silly bug detected by our young testers fixed - the game crashed when you built a very high mountain using Dirt Balls :)
 * Boxy infinite bounce bug fixed.
-* Funky bombs bouce off the walls!
+* Funky bombs bounce off the walls!
-* First letter entered for a tank name was inserted in a wrong spot. How did it work at all? Magic.
+* The first letter entered for a tank name was inserted in the wrong spot. How did it work at all? Magic.
-* [ESC] now correctly exits purchase screen.
+[ESC] now correctly exits the purchase screen.
 
 
 ###### Version 1.11

ai.asm

@@ -155,7 +155,7 @@ endo
 	
 	; choose the best weapon
 	
-	ldy #32 ;the last  weapon	
+	ldy #last_offensive_____ ;the last  weapon	
 loop
 	dey
 	lda (temp),y  ; this is set up before calling the routine, has address of TanksWeaponsTable
@@ -262,10 +262,10 @@ EnoughEnergy
 	; first check check if any is in use
 	lda ActiveDefenceWeapon,x
 	bne DefensiveInUse
-	ldy #ind_Nuclear_Winter_+1 ;the last defensive weapon
+	ldy #last_defensive_____+1 ;the last defensive weapon
 @
 	dey
-	cpy #ind_Battery________ ;first defensive weapon	(White Flag nad Battery - never use)
+	cpy #ind_Battery________ ;first defensive weapon	(White Flag and Battery - never use)
 	beq NoUseDefensive
 	lda (temp),y  ; has address of TanksWeaponsTable
 	beq @- 
@@ -297,10 +297,10 @@ DefensiveInUse
 	; first check check if any is in use
 	lda ActiveDefenceWeapon,x
 	bne DefensiveInUse
-	ldy #ind_Nuclear_Winter_+1 ;the last defensive weapon	
+	ldy #last_defensive_____+1 ;the last defensive weapon	
 @
 	dey
-	cpy #ind_Battery________ ;first defensive weapon	(White Flag nad Battery - never use)
+	cpy #ind_Battery________ ;first defensive weapon	(White Flag and Battery - never use)
 	beq NoUseDefensive
 	lda (temp),y  ; has address of TanksWeaponsTable
 	beq @- 
@@ -324,6 +324,7 @@ NoUseDefensive
 	; use defensives like Tosser
 	jsr TosserDefensives
 	; now select best target
+	lda #$00 ; no prefer humans
 	jsr FindBestTarget3
 	sty TargetTankNr
 	; aiming
@@ -364,6 +365,7 @@ HighForce
 	; use defensives like Tosser
 	jsr TosserDefensives
 	; now select best target
+	lda #$00 ; no prefer humans
 	jsr FindBestTarget3
 	sty TargetTankNr
 	; aiming
@@ -403,6 +405,7 @@ HighForce
 	; use defensives like Tosser
 	jsr TosserDefensives
 	; now select best target
+	lda #100	; prefer humans
 	jsr FindBestTarget3
 	sty TargetTankNr
 	; aiming
@@ -437,11 +440,13 @@ HighForce
 .proc FindBestTarget3
 ; find target with lowest energy
 ; X - shooting tank number
+; A - 100 - prefer humans , 0 - equality :)
 ; returns target tank number in Y and
 ; direcion of shoot in A (0 - left, >0 - right)
 ;----------------------------------------------
+	sta PreferHumansFlag
 	jsr MakeLowResDistances
-	lda #101
+	lda #202
 	sta temp2 ; max possible energy
 	lda #0
 	sta tempor2	; direction of shoot
@@ -455,25 +460,24 @@ loop01
 	lda eXistenZ,y
 	beq skipThisPlayer
 
+	lda skilltable,y
+	beq ItIsHuman
+	lda PreferHumansFlag
+ItIsHuman
+	clc
+	adc Energy,y	; if robotank energy=energy+100 (100 or 0 from PreferHumansFlag)
+	cmp temp2 ; lowest
+	bcs lowestIsLower
+	sta temp2
+	sty temp2+1 ; number of the closest tank
+	mva #0 tempor2
 	lda LowResDistances,x
 	cmp LowResDistances,y
 	bcs EnemyOnTheLeft
-	;enemy on the right
+	; enemy on right
-	lda Energy,y
-	cmp temp2 ; lowest
-	bcs lowestIsLower
-	sta temp2
-	sty temp2+1 ; number of the closest tank
 	inc tempor2	; set direction to right
-	bne lowestIsLower
 	
 EnemyOnTheLeft	
-	lda Energy,y
-	cmp temp2 ; lowest
-	bcs lowestIsLower
-	sta temp2
-	sty temp2+1 ; number of the closest tank
-	
 lowestIsLower
 skipThisPlayer
 	dey
@@ -607,14 +611,8 @@ skipThisPlayer
 ; returns angle and power of shoot tank X (TankNr)
 ; in the appropriate variables (Angle and Force)
 ;----------------------------------------------
+	mva #$ff SecondTryFlag
 	; set initial Angle and Force values
-	; wind correction 90+(wind/8)
-	mwa Wind temp2
-	:7 lsrw temp2
-	clc
-	lda #90
-	adc temp2
-	sta NewAngle
 	lda OptionsTable+2	; selected gravity
 	asl 
 	tay
@@ -633,10 +631,19 @@ skipThisPlayer
 	adc #0
 	sta RandBoundaryHigh+1
     jsr RandomizeForce
+RepeatAim
 	lda ForceTableL,x
 	sta Force
 	lda ForceTableH,x
 	sta Force+1
+	; wind correction 90+(wind/8)
+	mwa Wind temp2
+	:7 lsrw temp2
+	clc
+	lda #90
+	adc temp2
+	sta NewAngle
+	; set virtual weapon :)
 	lda #ind_Baby_Missile___
 	sta ActiveWeapon,x
 	; now we have initial valuses
@@ -673,7 +680,8 @@ GroundHitInFirstLoopR
 	lda NewAngle
 	adc #5	; 5 deg to right
 	cmp #(180-20)
-	bcs EndOfFirstLoopR	; if angle 180-20 or higher
+;	bcs EndOfFirstLoopR	; if angle 180-20 or higher
+	bcs AimSecondTry
 	sta NewAngle
 	jmp AimingRight
 NoHitInFirstLoopR
@@ -721,8 +729,20 @@ NoHitInSecondLoopR
 	; Angle 1 deg to right and end loop 
 	inc NewAngle
 EndOfSecondLoopR
+EndOfAim
 	rts
 
+AimSecondTry
+	bit SecondTryFlag
+	bpl EndOfAim	; closest RTS
+	inc SecondTryFlag
+	lda #<1000
+	sta ForceTableL,x
+	lda #>1000
+	sta ForceTableH,x
+	jsr RandomizeForce.LimitForce
+	jmp RepeatAim
+	
 AimingLeft
 	; make test Shoot (Flight)
 	jsr SetStartAndFlight
@@ -752,7 +772,8 @@ GroundHitInFirstLoopL
 	lda NewAngle
 	sbc #5	; 5 deg to left
 	cmp #21
-	bcc EndOfFirstLoopL	; if angle 180-20 or higher
+;	bcc EndOfFirstLoopL	; if angle 20 or lower
+	bcc AimSecondTry
 	sta NewAngle
 	jmp AimingLeft
 NoHitInFirstLoopL
@@ -934,13 +955,13 @@ SorryNoPurchase
 ;----------------------------------------------
 .proc ShooterPurchase
 	; first try to buy defensives
-	mva #2 tempXroller; number of offensive purchases to perform
+;	mva #2 tempXroller; number of offensive purchases to perform
 	ldx TankNr
 @
 	randomize ind_Battery________ ind_StrongParachute
 	jsr TryToPurchaseOnePiece
-	dec tempXroller
+;	dec tempXroller
-	bne @-
+;	bne @-
 	
 	; and now offensives
 	mva #4 tempXroller; number of offensive purchases to perform
@@ -956,16 +977,16 @@ SorryNoPurchase
 ;----------------------------------------------
 .proc PoolsharkPurchase
 	; first try to buy defensives
-	mva #3 tempXroller; number of offensive purchases to perform
+;	mva #2 tempXroller; number of offensive purchases to perform
 	ldx TankNr
 @
 	randomize ind_Battery________ ind_Bouncy_Castle__
 	jsr TryToPurchaseOnePiece
 	dec tempXroller
-	bne @-
+;	bpl @-
 	
 	; and now offensives
-	mva #8 tempXroller; number of purchases to perform
+	mva #6 tempXroller; number of purchases to perform
 	;ldx TankNr
 @
 	randomize ind_Missile________ ind_Dirt_Charge____
@@ -980,15 +1001,16 @@ SorryNoPurchase
 
     ; what is my money level
     ldx TankNr
-;    lda MoneyH,x ; money / 256
+    lda MoneyH,x ; money / 256
-;    sta tempXroller ; perform this many purchase attempts
+	lsr		; /2
+    sta tempXroller ; perform this many purchase attempts
     ; first try to buy defensives
-    mva #1 tempXroller; number of defensive purchases to perform
+;    mva #1 tempXroller; number of defensive purchases to perform
 @
     randomize ind_Battery________ ind_Bouncy_Castle__
     jsr TryToPurchaseOnePiece
     dec tempXroller
-    bne @-
+    bpl @-
     
     ; and now offensives
     lda MoneyH,x ; money / 256
@@ -998,7 +1020,7 @@ SorryNoPurchase
     randomize ind_Missile________ ind_Dirt_Charge____
     jsr TryToPurchaseOnePiece
     dec tempXroller
-    bne @-
+    bpl @-
 
     rts 
 .endp
@@ -1007,25 +1029,26 @@ SorryNoPurchase
 
     ; what is my money level
     ldx TankNr
-    ;lda MoneyH,x ; money / 256
+    lda MoneyH,x ; money / 256
-    ;sta tempXroller ; perform this many purchase attempts
+	lsr		; /2
+    sta tempXroller ; perform this many purchase attempts
     ; first try to buy defensives
-    mva #1 tempXroller; number of defensive purchases to perform
+;    mva #1 tempXroller; number of defensive purchases to perform
 @
     randomize ind_Battery________ ind_Bouncy_Castle__
     jsr TryToPurchaseOnePiece2
     dec tempXroller
-    bne @-
+    bpl @-
     
     ; and now offensives
     lda MoneyH,x ; money / 256
-    :4 asl  ;*16
+    :3 asl  ;*8
     sta tempXroller ; perform this many purchase attempts
 @
-    randomize ind_Missile________ ind_Plasma_Blast___
+    randomize first_offensive____ last_offensive_____
     jsr TryToPurchaseOnePiece2
     dec tempXroller
-    bne @-
+    bpl @-
 
     rts 
 .endp

artwork/sfx/feat.txt

@@ -1,6 +1,6 @@
 STEREOMODE	equ 0
 ;* --------BEGIN--------
-;* C:\Atari\rmt\rmt128\scorch_str4.rmt
+;* C:\Atari\rmt\rmt128\scorch_str6.rmt
 FEAT_SFX		equ 1
 FEAT_GLOBALVOLUMEFADE	equ 0		;RMTGLOBALVOLUMEFADE variable
 FEAT_NOSTARTINGSONGLINE	equ 0

constants.asm

@@ -261,36 +261,16 @@ WeaponPriceH ; weapons prices (tables with prices of weapons)
   .by >price_Liquid_Dirt____
   .by >price_Dirt_Charge____
   .by >price_Buy_me_________  
-  .by >price_Plasma_Blast___
   .by >price_Laser__________
-  .by >price______________33
-  .by >price______________34
-  .by >price______________35
-  .by >price______________36
-  .by >price______________37
-  .by >price______________38
-  .by >price______________39
-  .by >price______________40
-  .by >price______________41
-  .by >price______________42
-  .by >price______________43
-  .by >price______________44
-  .by >price______________45
-  .by >price______________46
-  .by >price______________47
   .by >price_White_Flag_____
   .by >price_Battery________
-  .by >price_Bal_Guidance___
+  .by >price_Hovercraft_____
-  .by >price_Horz_Guidance__
-  .by >price_Floating_Tank__
-  .by >price_Lazy_Boy_______
   .by >price_Parachute______
   .by >price_StrongParachute
   .by >price_Mag_Deflector__
   .by >price_Shield_________
   .by >price_Heavy_Shield___
   .by >price_Force_Shield___
-  .by >price_Super_Mag______
   .by >price_Bouncy_Castle__
   .by >price_Long_Barrel____
   .by >price_Nuclear_Winter_
@@ -327,36 +307,16 @@ WeaponPriceL
   .by <price_Liquid_Dirt____
   .by <price_Dirt_Charge____
   .by <price_Buy_me_________
-  .by <price_Plasma_Blast___
   .by <price_Laser__________
-  .by <price______________33
-  .by <price______________34
-  .by <price______________35
-  .by <price______________36
-  .by <price______________37
-  .by <price______________38
-  .by <price______________39
-  .by <price______________40
-  .by <price______________41
-  .by <price______________42
-  .by <price______________43
-  .by <price______________44
-  .by <price______________45
-  .by <price______________46
-  .by <price______________47
   .by <price_White_Flag_____
   .by <price_Battery________
-  .by <price_Bal_Guidance___
+  .by <price_Hovercraft_____
-  .by <price_Horz_Guidance__
-  .by <price_Floating_Tank__
-  .by <price_Lazy_Boy_______
   .by <price_Parachute______
   .by <price_StrongParachute
   .by <price_Mag_Deflector__
   .by <price_Shield_________
   .by <price_Heavy_Shield___
   .by <price_Force_Shield___
-  .by <price_Super_Mag______
   .by <price_Bouncy_Castle__
   .by <price_Long_Barrel____
   .by <price_Nuclear_Winter_
@@ -368,70 +328,50 @@ WeaponPriceL
 ; is not present in the game.
 ; This is the slot for adding new weapons.
 WeaponUnits
-  .by 10 ;Baby_Missile___
+  .by 10 ;Baby_Missile___;_00
-  .by 5  ;Missile________
+  .by 5  ;Missile________;_01
-  .by 2  ;Baby_Nuke______
+  .by 2  ;Baby_Nuke______;_02
-  .by 1  ;Nuke___________
+  .by 1  ;Nuke___________;_03
-  .by 2  ;LeapFrog_______
+  .by 2  ;LeapFrog_______;_04
-  .by 3  ;Funky_Bomb_____
+  .by 3  ;Funky_Bomb_____;_05
-  .by 2  ;MIRV___________
+  .by 2  ;MIRV___________;_06
-  .by 1  ;Death_s_Head___
+  .by 1  ;Death_s_Head___;_07
-  .by 4  ;Napalm_________
+  .by 4  ;Napalm_________;_08
-  .by 2  ;Hot_Napalm_____
+  .by 2  ;Hot_Napalm_____;_09
-  .by 20 ;Tracer_________
+  .by 20 ;Tracer_________;_10
-  .by 10 ;Smoke_Tracer___
+  .by 10 ;Smoke_Tracer___;_11
-  .by 5  ;Baby_Roller____
+  .by 5  ;Baby_Roller____;_12
-  .by 3  ;Roller_________
+  .by 3  ;Roller_________;_13
-  .by 2  ;Heavy_Roller___
+  .by 2  ;Heavy_Roller___;_14
-  .by 5  ;Riot_Charge____
+  .by 5  ;Riot_Charge____;_15
-  .by 2  ;Riot_Blast_____
+  .by 2  ;Riot_Blast_____;_16
-  .by 5  ;Riot_Bomb______
+  .by 5  ;Riot_Bomb______;_17
-  .by 2  ;Heavy_Riot_Bomb
+  .by 2  ;Heavy_Riot_Bomb;_18
-  .by 10 ;Baby_Digger____
+  .by 10 ;Baby_Digger____;_19
-  .by 5  ;Digger_________
+  .by 5  ;Digger_________;_20
-  .by 2  ;Heavy_Digger___
+  .by 2  ;Heavy_Digger___;_21
-  .by 10 ;Baby_Sandhog___
+  .by 10 ;Baby_Sandhog___;_22
-  .by 5  ;Sandhog________
+  .by 5  ;Sandhog________;_23
-  .by 2  ;Heavy_Sandhog__
+  .by 2  ;Heavy_Sandhog__;_24
-  .by 5 ;Dirt_Clod______
+  .by 5  ;Dirt_Clod______;_25
-  .by 3  ;Dirt_Ball______
+  .by 3  ;Dirt_Ball______;_26
-  .by 1  ;Ton_of_Dirt____
+  .by 1  ;Ton_of_Dirt____;_27
-  .by 4  ;Liquid_Dirt____
+  .by 4  ;Liquid_Dirt____;_28
-  .by 2  ;Dirt_Charge____
+  .by 2  ;Dirt_Charge____;_29
-  .by 1  ;Buy_me_________
+  .by 1  ;Buy_me_________;_30
-  .by 0  ;Plasma_Blast___
+  .by 5  ;Laser__________;_31
-  .by 5  ;Laser__________
+  .by 1  ;White_Flag_____;_32
-  .by 0  ;_____________33
+  .by 3  ;Battery________;_33
-  .by 0  ;_____________34
+  .by 2  ;Floating_Tank__;_34
-  .by 0  ;_____________35
+  .by 3  ;Parachute______;_35
-  .by 0  ;_____________36
+  .by 2  ;StrongParachute;_36
-  .by 0  ;_____________37
+  .by 2  ;Mag_Deflector__;_37
-  .by 0  ;_____________38
+  .by 3  ;Shield_________;_38
-  .by 0  ;_____________39
+  .by 2  ;Heavy_Shield___;_39
-  .by 0  ;_____________40
+  .by 3  ;Force_Shield___;_40
-  .by 0  ;_____________41
+  .by 1  ;Auto_Defense___;_41
-  .by 0  ;_____________42
+  .by 2  ;Long_Barrel____;_42
-  .by 0  ;_____________43
+  .by 1  ;Nuclear_Winter_;_43
-  .by 0  ;_____________44
-  .by 0  ;_____________45
-  .by 0  ;_____________46
-  .by 0  ;_____________47
-  .by 1  ;White_Flag___48
-  .by 3  ;Battery________
-  .by 0  ;Bal_Guidance___
-  .by 0  ;Horz_Guidance__
-  .by 2  ;Floating_Tank__
-  .by 0  ;Lazy_Boy_______
-  .by 3  ;Parachute______
-  .by 2  ;StrongParachute
-  .by 2  ;Mag_Deflector__
-  .by 3  ;Shield_________
-  .by 2  ;Heavy_Shield___
-  .by 3  ;Force_Shield___
-  .by 0  ;Super_Mag______
-  .by 1  ;Auto_Defense___
-  .by 2  ;Long_Barrel____
-  .by 1  ;Nuclear_Winter_
 
 PurchaseMeTable ;weapons good to be purchased by the robot 
                 ;the comment is an index in the tables
@@ -445,53 +385,81 @@ PurchaseMeTable ;weapons good to be purchased by the robot
 	; "Digger          ","Heavy Digger    ","Baby Sandhog    ","Sandhog         "
 	.by %00000000
 	; "Heavy Sandhog   ","Dirt Clod       ","Dirt Ball       ","Ton of Dirt     "
-	; "Liquid Dirt     ","Dirt Charge     ","Buy me!         ","Plasma Blast    "
+	; "Liquid Dirt     ","Dirt Charge     ","Buy me!         ","Laser           "
 	.by %00000000
-	; "Laser           "
+	; "White Flag      ","Battery         ","Hovercraft      ","Parachute       "
-	.by %00000000
+    ; "Strong Parachute","Mag Deflector   ","Shield          ","Heavy Shield    "
-	.by 0 ; offset to defensives
+    .by %01011111
-	; "White Flag      ","Battery         ","Bal Guidance    ","Horz Guidance   "
+	; "Force Shield    ","Bouncy Castle   ","Long Barrel     ","Nuclear Winter  "
-	; "Hovercraft      ","Lazy Boy        ","Parachute       ","Strong Parachute"
+	.by %11000000
-	.by %01000011
-	; "Mag Deflector   ","Shield          ","Heavy Shield    ","Force Shield    "
-	; "Super Mag       ","Bouncy Castle   ","Long Barrel     ","Nuclear Winter  "
-	.by %11110100
 
 PurchaseMeTable2 ;weapons good to be purchased by the robot (Cyborg)
                 ;the comment is an index in the tables
-	; "Baby Missile    ","Missile         ","Baby Nuke       ","Nuke            "
+    ; "Baby Missile    ","Missile         ","Baby Nuke       ","Nuke            "
-	; "LeapFrog        ","Funky Bomb      ","MIRV            ","Death's Head    "
+    ; "LeapFrog        ","Funky Bomb      ","MIRV            ","Death's Head    "
-	.by %00110001
+    .by %00110001
-	; "Napalm          ","Hot Napalm      ","Tracer          ","Smoke Tracer    "
+    ; "Napalm          ","Hot Napalm      ","Tracer          ","Smoke Tracer    "
-	; "Baby Roller     ","Roller          ","Heavy Roller    ","Riot Charge     "
+    ; "Baby Roller     ","Roller          ","Heavy Roller    ","Riot Charge     "
-	.by %01000000
+    .by %01000000
-	; "Riot Blast      ","Riot Bomb       ","Heavy Riot Bomb ","Baby Digger     "
+    ; "Riot Blast      ","Riot Bomb       ","Heavy Riot Bomb ","Baby Digger     "
-	; "Digger          ","Heavy Digger    ","Baby Sandhog    ","Sandhog         "
+    ; "Digger          ","Heavy Digger    ","Baby Sandhog    ","Sandhog         "
-	.by %00000000
+    .by %00000000
-	; "Heavy Sandhog   ","Dirt Clod       ","Dirt Ball       ","Ton of Dirt     "
+    ; "Heavy Sandhog   ","Dirt Clod       ","Dirt Ball       ","Ton of Dirt     "
-	; "Liquid Dirt     ","Dirt Charge     ","Buy me!         ","Plasma Blast    "
+    ; "Liquid Dirt     ","Dirt Charge     ","Buy me!         ","Laser           "
-	.by %00000000
+    .by %00000000
-	; "Laser           "
+    ; "White Flag      ","Battery         ","Hovercraft      ","Parachute       "
-	.by %00000000
+    ; "Strong Parachute","Mag Deflector   ","Shield          ","Heavy Shield    "
-	.by 0 ; offset to defensives
+    .by %01001101
-	; "White Flag      ","Battery         ","Bal Guidance    ","Horz Guidance   "
+    ; "Force Shield    ","Bouncy Castle   ","Long Barrel     ","Nuclear Winter  "
-	; "Hovercraft      ","Lazy Boy        ","Parachute       ","Strong Parachute"
+    .by %11000000
-	.by %01000001
-	; "Mag Deflector   ","Shield          ","Heavy Shield    ","Force Shield    "
-	; "Super Mag       ","Bouncy Castle   ","Long Barrel     ","Nuclear Winter  "
-	.by %10110100
 
 ;-------------------------------------------------
 ; Screen codes of icons (chars) representing a given weapon
 WeaponSymbols
-    .by $40,$41,$42,$43,$44,$45,$46,$47
+    .by $40 ;ind_Baby_Missile___ ;_00
-    .by $48,$49,$4a,$4b,$4c,$4d,$4e,$4f
+    .by $41 ;ind_Missile________ ;_01
-    .by $50,$51,$52,$53,$54,$55,$56,$57
+    .by $42 ;ind_Baby_Nuke______ ;_02
-    .by $58,$59,$5a,$5b,$60,$7b,$1f,$7d
+    .by $43 ;ind_Nuke___________ ;_03
-    .by $20,$00,$00,$00,$00,$00,$00,$00
+    .by $44 ;ind_LeapFrog_______ ;_04
-    .by $00,$00,$00,$00,$00,$00,$00,$00
+    .by $45 ;ind_Funky_Bomb_____ ;_05
-    .by $5f,$1c,$03,$06,$06,$0a,$1b,$1b  ; defensives
+    .by $46 ;ind_MIRV___________ ;_06
-    .by $1e,$3b,$3d,$3c,$3e,$3f,$1d,$7d
+    .by $47 ;ind_Death_s_Head___ ;_07
+    .by $48 ;ind_Napalm_________ ;_08
+    .by $49 ;ind_Hot_Napalm_____ ;_09
+    .by $4a ;ind_Tracer_________ ;_10
+    .by $4b ;ind_Smoke_Tracer___ ;_11
+    .by $4c ;ind_Baby_Roller____ ;_12
+    .by $4d ;ind_Roller_________ ;_13
+    .by $4e ;ind_Heavy_Roller___ ;_14
+    .by $4f ;ind_Riot_Charge____ ;_15
+    .by $50 ;ind_Riot_Blast_____ ;_16
+    .by $51 ;ind_Riot_Bomb______ ;_17
+    .by $52 ;ind_Heavy_Riot_Bomb ;_18
+    .by $53 ;ind_Baby_Digger____ ;_19
+    .by $54 ;ind_Digger_________ ;_20
+    .by $55 ;ind_Heavy_Digger___ ;_21
+    .by $56 ;ind_Baby_Sandhog___ ;_22
+    .by $57 ;ind_Sandhog________ ;_23
+    .by $58 ;ind_Heavy_Sandhog__ ;_24
+    .by $59 ;ind_Dirt_Clod______ ;_25
+    .by $5a ;ind_Dirt_Ball______ ;_26
+    .by $5b ;ind_Ton_of_Dirt____ ;_27
+    .by $60 ;ind_Liquid_Dirt____ ;_28
+    .by $7b ;ind_Dirt_Charge____ ;_29
+    .by $1f ;ind_Buy_me_________ ;_30
+    .by $20 ;ind_Laser__________ ;_31
+    .by $5f ;ind_White_Flag_____ ;_32
+    .by $1c ;ind_Battery________ ;_33
+    .by $06 ;ind_Floating_Tank__ ;_34
+    .by $1b ;ind_Parachute______ ;_35
+    .by $1b ;ind_StrongParachute ;_36
+    .by $1e ;ind_Mag_Deflector__ ;_37
+    .by $3b ;ind_Shield_________ ;_38
+    .by $3d ;ind_Heavy_Shield___ ;_39
+    .by $3c ;ind_Force_Shield___ ;_40
+    .by $3f ;ind_Bouncy_Castle__ ;_41
+    .by $1d ;ind_Long_Barrel____ ;_42
+    .by $7d ;ind_Nuclear_Winter_ ;_43
 
 ; Names of weapons (16 chars long)
 NamesOfWeapons ;the comment is an index in the tables
@@ -526,58 +494,34 @@ NamesOfWeapons ;the comment is an index in the tables
     dta d"Liquid Dirt     " ; 28
     dta d"Dirt Charge     " ; 29
     dta d"Buy me!         " ; 30
-    dta d"Plasma Blast    " ; 31
+    dta d"Laser           " ; 31
-    dta d"Laser           " ; 32
+;------defensives
-    dta d"----------------" ; 33
+    dta d"White Flag      " ; 32                                        
-    dta d"----------------" ; 34
+    dta d"Battery         " ; 33                                              
-    dta d"----------------" ; 35
+    dta d"Hovercraft      " ; 34                                              
-    dta d"----------------" ; 36
+    dta d"Parachute       " ; 35    - no energy         
-    dta d"----------------" ; 37
+    dta d"Strong Parachute" ; 36    - with energy  (earlier Battery)        
-    dta d"----------------" ; 38
+    dta d"Mag Deflector   " ; 37    - with shield and energy           
-    dta d"----------------" ; 39
+    dta d"Shield          " ; 38    - shield for one shot - no energy       
-    dta d"----------------" ; 40
+    dta d"Heavy Shield    " ; 39    - shield with energy          
-    dta d"----------------" ; 41
+    dta d"Force Shield    " ; 40    - shield with energy and parachute
-    dta d"----------------" ; 42
+    dta d"Bouncy Castle   " ; 41    - with shield and energy 
-    dta d"----------------" ; 43
+    dta d"Long Schlong    " ; 42                                              
-    dta d"----------------" ; 44
+    dta d"Nuclear Winter  " ; 43
-    dta d"----------------" ; 45
+DefensiveEnergy = *-(last_offensive_____ - first_offensive____ +1)  ; to fake the table for ALL weapons
-    dta d"----------------" ; 46
-    dta d"                " ; 47 ; special (no weapon) name to simplify display
-
-    dta d"White Flag      " ; 48 ($30)                                        
-    dta d"Battery         " ; 49                                              
-    dta d"Bal Guidance    " ; 50                                              
-    dta d"Horz Guidance   " ; 51                                              
-    dta d"Hovercraft      " ; 52                                              
-    dta d"Lazy Boy        " ; 53                            
-    dta d"Parachute       " ; 54    - no energy         
-    dta d"Strong Parachute" ; 55    - with energy  (earlier Battery)        
-    dta d"Mag Deflector   " ; 56    - with shield and energy           
-    dta d"Shield          " ; 57    - shield for one shot - no energy       
-    dta d"Heavy Shield    " ; 58    - shield with energy          
-    dta d"Force Shield    " ; 59    - shield with energy and parachute
-    dta d"Super Mag       " ; 60               
-    dta d"Bouncy Castle   " ; 61    - with shield and energy 
-    dta d"Long Schlong    " ; 62                                              
-    dta d"Nuclear Winter  " ; 63
-DefensiveEnergy = * - 48
 	.by 00	; White Flag
 	.by 00	; Heat Guidance
-	.by 00	; Bal Guidance
-	.by 00	; Horz Guidance
 	.by 98	; Let's go!
-	.by 00	; Lazy Boy
 	.by 00	; Parachute       
 	.by 99	; Strong Parachute
 	.by 99	; Mag Deflector
 	.by 00	; Shield
 	.by 99	; Heavy Shield
 	.by 99	; Force Shield
-	.by 00	; Super Mag
 	.by 99	; Bouncy Castle
 	.by 00	; Long Barrel
 	.by 00	; Nuclear Winter
-weaponsOfDeath
+weaponsOfDeath  ; weapons used in tank death animations
 	dta 1,2,3,7,17,18,19,20,21,22,23,24,25,26,27
 weaponsOfDeathEnd
 joyToKeyTable
@@ -606,8 +550,7 @@ gameOverSpritesTop
 ;-------decimal constans
 zero
 digits   dta d"0123456789"
-nineplus dta d"9"+1
+
-space    dta d" "
 ;------credits
 CreditsStart
 	dta d"         "*
@@ -642,7 +585,7 @@ CreditsStart
 	dta d"Shaggy the Atarian, RetroBorsuk, ZP",d"H"*
 	dta d" "*
 	dta d"Additional testin",d"g"*
-	dta d"Arek Peck",d"o"*
+	dta d"Arek and Alex Peck",d"o"*
 	dta d"  "*
 	dta d"Stay tuned for the FujiNet version",d"!"*
 	dta d"         "*

definitions.asm

@@ -13,7 +13,7 @@ PMGraph =  $0800  ; real PM start = $0b00
 linetableL = $0b00 - (screenHeight+1)*2
 linetableH = $0b00 - (screenHeight+1)
 
-display = $1010 ;screen takes $2K due to clearing routine
+display = $1010 ;screen takes $1f68 because it has screenHeight+1 lines because of out of screen tracer(?)
 
 margin = 40 ;mountain drawing Y variable margin
 MaxPlayers = 6
@@ -26,6 +26,7 @@ LongBarrel = 20	; long barrel length
 
 TextBackgroundColor = $02   ; REAL constans - use: LDA #TextBackgroundColor
 TextForegroundColor = $0A
+space = 0  ; space in screencodes
 
 ;character codes for symbols (tank, parachute, etc. )
 char_parachute_______ = $02
@@ -35,78 +36,58 @@ char_clear_flame_____ = $1c
 char_digger__________ = $04
 char_sandhog_________ = $0c
 char_sandhog_offset = char_sandhog_________ - char_digger__________
-
 char_tank1___________ = $20
 char_tank2___________ = $24
 char_tank3___________ = $28
 
 ;Weapon prices (*10 on screen)
-price_Baby_Missile___ = 0      ;_0
+price_Baby_Missile___ =    0  ;_00
-price_Missile________ = 96     ;_1
+price_Missile________ =   96  ;_01
-price_Baby_Nuke______ = 111    ;_2
+price_Baby_Nuke______ =  111  ;_02
-price_Nuke___________ = 144    ;_3
+price_Nuke___________ =  144  ;_03
-price_LeapFrog_______ = 192    ;_4
+price_LeapFrog_______ =  192  ;_04
-price_Funky_Bomb_____ = 293    ;_5
+price_Funky_Bomb_____ =  293  ;_05
-price_MIRV___________ = 456    ;_6
+price_MIRV___________ =  456  ;_06
-price_Death_s_Head___ = 337    ;_7
+price_Death_s_Head___ =  337  ;_07
-price_Napalm_________ = 125    ;_8
+price_Napalm_________ =  125  ;_08
-price_Hot_Napalm_____ = 162    ;_9
+price_Hot_Napalm_____ =  162  ;_09
-price_Tracer_________ = 102    ;_10
+price_Tracer_________ =  102  ;_10
-price_Smoke_Tracer___ = 291    ;_11
+price_Smoke_Tracer___ =  291  ;_11
-price_Baby_Roller____ = 211    ;_12
+price_Baby_Roller____ =  211  ;_12
-price_Roller_________ = 244    ;_13
+price_Roller_________ =  244  ;_13
-price_Heavy_Roller___ = 326    ;_14
+price_Heavy_Roller___ =  326  ;_14
-price_Riot_Charge____ = 230    ;_15
+price_Riot_Charge____ =  230  ;_15
-price_Riot_Blast_____ = 241    ;_16
+price_Riot_Blast_____ =  241  ;_16
-price_Riot_Bomb______ = 259    ;_17
+price_Riot_Bomb______ =  259  ;_17
-price_Heavy_Riot_Bomb = 272    ;_18
+price_Heavy_Riot_Bomb =  272  ;_18
-price_Baby_Digger____ = 136    ;_19
+price_Baby_Digger____ =  136  ;_19
-price_Digger_________ = 176    ;_20
+price_Digger_________ =  176  ;_20
-price_Heavy_Digger___ = 207    ;_21
+price_Heavy_Digger___ =  207  ;_21
-price_Baby_Sandhog___ = 158    ;_22
+price_Baby_Sandhog___ =  158  ;_22
-price_Sandhog________ = 191    ;_23
+price_Sandhog________ =  191  ;_23
-price_Heavy_Sandhog__ = 223    ;_24
+price_Heavy_Sandhog__ =  223  ;_24
-price_Dirt_Clod______ = 104    ;_25
+price_Dirt_Clod______ =  104  ;_25
-price_Dirt_Ball______ = 130    ;_26
+price_Dirt_Ball______ =  130  ;_26
-price_Ton_of_Dirt____ = 171    ;_27
+price_Ton_of_Dirt____ =  171  ;_27
-price_Liquid_Dirt____ = 330    ;_28
+price_Liquid_Dirt____ =  330  ;_28
-price_Dirt_Charge____ = 343    ;_29
+price_Dirt_Charge____ =  343  ;_29
-price_Buy_me_________ = 170	   ;430    ;_30
+price_Buy_me_________ =  170  ;_30
-price_Plasma_Blast___ = $ffff ;274    ;_31
+price_Laser__________ =  277  ;_31
-price_Laser__________ = 277    ;_32
+price_White_Flag_____ =   $0  ;_32
-price______________33 = 0
+price_Battery________ =  300  ;_33            
-price______________34 = 0
+price_Hovercraft_____ =  352  ;_34            
-price______________35 = 0
+price_Parachute______ =  234  ;_35            
-price______________36 = 0
+price_StrongParachute = 1000  ;_36            
-price______________37 = 0
+price_Mag_Deflector__ =  745  ;_37            
-price______________38 = 0
+price_Shield_________ =  224  ;_38            
-price______________39 = 0
+price_Heavy_Shield___ =  628  ;_39            
-price______________40 = 0
+price_Force_Shield___ = 1100  ;_40            
-price______________41 = 0
+price_Bouncy_Castle__ =  512  ;_41            
-price______________42 = 0
+price_Long_Barrel____ = 2100  ;_42            
-price______________43 = 0
+price_Nuclear_Winter_ = 1000  ;_43
-price______________44 = 0
-price______________45 = 0
-price______________46 = 0
-price______________47 = 0   
-price_White_Flag_____ = $0        ;_48_($30)
-price_Battery________ =   300     ;_49            
-price_Bal_Guidance___ = $ffff     ;_50            
-price_Horz_Guidance__ = $ffff     ;_51            
-price_Floating_Tank__ = 352     ;_52            
-price_Lazy_Boy_______ = $ffff     ;_53            
-price_Parachute______ =   234     ;_54            
-price_StrongParachute =  1000     ;_55            
-price_Mag_Deflector__ =   745     ;_56            
-price_Shield_________ =   224     ;_57            
-price_Heavy_Shield___ =   628     ;_58            
-price_Force_Shield___ =  1100     ;_59            
-price_Super_Mag______ = $ffff     ;_60            
-price_Bouncy_Castle__ =   512     ;_61            
-price_Long_Barrel____ =  2100     ;_62            
-price_Nuclear_Winter_ =  1000     ;_63
 ;Weapon indexes (numbers)
 ind_Baby_Missile___ = 0
+first_offensive____ = ind_Baby_Missile___
 ind_Missile________ = 1
 ind_Baby_Nuke______ = 2
 ind_Nuke___________ = 3
@@ -137,39 +118,24 @@ ind_Ton_of_Dirt____ = 27
 ind_Liquid_Dirt____ = 28
 ind_Dirt_Charge____ = 29
 ind_Buy_me_________ = 30
-ind_Plasma_Blast___ = 31
+ind_Laser__________ = 31
-ind_Laser__________ = 32
+last_offensive_____ = ind_Laser__________
-ind______________33 = 0
+ind_White_Flag_____ = 32
-ind______________34 = 0
+first_defensive____ = ind_White_Flag_____
-ind______________35 = 0
+ind_Battery________ = 33            
-ind______________36 = 0
+ind_Hovercraft_____ = 34            
-ind______________37 = 0
+ind_Parachute______ = 35            
-ind______________38 = 0
+ind_StrongParachute = 36            
-ind______________39 = 0
+ind_Mag_Deflector__ = 37            
-ind______________40 = 0
+ind_Shield_________ = 38            
-ind______________41 = 0
+ind_Heavy_Shield___ = 39            
-ind______________42 = 0
+ind_Force_Shield___ = 40                        
-ind______________43 = 0
+ind_Bouncy_Castle__ = 41            
-ind______________44 = 0
+ind_Long_Barrel____ = 42            
-ind______________45 = 0
+ind_Nuclear_Winter_ = 43
-ind______________46 = 0
+last_defensive_____ = ind_Nuclear_Winter_
-ind______________47 = 0   
+number_of_offensives = last_offensive_____ - first_offensive____+1
-ind_White_Flag_____ = 48
+number_of_defensives = (last_defensive_____ - first_defensive____+1)
-ind_Battery________ = 49            
-ind_Bal_Guidance___ = 50            
-ind_Horz_Guidance__ = 51            
-ind_Floating_Tank__ = 52            
-ind_Lazy_Boy_______ = 53            
-ind_Parachute______ = 54            
-ind_StrongParachute = 55            
-ind_Mag_Deflector__ = 56            
-ind_Shield_________ = 57            
-ind_Heavy_Shield___ = 58            
-ind_Force_Shield___ = 59            
-ind_Super_Mag______ = 60            
-ind_Bouncy_Castle__ = 61            
-ind_Long_Barrel____ = 62            
-ind_Nuclear_Winter_ = 63
 ;--------------------------------
 ; names of RMT instruments (sfx)
 ;--------------------------------

display.asm

@@ -18,14 +18,27 @@ OptionsHere
  dta d"Seppuku  :  nevr rare norm oftn alws    "
  dta d"Mountains:   NL   BE   CZ   CH   NP     "
  dta d"Walls    :  none wrap bump boxy rand    "
+;;      01234567890123456789012345678901
+; dta d"Players:  2    3    4    5    6 "
+; dta d"Cash   :none  2K   8K   12K  20K"
+; dta d"Gravity:0.2G 0.5G  1G   2G   4G "
+; dta d"Wind   : 1B   3B   5B   7B   9B "
+; dta d"Rounds : 10   20   30   40   50 "
+; dta d"Missile:slug slow norm fast hare"
+; dta d"Seppuku:nevr rare norm oftn alws"
+; dta d"Hills  : NL   BE   CZ   CH   NP "
+; dta d"Walls  :none wrap bump boxy rand"
 OptionsScreenEnd
+
 ;-----------------------------------------------
 ListOfWeapons
-     ;     0123456789012345678901234567890123456789
+                       ;     0123456789012345678901234567890123456789
- :36 dta d"                                "
+; :number_of_offensives dta d"                                "
+  :32 dta d"                                "
 ListOfWeapons1End
 ListOfDefensiveWeapons
- :16 dta d"                                "
+; :number_of_defensives dta d"                                "
+  :16 dta d"                                "
 ListOfDefensiveWeaponsEnd ;constant useful when clearing
 NameScreen
  dta d"    Enter names of players      "

grafproc.asm

@@ -1100,8 +1100,9 @@ ParachutePresent
 	; check energy of parachute	
 	lda ShieldEnergy,x
 	bne OneTimeParachute
-	mva #0 Parachute
+	lda #$00
-	mva #0 ActiveDefenceWeapon,x ; deactivate defence
+	sta Parachute
+	sta ActiveDefenceWeapon,x ; deactivate defence
 OneTimeParachute
     lda Parachute
     ora #2 ; we set bit nr 1 (nr 0 means that parachute is present)
@@ -1128,16 +1129,13 @@ FallingRight
 	bit PreviousFall	; bit 6 - left
 	bvs EndRightFall
     ; we finish falling right if the tank reached the edge of the screen
-    clc
-    lda XtanksTableL,x
-    adc #$08 ; we'll check right side of the char
-    sta temp
     lda XtanksTableH,x
-    adc #0
+	cmp #>(screenwidth-8-2) ; 2 pixels correction due to a barrel wider than tank
-    sta temp+1
+	bne @+
-    cpw temp #screenwidth-2	; 2 pixels correction due to a barrel wider than tank
+    lda XtanksTableL,x
-    bcs EndRightFall
+	cmp #<(screenwidth-8-2) ; 2 pixels correction due to a barrel wider than tank
-NotLeftEdge
+@   bcs EndRightFall
+NotRightEdge
     ; tank is falling right - modify coorinates
     clc
     lda XtankstableL,x
@@ -1158,6 +1156,7 @@ FallingLeft
     lda XtanksTableL,x
 	cmp #3	; 2 pixels correction due to a barrel wider than tank
     bcc EndLeftFall
+NotLeftEdge
     ; tank is falling left - modify coorinates
     sec
     lda XtankstableL,x
@@ -1205,7 +1204,7 @@ DoNotDrawParachute
 ForceFallLeft
 	sta UnderTank1
 	sty UnderTank2
-	jne TankFallsX
+	jmp TankFallsX
 EndOfFall
     mva #1 Erase
 ;    ldx TankNr

scorch.asm

@@ -36,7 +36,7 @@
 ;we decided it must go in 'English' to let other people work on it
 
 .macro build
-	dta d"1.12" ; number of this build (3 bytes)
+	dta d"1.13" ; number of this build (3 bytes)
 .endm
 
     icl 'definitions.asm'
@@ -278,6 +278,7 @@ SettingBarrel
     mva #1 Erase
     jsr drawtanks
     mva #0 Erase
+	sta COLBAKS		; set background color to black
     jsr PMoutofScreen ;let P/M disappear
 
     ; here gains and losses should be displayed (dollars)
@@ -600,7 +601,7 @@ AfterManualShooting
 	; defensive weapons without flight handling
 	ldx TankNr
 	lda ActiveDefenceWeapon,x
-	cmp #ind_Floating_Tank__ ; Floating Tank
+	cmp #ind_Hovercraft_____
 	beq GoFloat
 	cmp #ind_White_Flag_____ ; White Flag
 	beq ShootWhiteFlag
@@ -1191,9 +1192,9 @@ CreditsScroll
 	sta COLPF2
 	inc CreditsVScrol
 	lda CreditsVScrol
-	cmp #32		;not to fast
+	cmp #32		;not too fast
 	beq nextlinedisplay
-	:2 lsr		;not to fast
+	:2 lsr		;not too fast
 	sta VSCROL
 	jmp EndOfDLI_GO
 nextlinedisplay
@@ -1693,9 +1694,6 @@ noingame
 ;----------------------------------------------
     icl 'artwork/talk.asm'
 ;----------------------------------------------
-font4x4
-    ins 'artwork/font4x4s.bmp',+62
-;----------------------------------------------
 TankFont
     ins 'artwork/tanksv3.fnt',+0,352	; 44 characters only
 ;----------------------------------------------
@@ -1711,15 +1709,15 @@ PLAYER
 
 MODUL    equ $b000                                 ;address of RMT module
     opt h-                                         ;RMT module is standard Atari binary file already
-    ins "artwork/sfx/scorch_str4.rmt"  ;include music RMT module
+    ins "artwork/sfx/scorch_str6.rmt"  ;include music RMT module
     opt h+
 ;
-;
+;----------------------------------------------
-TheEnd
+    org $bf80
-    .ECHO 'TheEnd: ',TheEnd
+font4x4
-    ;.if TheEnd > PMGraph + $300
+    ins 'artwork/font4x4s.bmp',+62
-    ;    .error "memory conflict"
+
-    ;.endif
+
 
 
 

textproc.asm

@@ -272,8 +272,8 @@ AfterManualPurchase
     
     mwa #ListOfDefensiveWeapons WeaponsListDL ;switch to the list of offensive weapons    
     mva #$ff IsInventory
-    mva #$01 WhichList
+    mva #%10000000 WhichList
-    ; offensive weapon - 0, deffensive - 1
+    ; offensive weapon - 0, defensive - %10000000
 	jmp Purchase.GoToActivation
 .endp
 ;--------------------------------------------------
@@ -288,15 +288,14 @@ AfterManualPurchase
         
 ; we are clearing list of the weapons
     mva #$00 WhichList
-    ; offensive weapon - 0, deffensive - 1
+    ; offensive weapon - 0, deffensive - %10000000
 GoToActivation
     mva #$ff LastWeapon
 
-;    mva #0 dmactl
     VDLI DLIinterruptText  ; jsr SetDLI for text (purchase) screen
     jsr PMoutofScreen
     mwa #PurchaseDL dlptrs
-    lda #@dmactl(narrow|dma) ; narro screen width, DL on, P/M off
+    lda #@dmactl(narrow|dma) ; narrow screen width, DL on, P/M off
     sta dmactls
 
     lda #song_supermarket
@@ -346,6 +345,152 @@ AfterPurchase
     stx HowManyOnTheListOff ; amounts of weapons (shells, bullets) in both lists
     stx HowManyOnTheListDef
     
+    jsr CreateList
+
+    bit isInventory  ; 
+    bpl ChoosingItemForPurchase
+    
+    lda whichList
+    bne PositionDefensive
+     
+; calculate positionOnTheList from the activeWeapon (offensives)
+    ldx tankNr
+    lda activeWeapon,x
+    ldy #0
+@
+      cmp IndexesOfWeaponsL1,y
+      beq ?weaponfound
+      iny
+      cpy #(last_offensive_____ - first_offensive____)  ; maxOffensiveWeapons
+    bne @-
+    ; not found apparently?
+    ; TODO: check border case (the last weapon)
+    ldy #0
+    beq ?weaponFound  ; jmp
+PositionDefensive
+    jsr calcPosDefensive
+    
+
+?weaponFound
+    ; weapon index in Y
+    sty positionOnTheList
+
+; Here we have all we need
+; So choose the weapon for purchase ......
+;--------------------------------------------------
+ChoosingItemForPurchase
+;--------------------------------------------------
+    
+    jsr PutLitteChar ; Places pointer at the right position
+    jsr getkey
+    bit escFlag
+    spl:jmp WaitForKeyRelease  ; like jsr ... : rts
+    cmp #$2c ; Tab
+    jeq ListChange
+    cmp #$06  ; cursor left
+    jeq ListChange
+    cmp #$0c ; Return
+    sne:rts
+    cmp #$e
+    beq PurchaseKeyUp
+    cmp #$f
+    beq PurchaseKeyDown
+    cmp #$21 ; Space
+    jeq PurchaseWeaponNow
+    cmp #$07 ; cursor right
+    jeq PurchaseWeaponNow
+    bne ChoosingItemForPurchase
+
+PurchaseKeyUp
+    lda WhichList
+    bpl GoUpOffensive
+    dec PositionOnTheList
+    bpl EndUpX
+    ldy #0 ;HowManyOnTheListDef
+    ;dey
+    sty PositionOnTheList
+    jmp ChoosingItemForPurchase
+GoUpOffensive
+    dec PositionOnTheList
+    bpl MakeOffsetUp
+    ldy #0 ;HowManyOnTheListOff
+    ;dey
+    sty PositionOnTheList
+
+MakeOffsetUp
+    ; If offset is larger than pointer position,
+    ; it must be equal then.
+    lda PositionOnTheList
+    cmp OffsetDL1
+    bcs EndUpX ; do not modify the offset
+    sta OffsetDL1
+EndUpX
+    jmp ChoosingItemForPurchase
+PurchaseKeyDown
+    lda WhichList
+    bpl GoDownOffensive
+    inc:lda PositionOnTheList
+    cmp HowManyOnTheListDef
+    bne EndGoDownX
+    ldy HowManyOnTheListDef
+    dey
+    sty PositionOnTheList
+    jmp ChoosingItemForPurchase
+GoDownOffensive
+    inc:lda PositionOnTheList
+    cmp HowManyOnTheListOff
+    bne MakeOffsetDown
+    ldy HowManyOnTheListOff
+    dey
+    sty PositionOnTheList
+MakeOffsetDown
+    lda OffsetDL1
+    clc
+    adc #15
+    ;if offset+16 is lower than the position then it must =16
+    cmp PositionOnTheList
+    bcs EndGoDownX
+    sec
+    lda PositionOnTheList
+    sbc #15
+    sta OffsetDL1
+EndGoDownX
+    jmp ChoosingItemForPurchase
+
+; swapping the displayed list and setting pointer to position 0
+ListChange
+    mva #0 OffsetDL1
+
+    lda WhichList
+    eor #%10000000  ; flip WhichList
+    sta WhichList
+    bne DeffensiveSelected
+
+    mwa #ListOfWeapons WeaponsListDL
+    lda isInventory
+    beq @+
+    ; inventory
+    jsr calcPosOffensive
+    jmp ChoosingItemForPurchase
+@
+    mva #0 PositionOnTheList
+    jmp ChoosingItemForPurchase
+
+DeffensiveSelected
+    mwa #ListOfDefensiveWeapons WeaponsListDL
+    lda isInventory
+    beq @+
+    jsr calcPosDefensive
+    jmp ChoosingItemForPurchase
+@
+    mva #0 positionOnTheList
+    jmp ChoosingItemForPurchase
+
+.endp
+;
+;--------------------------------------------------
+.proc CreateList
+;--------------------------------------------------
 ; Creating full list of the available weapons for displaying
 ; in X there is an index of the weapon to be checked,
 ; in 'Xbyte' address of the first char in filled screen line
@@ -362,9 +507,9 @@ CreateList
     jmi itIsInventory
     
     ; put "Purchase" on the screen
-	mwa #PurchaseDescription PurActDescAddr
+    mwa #PurchaseDescription PurActDescAddr
-	; and Title
+    ; and Title
-	mwa #PurchaseTitle DLPurTitleAddr
+    mwa #PurchaseTitle DLPurTitleAddr
 
     ; checking if we can afford buying this weapon
     ldx temp
@@ -408,7 +553,7 @@ CreateList
     lda WeaponPriceH,x
     sta decimal+1
     jsr displaydec5
-    ldy #25		; overwrite first digit (allways space - no digit :) )
+    ldy #25     ; overwrite first digit (allways space - no digit :) )
     lda #04 ; "$"
     sta (xbyte),y
 
@@ -416,9 +561,9 @@ CreateList
 
 itIsInventory
     ; put "Activate" on the screen
-	mwa #ActivateDescription PurActDescAddr
+    mwa #ActivateDescription PurActDescAddr
-	; and Title
+    ; and Title
-	mwa #InventoryTitle DLPurTitleAddr
+    mwa #InventoryTitle DLPurTitleAddr
 
     ldx temp
     lda TanksWeaponsTableL,y
@@ -487,8 +632,8 @@ notInventory
 @
     cpx LastWeapon
     bne NotTheSameAsLastTime
-    lda WhichList
+    bit WhichList
-    bne @+
+    bmi @+
     lda HowManyOnTheListOff
     sta PositionOnTheList
     jmp NotTheSameAsLastTime
@@ -498,7 +643,7 @@ notInventory
 NotTheSameAsLastTime
     ; increase appropriate counter
     txa
-    cpx #$30
+    cpx #last_offensive_____+1
     bcs DefenceList
     ldy HowManyOnTheListOff
     sta IndexesOfWeaponsL1,y
@@ -516,14 +661,15 @@ NoWeapon
 
     ; next weapon. If no more weapons then finish!
     inx
-    cpx #$30
+    cpx #last_offensive_____+1
     bne NoDefense
 
 ; if we got to the defense weapons,
 ; we switch address to the second table.
     mwa #ListOfDefensiveWeapons xbyte
 NoDefense
-    cpx #$40
+    cpx #last_defensive_____+1
+    
     jne CreateList
 
     ; offset may be only too big
@@ -541,7 +687,6 @@ WeHaveOffset
 
     ; Multiply number on list 1 by 32 and set address
     ; of the first erased char.
-    ; (multiplying taken from book of Ruszczyc 'Assembler 6502'
 
     lda HowManyOnTheListOff
     sta xbyte ; multiplier (temporarily here, it will be erased anyway)
@@ -554,30 +699,19 @@ WeHaveOffset
     bne @-
     
     ; add to the address of the list
-    clc
+    adw xbyte #ListOfWeapons
-    lda xbyte
+    ldy #0
-    adc #<ListOfWeapons
-    tay
-    lda xbyte+1
-    adc #>ListOfWeapons
-    sta xbyte+1
-    stx xbyte
-    txa ; now there is zero here
 ClearList1
+    cpw xbyte #ListOfWeapons1End
+	beq ListCleared1
+    tya ; now there is zero here
     sta (xbyte),y
-    iny
+    inw xbyte
-    bne DoNotIncHigher1
+    jmp ClearList1
-    inc xbyte+1
+ListCleared1
-DoNotIncHigher1
-    cpy #<ListOfWeapons1End
-    bne ClearList1
-    ldx xbyte+1
-    cpx #>ListOfWeapons1End
-    bne ClearList1
-
     ; And the same we do with the second list
 
-    ; Multiply number on list 1 by 40 and set address
+    ; Multiply number on list 1 by 32 and set address
     ; of the first erased char.
     lda HowManyOnTheListDef
     sta xbyte ; multiplier (temporarily here, it will be erased anyway)
@@ -590,181 +724,33 @@ DoNotIncHigher1
     bne @-
 
     ; add to the address of the list
-    clc
+    adw xbyte #ListOfDefensiveWeapons
-    lda xbyte
+    ldy #0
-    adc #<ListOfDefensiveWeapons
-    tay
-    lda xbyte+1
-    adc #>ListOfDefensiveWeapons
-    sta xbyte+1
-    stx xbyte
-    txa ; now there is zero here
 ClearList2
+    cpw xbyte #ListOfDefensiveWeaponsEnd
+	beq ListCleared2
+    tya ; now there is zero here
     sta (xbyte),y
-    iny
+    inw xbyte
-    bne DoNotIncHigher2
+    jmp ClearList2
-    inc xbyte+1
+ListCleared2
-DoNotIncHigher2
-    cpy #<ListOfDefensiveWeaponsEnd
-    bne ClearList2
-    ldx xbyte+1
-    cpx #>ListOfDefensiveWeaponsEnd
-    bne ClearList2
 
 ; here we have pretty cool lists and there is no brute force
 ; screen clearing at each list refresh
 ; (it was very ugly - I checked it :)
-
+    rts
-    bit isInventory  ; 
-    bpl ChoosingItemForPurchase
-    
-    lda whichList
-    bne PositionDefensive
-     
-; calculate positionOnTheList from the activeWeapon (offensives)
-    ldx tankNr
-    lda activeWeapon,x
-    ldy #0
-@
-      cmp IndexesOfWeaponsL1,y
-      beq ?weaponfound
-      iny
-      cpy #48  ; maxOffensiveWeapons
-    bne @-
-    ; not found apparently?
-    ; TODO: check border case (the last weapon)
-    ldy #0
-    beq ?weaponFound  ; jmp
-PositionDefensive
-    jsr calcPosDefensive
-    
-
-?weaponFound
-    ; weapon index in Y
-    sty positionOnTheList
-
-; Here we have all we need
-; So choose the weapon for purchase ......
-;--------------------------------------------------
-ChoosingItemForPurchase
-;--------------------------------------------------
-    
-    jsr PutLitteChar ; Places pointer at the right position
-    jsr getkey
-    bit escFlag
-    spl:jmp WaitForKeyRelease  ; like jsr ... : rts
-    cmp #$2c ; Tab
-    jeq ListChange
-    cmp #$06  ; cursor left
-    jeq ListChange
-    cmp #$0c ; Return
-    sne:rts
-    cmp #$e
-    beq PurchaseKeyUp
-    cmp #$f
-    beq PurchaseKeyDown
-    cmp #$21 ; Space
-    jeq PurchaseWeaponNow
-    cmp #$07 ; cursor right
-    jeq PurchaseWeaponNow
-    bne ChoosingItemForPurchase
-
-PurchaseKeyUp
-    lda WhichList
-    beq GoUpOffensive
-    dec PositionOnTheList
-    bpl EndUpX
-    ldy #0 ;HowManyOnTheListDef
-    ;dey
-    sty PositionOnTheList
-    jmp ChoosingItemForPurchase
-GoUpOffensive
-    dec PositionOnTheList
-    bpl MakeOffsetUp
-    ldy #0 ;HowManyOnTheListOff
-    ;dey
-    sty PositionOnTheList
-
-MakeOffsetUp
-    ; If offset is larger than pointer position,
-    ; it must be equal then.
-    lda PositionOnTheList
-    cmp OffsetDL1
-    bcs EndUpX ; do not modify the offset
-    sta OffsetDL1
-EndUpX
-    jmp ChoosingItemForPurchase
-PurchaseKeyDown
-    lda WhichList
-    beq GoDownOffensive
-    inc:lda PositionOnTheList
-    cmp HowManyOnTheListDef
-    bne EndGoDownX
-    ldy HowManyOnTheListDef
-    dey
-    sty PositionOnTheList
-    jmp ChoosingItemForPurchase
-GoDownOffensive
-    inc:lda PositionOnTheList
-    cmp HowManyOnTheListOff
-    bne MakeOffsetDown
-    ldy HowManyOnTheListOff
-    dey
-    sty PositionOnTheList
-MakeOffsetDown
-    lda OffsetDL1
-    clc
-    adc #15
-    ;if offset+16 is lower than the position then it must =16
-    cmp PositionOnTheList
-    bcs EndGoDownX
-    sec
-    lda PositionOnTheList
-    sbc #15
-    sta OffsetDL1
-EndGoDownX
-    jmp ChoosingItemForPurchase
-
-; swapping the displayed list and setting pointer to position 0
-ListChange
-    mva #0 OffsetDL1
-
-    lda WhichList
-    eor #$01
-    sta WhichList
-    bne DeffensiveSelected
-
-    mwa #ListOfWeapons WeaponsListDL
-    lda isInventory
-    beq @+
-    ; inventory
-    jsr calcPosOffensive
-    jmp ChoosingItemForPurchase
-@
-    mva #0 PositionOnTheList
-    jmp ChoosingItemForPurchase
-
-DeffensiveSelected
-    mwa #ListOfDefensiveWeapons WeaponsListDL
-    lda isInventory
-    beq @+
-    jsr calcPosDefensive
-    jmp ChoosingItemForPurchase
-@
-    mva #0 positionOnTheList
-    jmp ChoosingItemForPurchase
-
 .endp
-; weapon purchase routne increases number of possessed bullets
+
-; decreases cash and jumps to screen refresh
 ;--------------------------------------------------
 .proc PurchaseWeaponNow
+; weapon purchase routne increases number of possessed bullets
+; decreases cash and jumps to screen refresh
 ;--------------------------------------------------
     bit isInventory
     bmi inventorySelect
 
-    lda WhichList
+    bit WhichList
-    bne PurchaseDeffensive
+    bmi PurchaseDeffensive
 
     ; here we purchase the offensive weapon
     ldy PositionOnTheList
@@ -836,8 +822,8 @@ LessThan100
     jmp Purchase.AfterPurchase
 
 inventorySelect
-    lda whichList
+    bit whichList
-    bne invSelectDef
+    bmi invSelectDef
 
     ldy PositionOnTheList
     lda IndexesOfWeaponsL1,y
@@ -909,7 +895,7 @@ DefActivationEnd
       cmp IndexesOfWeaponsL2,y
       beq ?weaponfound
       iny
-      cpy #8*2  ; maxDefensiveWeapon
+      cpy #(last_defensive_____ - first_defensive____)  ; maxDefensiveWeapon
     bne @-
     ; not found apparently?
     ; TODO: check border case (the last weapon)
@@ -932,7 +918,7 @@ DefActivationEnd
       cmp IndexesOfWeaponsL1,y
       beq ?weaponfound
       iny
-      cpy #8*5  ; maxOffensiveWeapon
+      cpy #(last_offensive_____ - first_offensive____)  ; maxOffensiveWeapon
     bne @-
     ; not found apparently?
     ; TODO: check border case (the last weapon)
@@ -948,32 +934,31 @@ DefActivationEnd
 .proc PutLitteChar
     ; first let's clear both lists from little chars
     mwa #ListOfWeapons xbyte
-    ldx #52 ; there are 52 lines total
+    ldx #last_defensive_____ ; there are xx lines total
     ldy #$00
 EraseLoop
     tya  ; lda #$00
     sta (xbyte),y
-    adw xbyte #32
+    adw xbyte #32  ; narrow screen
     dex
     bpl EraseLoop
 
     ; now let's check which list is active now
-    lda WhichList
+    bit WhichList
-    beq CharToList1
+    bpl CharToList1
     ; we are on the second list (deffensive)
     ; so there is no problem with scrolling
     mwa #ListOfDefensiveWeapons xbyte
     ldx PositionOnTheList
     beq SelectList2 ; if there is 0 we add nothing
 AddLoop2
-    adw xbyte #32
+    adw xbyte #32  ; narrow screen
     dex
     bne AddLoop2
 SelectList2
     lda #$7f ; little char (tab) - this is the pointer
     sta (xbyte),y
-    ; now we clear flags of presence of list "out of screen"
+    ; now we clear up and down arrows indicating more content below or above screen
-    ; unfortunately I am now sure what it means... :(
     ldx #<EmptyLine
     ldy #>EmptyLine
     stx MoreUpdl
@@ -988,7 +973,7 @@ CharToList1
     ldx PositionOnTheList
     beq SelectList1 ; if there is 0 we add nothing
 AddLoop1
-    adw xbyte #32
+    adw xbyte #32  ; narrow screen
     dex
     bne AddLoop1
 SelectList1
@@ -999,7 +984,7 @@ SelectList1
     ldx OffsetDL1
     beq SetWindowList1 ; if zero then add nothing
 LoopWindow1
-    adw xbyte #32
+    adw xbyte #32  ; narrow screen
     dex
     bne LoopWindow1
 SetWindowList1
@@ -1021,7 +1006,7 @@ NoArrowUp
     ldx #<EmptyLine
     ldy #>EmptyLine
     sec
-    sbc #17
+    sbc #17  ; ????
     bmi NoArrowDown
     cmp OffsetDL1
     bcc NoArrowDown
@@ -1036,9 +1021,6 @@ NoArrowDown
 .proc EnterPlayerNames
     ;entering names of players
     mwa #NameDL dlptrs
-;    lda dmactls
-;    and #$fc
-;    ora #$01     ; narrow screen (32 chars)
     lda #%00110001 ; narrow screen width, DL on, P/M off
     sta dmactls
     VDLI DLIinterruptText  ; jsr SetDLI for text (names) screen
@@ -1079,12 +1061,12 @@ NoArrowDown
     jsr displaybyte
     jsr HighlightLevel ; setting choosen level of the opponent (Moron, etc)
 
-    ; clear tank name editor field
+    ; clear tank name editor field - not necessary
-    ldx #8
+;    ldx #8
-    lda #0
+;    lda #0
-@     sta NameAdr,x
+;@     sta NameAdr,x
-      dex
+;      dex
-    bpl @-
+;    bpl @-
     
     ; copy existing name and place cursor at end
     lda TankNr
@@ -1102,21 +1084,22 @@ NoArrowDown
 endOfTankName
 
 @	lda NameAdr,y
+	and #$7f
 	bne LastNameChar
 	dey
 	bpl @-
 LastNameChar
+	cpy #7
+	beq @+
 	iny
-
+@	sty PositionInName
-    lda #$80 ; place cursor on the end
+;	lda NameAdr,y
-    sta NameAdr,y
+;    ora #$80 ; place cursor on the end
-	dey
+;    sta NameAdr,y
-	bpl @+
-	iny	; if old name is empty or first time entering
-@   sty PositionInName
 
 
 CheckKeys
+	jsr CursorDisplay
     jsr getkey
     bit escFlag
     spl:rts
@@ -1133,19 +1116,12 @@ IsLetter
 YesLetter
     lda scrcodes,x ; we have screen code of the char
     ldx PositionInName
-    bne NotFirstLetter
-    and #$3f ; First letter should be Capital letter
-    ; (nice trick does not affect digits)
-NotFirstLetter
     sta NameAdr,x
     inx
-    lda #$80 ; cursor behind the char
-    sta NameAdr,x
     cpx #$08 ; is there 8 characters?
-    beq CheckKeys  ; if so, nothing increased
+	bne @+
-    stx PositionInName ; if not, we store
+	dex
-    ; position incremented by 1
+@	stx PositionInName ; if not, we store
-
     jmp CheckKeys
 CheckFurtherX01 ; here we check Tab, Return and Del
     cmp #$0c ; Return
@@ -1165,15 +1141,19 @@ CheckFurtherX01 ; here we check Tab, Return and Del
     bne CheckKeys
     ; handling backing one char
     ldx PositionInName
-    beq FirstChar
+    beq FirstChar	; ferst char - no go back
+	cpx #7
+	bne NotLastChar
+    lda NameAdr,x
+	and #$7f
+	bne LastIsNotSpace	; last char not empty - first clear last char (no go back)
+NotLastChar
     dex
+LastIsNotSpace
 FirstChar
-    lda #$80
-    sta NameAdr,x
-    lda #$00
-    sta NameAdr+1,x
-    sta NameAdr+2,x
     stx PositionInName
+    lda #0
+    sta NameAdr,x
     jmp CheckKeys
 ChangeOfLevelUp ; change difficulty level of computer opponent
     inc:lda DifficultyLevel
@@ -1213,6 +1193,17 @@ ChangeOfLevel3Down
     jmp CheckKeys
 ;----
 EndOfNick
+	; now check long press joy button (or Return...)
+    mva #0 pressTimer ; reset
+WaitForLongPress
+    lda STRIG0	; wait only for joy long press
+	bne ShortJoyPress
+    lda pressTimer
+    cmp #25  ; 1/2s
+    bcc WaitForLongPress
+    jsr EnterNameByJoy
+    jmp CheckKeys
+ShortJoyPress
     ; storing name of the player and its level
 
     ; level of the computer opponent goes to
@@ -1262,8 +1253,113 @@ nextchar05
     bne nextchar05
     rts
 .endp
+;--------------------------------------------------
+.proc CursorDisplay
+	ldy #7
+CursorLoop
+	lda NameAdr,y
+	and #$7f
+	cpy #0
+	bne NotFirstLetter
+	and #$3f ; First letter should be Capital letter
+    ; (nice trick does not affect digits)
+NotFirstLetter
+	cpy PositionInName
+	bne @+
+    ora #$80 ; place cursor
+@    sta NameAdr,y
+	dey
+	bpl CursorLoop
+	rts
+.endp
+;--------------------------------------------------
+.proc EnterNameByJoy
+    mva #sfx_keyclick sfx_effect
+	jsr CursorDisplay
+	ldy PositionInName
+	; now in Y we have PositionInName
+	ldx #(keycodesEnd-keycodes)
+SearchCharacter
+	lda NameAdr,y
+	and #$7f
+	cmp #$20
+	bcc CharOK	; digit or space
+	cmp #$60
+	bcs CharOK	; not capital letter
+	ora #$40
+CharOK
+	cmp scrcodes,x
+	beq CharacterFound
+	dex
+	bpl SearchCharacter
+	inx
+CharacterFound
+	; now in X we have Character (index) on PositionInName
+	; wait for centered joy
+    mva #128-15 pressTimer ; reset (trick)
+@	lda STICK0
+	and #$0f
+	cmp #$0f
+	beq checkjoy
+	bit pressTimer	; trick (no A change)
+	bpl @-
+checkjoy	
+	lda STICK0
+	and #$0f
+	cmp #$0f
+	bne JoyNotCentered
 
+notpressedJoy
+	;fire
+	lda STRIG0
+	beq checkjoy	; fire still pressed
+	rts
 
+JoyNotCentered
+	; this is a place for code :)
+	cmp #7
+	bne NoRight
+	; joy right
+	cpy #7
+	beq GoToMainLoop	; jast character
+	iny
+	bne GoToMainLoop
+NoRight
+	cmp #11
+	bne NoLeft
+	; joy left
+	lda #0
+	sta NameAdr,y
+	dey
+	bpl GoToMainLoop
+	iny
+	beq GoToMainLoop
+NoLeft
+	cmp #14
+	bne NoUp
+	; joy up
+	cpx #(keycodesEnd-keycodes-1)
+	bne @+
+	ldx #$00 	; set to first character index (loop)
+	beq CharAndMainLoop
+@	inx
+	bne CharAndMainLoop
+NoUp
+	cmp #13
+	bne EnterNameByJoy	; not down
+	; joy down
+	dex
+	bpl CharAndMainLoop
+	ldx #(keycodesEnd-keycodes-1) 	; set to last character index (loop)
+CharAndMainLoop
+	lda scrcodes,x
+	sta NameAdr,y
+GoToMainLoop
+	sty PositionInName
+	jmp EnterNameByJoy
+
+.endp
+;--------------------------------------------------
 .proc HighlightLevel
     ; this routine highlights the choosen
     ; level of the computer opponent
@@ -1339,7 +1435,7 @@ displayloop
 	beq noleading0	; if 00000 - last 0 must be
 	cmp zero
 	bne noleading0
-	lda space
+	lda #space
 	beq displaychar	; space = 0 !
 noleading0
 	inx		; set flag (no leading zeroes to cut)
@@ -1386,7 +1482,7 @@ TooLittle001 dex
     lda decimalresult
     cmp zero
     bne decimalend1
-    lda space
+    lda #space
     sta decimalresult
 
 decimalend1
@@ -2212,10 +2308,11 @@ EndOfCredits
     lda ActiveDefenceWeapon,x
     bne ActiveDefence
     ; clear brackets
-    lda #$00 ; space
+    lda #space
     sta textbuffer+80+22
     sta textbuffer+80+39
-    lda #47 ; no weapon name
+    mwa #emptyLine temp
+    jmp ClearingOnly    
 ActiveDefence
     sta temp ;get back number of the weapon
     mva #0 temp+1
@@ -2227,7 +2324,7 @@ ActiveDefence
     bpl @-
  
     adw temp #NamesOfWeapons
-
+ClearingOnly
     ldy #15
 @
       lda (temp),y
@@ -2249,7 +2346,7 @@ ActiveDefence
     ;displaying the energy of a tank shield (if exist)
     ;---------------------
     ; clear (if no shield)
-    lda #$00    ; space
+    lda #space
     sta textbuffer+40+10
     sta textbuffer+40+11
     sta textbuffer+40+12
@@ -2278,7 +2375,7 @@ NoShieldEnergy
     bmi DisplayLeftWind
     lda #$7f  ; (tab) char
     sta textbuffer+80+20
-    lda #0  ;space
+    lda #space
     sta textbuffer+80+17
     beq DisplayWindValue
 DisplayLeftWind
@@ -2291,7 +2388,7 @@ DisplayLeftWind
       sta temp+1
     lda #$7e  ;(del) char
     sta textbuffer+80+17
-    lda #0 ;space
+    lda #space
     sta textbuffer+80+20
 DisplayWindValue
     :4 lsrw temp ;divide by 16 to have a nice value on a screen
@@ -2333,7 +2430,7 @@ AngleToRight
     sta decimal
     lda #$7f  ; (tab) character
     sta textbuffer+40+25
-    lda #0  ;space
+    lda #space
     sta textbuffer+40+22
     beq AngleDisplay
 AngleToLeft
@@ -2344,13 +2441,13 @@ AngleToLeft
     sta decimal
     lda #$7e  ;(del) char
     sta textbuffer+40+22
-    lda #0 ;space
+    lda #space
     sta textbuffer+40+25
     beq AngleDisplay    
 VerticallyUp
     ; now we have value 90
     sta decimal
-    lda #0  ;space
+    lda #space
     sta textbuffer+40+25
     sta textbuffer+40+22
 

variables.asm

@@ -152,6 +152,8 @@ LowResDistances ; coarse tank positions divided by 4 (to be in just one byte)
 ;----------------------------------------------------
 TargetTankNr	; Target tank index (for AI routines)
 	.DS 1
+SecondTryFlag	; For precise AI aiming
+	.DS 1
 ;----------------------------------------------------
 ;Erase    .DS 1 ; if 1 only mask of the character is printed
                ; on the graphics screen. if 0 character is printed normally
@@ -204,6 +206,7 @@ EndOfTheFallFlag  .DS 1   ; in case of the infinite fall
 ;Parachute .DS 1 ; are you insured with parachute?
 FloatingAlt	.DS 1	; floating tank altitude
 FunkyWallFlag = FloatingAlt	; reuse this variable in different weapon (Funky Bomb)!
+PreferHumansFlag = FloatingAlt ; second reuse in AI Aim proc
 ;----------------------------------------------------
 ;Flight
 ;variables for 5 missiles (used for mirv)
@@ -270,9 +273,9 @@ temptankNr .DS 1
     ; tables with indexes of weapons on the right lists
     ; OK (2022) so, L1 is list of offensive weapons, L2 - defensive
 IndexesOfWeaponsL1
-    .ds 8*5 ;  max 40 offensive weapons. this is wrong, should be 48, still only 32 defined.
+    .ds (last_offensive_____ - first_offensive____+1)
 IndexesOfWeaponsL2
-    .ds 8*2 ;  max 16 defensive weapons. 
+    .ds (last_defensive_____ - first_defensive____+1)
 ;----------------------------------------------------
 
 ; variables storing amount of weapons on the first and second
@@ -291,7 +294,7 @@ LastWeapon
     ; and the cursor must be placed elsewhere
     .DS 1
 WhichList ; list currently on the screen
-    ; (0-offensive, 1-defensive)
+    ; (0-offensive, %10000000 - defensive (check with bit:bmi for defensives)
     .DS 1
 ;OffsetDL1   .DS 1 ; offset of the list screen (how many lines)....
 
@@ -326,17 +329,17 @@ LaserCoordinate .DS 8 ; 2,2,2,2
 ; from $30 the defensive weapons begin
 TanksWeapons
 TanksWeapon1
-    .DS [64]
+    .DS [last_defensive_____ - first_offensive____ +1]
 TanksWeapon2
-    .DS [64]
+    .DS [last_defensive_____ - first_offensive____ +1]
 TanksWeapon3
-    .DS [64]
+    .DS [last_defensive_____ - first_offensive____ +1]
 TanksWeapon4
-    .DS [64]
+    .DS [last_defensive_____ - first_offensive____ +1]
 TanksWeapon5
-    .DS [64]
+    .DS [last_defensive_____ - first_offensive____ +1]
 TanksWeapon6
-    .DS [64]
+    .DS [last_defensive_____ - first_offensive____ +1]
 
 mountaintable ;table of mountains (size=screenwidth)
     .DS [screenwidth]

weapons.asm

@@ -19,39 +19,38 @@
     pha
     rts
 ExplosionRoutines
-    .word babymissile-1
+    .word babymissile-1              ;Baby_Missile___;_00    
-    .word missile-1
+    .word missile-1                  ;Missile________;_01
-    .word babynuke-1
+    .word babynuke-1                 ;Baby_Nuke______;_02
-    .word nuke-1
+    .word nuke-1                     ;Nuke___________;_03
-    .word leapfrog-1
+    .word leapfrog-1                 ;LeapFrog_______;_04
-    .word funkybomb-1
+    .word funkybomb-1                ;Funky_Bomb_____;_05
-    .word mirv-1
+    .word mirv-1                     ;MIRV___________;_06
-    .word deathshead-1
+    .word deathshead-1               ;Death_s_Head___;_07
-    .word napalm-1 ;napalm
+    .word napalm-1                   ;Napalm_________;_08
-    .word hotnapalm-1 ;hotnapalm
+    .word hotnapalm-1                ;Hot_Napalm_____;_09
-    .word tracer-1
+    .word tracer-1                   ;Tracer_________;_10
-    .word tracer-1 ;smoketracer
+    .word tracer-1                   ;Smoke_Tracer___;_11
-    .word babyroller-1
+    .word babyroller-1               ;Baby_Roller____;_12
-    .word roller-1
+    .word roller-1                   ;Roller_________;_13
-    .word heavyroller-1
+    .word heavyroller-1              ;Heavy_Roller___;_14
-    .word riotcharge-1
+    .word riotcharge-1               ;Riot_Charge____;_15
-    .word riotblast-1
+    .word riotblast-1                ;Riot_Blast_____;_16
-    .word riotbomb-1
+    .word riotbomb-1                 ;Riot_Bomb______;_17
-    .word heavyriotbomb-1
+    .word heavyriotbomb-1            ;Heavy_Riot_Bomb;_18
-    .word babydigger-1
+    .word babydigger-1               ;Baby_Digger____;_19
-    .word digger-1
+    .word digger-1                   ;Digger_________;_20
-    .word heavydigger-1
+    .word heavydigger-1              ;Heavy_Digger___;_21
-    .word babysandhog-1
+    .word babysandhog-1              ;Baby_Sandhog___;_22
-    .word sandhog-1
+    .word sandhog-1                  ;Sandhog________;_23
-    .word heavysandhog-1
+    .word heavysandhog-1             ;Heavy_Sandhog__;_24
-    .word dirtclod-1
+    .word dirtclod-1                 ;Dirt_Clod______;_25
-    .word dirtball-1
+    .word dirtball-1                 ;Dirt_Ball______;_26
-    .word tonofdirt-1
+    .word tonofdirt-1                ;Ton_of_Dirt____;_27
-    .word liquiddirt-1
+    .word liquiddirt-1               ;Liquid_Dirt____;_28
-    .word dirtcharge-1
+    .word dirtcharge-1               ;Dirt_Charge____;_29
-    .word VOID-1 ;earthdisrupter
+    .word VOID-1                     ;Buy_me_________;_30
-    .word VOID-1 ;plasmablast
+    .word laser-1                    ;Laser__________;_31
-    .word laser-1
 
 VOID
 tracer
@@ -670,21 +669,6 @@ DiggerCharacter
     mva EndOfTheBarrelY ybyte
     mva #0 ybyte+1
     
-    ;clc
-    ;lda xtankstableL,x
-    ;adc EndOfTheBarrelX,y ; correction of the end of the barrel point (X)
-    ;sta xbyte
-    ;lda xtankstableH,x
-    ;adc #0
-    ;sta xbyte+1
-    ;sec
-    ;lda ytankstable,x
-    ;sbc EndOfTheBarrelY,y ; correction of the end of the barrel point (Y)
-    ;sta ybyte
-	;lda #$00
-	;sbc #$00
-    ;sta ybyte+1
-
     mwa xdraw LaserCoordinate
     mwa ydraw LaserCoordinate+2
     mwa xbyte LaserCoordinate+4
@@ -1449,12 +1433,14 @@ CTRLPressedLeft
 pressedTAB
     mva #sfx_purchase sfx_effect
     ldx TankNr
-    inc ActiveWeapon,x
+	lda ActiveWeapon,x
-    lda ActiveWeapon,x
+	cmp #last_offensive_____ ; the last possible offensive weapon
-    cmp #$30 ; number of offensive weapons
+	bne ?notlasttofirst
-    bne @+
+      lda #first_offensive____	; #0
-      lda #0
       sta ActiveWeapon,x
+	  beq @+	; allways = 0
+?notlasttofirst	
+    inc ActiveWeapon,x
 @
     lda ActiveWeapon,x
     jsr HowManyBullets ; and we have qty of owned shells. Ufff....
@@ -1464,10 +1450,14 @@ pressedTAB
 
 CTRLpressedTAB
     ldx TankNr
-    dec ActiveWeapon,x
+	lda ActiveWeapon,x
-    bpl @+
+	cmp #first_offensive____	; #0
-      lda #$2f ; the last possible offensive weapon
+	bne ?notfirsttolast
+      lda #last_offensive_____ ; the last possible offensive weapon
       sta ActiveWeapon,x
+	  bne @+	; allways <> 0
+?notfirsttolast
+    dec ActiveWeapon,x
 @
     lda ActiveWeapon,x
     jsr HowManyBullets ; and we have qty of owned shells. Ufff....
@@ -3028,7 +3018,8 @@ RangesChecked
 .endp
 ;--------------------------------------------------
 .proc ClearScreenSoilRange
-; cleanup of the soil fall down ranges (left and right) ;--------------------------------------------------
+; cleanup of the soil fall down ranges (left and right) 
+;--------------------------------------------------
 	mwa #screenwidth RangeLeft
 	lda #0
 	sta RangeRight
@@ -3043,17 +3034,6 @@ RangesChecked
     jsr DecreaseWeapon
     ; and here we have amount of possessed ammo for given weapon
     sta WeaponDepleted
-;    ;cmp #0
-;    bne AmmunitionDecreased
-;      ;lda #0   ;if ammo for given weapon ends
-;      sta ActiveWeapon,x ;then set to default weapon (baby missile)
-;AmmunitionDecreased
-;    lda #99
-;    ldy #0
-;    sta (weaponPointer),y  ;baby missile - always 99 pieces
-;
-;    ;there is a good value in weaponPointer after jsr DecreaseWeapon
-;
     rts
 .endp