It's easy game

README.md

@@ -1,16 +1,22 @@
-Technical Difficulties No Internet (aka The Dino Crisis)
+# Technical Difficulties No Internet (aka The Dino Crisis)
 Warsaw, Miami 2024
 
-A very small entry to (SV2K24SE)[https://sillyventure.eu/en/].
+A very small entry to [SV2K24SE](https://sillyventure.eu/en/).
+
 Code: [Pecus](https://github.com/Pecusx) and [pirx](https://github.com/pkali)
+
 Msx: Alex and Jochen Hippel
 
-Used portions of LZSS player by [DMSC](https://github.com/dmsc/lzss-sap)
+Used portions of LZSS player by [dmsc](https://github.com/dmsc/lzss-sap)
 
 Assembly:
-`mads dino.asm -o:dino_.xex -d:ALONE=0`
+```
-`mads intro/tech_diff.asm -o:tech_diff.xex`
+mads dino.asm -o:dino_.xex -d:ALONE=0
-`cat intro/tech_diff.xex dino_.xex > tdc.xex; rm dino_.xex`
+mads intro/tech_diff.asm -o:tech_diff.xex
+cat intro/tech_diff.xex dino_.xex > tdc.xex; rm dino_.xex
+```
 
 Stand-alone game (no intro):
-`mads dino.asm -o:dino.xex -d:ALONE=1`
+```
+mads dino.asm -o:dino.xex -d:ALONE=1
+```

artwork/shapes.asm

@@ -142,10 +142,11 @@ ShapesTableH
     .by >ground_1
     .by >ground_2
 diff_object_gap ; min distance between obstacles by difficulty level
-    .by 18,17,15,13,11,9,8,7,6,5,5,5,5,5,5,5,5,5,5,5,5,5,5
+    .by 24,22,20,18,16,14,12,11,10,9,8,8,8,8,8,8,8,8,8,8,8,8,8
+    ;.by 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
 ;----------vars----------
 CloudHpos   .by 0,0,0,0
 diff_level  .ds 1
-DinoJumpTr  .by 1,2,3,4,4,3,2,1
+DinoJumpTr  .by 1,2,3,4,4,4,3,2,1
-JumpLen = 7
+JumpLen = 8
 .endif  ; .IF *>0

dino.asm

@@ -1,5 +1,5 @@
 SCR_HEIGHT = 8
-WORLD_LENGTH = 64
+WORLD_LENGTH = 48
 DIFF_LEVELS = 20
 .IFNDEF ALONE
     .def ALONE = 1 ; standalone version
@@ -25,16 +25,17 @@ swap_table=$0600    ; table for swap bytes in left characters :)
     .zpvar Hit              .byte
     .zpvar Level            .byte
     .zpvar play_flag        .byte
+    .zpvar NTSCounter       .byte
 ;---------------------------------------------------
     icl 'lib/ATARISYS.ASM'
     icl 'lib/MACRO.ASM'
 ;---------------------------------------------------
     .IF ALONE =1
-        ; dark screean and BASIC off
         org $2000
 PLAYER
         icl 'music/playlzs16.asm'  ; Music Player
         ORG $3000
+        ; dark screean and BASIC off
         mva #0 dmactls             ; dark screen
         mva #$ff portb
         ; and wait one frame :)
@@ -72,12 +73,12 @@ status_line_addr
     :4 .byte SKIP8
     .byte MODE2
 
-    .byte SKIP8,SKIP8 ; empty lines
+    .byte SKIP8,SKIP8,SKIP8 ; empty lines
 
-    .rept SCR_HEIGHT, #
+    .rept SCR_HEIGHT-1, #
       .byte MODE2+LMS+SCH   ; gr.0+LMS+HSCRL
 line:1_addr
-        .word screen+$100*#
+        .word screen+$100*(#+1)
     .endr
     .byte JVB   
     .word GameDL
@@ -127,6 +128,10 @@ WorldTable
     :WORLD_LENGTH+1 .byte 0 ; ground
 ;---------------------------------------------------
 FirstSTART
+        mva #0 dmactls             ; dark screen
+        mva #$ff portb
+        ; and wait one frame :)
+        waitRTC                   ; or waitRTC ?
     jsr ClearScreen
     jsr GenerateCharsets
     jsr GenerateClouds
@@ -137,6 +142,7 @@ NewGame
     jsr SetStatusToR
     jsr SetStart        
     jsr WorldToScreen
+    mva #>font4 chbas
     jsr FadeColorsIN
     jsr PlayInGameMusic
     jsr GameR
@@ -148,6 +154,7 @@ NewGame
     jsr SetStatusToL
     jsr SetStart        
     jsr WorldToScreen
+    mva #>font4l chbas
     jsr FadeColorsIN
     jsr PlayInGameMusic
     jsr GameL
@@ -398,18 +405,19 @@ SwapLoop
     bpl @-
     rts
 .endp
+;-----------------------------------------------
 .proc ClearScreen
     ldy #44 ; visible screen len
     lda #0
 ClearLoop
-    sta screen+$0700,y
+    ;sta screen+$0700,y
     sta screen+$0600,y
     sta screen+$0500,y
     sta screen+$0400,y
     sta screen+$0300,y
     sta screen+$0200,y
     sta screen+$0100,y
-    sta screen+$0000,y
+    ;sta screen+$0000,y
     dey
     bne ClearLoop
     rts
@@ -1322,6 +1330,7 @@ pressed
 .proc PrepareMusicPlayer
     jsr StopMusic
     VMAIN VBLinterrupt,7       ; jsr SetVBL
+    mva #0 NTSCounter
     rts
 .endp
 .proc PlayInGameMusic
@@ -1346,9 +1355,23 @@ pressed
 .endp
 .proc VBLinterrupt
     lda play_flag
-    beq @+
+    beq NoMusic
+    ; music - PAL/NTSC check
+    lda PAL
+    and #%00001110
+    beq IsPAL
+    ; NTSC ...
+    inc NTSCounter
+    lda NTSCounter
+    cmp #5
+    bne PlayMusic
+    mva #0 NTSCounter
+    beq NoMusic
+PlayMusic
+IsPAL    
     jsr PLAYER
-@   pla
+NoMusic
+    pla
     tay
     pla
     tax

intro/tech_diff.asm

@@ -8,6 +8,7 @@
     .zpvar temp_b   .byte
     .zpvar temp_w2  .word
     .zpvar temp_w3  .word
+    .zpvar NTSCounter    .byte
 ;---------------------------------------------------
     icl '../lib/ATARISYS.ASM'
     icl '../lib/MACRO.ASM'
@@ -22,8 +23,11 @@
         ini $3000
     org $2000
 PLAYER
-    icl '../music/playlzs16.asm'  ; Music Player
+    icl '../music/playlzs16.asm'  ; Music Player, dmsc lzss
 ;---------------------------------------------------
+leet_screen = $a000         ; further than samples
+leet_screen_end = leet_screen + 32*9
+
     ORG $2c00
 start1
     mva #$ff portb
@@ -84,6 +88,18 @@ next_letter
     jmp @-
 
 leet_end
+    ; normal (not leeted) text back
+    mwa #pre_screen temp_w
+    mwa #leet_screen temp_w3
+    ldy #0
+@
+    lda (temp_w),y
+    sta (temp_w3),y
+    inw temp_w
+    inw temp_w3
+    cpw temp_w #pre_screen_end
+    bne @-
+
     jsr StopMusic
     jsr wait_for_releasing_keyz
     rts
@@ -152,6 +168,7 @@ leet_speeks_h
     mwa #MUSIC_DATA_END song_end_ptr
     jsr init_song
     VMAIN VBLinterrupt,7       ; jsr SetVBL
+    mva #0 NTSCounter
     rts
 .endp
 .proc StopMusic
@@ -166,12 +183,23 @@ leet_speeks_h
     rts
 .endp
 .proc VBLinterrupt
+    ; music - PAL/NTSC check
+    lda PAL
+    and #%00001110
+    beq IsPAL
+    ; NTSC ...
+    inc NTSCounter
+    lda NTSCounter
+    cmp #5
+    bne PlayMusic
+    mva #0 NTSCounter
+    beq NoMusic
+PlayMusic
+IsPAL    
     jsr PLAYER
+NoMusic
     jmp XITVBV
-.endp  
+.endp
-leet_screen 
-    .ds 32*9
-leet_screen_end
     .align $100
 MUSIC_DATA
     ins '../music/title.lzss'  ; title music
@@ -181,8 +209,6 @@ MUSIC_DATA_END
 ;---------------------------------------------------
 
     org $3000
-screen
-    ins 'difficulties.bmp',+62
 DL
     :13 .by SKIP8
     .by MODEF+LMS
@@ -289,9 +315,8 @@ exit_tech_diff
     lda #$40
     sta $d40e   ; NMI On 
     cli         ; IRQ on
-    mva #0 DMACTLS
+
-    sta dmactl
+    ;jmp quiet   ; rts  ; POZOR PREMATURE OTTIMIZZAZIONE
-    ;jmp quiet   ; rts
  
 .proc quiet
     ldx #8
@@ -367,4 +392,7 @@ samples_end_h
     .by >sample_end2
     .by >sample_end4
 finito
+    org $b000 ; empty space I hope
+screen
+    ins 'difficulties.bmp',+62
     ini start

music/playlzs16.asm

@@ -45,7 +45,12 @@ bit_data    .ds     1
 ; Song Initialization - this runs in the first tick:
 ;
 .proc init_song
-
+    ;POKEY_INIT
+      mva #0 AUDCTL
+      sta AUDCTL+$10
+      mva #3 SKSTAT
+      sta SKSTAT+$10
+      
     ;clear buffers
     lda #0
     tax
@@ -54,12 +59,6 @@ bit_data    .ds     1
     inx
     bne @-
     
-    ;clear pokey_save
-    ldx #8
-@   sta pokey_save,x
-    dex
-    bpl @-
-    
     mva #1 bit_data
 
     ; here initializes song pointer:
@@ -73,6 +72,7 @@ clear
     ; Read just init value and store into buffer and POKEY
     jsr get_byte
     sta POKEY, x
+    sta pokey_save,x
     sty chn_copy, x
 cbuf
     sta buffers + 255