; Test driver to exercise graphics routines. REL DSK MAINSEG use Locator.Macs use Load.Macs use Mem.Macs use Misc.Macs use Util.Macs use EDS.GSOS.Macs use GTE.Macs mx %00 tiledata EXT ; tileset buffer TileSetPalette EXT ; Keycodes LEFT_ARROW equ $08 RIGHT_ARROW equ $15 UP_ARROW equ $0B DOWN_ARROW equ $0A ; Direct page space MyUserId equ 0 BankLoad equ 2 StartX equ 4 StartY equ 6 TileMapWidth equ 8 TileMapHeight equ 10 ScreenWidth equ 12 ScreenHeight equ 14 MaxGlobalX equ 16 MaxGlobalY equ 18 MaxBG0X equ 20 MaxBG0Y equ 22 frameCount equ 24 OldOneSecondCounter equ 26 appTmp0 equ 28 seg1x equ 30 seg2x equ 32 seg3x equ 34 phk plb sta MyUserId ; GS/OS passes the memory manager user ID for the application into the program tdc sta MyDirectPage ; Keep a copy for the overlay callback _MTStartUp ; GTE requires the miscellaneous toolset to be running lda #ENGINE_MODE_USER_TOOL ; Engine in Fast Mode as a User Tool jsr GTEStartUp ; Load and install the GTE User Tool ; Load a tileset pea 0 pea 256 pea #^tiledata pea #tiledata _GTELoadTileSet pea $0000 pea #^TileSetPalette pea #TileSetPalette _GTESetPalette ; Set up our level data ; jsr BG0SetUp pea 416 pea 30 pea ^App_TileMapBG0 pea App_TileMapBG0+{10*416} _GTESetBG0TileMapInfo jsr SetLimits ; Initialize local variables lda #56 sta StartX lda #0 sta StartY stz frameCount pei StartX pei StartY _GTESetBG0Origin lda #193 ; Tile ID of '0' jsr InitOverlay ; Initialize the status bar pha _GTEGetSeconds pla sta OldOneSecondCounter jsr UdtOverlay ; Set up the per-scanline rendering lda StartX jsr InitOffsets pea #scanlineHorzOffset pea #^BG0Offsets pea #BG0Offsets _GTESetAddress pea $0000 ; one regular render to fill the screen with the tilemap _GTERender ; Set up a very specific test. First, we draw a sprite into the sprite plane, and then ; leave it alone. We are just testing the ability to merge sprite plane data into ; the play field tiles. EvtLoop pha _GTEReadControl pla jsr HandleKeys ; Do the generic key handlers bcs :do_more brl :do_render :do_more cmp #'d' bne :not_d ; lda StartX ; cmp MaxBG0X ; bcc *+5 ; brl :do_render jsr DecRanges jsr SetOffsets ; pei StartX ; pei StartY ; _GTESetBG0Origin brl :do_render :not_d cmp #'a' bne :not_a ; lda StartX ; bne *+5 ; brl :do_render jsr IncRanges jsr SetOffsets ; pei StartX ; pei StartY ; _GTESetBG0Origin brl :do_render :not_a cmp #'s' bne :not_s lda StartY cmp MaxBG0Y bcs :do_render inc StartY pei StartX pei StartY _GTESetBG0Origin bra :do_render :not_s cmp #'w' bne :not_w lda StartY beq :do_render dec StartY pei StartX pei StartY _GTESetBG0Origin bra :do_render :not_w :do_render pea #RENDER_PER_SCANLINE _GTERender ; Update the performance counters inc frameCount pha _GTEGetSeconds pla cmp OldOneSecondCounter beq :noudt sta OldOneSecondCounter jsr UdtOverlay stz frameCount :noudt brl EvtLoop ; Exit code Exit _GTEShutDown Quit _QuitGS qtRec bcs Fatal Fatal brk $00 qtRec adrl $0000 da $00 ; Color palette MyDirectPage ds 2 SetLimits pha ; Allocate space for width (in tiles), height (in tiles), pointer pha pha pha _GTEGetBG0TileMapInfo pla sta TileMapWidth pla sta TileMapHeight pla pla ; discard the pointer pha ; Allocate space for x, y, width, height pha pha pha _GTEGetScreenInfo pla pla ; Discard screen corner pla sta ScreenWidth pla sta ScreenHeight lda TileMapWidth asl asl sta MaxGlobalX sec sbc ScreenWidth sta MaxBG0X lda TileMapHeight asl asl asl sta MaxGlobalY sec sbc ScreenHeight sta MaxBG0Y ; Check if the current StartX and StartY are out of bounds lda StartX cmp MaxBG0X bcc :x_ok lda MaxBG0X :x_ok pha lda StartY cmp MaxBG0Y bcc :y_ok lda MaxBG0Y :y_ok pha _GTESetBG0Origin rts DecRanges lda seg1x bne *+5 lda #164 dec sta seg1x bit #1 bne :out lda seg2x bne *+5 lda #164 dec sta seg2x bit #1 bne :out lda seg3x bne *+5 lda #164 dec sta seg3x :out rts IncRanges lda seg1x inc cmp #164 bcc *+5 lda #0 sta seg1x bit #1 bne :out lda seg2x inc cmp #164 bcc *+5 lda #0 sta seg2x bit #1 bne :out lda seg3x inc cmp #164 bcc *+5 lda #0 sta seg3x :out rts InitOffsets pha ldx #0 ldy #40 jsr _InitRange ldx #40 ldy #80 jsr _InitRange ldx #120 ldy #88 jsr _InitRange pla sta seg1x jsr SetOffset1 lsr sta seg2x jsr SetOffset2 lsr sta seg3x jmp SetOffset3 SetOffsets lda seg1x jsr SetOffset1 lda seg2x jsr SetOffset2 lda seg3x jmp SetOffset3 SetOffset1 ldx #120 ldy #88 jmp _SetRange SetOffset2 ldx #40 ldy #80 jmp _SetRange SetOffset3 ldx #0 ldy #40 jmp _SetRange _SetRange pha txa asl tax :loop2 lda BG0Offsets,x and #$FF00 ora 1,s sta BG0Offsets,x dey beq :done inx inx cpx #416 bcc :loop2 :done pla rts _InitRange txa asl tax tya dec and #$00FF xba :loop1 sta BG0Offsets,x sec sbc #$0100 dey beq :done inx inx cpx #416 bcc :loop1 :done rts BG0Offsets ds 416 PUT ../StartUp.s PUT ../../shell/Overlay.s PUT gen/App.TileMapBG0.s