438 lines
10 KiB
ArmAsm
438 lines
10 KiB
ArmAsm
REL
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DSK MAINSEG
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use Locator.Macs
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use Load.Macs
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use Mem.Macs
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use Misc.Macs
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use Util.Macs
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use EDS.GSOS.Macs
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use GTE.Macs
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mx %00
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TSZelda EXT ; tileset buffer
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MAX_SPRITES equ 16
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ScreenX equ 0
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ScreenY equ 2
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Tmp0 equ 4
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Tmp1 equ 6
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KeyState equ 8
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Selected equ 10
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Flips equ 12
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DTile equ 14
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Tmp2 equ 16
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ScreenWidth equ 18
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ScreenHeight equ 20
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; Typical init
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phk
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plb
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sta MyUserId ; GS/OS passes the memory manager user ID for the application into the program
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_MTStartUp ; GTE requires the miscellaneous toolset to be running
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lda #ENGINE_MODE_USER_TOOL+ENGINE_MODE_TWO_LAYER
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jsr GTEStartUp ; Load and install the GTE User Tool
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; Initialize the graphics screen to a 256x160 playfield
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pea #160
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pea #200
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_GTESetScreenMode
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; Load a tileset
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pea 0
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pea 120
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pea #^TSZelda
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pea #TSZelda
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_GTELoadTileSet
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; Set the palette
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pea $0000
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pea #^palette
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pea #palette
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_GTESetPalette
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jsr SetLimits
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; Create stamps for the sprites we are going to use
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HERO_SPRITE equ SPRITE_16X16+1
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pea HERO_SPRITE ; sprint id
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pea VBUFF_SPRITE_START ; vbuff address
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_GTECreateSpriteStamp
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; Create sprites
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stz Tmp0
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stz Tmp1 ; Slot number
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ldx Tmp0
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:sloop
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pei Tmp1 ; Put the sprite in this slot
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pea SPRITE_16X16 ; with these flags (h/v flip)
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pea VBUFF_SPRITE_START
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lda PlayerX,x
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pha
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lda PlayerY,x
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pha
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_GTEAddSprite
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inc Tmp1
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ldx Tmp0
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inx
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inx
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stx Tmp0
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cpx #MAX_SPRITES*2
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bcc :sloop
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; Manually fill in the 41x26 tiles of the TileStore with a test pattern of trees
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jsr _fillTileStore
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; Initialize the frame counter
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stz FrameCount
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; Set the screen coordinates
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lda #0
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sta ScreenX
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lda #0
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sta ScreenY
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stz Selected
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stz Flips
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; Very simple actions
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:evt_loop
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pha ; space for result, with pattern
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_GTEReadControl
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pla
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jsr HandleKeys ; Do the generic key handlers
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bcs :do_more
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brl :do_render
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:do_more
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and #$007F
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cmp #'a'
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bne :skip_a
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inc ScreenX
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pei ScreenX
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pei ScreenY
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_GTESetBG0Origin
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brl :do_render
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:skip_a
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cmp #'z'
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bne :skip_z
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inc PlayerX
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pea 0
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lda PlayerX
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pha
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lda PlayerY
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pha
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_GTEMoveSprite
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:skip_z
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:do_render
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jsr _moveSprites
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pea #RENDER_WITH_SHADOWING
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_GTERender
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; Update the performance counters
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inc FrameCount
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pha
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_GTEGetSeconds
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pla
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cmp LastSecond
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beq :no_fps
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sta LastSecond
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; lda FrameCount
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; ldx #0
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; ldy #$FFFF
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; jsr DrawWord
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stz FrameCount
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:no_fps
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brl :evt_loop
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; Shut down everything
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Exit
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_GTEShutDown
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_QuitGS qtRec
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qtRec adrl $0000
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da $00
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; Array of sprite positions and velocities
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PlayerX dw 8,14,29,34,45,67,81,83,92,101,39,22,7,74,111,9
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PlayerY dw 72,24,13,56,35,72,23,8,93,123,134,87,143,14,46,65
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PlayerU dw 1,2,3,4,1,2,3,4,1,2,3,4,1,2,3,4
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PlayerV dw 1,1,1,1,2,2,2,4,3,3,3,3,4,4,4,4
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_moveSprites
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stz Tmp0
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:loop
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ldx Tmp0
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lda PlayerX,x
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clc
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adc PlayerU,x
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sta PlayerX,x
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bpl :chk_xpos
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eor #$FFFF
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inc
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sta PlayerX,x
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bra :rev_x
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:chk_xpos
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cmp ScreenWidth
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bcc :ok_x
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sbc ScreenWidth
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eor #$FFFF
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inc
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clc
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adc ScreenWidth
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sta PlayerX,x
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:rev_x
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lda PlayerU,x ; reverse the velocity
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eor #$FFFF
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inc
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sta PlayerU,x
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:ok_x
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lda PlayerY,x
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clc
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adc PlayerV,x
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sta PlayerY,x
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bpl :chk_ypos
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eor #$FFFF
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inc
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sta PlayerY,x
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bra :rev_y
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:chk_ypos
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cmp ScreenHeight
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bcc :ok_y
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sbc ScreenHeight
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eor #$FFFF
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inc
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clc
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adc ScreenHeight
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sta PlayerY,x
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:rev_y
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lda PlayerV,x ; reverse the velocity
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eor #$FFFF
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inc
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sta PlayerV,x
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:ok_y
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txa
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lsr
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pha
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lda PlayerX,x
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pha
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lda PlayerY,x
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pha
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_GTEMoveSprite
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lda Tmp0
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inc
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inc
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sta Tmp0
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cmp #2*MAX_SPRITES
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bcc :loop
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rts
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; Called by StartUp function callbacks when the screen size changes
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SetLimits
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pha ; Allocate space for x, y, width, height
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pha
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pha
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pha
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_GTEGetScreenInfo
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pla
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pla ; Discard screen corner
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pla
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sec
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sbc #8
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sta ScreenWidth ; Pre-adjust to keep sprites on the visible playfield (for compiled sprites)
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pla
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sec
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sbc #16
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sta ScreenHeight
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rts
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_fillTileStore
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sta Tmp2
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stz Tmp0
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:oloop
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stz Tmp1
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:iloop
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ldx Tmp1
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ldy Tmp0
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jsr _drawTree
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lda Tmp1
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inc
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inc
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sta Tmp1
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cmp #40
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bcc :iloop
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lda Tmp0
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inc
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inc
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sta Tmp0
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cmp #25
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bcc :oloop
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rts
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; Tile 65 Tile 66
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; Tile 97 Tile 98
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_drawTreeFront
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phx
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phy
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pea #65+TILE_PRIORITY_BIT
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inx
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phx
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phy
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pea #66+TILE_PRIORITY_BIT
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iny
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phx
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phy
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pea #98+TILE_PRIORITY_BIT
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dex
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phx
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phy
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pea #97+TILE_PRIORITY_BIT
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_GTESetTile
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_GTESetTile
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_GTESetTile
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_GTESetTile
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rts
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_drawTree
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phx
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phy
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pea #65
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inx
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phx
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phy
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pea #66
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iny
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phx
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phy
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pea #98
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dex
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phx
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phy
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pea #97
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_GTESetTile
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_GTESetTile
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_GTESetTile
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_GTESetTile
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rts
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_drawTreeH
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phx
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phy
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pea #66+TILE_HFLIP_BIT
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inx
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phx
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phy
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pea #65+TILE_HFLIP_BIT
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iny
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phx
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phy
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pea #97+TILE_HFLIP_BIT
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dex
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phx
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phy
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pea #98+TILE_HFLIP_BIT
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_GTESetTile
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_GTESetTile
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_GTESetTile
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_GTESetTile
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rts
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_drawTreeV
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phx
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phy
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pea #97+TILE_VFLIP_BIT
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inx
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phx
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phy
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pea #98+TILE_VFLIP_BIT
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iny
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phx
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phy
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pea #66+TILE_VFLIP_BIT
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dex
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phx
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phy
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pea #65+TILE_VFLIP_BIT
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_GTESetTile
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_GTESetTile
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_GTESetTile
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_GTESetTile
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rts
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_drawTreeHV
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phx
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phy
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pea #98+TILE_VFLIP_BIT+TILE_HFLIP_BIT
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inx
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phx
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phy
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pea #97+TILE_VFLIP_BIT+TILE_HFLIP_BIT
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iny
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phx
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phy
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pea #65+TILE_VFLIP_BIT+TILE_HFLIP_BIT
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dex
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phx
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phy
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pea #66+TILE_VFLIP_BIT+TILE_HFLIP_BIT
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_GTESetTile
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_GTESetTile
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_GTESetTile
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_GTESetTile
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rts
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MyUserId ds 2
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FrameCount ds 2
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LastSecond dw 0
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palette dw $0000,$08C1,$0C41,$0F93,$0777,$0FDA,$00A0,$0000,$0D20,$0FFF,$023E,$0,$0,$0,$0,$0
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PUT ../kfest-2022/StartUp.s
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PUT App.Msg.s
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PUT font.s
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