mirror of
https://github.com/lscharen/iigs-game-engine.git
synced 2025-03-11 23:34:25 +00:00
Stub in a lot of the remaining functions
This commit is contained in:
Lucas Scharenbroich
parent
bcdc543241
commit
78ee683ba8
@ -59,4 +59,78 @@ _GTEGetSeconds MAC
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<<<
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_GTECopyTileToDynamic MAC
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UserTool $1500+GTEToolNum
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<<<
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<<<
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_GTESetPalette MAC
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UserTool $1600+GTEToolNum
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<<<
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_GTECopyPicToBG1 MAC
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UserTool $1700+GTEToolNum
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<<<
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_GTEBindSCBArray MAC
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UserTool $1800+GTEToolNum
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<<<
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_GTEGetBG0TileMapInfo MAC
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UserTool $1900+GTEToolNum
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<<<
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_GTEGetScreenInfo MAC
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UserTool $1A00+GTEToolNum
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<<<
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_GTESetBG1Origin MAC
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UserTool $1B00+GTEToolNum
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<<<
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_GTEGetTileAt MAC
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UserTool $1C00+GTEToolNum
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<<<
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_GTESetBG0TileMapInfo MAC
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UserTool $1D00+GTEToolNum
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<<<
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_GTESetBG1TileMapInfo MAC
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UserTool $1E00+GTEToolNum
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<<<
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; EngineMode definitions
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; Script definition
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YIELD equ $8000
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JUMP equ $4000
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SET_PALETTE_ENTRY equ $0002
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SWAP_PALETTE_ENTRY equ $0004
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SET_DYN_TILE equ $0006
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CALLBACK equ $0010
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; ReadControl return value bits
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PAD_BUTTON_B equ $01
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PAD_BUTTON_A equ $02
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PAD_KEY_DOWN equ $04
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ENGINE_MODE_TWO_LAYER equ $0001
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ENGINE_MODE_DYN_TILES equ $0002
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ENGINE_MODE_BNK0_BUFF equ $0004
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; Tile constants
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; TILE_RESERVED_BIT equ $8000
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TILE_PRIORITY_BIT equ $4000 ; Put tile on top of sprite
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TILE_FRINGE_BIT equ $2000 ; Unused
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TILE_SOLID_BIT equ $1000 ; Hint bit used in TWO_LAYER_MODE to optimize rendering
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TILE_DYN_BIT equ $0800 ; Is this a Dynamic Tile?
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TILE_VFLIP_BIT equ $0400
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TILE_HFLIP_BIT equ $0200
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TILE_ID_MASK equ $01FF
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TILE_CTRL_MASK equ $FE00
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; Sprite constants
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SPRITE_HIDE equ $2000
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SPRITE_16X16 equ $1800
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SPRITE_16X8 equ $1000
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SPRITE_8X16 equ $0800
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SPRITE_8X8 equ $0000
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SPRITE_VFLIP equ $0400
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SPRITE_HFLIP equ $0200
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; Stamp storage parameters
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VBUFF_STRIDE_BYTES equ {12*4} ; Each line has 4 slots of 16 pixels + 8 buffer pixels
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VBUFF_TILE_ROW_BYTES equ {8*VBUFF_STRIDE_BYTES} ; Each row is comprised of 8 lines
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VBUFF_TILE_COL_BYTES equ 4
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VBUFF_SPRITE_STEP equ {VBUFF_TILE_ROW_BYTES*3} ; Allocate space for 16 rows + 8 rows of buffer
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VBUFF_SPRITE_START equ {VBUFF_TILE_ROW_BYTES+4} ; Start at an offset so $0000 can be used as an empty value
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VBUFF_SLOT_COUNT equ 48 ; Have space for this many stamps
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@ -25,7 +25,7 @@ Render EXT
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; SCB/Palette binding (high bit of array point indicates whether to bind to BG0 Y position (0)
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; or BG1 Y position (1).
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SetSCBArray EXT
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; SetSCBArray EXT
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BltSCB EXT
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; Rotation
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@ -20,6 +20,8 @@
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; It's important to do _ApplyBG0YPos first because it calculates the value of StartY % 208 which is
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; used in all of the other loops
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_Render
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jsr _DoTimers ; Run any pending timer tasks
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stz SpriteRemovedFlag ; If we remove a sprite, then we need to flag a rebuild for the next frame
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jsr _ApplyBG0YPos ; Set stack addresses for the virtual lines to the physical screen
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43
src/Timer.s
43
src/Timer.s
@ -107,33 +107,48 @@ RemoveTimer ENT
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rtl
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; Execute the timer functions
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DoTimers ENT
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phb
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jsr _SetDataBank
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;DoTimers ENT
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; phb
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; jsr _SetDataBank
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;
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; jsr _GetVBLTicks
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;
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; cmp LastTick ; Throttle to 60 fps
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; beq :exit
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; tax ; Calculate the increment
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; sec
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; sbc LastTick
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; stx LastTick
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; We don't want times to fire excessively. If the timer hasn't been evaluated for over
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; one second, then just skip processing and wait for the next call.
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; cmp #60
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; bcs :exit
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; jsr _DoTimers
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;:exit plb
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; rtl
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; Countdown the timers
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_DoTimers
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jsr _GetVBLTicks
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cmp LastTick ; Throttle to 60 fps
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beq :exit
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tax ; Calculate the increment
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sec
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sbc LastTick
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stx LastTick
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; We don't want times to fire excessively. If the timer has nt been evaluated for over
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; We don't want times to fire excessively. If the timer hasn't been evaluated for over
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; one second, then just skip processing and wait for the next call.
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cmp #60
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bcs :exit
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bcc :do_timer
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:exit rts
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jsr _DoTimers
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:exit plb
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rtl
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; Countdown the timers
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;
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; A = number of elapsed ticks
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_DoTimers
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:do_timer
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pha
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ldx #0
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:loop
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177
src/Tool.s
177
src/Tool.s
@ -60,6 +60,17 @@ _CallTable
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adrl _TSGetSeconds-1
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adrl _TSCopyTileToDynamic-1
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adrl _TSSetPalette-1
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adrl _TSCopyPicToBG1-1
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adrl _TSBindSCBArray-1
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adrl _TSGetBG0TileMapInfo-1
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adrl _TSGetScreenInfo-1
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adrl _TSSetBG1Origin-1
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adrl _TSGetTileAt-1
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adrl _TSSetBG0TileMapInfo-1
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adrl _TSSetBG1TileMapInfo-1
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_CTEnd
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_GTEAddSprite MAC
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UserTool $1000+GTEToolNum
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@ -371,6 +382,171 @@ _TSCopyTileToDynamic
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:notEnabled
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_TSExit #0;#4
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_TSSetPalette
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:ptr equ FirstParam+0
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:palNum equ FirstParam+4
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_TSEntry
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phb
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lda :ptr+2
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pha
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plb
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plb
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lda :ptr
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tax
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lda :palNum
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jsr _SetPalette
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plb
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_TSExit #0;#6
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_TSCopyPicToBG1
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:ptr equ FirstParam+0
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_TSEntry
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lda BG1DataBank
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tay
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lda :ptr+2,s
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tax
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lda :ptr,s
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jsr _CopyPicToBG1
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_TSExit #0;#4
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_TSBindSCBArray
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:ptr equ FirstParam+0
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_TSEntry
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lda :ptr,s
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tax
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lda :ptr+2,s
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jsr _BindSCBArray
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_TSExit #0;#4
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_TSGetBG0TileMapInfo
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:ptr equ FirstParam+4
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:height equ FirstParam+2
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:width equ FirstParam+0
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_TSEntry
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lda TileMapWidth
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sta :width,s
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lda TileMapHeight
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sta :height,s
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lda TileMapPtr
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sta :ptr,s
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lda TileMapPtr+2
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sta :ptr+2,s
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_TSExit #0;#0
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_TSGetScreenInfo
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:height equ FirstParam+4
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:width equ FirstParam+4
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:y equ FirstParam+2
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:x equ FirstParam+0
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_TSEntry
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lda ScreenX0
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sta :x,s
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lda ScreenY0
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sta :y,s
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sta :width,s
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lda ScreenWidth
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sta :width,s
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lda ScreenHeight
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sta :height,s
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_TSExit #0;#0
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; SetBG1Origin(x, y)
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_TSSetBG1Origin
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:y equ FirstParam
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:x equ FirstParam+2
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_TSEntry
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lda :x,s
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jsr _SetBG1XPos
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lda :y,s
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jsr _SetBG1YPos
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_TSExit #0;#4
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; GetTileAt(x, y)
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_TSGetTileAt
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:y equ FirstParam
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:x equ FirstParam+2
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:output equ FirstParam+4
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_TSEntry
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; Convert the x, y coordinated to tile store block coordinates
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lda :x,s
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tax
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lda :y,s
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tay
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jsr _GetTileAt
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bcc :ok
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lda #0
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bra :out
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; Load the tile at that tile store location
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:ok
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jsr _GetTileStoreOffset0 ; Get the address of the X,Y tile position
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tax
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lda TileStore+TS_TILE_ID,x
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:out
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sta :output,s
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_TSExit #0;#4
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; SetBG0TileMapInfo(width, height, ptr)
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_TSSetBG0TileMapInfo
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:ptr equ FirstParam+0
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:height equ FirstParam+4
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:width equ FirstParam+6
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_TSEntry
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lda :width,s
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sta TileMapWidth
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lda :height,s
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sta TileMapHeight
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lda :ptr,s
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sta TileMapPtr
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lda :ptr+2,s
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sta TileMapPtr+2
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_TSExit #0;#8
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; SetBG1TileMapInfo(width, height, ptr)
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_TSSetBG1TileMapInfo
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:ptr equ FirstParam+0
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:height equ FirstParam+4
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:width equ FirstParam+6
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_TSEntry
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lda :width,s
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sta BG1TileMapWidth
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lda :height,s
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sta BG1TileMapHeight
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lda :ptr,s
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sta BG1TileMapPtr
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lda :ptr+2,s
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sta TileMapPtr+2
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_TSExit #0;#8
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; Insert the GTE code
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put Math.s
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@ -391,6 +567,7 @@ _TSCopyTileToDynamic
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put render/Sprite1.s
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put render/Sprite2.s
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put tiles/DirtyTileQueue.s
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put blitter/SCB.s
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put blitter/Horz.s
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put blitter/Vert.s
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put blitter/BG0.s
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@ -76,11 +76,11 @@ _BltSCB
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; Quick helper to set the pointer (X = low word, A = high work)
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SetSCBArray ENT
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jsr _SetSCBArray
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rtl
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;SetSCBArray ENT
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; jsr _SetSCBArray
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; rtl
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_SetSCBArray
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_BindSCBArray
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stx SCBArrayPtr
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sta SCBArrayPtr+2
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rts
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