Apple-2gs-SW/iigs-game-engine
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Clean up constants and fix bad addressing mode

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This commit is contained in:
Lucas Scharenbroich 2022-06-02 13:06:26 -05:00
parent 4f557230c6
commit e6251f05a3
4 changed files with 13 additions and 13 deletions
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8
src/Defs.s
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@ -95,9 +95,9 @@ ToolNum equ 114 ; Tool number assigned to us
LastKey equ 116
LastTick equ 118
ForceSpriteFlag equ 120
SpriteRemovedFlag equ 122 ; Indicate if any sprites were removed this frame
;VBuffArrayPtr equ 122
SpriteRemovedFlag equ 126 ; Indicate if any sprites were removed this frame
activeSpriteList equ 128 ; 32 bytes for the active sprite list (can persist across frames)
; tiletmp equ 178 ; 16 bytes of temp storage for the tile renderers
@ -206,8 +206,8 @@ SPRITE_HFLIP equ $0200
VBUFF_STRIDE_BYTES equ {12*4} ; Each line has 4 slots of 16 pixels + 8 buffer pixels
VBUFF_TILE_ROW_BYTES equ {8*VBUFF_STRIDE_BYTES} ; Each row is comprised of 8 lines
VBUFF_TILE_COL_BYTES equ 4
VBUFF_SPRITE_STEP equ {VBUFF_TILE_ROW_BYTES*3} ; Allocate space fo 16 rows + 8 rows of buffer
VBUFF_SPRITE_START equ {8*VBUFF_TILE_ROW_BYTES}+4 ; Start at an offset so $0000 can be used as an empty value
VBUFF_SPRITE_STEP equ {VBUFF_TILE_ROW_BYTES*3} ; Allocate space for 16 rows + 8 rows of buffer
VBUFF_SPRITE_START equ {VBUFF_TILE_ROW_BYTES+4} ; Start at an offset so $0000 can be used as an empty value
VBUFF_SLOT_COUNT equ 48 ; Have space for this many stamps
; This is 13 blocks wide

6
src/Sprite.s
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@ -42,8 +42,8 @@ InitSprites
bcc :loop4
; Precalculate some bank values
jsr _CacheSpriteBanks
rts
jsr _CacheSpriteBanks
rts
; _RenderSprites
;
@ -585,7 +585,7 @@ _PrecalcAllSpriteInfo
lda _Sprites+VBUFF_ADDR,x
clc
adc _stamp_step,y
sta _Sprites+SPRITE_DISP,y
sta _Sprites+SPRITE_DISP,x
; Set the sprite's width and height
lda #4

10
src/Sprite2.s
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@ -171,9 +171,9 @@ _CalcDirtySprite
mdsOut rts
; NOTE: The VBuffArrayAddr lookup table is set up so that each sprite's vbuff address is stored in a
; parallel structure to the Tile Store. This allows up to use the same TileStoreLookup offset
; to index into the array of 16 sprite VBUFF addresses that are bound to a given tile
; NOTE: The VBuffArray table is set up so that each sprite's vbuff address is stored in a
; parallel structure to the Tile Store. This allows up to use the same TileStoreLookup
; offset to index into the array of 16 sprite VBUFF addresses that are bound to a given tile
_MarkDirtySpriteTiles
lda _SpriteBits,y
sta SpriteBit
@ -224,8 +224,8 @@ COL equ 2 ; This many bytes for each e
:mark1x1
ldx _Sprites+VBUFF_ARRAY_ADDR,y ; get the address of this sprite's vbuff values
lda _Sprites+TS_VBUFF_BASE,y ; get the starting vbuff address
sta: {0*ROW}+{0*COL},x ; Put in the vbuff address
lda _Sprites+TS_VBUFF_BASE,y ; get the starting vbuff address
sta: {0*ROW}+{0*COL},x ; Put in the vbuff address
ldx _Sprites+TS_LOOKUP_INDEX,y
TSSetSprite 0*{TS_LOOKUP_SPAN*2}

2
src/static/TileStore.s
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@ -412,7 +412,7 @@ ScreenModeHeight ENT
; we allocate 8 sprites in the first row and 8 more sprites in the 4th row. So we need to allocate a
; total of 6 rows of TileStore space
;
; It is *critical* that this array be placed in a memory location that is greated than the largest
; It is *critical* that this array be placed in a memory location that is greater than the largest
; TileStore offset.
VBuffArray ENT
ds 6*{TILE_STORE_WIDTH*2}