mirror of
https://github.com/lscharen/iigs-game-engine.git
synced 2024-11-29 11:50:25 +00:00
Fix initialization bug in TileStore
This commit is contained in:
Lucas Scharenbroich
parent
b022162036
commit
a938639c1b
@ -39,6 +39,19 @@ ScreenY equ 2
|
||||
pea #TSZelda
|
||||
_GTELoadTileSet
|
||||
|
||||
; Set the palette
|
||||
ldx #11*2
|
||||
:ploop
|
||||
lda palette,x
|
||||
stal $E19E00,x
|
||||
dex
|
||||
dex
|
||||
bpl :ploop
|
||||
bra sprt
|
||||
|
||||
palette dw $0000,$08C1,$0C41,$0F93,$0777,$0FDA,$00A0,$0000,$0D20,$0FFF,$023E
|
||||
sprt
|
||||
|
||||
; Create stamps for the sprites we are going to use
|
||||
HERO_SPRITE_1 equ SPRITE_16X16+1
|
||||
HERO_SLOT equ 0
|
||||
@ -49,8 +62,8 @@ HERO_SLOT equ 0
|
||||
|
||||
; Create sprites
|
||||
pea HERO_SPRITE_1 ; sprite id
|
||||
pea #0 ; screen x-position (<256)
|
||||
pea #0 ; screen y-position (<256)
|
||||
pea #11 ; screen x-position (<256)
|
||||
pea #23 ; screen y-position (<256)
|
||||
pea HERO_SLOT ; sprite slot (0 - 15)
|
||||
_GTEAddSprite
|
||||
|
||||
@ -59,44 +72,62 @@ HERO_SLOT equ 0
|
||||
pea VBUFF_SPRITE_START ; and use this stamp
|
||||
_GTEUpdateSprite
|
||||
|
||||
; Manually fill in the 41x26 tiles of the TileStore with a test pattern.
|
||||
; Manually fill in the 41x26 tiles of the TileStore with a test pattern of trees
|
||||
;
|
||||
; Tile 65 Tile 66
|
||||
; Tile 97 Tile 98
|
||||
|
||||
ldx #0
|
||||
ldy #0
|
||||
stz 0 ; X
|
||||
stz 2 ; Y
|
||||
|
||||
:loop
|
||||
phx
|
||||
phy
|
||||
:tloop
|
||||
ldx 0
|
||||
ldy 2
|
||||
|
||||
phx
|
||||
phy
|
||||
lda 0
|
||||
clc
|
||||
adc #64
|
||||
pha
|
||||
pea #65
|
||||
|
||||
inx
|
||||
phx
|
||||
phy
|
||||
pea #66
|
||||
|
||||
iny
|
||||
phx
|
||||
phy
|
||||
pea #98
|
||||
|
||||
dex
|
||||
phx
|
||||
phy
|
||||
pea #97
|
||||
|
||||
_GTESetTile
|
||||
_GTESetTile
|
||||
_GTESetTile
|
||||
_GTESetTile
|
||||
|
||||
lda 0
|
||||
inc
|
||||
and #$001F
|
||||
inc
|
||||
sta 0
|
||||
cmp #40
|
||||
bcc :tloop
|
||||
|
||||
ply
|
||||
plx
|
||||
inx
|
||||
cpx #41
|
||||
bcc :loop
|
||||
stz 0
|
||||
lda 2
|
||||
inc
|
||||
inc
|
||||
sta 2
|
||||
cmp #25
|
||||
bcc :tloop
|
||||
|
||||
ldx #0
|
||||
iny
|
||||
cpy #26
|
||||
bcc :loop
|
||||
; Set the screen coordinates
|
||||
|
||||
; Set the origin of the screen
|
||||
:skip
|
||||
|
||||
stz ScreenX
|
||||
stz ScreenY
|
||||
lda #8
|
||||
sta ScreenX
|
||||
sta ScreenY
|
||||
|
||||
; Very simple actions
|
||||
:evt_loop
|
||||
@ -138,6 +169,7 @@ HERO_SLOT equ 0
|
||||
; _GTEUpdateSprite
|
||||
|
||||
_GTERender
|
||||
brl :evt_loop
|
||||
|
||||
; Debug stuff
|
||||
ldx #$100
|
||||
|
||||
@ -174,7 +174,7 @@ _DoPhase1
|
||||
bit #SPRITE_STATUS_MOVED
|
||||
beq :no_move
|
||||
|
||||
; jsr _ClearSpriteFromTileStore
|
||||
jsr _ClearSpriteFromTileStore
|
||||
ldy tmpY
|
||||
|
||||
; Anything else (MOVED, UPDATED, ADDED) will need to have the VBUFF information updated and the
|
||||
|
||||
31
src/Tiles.s
31
src/Tiles.s
@ -80,20 +80,7 @@ InitTiles
|
||||
:row equ tmp1
|
||||
:vbuff equ tmp2
|
||||
|
||||
; Fill in the TileStoreYTable. This is just a table of offsets into the Tile Store for each row. There
|
||||
; are 26 rows with a stride of 41
|
||||
ldy #0
|
||||
lda #0
|
||||
:yloop
|
||||
sta TileStoreYTable,y
|
||||
clc
|
||||
adc #41*2
|
||||
iny
|
||||
iny
|
||||
cpy #26*2
|
||||
bcc :yloop
|
||||
|
||||
; Next, initialize the Tile Store itself
|
||||
; Initialize the Tile Store
|
||||
|
||||
ldx #TILE_STORE_SIZE-2
|
||||
lda #25
|
||||
@ -105,7 +92,7 @@ InitTiles
|
||||
|
||||
:loop
|
||||
|
||||
; The first set of values in the Tile Store are changed during each frame based on the actions
|
||||
; The first set of values in the Tile Store that are changed during each frame based on the actions
|
||||
; that are happening
|
||||
|
||||
lda #0
|
||||
@ -114,12 +101,26 @@ InitTiles
|
||||
sta TileStore+TS_SPRITE_FLAG,x ; no sprites are set at the beginning
|
||||
sta TileStore+TS_DIRTY,x ; none of the tiles are dirty
|
||||
|
||||
; Set the default tile rendering functions
|
||||
|
||||
lda EngineMode
|
||||
bit #ENGINE_MODE_DYN_TILES+ENGINE_MODE_TWO_LAYER
|
||||
beq :fast
|
||||
; ldal TileProcs
|
||||
; sta TileStore+TS_BASE_TILE_DISP,x
|
||||
bra :out
|
||||
:fast
|
||||
ldal FastTileProcs
|
||||
sta TileStore+TS_BASE_TILE_DISP,x
|
||||
:out
|
||||
|
||||
; lda DirtyTileProcs ; Fill in with the first dispatch address
|
||||
; stal TileStore+TS_DIRTY_TILE_DISP,x
|
||||
;
|
||||
; lda TileProcs ; Same for non-dirty, non-sprite base case
|
||||
; stal TileStore+TS_BASE_TILE_DISP,x
|
||||
|
||||
|
||||
; The next set of values are constants that are simply used as cached parameters to avoid needing to
|
||||
; calculate any of these values during tile rendering
|
||||
|
||||
|
||||
@ -14,6 +14,8 @@ TS_CODE_ADDR_HIGH equ TILE_STORE_SIZE*5
|
||||
TS_WORD_OFFSET equ TILE_STORE_SIZE*6 ; const value, word offset value for this tile if LDA (dp),y instructions re used
|
||||
TS_BASE_ADDR equ TILE_STORE_SIZE*7 ; const value, because there are two rows of tiles per bank, this is set to $0000 ot $8000.
|
||||
TS_SCREEN_ADDR equ TILE_STORE_SIZE*8 ; cached value of on-screen location of tile. Used for DirtyRender.
|
||||
|
||||
; TODO: Move these arrays into the K bank to support direct dispatch via jmp (abs,x)
|
||||
TS_BASE_TILE_COPY equ TILE_STORE_SIZE*9 ; derived from TS_TILE_ID to optimize tile copy to support sprite rendering
|
||||
TS_BASE_TILE_DISP equ TILE_STORE_SIZE*10 ; derived from TS_TILE_ID to optimize base (non-sprite) tile dispatch in the Render function
|
||||
TS_DIRTY_TILE_DISP equ TILE_STORE_SIZE*11 ; derived from TS_TILE_ID to optimize dirty tile dispatch in the Render function
|
||||
@ -43,9 +45,9 @@ SPRITE_STATUS equ {MAX_SPRITES*0}
|
||||
SPRITE_ID equ {MAX_SPRITES*2}
|
||||
SPRITE_X equ {MAX_SPRITES*4}
|
||||
SPRITE_Y equ {MAX_SPRITES*6}
|
||||
VBUFF_ADDR equ {MAX_SPRITES*8} ; Base address of the sprite's stamp in the data/mask banks
|
||||
|
||||
; These values are cached / calculated during the rendering process
|
||||
VBUFF_ADDR equ {MAX_SPRITES*8} ; Base address of the sprite's stamp in the data/mask banks
|
||||
TS_LOOKUP_INDEX equ {MAX_SPRITES*10} ; The index from the TileStoreLookup table that corresponds to the top-left corner of the sprite
|
||||
TS_COVERAGE_SIZE equ {MAX_SPRITES*12} ; Representation of how many TileStore tiles (NxM) are covered by this sprite
|
||||
OLD_TS_LOOKUP_INDEX equ {MAX_SPRITES*14} ; Copy of the values to support diffing
|
||||
|
||||
Loading…
Reference in New Issue
Block a user