mirror of
https://github.com/lscharen/iigs-game-engine.git
synced 2024-11-26 07:49:17 +00:00
Complete initialization sequence.
This commit is contained in:
Lucas Scharenbroich
parent
e5da3991cd
commit
1522922abe
@ -87,16 +87,16 @@ Overlay EXT
|
||||
|
||||
; Assumes the direct page is set and EngineMode and UserId has been initialized
|
||||
_CoreStartUp
|
||||
jsr IntStartUp ; Enable certain interrupts
|
||||
jsr IntStartUp ; Enable certain interrupts
|
||||
|
||||
jsr InitMemory ; Allocate and initialize memory for the engine
|
||||
; jsr EngineReset ; All of the resources are allocated, put the engine in a known state
|
||||
jsr InitMemory ; Allocate and initialize memory for the engine
|
||||
jsr EngineReset ; All of the resources are allocated, put the engine in a known state
|
||||
|
||||
; jsr InitGraphics ; Initialize all of the graphics-related data
|
||||
; jsr InitSprites ; Initialize the sprite subsystem
|
||||
; jsr InitTiles ; Initialize the tile subsystem
|
||||
jsr InitGraphics ; Initialize all of the graphics-related data
|
||||
; jsr InitSprites ; Initialize the sprite subsystem
|
||||
jsr InitTiles ; Initialize the tile subsystem
|
||||
|
||||
; jsr InitTimers ; Initialize the timer subsystem
|
||||
jsr InitTimers ; Initialize the timer subsystem
|
||||
rts
|
||||
|
||||
_CoreShutDown
|
||||
@ -243,7 +243,7 @@ EngineReset
|
||||
ldx #BlitBuff
|
||||
lda #^BlitBuff
|
||||
ldy tmp14
|
||||
; jsr BuildBank
|
||||
jsr BuildBank
|
||||
|
||||
lda tmp14
|
||||
clc
|
||||
|
||||
36
src/Defs.s
36
src/Defs.s
@ -199,7 +199,11 @@ VBUFF_SPRITE_STEP equ VBUFF_TILE_ROW_BYTES*3 ; Allocate space fo 16
|
||||
VBUFF_SPRITE_START equ {8*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
|
||||
SPRITE_PLANE_SPAN equ VBUFF_STRIDE_BYTES
|
||||
|
||||
; Tile storage parameters
|
||||
TILE_DATA_SPAN equ 4
|
||||
TILE_STORE_WIDTH equ 41
|
||||
TILE_STORE_HEIGHT equ 26
|
||||
MAX_TILES equ {26*41} ; Number of tiles in the code field (41 columns * 26 rows)
|
||||
@ -218,29 +222,9 @@ TS_VBUFF_ARRAY_ADDR equ TILE_STORE_SIZE*9 ; const value to an aligned 32
|
||||
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
|
||||
|
||||
; 16 consecutive entries to provide directly addressable space for holding the VBUFF address for the
|
||||
; sprites that may be rendered at a given tile. Given a tile store offset, X, the way to address the
|
||||
; address for the Y'th sprite is
|
||||
;
|
||||
; lda TileStore+TS_VBUFF_0+{Y*TILE_STORE_SIZE},x
|
||||
;
|
||||
; Moving to the next tile can be done with a constant.
|
||||
;
|
||||
; lda TileStore+TS_VBUFF_0+{Y*TILE_STORE_SIZE}+{41*row}+{2*col},x
|
||||
|
||||
TS_VBUFF_0 equ TILE_STORE_SIZE*12
|
||||
TS_VBUFF_1 equ TILE_STORE_SIZE*13
|
||||
TS_VBUFF_2 equ TILE_STORE_SIZE*14
|
||||
TS_VBUFF_3 equ TILE_STORE_SIZE*15
|
||||
TS_VBUFF_4 equ TILE_STORE_SIZE*16
|
||||
TS_VBUFF_5 equ TILE_STORE_SIZE*17
|
||||
TS_VBUFF_6 equ TILE_STORE_SIZE*18
|
||||
TS_VBUFF_7 equ TILE_STORE_SIZE*19
|
||||
TS_VBUFF_8 equ TILE_STORE_SIZE*20
|
||||
TS_VBUFF_9 equ TILE_STORE_SIZE*21
|
||||
TS_VBUFF_10 equ TILE_STORE_SIZE*22
|
||||
TS_VBUFF_11 equ TILE_STORE_SIZE*23
|
||||
TS_VBUFF_12 equ TILE_STORE_SIZE*22
|
||||
TS_VBUFF_13 equ TILE_STORE_SIZE*23
|
||||
TS_VBUFF_14 equ TILE_STORE_SIZE*24
|
||||
TS_VBUFF_15 equ TILE_STORE_SIZE*25
|
||||
; Hold values for up to 4 sprites per tile
|
||||
TS_VBUFF_ADDR_0 equ TILE_STORE_SIZE*12
|
||||
TS_VBUFF_ADDR_1 equ TILE_STORE_SIZE*13
|
||||
TS_VBUFF_ADDR_2 equ TILE_STORE_SIZE*14
|
||||
TS_VBUFF_ADDR_3 equ TILE_STORE_SIZE*15
|
||||
TS_VBUFF_ADDR_COUNT equ TILE_STORE_SIZE*16 ; replace usage of TS_VBUFF_ARRAY_ADDR with this later
|
||||
|
||||
@ -669,7 +669,7 @@ dirty_sprite
|
||||
stx spriteIdx+6
|
||||
jmp BlitFourSprites
|
||||
|
||||
DirtyTileProcs dw _TBDirtyTile_00,_TBDirtyTile_0H,_TBDirtyTile_V0,_TBDirtyTile_VH
|
||||
DirtyTileProcs dw _TBDirtyTile_00,_TBDirtyTile_0H,_TBDirtyTile_V0,_TBDirtyTile_VH
|
||||
;DirtyTileSpriteProcs dw _TBDirtySpriteTile_00,_TBDirtySpriteTile_0H,_TBDirtySpriteTile_V0,_TBDirtySpriteTile_VH
|
||||
|
||||
; Blit tiles directly to the screen.
|
||||
@ -699,8 +699,6 @@ _TBDirtyTile_VH
|
||||
--^
|
||||
rts
|
||||
|
||||
TILE_DATA_SPAN equ 4
|
||||
|
||||
; If there are two or more sprites at a tile, we can still be fast, but need to do extra work because
|
||||
; the VBUFF values need to be read from the direct page. Thus, the direct page cannot be mapped onto
|
||||
; the graphics screen. We use the stack instead, but have to do extra work to save and restore the
|
||||
|
||||
15
src/Sprite.s
15
src/Sprite.s
@ -76,12 +76,12 @@ InitSprites
|
||||
; Return:
|
||||
; A = vbuff address to be assigned to Sprite[VBUFF_ADDR]
|
||||
CreateSpriteStamp ENT
|
||||
phb
|
||||
phk
|
||||
plb
|
||||
jsr _CreateSpriteStamp
|
||||
plb
|
||||
rtl
|
||||
phb
|
||||
phk
|
||||
plb
|
||||
jsr _CreateSpriteStamp
|
||||
plb
|
||||
rtl
|
||||
|
||||
_CreateSpriteStamp
|
||||
pha ; Save the descriptor
|
||||
@ -752,9 +752,6 @@ _CacheSpriteBanks
|
||||
|
||||
rts
|
||||
|
||||
; This is 13 blocks wide
|
||||
SPRITE_PLANE_SPAN equ VBUFF_STRIDE_BYTES
|
||||
|
||||
; A = x coordinate
|
||||
; Y = y coordinate
|
||||
;GetSpriteVBuffAddr ENT
|
||||
|
||||
@ -171,7 +171,7 @@ width equ FirstParam+2
|
||||
tay
|
||||
lda width,s
|
||||
tax
|
||||
; jsr _SetScreenMode
|
||||
jsr _SetScreenMode
|
||||
|
||||
_TSExit #0;#4
|
||||
|
||||
@ -192,8 +192,11 @@ output equ FirstParam
|
||||
put Memory.s
|
||||
put Timer.s
|
||||
put Graphics.s
|
||||
put Tiles.s
|
||||
put blitter/BG0.s
|
||||
put blitter/BG1.s
|
||||
put blitter/Template.s
|
||||
put blitter/TemplateUtils.s
|
||||
put blitter/Tables.s
|
||||
put blitter/Blitter.s
|
||||
; put blitter/Tiles.s
|
||||
|
||||
Loading…
Reference in New Issue
Block a user