mirror of https://github.com/jeremysrand/BuGS.git
More general cleanup and get rid of more magic numbers.
This commit is contained in:
Jeremy Rand
parent
c614164c14
commit
44cb944f22
12
BuGS/game.s
12
BuGS/game.s
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@ -56,9 +56,9 @@ dirtyTileLoop anop
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phy
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ldx dirtyGameTiles,y
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stz tiles,x
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ldy tiles+2,x
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lda tiles+4,x
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stz tiles+TILE_DIRTY_OFFSET,x
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ldy tiles+TILE_SCREEN_OFFSET_OFFSET,x
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lda tiles+TILE_TYPE_OFFSET,x
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jsl drawTile
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@ -78,9 +78,9 @@ dirtyTileLoop2 anop
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phy
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ldx dirtyNonGameTiles,y
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stz tiles,x
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ldy tiles+2,x
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lda tiles+4,x
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stz tiles+TILE_DIRTY_OFFSET,x
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ldy tiles+TILE_SCREEN_OFFSET_OFFSET,x
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lda tiles+TILE_TYPE_OFFSET,x
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jsl drawTile
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@ -18,8 +18,8 @@ FLEA_STATE_FALLING equ 1
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FLEA_STATE_EXPLODING equ 2
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FLEA_SCREEN_SPEED equ 2*SCREEN_BYTES_PER_ROW
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FLEA_SLOW_UPDATES_PER_TILE equ 3
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FLEA_FAST_UPDATES_PER_TILE equ 1
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FLEA_SLOW_UPDATES_PER_TILE equ TILE_PIXEL_HEIGHT/2-1
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FLEA_FAST_UPDATES_PER_TILE equ TILE_PIXEL_HEIGHT/4-1
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drawFlea entry
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@ -33,10 +33,10 @@ drawFlea entry
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ldy numDirtyGameTiles
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ldx fleaTileOffsets
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lda tiles,x
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lda tiles+TILE_DIRTY_OFFSET,x
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bne drawFlea_skipTile1
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lda #TILE_STATE_DIRTY
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sta tiles,x
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sta tiles+TILE_DIRTY_OFFSET,x
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txa
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sta dirtyGameTiles,y
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iny
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@ -45,10 +45,10 @@ drawFlea entry
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drawFlea_skipTile1 anop
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ldx fleaTileOffsets+2
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lda tiles,x
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lda tiles+TILE_DIRTY_OFFSET,x
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bne drawFlea_skipTile2
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lda #TILE_STATE_DIRTY
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sta tiles,x
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sta tiles+TILE_DIRTY_OFFSET,x
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txa
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sta dirtyGameTiles,y
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iny
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@ -57,10 +57,10 @@ drawFlea_skipTile1 anop
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drawFlea_skipTile2 anop
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ldx fleaTileOffsets+4
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lda tiles,x
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lda tiles+TILE_DIRTY_OFFSET,x
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bne drawFlea_skipTile3
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lda #TILE_STATE_DIRTY
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sta tiles,x
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sta tiles+TILE_DIRTY_OFFSET,x
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txa
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sta dirtyGameTiles,y
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iny
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@ -69,10 +69,10 @@ drawFlea_skipTile2 anop
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drawFlea_skipTile3 anop
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ldx fleaTileOffsets+6
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lda tiles,x
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lda tiles+TILE_DIRTY_OFFSET,x
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bne drawFlea_skipTile4
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lda #TILE_STATE_DIRTY
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sta tiles,x
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sta tiles+TILE_DIRTY_OFFSET,x
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txa
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sta dirtyGameTiles,y
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iny
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@ -117,6 +117,7 @@ updateFlea_cont anop
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; Handle explosion
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lda fleaSprite
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beq updateFlea_explosionDone
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sec
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sbc #$4
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sta fleaSprite
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rtl
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@ -141,6 +142,7 @@ updateFlea_bottomOfTile anop
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lda fleaSprite
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beq updateFlea_resetSprite
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sec
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sbc #$4
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sta fleaSprite
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bra updateFlea_nextAction
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@ -156,25 +158,25 @@ updateFlea_nextTile anop
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ldx fleaTileOffsets
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stx fleaTileOffsets+4
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lda tiles+8,x
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lda tiles+TILE_BELOW_OFFSET,x
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cmp #INVALID_TILE_NUM
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beq updateFlea_bottom
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sta fleaTileOffsets
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ldx fleaTileOffsets+2
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stx fleaTileOffsets+6
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lda tiles+8,x
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lda tiles+TILE_BELOW_OFFSET,x
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sta fleaTileOffsets+2
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ldx fleaTileOffsets+4
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lda tiles+4,x
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lda tiles+TILE_TYPE_OFFSET,x
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bne updateFlea_nextAction
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jsl rand65535
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and #$7
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bne updateFlea_nextAction
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lda #TILE_MUSHROOM4
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sta tiles+4,x
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sta tiles+TILE_TYPE_OFFSET,x
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bra updateFlea_nextAction
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@ -219,11 +221,11 @@ addFlea entry
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sta fleaTileOffsets+4
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tax
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lda tiles+10,x
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lda tiles+TILE_LEFT_OFFSET,x
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sta fleaTileOffsets+2
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sta fleaTileOffsets+6
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lda tiles+2,x
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lda tiles+TILE_SCREEN_OFFSET_OFFSET,x
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sec
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sbc #6*SCREEN_BYTES_PER_ROW+3
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sta fleaScreenOffset
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@ -261,6 +263,7 @@ shootFlea_faster anop
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bcc shootFlea_done
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lda fleaScreenOffset
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sec
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sbc #SCREEN_BYTES_PER_ROW
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sta fleaScreenOffset
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@ -14,11 +14,13 @@ gameScorpion start
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using globalData
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scorpionState_none equ 0
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scorpionState_left equ 1
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scorpionState_right equ 2
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scorpionState_exploding equ 3
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SCORPION_STATE_NONE equ 0
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SCORPION_STATE_LEFT equ 1
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SCORPION_STATE_RIGHT equ 2
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SCORPION_STATE_EXPLODING equ 3
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SCORPION_SLOW_UPDATES_PER_TILE equ TILE_PIXEL_WIDTH-1
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SCORPION_FAST_UPDATES_PER_TILE equ TILE_PIXEL_WIDTH/2-1
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drawScorpion entry
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lda scorpionState
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@ -31,10 +33,10 @@ drawScorpion_cont anop
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jsl scorpionJump
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ldx scorpionTileOffsets
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lda tiles,x
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lda tiles+TILE_DIRTY_OFFSET,x
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bne drawScorpion_skipTile1
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lda #$1
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sta tiles,x
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lda #TILE_STATE_DIRTY
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sta tiles+TILE_DIRTY_OFFSET,x
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txa
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cmp #RHS_FIRST_TILE_OFFSET
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bge drawScorpion_nonGame1
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@ -56,10 +58,10 @@ drawScorpion_nonGame1 anop
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drawScorpion_skipTile1 anop
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ldx scorpionTileOffsets+2
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lda tiles,x
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lda tiles+TILE_DIRTY_OFFSET,x
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bne drawScorpion_skipTile2
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lda #$1
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sta tiles,x
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lda #TILE_STATE_DIRTY
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sta tiles+TILE_DIRTY_OFFSET,x
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txa
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cmp #RHS_FIRST_TILE_OFFSET
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bge drawScorpion_nonGame2
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@ -81,10 +83,10 @@ drawScorpion_nonGame2 anop
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drawScorpion_skipTile2 anop
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ldx scorpionTileOffsets+4
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lda tiles,x
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lda tiles+TILE_DIRTY_OFFSET,x
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bne drawScorpion_done
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lda #$1
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sta tiles,x
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lda #TILE_STATE_DIRTY
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sta tiles+TILE_DIRTY_OFFSET,x
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txa
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cmp #RHS_FIRST_TILE_OFFSET
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bge drawScorpion_nonGame3
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@ -108,7 +110,7 @@ drawScorpion_done anop
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scorpionJump entry
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cmp #scorpionState_left
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cmp #SCORPION_STATE_LEFT
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bne scorpionJump_next
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lda scorpionLeftJumpTable,x
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@ -119,7 +121,7 @@ scorpionJump entry
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bra jumpInst
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scorpionJump_next anop
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cmp #scorpionState_right
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cmp #SCORPION_STATE_RIGHT
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bne scorpionJump_explosion
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lda scorpionRightJumpTable,x
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@ -132,7 +134,7 @@ scorpionJump_next anop
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scorpionJump_explosion anop
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tya
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clc
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adc #$4
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adc #TILE_BYTE_WIDTH
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tay
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lda explosionJumpTable,x
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@ -150,16 +152,16 @@ updateScorpion entry
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beq updateScorpion_done
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lda scorpionSprite
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cmp #$3c
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beq updateScorpionLeft_resetSprite
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clc
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adc #$4
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sec
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sbc #$4
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sta scorpionSprite
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bra updateScorpionLeft_nextAction
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updateScorpionLeft_resetSprite anop
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stz scorpionSprite
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lda #SCORPION_SPRITE_LAST_OFFSET
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sta scorpionSprite
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updateScorpionLeft_nextAction anop
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lda scorpionShiftInTile
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@ -174,7 +176,7 @@ updateScorpionLeft_nextAction anop
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updateScorpionLeft_nextTile anop
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dec scorpionScreenOffset
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lda #$7
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lda #SCORPION_SLOW_UPDATES_PER_TILE
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sta scorpionShiftInTile
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ldx scorpionTileOffsets+2
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@ -184,7 +186,7 @@ updateScorpionLeft_nextTile anop
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stx scorpionTileOffsets+4
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ldx scorpionTileOffsets
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stx scorpionTileOffsets+2
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lda tiles+10,x
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lda tiles+TILE_LEFT_OFFSET,x
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sta scorpionTileOffsets
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rtl
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@ -199,25 +201,28 @@ addScorpion entry
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lda scorpionState
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bne addScorpion_done
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lda #scorpionState_left
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lda #SCORPION_STATE_LEFT
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sta scorpionState
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ldx #24*16
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ldx #(24+25)*16
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stx scorpionTileOffsets
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lda tiles+2,x
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lda tiles+TILE_SCREEN_OFFSET_OFFSET,x
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dec a
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sta scorpionScreenOffset
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lda tiles+12,x
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lda tiles+TILE_RIGHT_OFFSET,x
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sta scorpionTileOffsets+2
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tax
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lda tiles+12,x
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lda tiles+TILE_RIGHT_OFFSET,x
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sta scorpionTileOffsets+4
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lda #$7
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lda #SCORPION_SLOW_UPDATES_PER_TILE
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sta scorpionShiftInTile
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lda #SCORPION_SPRITE_LAST_OFFSET
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sta scorpionSprite
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addScorpion_done anop
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rtl
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@ -226,7 +231,7 @@ shootScorpion entry
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rtl
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scorpionState dc i2'scorpionState_none'
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scorpionState dc i2'SCORPION_STATE_NONE'
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scorpionScreenOffset dc i2'0'
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scorpionTileOffsets dc i2'0'
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dc i2'0'
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@ -234,39 +239,42 @@ scorpionTileOffsets dc i2'0'
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scorpionShiftInTile dc i2'0'
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scorpionSprite dc i2'0'
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scorpionLeftJumpTable dc i4'leftScorpion1s'
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SCORPION_SPRITE_LAST_OFFSET gequ 15*4
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scorpionLeftJumpTable dc i4'leftScorpion4'
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dc i4'leftScorpion4s'
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dc i4'leftScorpion4'
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dc i4'leftScorpion4s'
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dc i4'leftScorpion3'
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dc i4'leftScorpion3s'
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dc i4'leftScorpion3'
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dc i4'leftScorpion3s'
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dc i4'leftScorpion2'
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dc i4'leftScorpion2s'
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dc i4'leftScorpion2'
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dc i4'leftScorpion2s'
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dc i4'leftScorpion1'
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dc i4'leftScorpion1s'
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dc i4'leftScorpion1'
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dc i4'leftScorpion2s'
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dc i4'leftScorpion2'
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dc i4'leftScorpion2s'
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dc i4'leftScorpion2'
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dc i4'leftScorpion3s'
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dc i4'leftScorpion3'
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dc i4'leftScorpion3s'
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dc i4'leftScorpion3'
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dc i4'leftScorpion4s'
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dc i4'leftScorpion4'
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dc i4'leftScorpion4s'
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dc i4'leftScorpion4'
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dc i4'leftScorpion1s'
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scorpionRightJumpTable dc i4'rightScorpion1s'
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scorpionRightJumpTable dc i4'rightScorpion4'
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dc i4'rightScorpion4s'
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dc i4'rightScorpion4'
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dc i4'rightScorpion4s'
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dc i4'rightScorpion3'
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dc i4'rightScorpion3s'
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dc i4'rightScorpion3'
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dc i4'rightScorpion3s'
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dc i4'rightScorpion2'
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dc i4'rightScorpion2s'
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dc i4'rightScorpion2'
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dc i4'rightScorpion2s'
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dc i4'rightScorpion1'
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dc i4'rightScorpion1s'
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dc i4'rightScorpion1'
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dc i4'rightScorpion2s'
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dc i4'rightScorpion2'
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dc i4'rightScorpion2s'
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dc i4'rightScorpion2'
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dc i4'rightScorpion3s'
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dc i4'rightScorpion3'
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dc i4'rightScorpion3s'
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dc i4'rightScorpion3'
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dc i4'rightScorpion4s'
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dc i4'rightScorpion4'
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dc i4'rightScorpion4s'
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dc i4'rightScorpion4'
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dc i4'rightScorpion1s'
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end
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@ -20,6 +20,11 @@ SCREEN_BYTES_PER_ROW gequ 160
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SIZEOF_TILE_INFO gequ 16
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TILE_PIXEL_WIDTH gequ 8
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TILE_PIXEL_HEIGHT gequ 8
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TILE_BYTE_WIDTH gequ TILE_PIXEL_WIDTH/2
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GAME_NUM_TILES_WIDE gequ 25
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GAME_NUM_TILES_TALL gequ 25
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@ -103,9 +108,13 @@ TILE_SOLID3 gequ 51*4
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TILE_PLAYER gequ 52*4
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tileState gequ tiles
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tileScreenOffset gequ tileState+2
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TILE_DIRTY_OFFSET gequ 0
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TILE_SCREEN_OFFSET_OFFSET gequ 2
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TILE_TYPE_OFFSET gequ 4
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TILE_ABOVE_OFFSET gequ 6
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TILE_BELOW_OFFSET gequ 8
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TILE_LEFT_OFFSET gequ 10
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TILE_RIGHT_OFFSET gequ 12
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backupStack dc i2'0'
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