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BuGS/BuGS/game.s

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Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
;
; game.s
; BuGS
;
; Created by Jeremy Rand on 2020-06-10.
;Copyright © 2020 Jeremy Rand. All rights reserved.
;
Finish the sprites for the flea and the 300, 600 and 900 score notices.
2020-06-19 03:35:20 +00:00
;
; The actual game is a 30x30 grid of 8x8 tiles.
; The GS can do 30 wide with 10 tiles to spare.
; The GS can only do 25 tiles tall though. So,
; the screen will be 30 wide pushed to the right-
; most side. The left side will have the score,
; count of lives and the high score. Rather than
; having them at the top, running that info on
; the side will give us more vertical height for
; more on-screen action.
Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
case on
mcopy game.macros
keep game
game start
Add some code to set the scan line control bytes and the colour palette for all of the different levels of the game.
2020-06-16 04:02:20 +00:00
jsl setupScreen
Finish the sprites for the flea and the 300, 600 and 900 score notices.
2020-06-19 03:35:20 +00:00
lda colourPalette
Add some code to set the scan line control bytes and the colour palette for all of the different levels of the game.
2020-06-16 04:02:20 +00:00
jsl setColour
Add some code to support animating fleas in the game.
2020-07-19 02:11:20 +00:00
gameLoop anop
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
jsl drawDirtyGameTiles
Add some code to support animating fleas in the game.
2020-07-19 02:11:20 +00:00
jsl drawFlea
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
jsl drawDirtyNonGameTiles
Add some code to support animating fleas in the game.
2020-07-19 02:11:20 +00:00
jsl updateFlea
jsl checkKeyboard
Add support for shooting fleas. When a flea is shot once, it accelerates its drop to the bottom. On the second shot, it explodes.
2020-07-20 04:05:18 +00:00
Add some code to support animating fleas in the game.
2020-07-19 02:11:20 +00:00
jsl waitForVbl
lda shouldQuit
bne gameLoop
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
rtl
drawDirtyGameTiles entry
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy numDirtyGameTiles
beq dirtyTileLoopDone
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
dirtyTileLoop anop
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
dey
dey
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
phy
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldx dirtyGameTiles,y
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
stz tiles,x
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy tiles+2,x
lda tiles+4,x
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
jsl drawTile
ply
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
bne dirtyTileLoop
dirtyTileLoopDone anop
stz numDirtyGameTiles
rtl
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
drawDirtyNonGameTiles entry
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy numDirtyNonGameTiles
beq dirtyTileLoopDone2
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
dirtyTileLoop2 anop
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
dey
dey
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
phy
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldx dirtyNonGameTiles,y
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
stz tiles,x
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy tiles+2,x
lda tiles+4,x
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
jsl drawTile
ply
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
bne dirtyTileLoop2
dirtyTileLoopDone2 anop
stz numDirtyNonGameTiles
rtl
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
drawTile entry
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
tax
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
lda tileJumpTable,x
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
sta jumpInst+1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
lda tileJumpTable+2,x
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
sta jumpInst+3
jumpInst jmp >mushroom1
nop
drawAll entry
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2003
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl mushroom1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$200b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl mushroom2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2013
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl mushroom3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$201b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl mushroom4
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2023
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl poisonedMushroom1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$202b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl poisonedMushroom2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2033
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl poisonedMushroom3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$203b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl poisonedMushroom4
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2043
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterA
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$204b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterB
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2053
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterC
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$205b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterD
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2063
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterE
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$206b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterF
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2073
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterG
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$207b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterH
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2083
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterI
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$208b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterJ
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2093
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterK
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$209b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterL
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a03
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterM
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a0b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterN
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a13
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterO
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a1b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterP
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a23
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterQ
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a2b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterR
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a33
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterS
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a3b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterT
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a43
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterU
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a4b
Start coding up the sprite code.
2020-06-17 03:59:12 +00:00
jsl letterV
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a53
Finish the sprites for the letters.
2020-06-17 06:16:04 +00:00
jsl letterW
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a5b
Finish the sprites for the letters.
2020-06-17 06:16:04 +00:00
jsl letterX
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a63
Finish the sprites for the letters.
2020-06-17 06:16:04 +00:00
jsl letterY
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a6b
Finish the sprites for the letters.
2020-06-17 06:16:04 +00:00
jsl letterZ
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a73
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl symbolC
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a7b
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl symbolP
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a83
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl symbolDot
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a8b
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl symbolColon
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a93
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl solid0
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$2a9b
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl solid1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3403
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl solid2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$340b
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl solid3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3413
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl number0
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$341b
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl number1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3423
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl number2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$342b
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl number3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3433
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl number4
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$343b
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl number5
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3443
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl number6
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$344b
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl number7
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3453
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl number8
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$345b
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl number9
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$345f
Finish sprites for numbers and start work on the flea.
2020-06-18 04:03:41 +00:00
jsl flea1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3467
Finish the sprites for the flea and the 300, 600 and 900 score notices.
2020-06-19 03:35:20 +00:00
jsl flea2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$346f
Finish the sprites for the flea and the 300, 600 and 900 score notices.
2020-06-19 03:35:20 +00:00
jsl flea3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3477
Finish the sprites for the flea and the 300, 600 and 900 score notices.
2020-06-19 03:35:20 +00:00
jsl flea4
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$347e
Finish the sprites for the flea and the 300, 600 and 900 score notices.
2020-06-19 03:35:20 +00:00
jsl score300
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3486
Finish the sprites for the flea and the 300, 600 and 900 score notices.
2020-06-19 03:35:20 +00:00
jsl score600
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$348e
Finish the sprites for the flea and the 300, 600 and 900 score notices.
2020-06-19 03:35:20 +00:00
jsl score900
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3e04
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftScorpion1
Add some sprites for the scorpion.
2020-06-23 03:45:25 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3e14
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftScorpion1s
Add some sprites for the scorpion.
2020-06-23 03:45:25 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3e24
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftScorpion2
Add some more sprites for the scorpion.
2020-06-23 05:52:06 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3e34
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftScorpion2s
Add some more sprites for the scorpion.
2020-06-23 05:52:06 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3e44
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftScorpion3
Finish the left facing scorpion sprites. Still need to do the mirror image for right facing.
2020-06-24 03:38:47 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3e54
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftScorpion3s
Finish the left facing scorpion sprites. Still need to do the mirror image for right facing.
2020-06-24 03:38:47 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3e64
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftScorpion4
Finish the left facing scorpion sprites. Still need to do the mirror image for right facing.
2020-06-24 03:38:47 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$3e74
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftScorpion4s
Lots of optimization of the sprite code. More scorpions going in the right direction.
2020-06-30 03:45:40 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$4804
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl rightScorpion1
Lots of optimization of the sprite code. More scorpions going in the right direction.
2020-06-30 03:45:40 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$4814
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl rightScorpion1s
Lots of optimization of the sprite code. More scorpions going in the right direction.
2020-06-30 03:45:40 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$4824
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl rightScorpion2
Lots of optimization of the sprite code. More scorpions going in the right direction.
2020-06-30 03:45:40 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$4834
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl rightScorpion2s
Lots of optimization of the sprite code. More scorpions going in the right direction.
2020-06-30 03:45:40 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$4844
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl rightScorpion3
Lots of optimization of the sprite code. More scorpions going in the right direction.
2020-06-30 03:45:40 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$4854
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl rightScorpion3s
Lots of optimization of the sprite code. More scorpions going in the right direction.
2020-06-30 03:45:40 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$4864
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl rightScorpion4
Lots of optimization of the sprite code. More scorpions going in the right direction.
2020-06-30 03:45:40 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$4874
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl rightScorpion4s
Finish the left facing scorpion sprites. Still need to do the mirror image for right facing.
2020-06-24 03:38:47 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5204
Add the first spider sprite.
2020-07-01 03:38:27 +00:00
jsl spider1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5214
More spider sprites.
2020-07-01 17:53:42 +00:00
jsl spider1s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5224
More spider sprites.
2020-07-01 17:53:42 +00:00
jsl spider2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5234
More spider sprites.
2020-07-01 17:53:42 +00:00
jsl spider2s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5244
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl spider3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5254
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl spider3s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5264
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl spider4
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5274
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl spider4s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5284
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl spider5
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5294
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl spider5s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c04
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl spider6
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c14
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl spider6s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c24
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl spider7
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c34
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl spider7s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c40
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl explosion1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c48
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl explosion2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c50
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl explosion3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c58
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl explosion4
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c60
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl explosion5
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c68
Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites.
2020-07-03 02:57:52 +00:00
jsl explosion6
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c70
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftHead1
Start adding centipede head segment sprites.
2020-07-03 06:04:27 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c78
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftHead1s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c80
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftHead2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c88
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftHead2s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c90
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftHead3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$5c98
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftHead3s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6600
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftHead4
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6608
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftHead4s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6610
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftHead5
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6618
Create all of the left facing head segment sprites.
2020-07-04 06:45:53 +00:00
jsl leftHead5s
Start adding centipede head segment sprites.
2020-07-03 06:04:27 +00:00
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6620
Add the left body segment sprites.
2020-07-04 06:59:42 +00:00
jsl leftBody1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6628
Add the left body segment sprites.
2020-07-04 06:59:42 +00:00
jsl leftBody1s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6630
Add the left body segment sprites.
2020-07-04 06:59:42 +00:00
jsl leftBody2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6638
Add the left body segment sprites.
2020-07-04 06:59:42 +00:00
jsl leftBody2s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6640
Add the left body segment sprites.
2020-07-04 06:59:42 +00:00
jsl leftBody3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6648
Add the left body segment sprites.
2020-07-04 06:59:42 +00:00
jsl leftBody3s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6650
Add the left body segment sprites.
2020-07-04 06:59:42 +00:00
jsl leftBody4
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6658
Add the left body segment sprites.
2020-07-04 06:59:42 +00:00
jsl leftBody4s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6660
Add the left body segment sprites.
2020-07-04 06:59:42 +00:00
jsl leftBody5
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6668
Add the left body segment sprites.
2020-07-04 06:59:42 +00:00
jsl leftBody5s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6670
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightHead1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6678
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightHead1s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6680
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightHead2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6688
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightHead2s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6690
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightHead3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$6698
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightHead3s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7000
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightHead4
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7008
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightHead4s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7010
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightHead5
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7018
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightHead5s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7020
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightBody1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7028
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightBody1s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7030
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightBody2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7038
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightBody2s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7040
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightBody3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7048
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightBody3s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7050
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightBody4
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7058
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightBody4s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7060
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightBody5
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7068
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl rightBody5s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7070
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl leftDownHead1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7078
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl leftDownHead1s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7080
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl leftDownHead2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7088
Add a bunch more centipede segment sprites.
2020-07-06 04:01:44 +00:00
jsl leftDownHead2s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7090
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl leftDownBody1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7098
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl leftDownBody1s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a00
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl leftDownBody2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a08
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl leftDownBody2s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a10
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl rightDownHead1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a18
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl rightDownHead1s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a20
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl rightDownHead2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a28
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl rightDownHead2s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a30
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl rightDownBody1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a38
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl rightDownBody1s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a40
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl rightDownBody2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a48
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl rightDownBody2s
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a50
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl downHead1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a58
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl downHead2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a60
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl downHead3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a68
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl downBody1
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a70
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl downBody2
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a78
Finish the centipede segment sprites.
2020-07-09 04:27:32 +00:00
jsl downBody3
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a80
Lots of general sprite cleanup. Add sprites for the ship and the shots and include collision detection in those routines. I think all of the drawing code is done now, maybe?
2020-07-10 02:55:08 +00:00
jsl drawShip
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a88
Lots of general sprite cleanup. Add sprites for the ship and the shots and include collision detection in those routines. I think all of the drawing code is done now, maybe?
2020-07-10 02:55:08 +00:00
jsl drawShipShift
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a90
Lots of general sprite cleanup. Add sprites for the ship and the shots and include collision detection in those routines. I think all of the drawing code is done now, maybe?
2020-07-10 02:55:08 +00:00
jsl drawHalfShot
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$7a98
Lots of general sprite cleanup. Add sprites for the ship and the shots and include collision detection in those routines. I think all of the drawing code is done now, maybe?
2020-07-10 02:55:08 +00:00
jsl drawHalfShotShift
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$8400
Lots of general sprite cleanup. Add sprites for the ship and the shots and include collision detection in those routines. I think all of the drawing code is done now, maybe?
2020-07-10 02:55:08 +00:00
jsl drawShot
A bunch of optimizations to reduce the number of instructions to draw tiles.
2020-07-17 06:46:36 +00:00
ldy #$8408
Lots of general sprite cleanup. Add sprites for the ship and the shots and include collision detection in those routines. I think all of the drawing code is done now, maybe?
2020-07-10 02:55:08 +00:00
jsl drawShotShift
Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
rtl
Add some code to set the scan line control bytes and the colour palette for all of the different levels of the game.
2020-06-16 04:02:20 +00:00
setupScreen entry
Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
short i,m
lda $e0c035 ; Enable shadowing of SHR
and #$f7
sta $e0c035
lda #$a1
sta $e0c029 ; Enable SHR mode
long i,m
sei
phd
tsc
sta backupStack
lda $e1c068 ; Direct Page and Stack in Bank 01/
ora #$0030
sta $e1c068
ldx #$0000
Add some code to set the scan line control bytes and the colour palette for all of the different levels of the game.
2020-06-16 04:02:20 +00:00
lda #$9dfe
Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
tcs
Add some code to set the scan line control bytes and the colour palette for all of the different levels of the game.
2020-06-16 04:02:20 +00:00
ldy #$7e00
Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
nextWord anop
phx
dey
dey
bpl nextWord
lda $e1c068
and #$ffcf
sta $e1c068
lda backupStack
tcs
pld
cli
Add some code to set the scan line control bytes and the colour palette for all of the different levels of the game.
2020-06-16 04:02:20 +00:00
Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
rtl
Add some code to support animating fleas in the game.
2020-07-19 02:11:20 +00:00
checkKeyboard entry
checkKey_loop2 anop
short i,m
lda $e0c000
Add the code to animate a flea down the screen on demand.
2020-07-19 03:41:21 +00:00
bpl checkKey_done
Add some code to support animating fleas in the game.
2020-07-19 02:11:20 +00:00
sta $e0c010
long i,m
and #$007f
cmp #'q'
beq checkKey_quit
cmp #'Q'
beq checkKey_quit
cmp #$001b
beq checkKey_quit
cmp #'f'
beq checkKey_addFlea
cmp #'F'
beq checkKey_addFlea
Add support for shooting fleas. When a flea is shot once, it accelerates its drop to the bottom. On the second shot, it explodes.
2020-07-20 04:05:18 +00:00
cmp #'s'
beq checkKey_shootFlea
cmp #'S'
beq checkKey_shootFlea
Add some code to support animating fleas in the game.
2020-07-19 02:11:20 +00:00
lda colourPalette
inc a
cmp #$000e
blt checkKey_skip
lda #$0000
checkKey_skip anop
sta colourPalette
jsl setColour
rtl
checkKey_addFlea anop
jsl addFlea
rtl
Add support for shooting fleas. When a flea is shot once, it accelerates its drop to the bottom. On the second shot, it explodes.
2020-07-20 04:05:18 +00:00
checkKey_shootFlea anop
jsl shootFlea
rtl
Add some code to support animating fleas in the game.
2020-07-19 02:11:20 +00:00
checkKey_quit anop
stz shouldQuit
checkKey_done anop
rtl
Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
waitForKey entry
Add the code to animate a flea down the screen on demand.
2020-07-19 03:41:21 +00:00
short i,m
waitForKey_loop anop
Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
lda $e0c000
Add the code to animate a flea down the screen on demand.
2020-07-19 03:41:21 +00:00
bpl waitForKey_loop
Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
sta $e0c010
long i,m
Add the code to animate a flea down the screen on demand.
2020-07-19 03:41:21 +00:00
rtl
Add a wait for VBL function.
2020-07-16 03:20:35 +00:00
waitForVbl entry
short i,m
vblLoop1 anop
Fix the VBL code.
2020-07-19 03:46:09 +00:00
lda #$fe
cmp $e0c019
bpl vblLoop1
Add a wait for VBL function.
2020-07-16 03:20:35 +00:00
vblLoop2 anop
Fix the VBL code.
2020-07-19 03:46:09 +00:00
cmp $e0c019
Add a wait for VBL function.
2020-07-16 03:20:35 +00:00
bmi vblLoop2
long i,m
rtl
Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
backupStack dc i2'0'
Finish the sprites for the flea and the 300, 600 and 900 score notices.
2020-06-19 03:35:20 +00:00
colourPalette dc i2'0'
Add some code to support animating fleas in the game.
2020-07-19 02:11:20 +00:00
shouldQuit dc i2'1'
Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
Start implementing the code to draw the tiles on the screen.
2020-07-15 04:32:14 +00:00
tileJumpTable dc a4'solid0'
dc a4'mushroom4'
dc a4'mushroom3'
dc a4'mushroom2'
dc a4'mushroom1'
dc a4'symbolC'
dc a4'symbolP'
dc a4'symbolDot'
dc a4'symbolColon'
dc a4'poisonedMushroom4'
dc a4'poisonedMushroom3'
dc a4'poisonedMushroom2'
dc a4'poisonedMushroom1'
dc a4'letterA'
dc a4'letterB'
dc a4'letterC'
dc a4'letterD'
dc a4'letterE'
dc a4'letterF'
dc a4'letterG'
dc a4'letterH'
dc a4'letterI'
dc a4'letterJ'
dc a4'letterK'
dc a4'letterL'
dc a4'letterM'
dc a4'letterN'
dc a4'letterO'
dc a4'letterP'
dc a4'letterQ'
dc a4'letterR'
dc a4'letterS'
dc a4'letterT'
dc a4'letterU'
dc a4'letterV'
dc a4'letterW'
dc a4'letterX'
dc a4'letterY'
dc a4'letterZ'
dc a4'number0'
dc a4'number1'
dc a4'number2'
dc a4'number3'
dc a4'number4'
dc a4'number5'
dc a4'number6'
dc a4'number7'
dc a4'number8'
dc a4'number9'
dc a4'solid1'
dc a4'solid2'
dc a4'solid3'
dc a4'drawPlayer'
Well, it launches, clears the screen, waits for a key and then quits. But it is a start.
2020-06-11 03:51:53 +00:00
end
Reference in New Issue Copy Permalink