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sprites: blast... not really that cool in the end

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This commit is contained in:
Vince Weaver 2019-06-13 15:45:35 -04:00
parent 906569c082
commit dbd86272c4
1 changed files with 54 additions and 9 deletions
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63
interlace_demo/sprites.s
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@ -257,9 +257,10 @@ display_loop:
; -33 -- handle fire press
; -51 -- exploding asteroid
; -47 -- sparkle
; -36 -- blast (18+18)
; -8 -- loop
;=======
; 238
; 202
; -40 nop sled
@ -839,6 +840,52 @@ draw_asteroid:
; 348
;=================
; BLAST1
;=================
; blast1: 6+7+5 = 18
; noblast1: 6+5+[7]
lda BLAST1 ; 3
beq no_blast1d ; 3
blast1:
; -1
inc ZERO ; 5
jmp no_blast1 ; 3
no_blast1d:
lda TEMP ; 3
nop ; 2
nop ; 2
no_blast1:
lda #0 ; 2
sta BLAST1 ; 3
;=================
; BLAST2
;=================
; blast2: 6+7+5 = 18
; noblast1: 6+5+[7]
lda BLAST2 ; 3
beq no_blast2d ; 3
blast2:
; -1
lda #0 ; 2
sta ZERO ; 3
jmp no_blast2 ; 3
no_blast2d:
lda TEMP
nop
nop
no_blast2:
lda #0 ; 2
sta BLAST2 ; 3
;==================
; sparkle flame
;==================
@ -907,18 +954,13 @@ pad_time:
;============================
wait_loop:
; Try X=3 Y=11 cycles=232R6
; Try X=37 Y=1 cycles=192R6
; Try X=30 Y=1 cycles=157 R2
nop
nop
nop
ldy #1 ; 2
loop1: ldx #37 ; 2
loop1: ldx #30 ; 2
loop2: dex ; 2
bne loop2 ; 2nt/3
dey ; 2
@ -969,7 +1011,10 @@ really_no_firing:
sta FIRE ; 3
jmp blah ; 3
.align $100
blah:
;=================================
; handle exploding asteroid
;=================================