Apple-2-SW/dos33fsprogs
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space_bars: initial space bars

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This commit is contained in:
Vince Weaver 2018-10-08 12:00:10 -04:00
parent f8f236d03e
commit eed24cc5f6
1 changed files with 86 additions and 29 deletions
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115
space_bars/game.s
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@ -39,32 +39,35 @@ game:
;==================
; setup framebuffer
lda #$12
sta FRAMEBUFFER+0
lda #$3f
sta FRAMEBUFFER+1
lda #$56
sta FRAMEBUFFER+2
lda #$78
sta FRAMEBUFFER+3
lda #$9A
sta FRAMEBUFFER+4
lda #$BC
sta FRAMEBUFFER+5
lda #$DE
sta FRAMEBUFFER+6
lda #$F0
sta FRAMEBUFFER+7
lda #$12
sta FRAMEBUFFER+8
lda #$3f
sta FRAMEBUFFER+9
lda #$56
sta FRAMEBUFFER+10
lda #$78
sta FRAMEBUFFER+11
lda #$9A
sta FRAMEBUFFER+12
lda #0
sta ZPOS
; lda #$12
; sta FRAMEBUFFER+0
; lda #$3f
; sta FRAMEBUFFER+1
; lda #$56
; sta FRAMEBUFFER+2
; lda #$78
; sta FRAMEBUFFER+3
; lda #$9A
; sta FRAMEBUFFER+4
; lda #$BC
; sta FRAMEBUFFER+5
; lda #$DE
; sta FRAMEBUFFER+6
; lda #$F0
; sta FRAMEBUFFER+7
; lda #$12
; sta FRAMEBUFFER+8
; lda #$3f
; sta FRAMEBUFFER+9
; lda #$56
; sta FRAMEBUFFER+10
; lda #$78
; sta FRAMEBUFFER+11
; lda #$9A
; sta FRAMEBUFFER+12
@ -286,20 +289,26 @@ sbloopF:dex ; 2
; do_nothing should be 4550
; -3470 draw_framebuffer
; -193 setup framebuffer
; -34 keypress
; -1 adjust center mark back
; ===========
; 1045
; 852
; Try X=6 Y=29 cycles=1045
; Try X=20 Y=8 cycles=849 R3
ldy #29 ; 2
sbloop1:ldx #6 ; 2
lda $0
ldy #8 ; 2
sbloop1:ldx #20 ; 2
sbloop2:dex ; 2
bne sbloop2 ; 2nt/3
dey ; 2
bne sbloop1 ; 2nt/3
jsr setup_framebuffer ; 6+187
jsr draw_framebuffer ; 6+3464
@ -461,3 +470,51 @@ background_hgr_end:
score_text:
.byte 0,0
.asciiz "LEVEL:6 LIVES:2 SCORE:001978 HI:002018"
; Note on the distance calculations
; we use something simplistic here
; see http://www.extentofthejam.com/pseudo/
; "Texture": 64?
; 0 GREY 5,7,f,7,5,0,0,0
; 1 0,0,0,0,0,0,0,0
; 2 BLUE 2,6,f,6,2,0,0,0
; 3 0,0,0,0,0,0,0,0
; 4 GREEN 4,c,f,c,4,0,0,0
; 5 0,0,0,0,0,0,0,0
; 6 RED 1,b,f,b,1,0,0,0
; 7 0,0,0,0,0,0,0,0
.align 64
raster_texture:
.byte $5,$7,$f,$7,$5,$0,$0,$0
.byte $0,$0,$0,$0,$0,$0,$0,$0
.byte $2,$6,$f,$6,$2,$0,$0,$0
.byte $0,$0,$0,$0,$0,$0,$0,$0
.byte $4,$c,$f,$c,$4,$0,$0,$0
.byte $0,$0,$0,$0,$0,$0,$0,$0
.byte $1,$b,$f,$b,$1,$0,$0,$0
.byte $0,$0,$0,$0,$0,$0,$0,$0
; 2 + 15*12 + 5 = 187
setup_framebuffer:
ldx #0 ; 2
setup_fb_loop:
lda raster_texture,x ; 4
sta FRAMEBUFFER,x ; 4
inx ; 2
cpx #12 ; 2
bne setup_fb_loop ; 3
;===========
; 15
; -1
rts ; 6