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ootw: c4: more shield magic

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the bug that took a while to fix needed a "TAY"
This commit is contained in:
Vince Weaver 2019-08-14 12:18:25 -04:00
parent 95e311c40d
commit db42d1019a
1 changed files with 62 additions and 21 deletions
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83
ootw/shield.s
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@ -107,9 +107,18 @@ draw_shields_loop:
lda shield_y,X
sta YPOS
lda #<shield_high1_sprite
ldy shield_count,X
lda shield_progression,Y
bmi destroy_shield
tay
inc shield_count,X
lda shield_table_lo,Y
sta INL
lda #>shield_high1_sprite
lda shield_table_hi,Y
sta INH
txa
@ -119,6 +128,12 @@ draw_shields_loop:
pla
tax
jmp draw_shields_loop_continue
destroy_shield:
lda #0
sta shield_out,X
dec SHIELD_OUT
draw_shields_loop_continue:
inx
@ -169,7 +184,33 @@ init_shields_loop:
rts
shield_progression:
.byte 0,1
.byte 2,3,2,3,2,3,2,3,2,3,2,3,2,3,2,3,2,3,2,3
.byte 4,5,4,5,4,5,4,5,4,5,4,5
.byte 6,7,6,7,6,7,6,7
.byte 0
.byte $FF
shield_table_hi:
.byte >shield_flash_sprite ; 0
.byte >shield_start_sprite ; 1
.byte >shield_high1_sprite ; 2
.byte >shield_high2_sprite ; 3
.byte >shield_medium1_sprite ; 4
.byte >shield_medium2_sprite ; 5
.byte >shield_low1_sprite ; 6
.byte >shield_low2_sprite ; 7
shield_table_lo:
.byte <shield_flash_sprite
.byte <shield_start_sprite
.byte <shield_high1_sprite
.byte <shield_high2_sprite
.byte <shield_medium1_sprite
.byte <shield_medium2_sprite
.byte <shield_low1_sprite
.byte <shield_low2_sprite
@ -220,46 +261,46 @@ shield_high2_sprite:
shield_medium1_sprite:
.byte 1,8
.byte $A1
.byte $AA
.byte $1B
.byte $AA
.byte $A3
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $3A
.byte $BA
shield_medium2_sprite:
.byte 1,8
.byte $AB
.byte $AA
.byte $A3
.byte $A3
.byte $AA
.byte $B3
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $1A
shield_low1_sprite:
.byte 1,8
.byte $A3
.byte $AB
.byte $AA
.byte $3A
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $1A
.byte $AA
shield_low2_sprite:
.byte 1,8
.byte $A1
.byte $AA
.byte $AA
.byte $A1
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $AA
.byte $A3
.byte $AB