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Effect_1_AllColorsborder.asm
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Effect_1_AllColorsborder.asm
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;**********************
;* Gray Defender
;* 02/12/2020
;* All colors on border
;* Semi-Optimized
;**********************
*=$2000
;******************************************************
; CLEAR SCREEN
;******************************************************
lda #42
ldx #0
@clr_loop sta $400,x
sta $500,x
sta $600,x
sta $700,x
dex
bne @clr_loop
;*******************************************
master_loop
inc Current_Effect; Loop through all effects
lda Current_Effect;
cmp Total_Effects;
bne @MOVE_EFFECT
lda #0 ;
sta Current_Effect; Start Over
;*******************************************
@MOVE_EFFECT
; ldx Current_Effect
; lda effect_fgcol,x
; Place_Color1
jsr delay
ldx Current_Effect
lda effect_bgcol,x
inc effect_bgcol,x; *** Added for Effect
Place_Color1
;*******************************************
ldx Current_Effect
lda horizontal,x
beq HORIZ
;*******************************************
Vertical
lda effect_updown,x
bne UP
DOWN inc effect_cury,x
ChkDirection effect_cury,start_ymax,#0,#1,effect_updown
UP
dec effect_cury,x
ChkDirection effect_cury,start_ymin,#0,#0,effect_updown
HORIZ
lda effect_dir,x
bne RIGHT
LEFT
inc effect_fgcol,x
dec effect_curx,x
ChkDirection effect_curx,start_xmin,#1,#1,effect_dir
RIGHT
inc effect_curx,x
ChkDirection effect_curx,start_xmax,#1,#0,effect_dir
defm ChkDirection
lda /1,x
cmp /2,x
bne @exit
lda /3
sta horizontal,x; Switch to horizontal
lda /4
sta /5,x ; Switch to down
@exit jmp master_loop
endm
;*******************************************
delay
txa
pha
tya
pha
ldx #7
@lp1 ldy #5
@lp2 dey
bne @lp2
dex
bne @lp1
pla
tay
pla
tax
rts
;*******************************************
defm Place_Color1
sta @ch_color1+1 ; Grab Y value
ldx Current_Effect ;
lda effect_cury,x ;
tay
ldx Current_Effect ; Grab X value
lda effect_curx,x ;
tax ;
lda map_off_l,y ; Load low byte pos of color
sta @screen+1 ; on the screen
lda map_off_h,y ; Load high byte pos of color
sta @screen+2 ; on the screen
@ch_color1 lda #$00 ; Load color to store
@screen sta $d800,x ; Store color on screen
endm
;*******************************************
; VARIABLES
;*******************************************
start_xmin byte 00,01,02,03,04,05,06,07,08,09,10,11,10
start_ymin byte 00,01,02,03,04,05,06,07,08,09,10,11,10
start_xmax byte 39,38,37,36,35,34,33,32,31,30,29,28,27
start_ymax byte 24,23,22,21,20,19,18,17,16,15,14,13,12
horizontal byte 00,00,00,00,00,00,00,00,00,00,00,00,00 ; 00= Horiz 01= Vertical
effect_dir byte 00,01,01,00,01,00,01,00,01,00,01,00,01 ; 00 = left 01 = Right
effect_updown byte 00,00,00,00,00,00,00,00,00,00,00,00,00 ; 00=Down 01=Up
effect_curx byte 15,15,20,20,15,16,17,18,15,16,17,12,10 ; Current xmin of effect
effect_cury byte 00,01,02,03,04,05,06,07,08,09,10,11,11 ; Current ymin of effect
effect_fgcol byte 00,00,00,02,08,00,10,11,01,03,04,05,05 ; effect one front color
effect_bgcol byte 00,00,00,00,05,01,07,08,14,07,16,08,08 ; effect one back color
Total_Effects byte 01 ; Maximum effects in play
Current_Effect byte 00 ; Current effect being worked on
map_off_l byte $00,$28,$50,$78,$A0,$C8,$F0,$18,$40,$68,$90,$b8,$E0,$08,$30,$58,$80,$a8,$d0,$f8,$20,$48,$70,$98,$c0
map_off_h byte $D8,$D8,$D8,$D8,$D8,$D8,$D8,$D9,$D9,$D9,$D9,$D9,$D9,$DA,$DA,$DA,$DA,$DA,$DA,$DA,$DB,$DB,$DB,$DB,$DB
counter byte 00