35 lines
806 B
NASM
35 lines
806 B
NASM
SEG programSegment
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; Reset variables for a new level
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; ----------------------------------------------------------------------
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levelresetvar:
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; Turn MultiColor mode on
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jsr multicolorOn
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; Init game variables
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lda #4
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sta irqn ; Initialize interrupt divider
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lda #6
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sta direction ; Snake must go right
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; Note: these values depends on following list initialization
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lda #19
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sta snakeX ; Snake is at screen center width...
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lda #12
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sta snakeY ; ... and height
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lda #5
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sta listStart ; Beginning of snake tiles list
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lda #5
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sta length ; Length of the list
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; Clear snake lists X and Y
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ldx #$00
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clearListLoop:
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dex
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lda #19
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sta listX,x
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lda #12
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sta listY,x
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cpx #$00
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bne clearListLoop
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rts
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