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A 64 Game - Step 67

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Endurion

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And per popular request now we also have a Game Over sequence. We add the missing letters and add a short loop displaying and animating the sprites.

step67.png

At the beginning of CheckForHighscore (which is called on game over) we add a short loop. This snippet calls a sub routine to set up the sprites and then animates the letter for a short period.


;display game over
jsr DisplayGameOver

;animate
lda #0
sta SPRITE_STATE

.GameOverDelay
jsr WaitFrame

lda SPRITE_STATE
and #$1f
tax
ldy #0
lda #8
sta PARAM2

-
lda PATH_8_DY,x
and #$80
bne +

lda PATH_8_DY,x
clc
adc #110
--
sta VIC_SPRITE_Y_POS,y
jmp ++


+
lda PATH_8_DY,x
and #$7f
sta PARAM1

lda #110
sec
sbc PARAM1
jmp --

++
iny
iny

inx
inx
txa
and #$1f
tax

dec PARAM2
bne -

inc SPRITE_STATE
bne .GameOverDelay


;check for highscore
lda #0
sta VIC_SPRITE_ENABLE


Here's the sub routine to set up the sprites:


;------------------------------------------------------------
;displays game over
;------------------------------------------------------------
!zone DisplayGameOver
DisplayGameOver
ldx #0
ldy #0

-
lda GETREADY_SPRITE_X_POS,x
sta VIC_SPRITE_X_POS,y
lda GETREADY_SPRITE_COLOR,x
sta VIC_SPRITE_COLOR,x
iny
iny
inx
cpx #8
bne -

lda #110
sta VIC_SPRITE_Y_POS
sta VIC_SPRITE_Y_POS + 2
sta VIC_SPRITE_Y_POS + 4
sta VIC_SPRITE_Y_POS + 6
sta VIC_SPRITE_Y_POS + 8
sta VIC_SPRITE_Y_POS + 10
sta VIC_SPRITE_Y_POS + 12
sta VIC_SPRITE_Y_POS + 14

lda #SPRITE_G
sta SPRITE_POINTER_BASE
lda #SPRITE_A
sta SPRITE_POINTER_BASE + 1
lda #SPRITE_M
sta SPRITE_POINTER_BASE + 2
lda #SPRITE_E
sta SPRITE_POINTER_BASE + 3
sta SPRITE_POINTER_BASE + 6
lda #SPRITE_O
sta SPRITE_POINTER_BASE + 4
lda #SPRITE_V
sta SPRITE_POINTER_BASE + 5
lda #SPRITE_R
sta SPRITE_POINTER_BASE + 7

lda #0
sta VIC_SPRITE_MULTICOLOR
lda #$80
sta VIC_SPRITE_X_EXTEND
lda #$ff
sta VIC_SPRITE_ENABLE
sta VIC_SPRITE_EXPAND_X
sta VIC_SPRITE_EXPAND_Y
rts


Well, that's that smile.png


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