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script10.s
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include macros.s
include mainsym.s
; Script 10, laser & generator
org scriptCodeStart
dc.w InstallAmplifier
dc.w RunLaser
dc.w SwitchGenerator
dc.w SwitchLaser
dc.w MoveGenerator
; Install amplifier script routine
;
; Parameters: -
; Returns: -
; Modifies: various
InstallAmplifier:
lda lvlObjB+$0e
bpl IA_NotOpen
lda lvlObjB+$0f
bmi IA_IsLive
jsr AddQuestScore
lda #SFX_POWERUP
jsr PlaySfx
lda #PLOT_AMPINSTALLED
jsr SetPlotBit
ldy #ITEM_AMPLIFIER
jsr RemoveItem
lda #$00
sta UM_ForceRefresh+1
lda #<txtAmpInstalled
ldx #>txtAmpInstalled
jmp SL_TextCommon
IA_IsLive: lda #<txtCantInstall
ldx #>txtCantInstall
jsr SL_TextCommon
lda #ACTI_FIRSTPLRBULLET
ldy #ACTI_LASTPLRBULLET
jsr GetFreeActor
bcc IA_NoEffect
tya
tax
lda lvlObjX+$0e
sta actXH,x
lda lvlObjY+$0e
and #$7f
sta actYH,x
lda #$80
sta actXL,x
lda #$40
sta actYL,x
lda #ACT_EMP
sta actT,x
jsr InitActor
lda #COLOR_FLICKER
sta actFlash,x
lda #8
sta actTime,x
lda #0
sta actBulletDmgMod-ACTI_FIRSTPLRBULLET,x
jsr NoInterpolation
IA_NoEffect: ldx #ACTI_PLAYER
lda #DMG_PISTOL+NOARMOR
jmp DamageSelf
IA_NotOpen: rts
; Laser effect continuous script routine
;
; Parameters: -
; Returns: -
; Modifies: various
RunLaser: lda #0
sta scrollSX ;Prevent scrolling by player position
inc laserTime
lda laserTime
cmp #80
bcc RL_Animate
beq RL_Explode
cmp #110
bcs RL_Finish
rts
RL_Animate: and #$01
tay
lda laserColorTbl,y
sta Irq1_Bg3+1
tya
bne RL_NoSound
lda #SFX_DAMAGE
jmp PlaySfx
RL_NoSound: jsr Random
pha
and #$01
sta shakeScreen
pla
cmp #$80
bcs RL_NoNewExplosion
jsr GetAnyFreeActor
bcc RL_NoNewExplosion
tya
tax
lda lvlObjX+$2b
sta actXH,x
lda lvlObjY+$2b
and #$7f
sta actYH,x
jsr Random
and #$7f
clc
adc #$40
sta actXL,x
jsr Random
and #$3f
sta actYL,x
lda #ACT_EXPLOSION
sta actT,x
jsr InitActor
RL_NoNewExplosion:
rts
RL_Explode: ldy #$0f
jsr ToggleObject
ldy #$2b
jsr ToggleObject
jsr AddQuestScore
lda #SFX_EXPLOSION
jmp PlaySfx
RL_Finish: jsr StopScript
jsr SetMenuMode ;X=0 on return
jmp CenterPlayer
; Switch generator script routine
;
; Parameters: -
; Returns: -
; Modifies: various
SwitchGenerator:lda #PLOT_GENERATOR
jsr GetPlotBit
bne SG_AlreadyOn
lda #PLOT_GENERATOR
jsr SetPlotBit
jsr AddQuestScore
lda #<txtGeneratorOn
ldx #>txtGeneratorOn
ldy #REQUIREMENT_TEXT_DURATION
jmp PrintPanelText
SL_Broken:
SG_AlreadyOn: rts
; Switch laser script routine
;
; Parameters: -
; Returns: -
; Modifies: various
SwitchLaser: lda #PLOT_GENERATOR
jsr GetPlotBit
beq SL_NoPower
lda lvlObjB+$2b ;Wall already opened?
bmi SL_Broken
ldy #$0f
jsr ToggleObject
lda #PLOT_AMPINSTALLED
jsr GetPlotBit
bne SL_IsAmplified
rts
SL_NoPower: lda #<txtNoPower
ldx #>txtNoPower
SL_TextCommon: ldy #REQUIREMENT_TEXT_DURATION
jmp PrintPanelText
SL_IsAmplified: lda #$00
sta laserTime
lda limitR
sec
sbc #10
sta mapX
lda #0
sta blockX
jsr RedrawScreen
ldx #MENU_INTERACTION
jsr SetMenuMode
lda #<EP_RUNLASER
ldx #>EP_RUNLASER
jmp SetScript
; Generator (screen shake) move routine
;
; Parameters: X actor number
; Returns: -
; Modifies: various
MoveGenerator: lda #PLOT_GENERATOR
jsr GetPlotBit
beq MG_NotOn
inc actFd,x
lda actFd,x
and #$01
sta shakeScreen
inc actTime,x
lda actTime,x
cmp #$03
bcc MG_NoSound
lda #SFX_GENERATOR
jsr PlaySfx
lda #$00
sta actTime,x
MG_NoSound:
MG_NotOn: rts
; Variables
laserTime: dc.b 0
; Tables
laserColorTbl: dc.b $0c,$0e
; Messages
txtGeneratorOn: dc.b "GENERATOR ON",0
txtNoPower: dc.b "NO POWER",0
txtAmpInstalled:dc.b "AMPLIFIER INSTALLED",0
txtCantInstall: dc.b "TURN OFF TO INSTALL",0
checkscriptend