ootw: add laser

ootw/alien.s

@@ -54,6 +54,8 @@ move_alien:
 	beq	move_alien_running
 	cmp	#A_YELLING
 	beq	move_alien_yelling
+	cmp	#A_SHOOTING_UP
+	beq	move_alien_yelling
 done_move_alien:
 	rts
 
@@ -120,6 +122,7 @@ astate_table_lo:
 	.byte <alien_crouching	; 03
 	.byte <alien_turning	; 04
 	.byte <alien_yelling	; 05
+	.byte <alien_shooting_up; 06
 
 astate_table_hi:
 	.byte >alien_standing	; 00
@@ -128,6 +131,7 @@ astate_table_hi:
 	.byte >alien_crouching	; 03
 	.byte >alien_turning	; 04
 	.byte >alien_yelling	; 05
+	.byte >alien_shooting_up; 06
 
 ; Urgh, make sure this doesn't end up at $FF or you hit the
 ;	NMOS 6502 bug
@@ -298,7 +302,12 @@ alien_draw_turning:
 alien_yelling:
 	lda	alien_state+ALIEN_GAIT,X
 
-	and	#$c0
+	; 00
+	; 01
+	; 10
+	; 11
+
+	and	#$40
 	bne	alien_yelling_no_waving
 
 	lda	alien_state+ALIEN_GAIT,X
@@ -327,11 +336,18 @@ alien_yelling_no_waving:
 
 alien_shooting_up:
 	lda	alien_state+ALIEN_GAIT,X
-	and	#$10
+	and	#$30
+
+	;  000 000
+	;  010 000
+	;  100 000
+	;  110 000
 
 	lsr
 	lsr
-	and	#2
+	lsr
+
+	and	#6
 	tay
 
 	lda	alien_shoot_up_progression,Y
@@ -340,7 +356,16 @@ alien_shooting_up:
 	lda	alien_shoot_up_progression+1,Y
 	sta	INH
 
-	jmp	finally_draw_alien
+	cpy	#0
+
+	lda	alien_state+ALIEN_GAIT,X
+	and	#$3f
+	bne	finally_draw_alien
+
+	lda	#30
+	sta	SHOOTING
+
+;	bne	finally_draw_alien	; bra
 
 
 

ootw/ootw_c2.s

@@ -147,6 +147,7 @@ end_message:
 .include "gr_offsets_hl.s"
 .include "gr_run_sequence.s"
 .include "gr_overlay.s"
+.include "gr_vlin.s"
 .include "random16.s"
 .include "keyboard.s"
 

ootw/ootw_c2_cage.s

@@ -40,6 +40,7 @@ ootw_cage:
 	sta	CAGE_AMPLITUDE
 	sta	CAGE_OFFSET
 	sta	CAGE_GUARD
+	sta	SHOOTING
 
         bit     KEYRESET		; clear keypress
 
@@ -118,6 +119,33 @@ cage_amp_2:
 
 done_drawing_cage:
 
+	;======================
+	; draw laser
+	;======================
+
+	lda	SHOOTING
+	beq	done_draw_laser
+
+	lda	#$11
+	sta	COLOR
+	ldx	SHOOTING
+	stx	V2
+
+	lda	SHOOTING
+	sec
+	sbc	#20
+	bpl	laser_not_offscreen
+	lda	#0
+laser_not_offscreen:
+	tax
+	ldy	#21
+	jsr	vlin
+
+	dec	SHOOTING
+	dec	SHOOTING
+	dec	SHOOTING
+
+done_draw_laser:
 
 	;======================
 	; draw guard
@@ -179,6 +207,7 @@ patrolling_move:
 	lda	CAGE_AMPLITUDE
 	cmp	#2
 	beq	guard_yelling
+
 	cmp	#3
 	beq	guard_shooting
 
@@ -198,14 +227,12 @@ guard_shooting:
 
 	; guard shooting
 
-;	lda	alien0_x
+	lda	alien0_x
-;	cmp	#21
+	cmp	#21
-;	bne	guard_move_and_draw
+	bne	guard_move_and_draw
-
-;	lda	#A_SHOOTING_UP
-;	sta	alien0_state
-;	jmp	guard_move_and_draw
 
+	lda	#A_SHOOTING_UP
+	sta	alien0_state
 
 
 guard_move_and_draw:
@@ -345,27 +372,6 @@ no_move_cage_guard:
 	cmp	#$ff
 	beq	done_cage
 
-	; check if done this level
-;	cmp	#$2
-;	bne	not_to_right
-
-	; exit to right
-
-;	lda	#0
-;	sta	PHYSICIST_X
-;	sta	WHICH_CAVE
-
-;	jmp	ootw_cavern
-
-;not_to_right:
-;	cmp	#$1
-;	bne	not_done_pool
-
-;	lda	#37
-;	sta	PHYSICIST_X
-
-;	jmp	ootw_rope
-
 
 
 	; loop forever
@@ -625,7 +631,7 @@ changing_guard11_sprite:
 changing_guard12_sprite:
 	.byte	4,9
 	.byte	$22,$A2,$A2,$22
-	.byte	$72,$57,$75,$22
+	.byte	$72,$f7,$7f,$22
 	.byte	$77,$07,$00,$A2
 	.byte	$AA,$77,$00,$AA
 	.byte	$AA,$77,$10,$AA
@@ -637,7 +643,7 @@ changing_guard12_sprite:
 changing_guard13_sprite:
 	.byte	4,9
 	.byte	$22,$A2,$A2,$22
-	.byte	$72,$57,$75,$22
+	.byte	$72,$f7,$7f,$22
 	.byte	$77,$07,$00,$A2
 	.byte	$AA,$00,$77,$AA
 	.byte	$AA,$77,$10,$AA

ootw/zp.inc

@@ -168,7 +168,8 @@ PHYSICIST_STATE	= $EA
 
 
 BEFORE_SWING	=	$EB	; C1
-CART_OUT	=	$EB	; C2
+SHOOTING	=	$EB	; C2 cage
+CART_OUT	=	$EB	; C2 jail
 
 CUTFRAME	=	$EC
 DISP_PAGE	=	$ED	; ALL