duke: work on adding items

duke/Makefile

@@ -43,6 +43,7 @@ DUKE:	duke.o
 
 duke.o:	duke.s zp.inc hardware.inc duke.s \
 	print_help.s gr_fast_clear.s quit_yn.s text_drawbox.s level_end.s \
+	enemies.s \
 	graphics/duke_graphics.inc \
 	maps/level1_map.lzsa \
 	status_bar.s draw_duke.s move_duke.s gr_putsprite_crop.s \

duke/TODO

@@ -1,12 +1,12 @@
 door
 ~~~~
 door animation
-sad noise wehn not have key
+sad noise when not have key
 key in inventory
 key pickup noise
-NO BONUS message
-back to title screen
-are you sure message on quit
+* NO BONUS message
+* back to title screen
+* are you sure message on quit
 
 
 sound:

duke/duke.s

@@ -42,11 +42,14 @@ duke_start:
 	sta	DUKE_XL
 	sta	SCORE1
 	sta	SCORE2
-	sta	INVENTORY
 	sta	DUKE_FALLING
 	sta	DUKE_SHOOTING
 	sta	KICK_UP_DUST
 
+	; FIXME: temporary
+	lda	#INV_RED_KEY
+	sta	INVENTORY
+
 	lda	#$10
 	sta	SCORE0
 
@@ -120,6 +123,10 @@ duke_loop:
 
 	jsr	draw_tilemap
 
+	; draw enemies
+
+	jsr	draw_enemies
+
 	; draw laser
 
 	jsr	draw_laser
@@ -138,6 +145,8 @@ duke_loop:
 
 	jsr	move_duke
 
+	jsr	move_enemies
+
 	jsr	move_laser
 
 
@@ -205,6 +214,7 @@ done_with_duke:
 	.include	"move_duke.s"
 	.include	"handle_laser.s"
 	.include	"draw_tilemap.s"
+	.include	"enemies.s"
 
 	.include	"sound_effects.s"
 

duke/enemies.s

@@ -0,0 +1,27 @@
+
+; enemies:
+;	out
+;	type
+;	X,Y
+;	tilemapx, tilemapy
+;	direction
+;	exploding
+
+	;=======================
+	; move enemies
+	;=======================
+move_enemies:
+	rts
+
+
+	;=======================
+	; draw enemies
+	;=======================
+draw_enemies:
+	rts
+
+
+
+
+
+

duke/status_bar.s

@@ -91,6 +91,26 @@ done_health:
 
 	rts
 
+	;===========================
+	; update items
+	;===========================
+
+update_items:
+
+	lda	INVENTORY
+
+	and	#INV_RED_KEY
+	beq	done_red_key
+
+	lda	#'R'&$3f
+	sta	status_string+33
+
+done_red_key:
+
+
+	rts
+
+
 
 
 	;===========================
@@ -102,6 +122,8 @@ update_status_bar:
 
 	jsr	update_health
 
+	jsr	update_items
+
 	rts
 
 	;===========================