sb: more or less have logic in reasonable state

games/sb/TODO

@@ -1,14 +1,10 @@
 Strongbadzone:
 + Implement rest of audio
-+ Ball movement logic.  Is actually just 2D
-  -> Collision detect with head.  Decrement count, play sound
-  -> Collision detect with player
-+ Do the color mask (different blacks)
 + Animate side walls
   -> This is going to involve fancy memory management
 + Faster hgr copy?
 + Optimize sprite size
-+ Allow lowercase keyboard (see duck code)
++ Can't continually hold shield up
 
 Duck:
 + Implement throwing

games/sb/asplode.s

@@ -601,17 +601,24 @@ no_more_right:
 	jmp	main_loop
 
 shield_left:
+	lda	SHIELD_POSITION
+	bne	done_adjust_shield
 	lda	#SHIELD_UP_LEFT
 	bne	adjust_shield
 shield_center:
+	lda	SHIELD_POSITION
+	bne	done_adjust_shield
 	lda	#SHIELD_UP_CENTER
 	bne	adjust_shield
 shield_right:
+	lda	SHIELD_POSITION
+	bne	done_adjust_shield
 	lda	#SHIELD_UP_RIGHT
 adjust_shield:
 	sta	SHIELD_POSITION
-	lda	#5
+	lda	#4
 	sta	SHIELD_COUNT
+done_adjust_shield:
 	jmp	main_loop
 
 asplode_asplode:

games/sb/asplode_head.s

@@ -173,10 +173,13 @@ done_asplode_head:
 	lda	#0
 	sta	SHIELD_POSITION
 	sta	BULLET_Y
+	sta	SHIELD_COUNT
 
 	lda	#1
 	sta	BULLET_YDIR
 
+	bit	KEYRESET	; clear any keypresses during asplode
+
 	rts