keen: more or less have things fixed for 128x80 grid now

games/keen/draw_tilemap.s

@@ -203,9 +203,11 @@ tilemap_count_smc:
 
 done_tilemap_subset:
 
+	;==========================
 	; activate yorps
+	;==========================
 
-	ldx	NUM_ENEMIES
+	ldx	#NUM_ENEMIES
 	beq	done_yorps
 
 	clc

games/keen/level1.s

@@ -232,10 +232,7 @@ skip_end_sound:
 
 level1_gameover:
 
-	; mars plays this
-
-;	ldy	#SFX_GAMEOVERSND
-;	jsr	play_sfx
+	; mars plays the sound
 
 	lda	#GAME_OVER
 	sta	LEVEL_OVER
@@ -252,10 +249,6 @@ level1_levelover:
 	; includes
 	;==========================
 
-	; level graphics
-;level1_bg_zx02:
-;	.incbin	"graphics/level1_bg.gr.zx02"
-
 	.include	"text_print.s"
 	.include	"gr_offsets.s"
 	.include	"gr_fast_clear.s"

games/keen/level1_enemies.s

@@ -35,9 +35,14 @@ enemy_is_out:
 	lda	enemy_data_tiley,X
 	adc	#2				; point below feet
 
-	adc	#>big_tilemap
+	tay
+	lda	tilemap_lookup_high,Y
+;	adc	#>big_tilemap
 	sta	load_foot1_smc+2
 
+	lda	tilemap_lookup_low,Y
+	sta	load_foot1_smc+1
+
 	ldy	enemy_data_tilex,X
 load_foot1_smc:
 
@@ -128,9 +133,14 @@ enemy_facing_right:
 	clc
 	lda	enemy_data_tiley,X
 	adc	#1				; point to feet
+	tay
 
-	adc	#>big_tilemap
+;	adc	#>big_tilemap
+	lda	tilemap_lookup_high,Y
 	sta	load_right_foot_smc+2
+	lda	tilemap_lookup_low,Y
+	sta	load_right_foot_smc+1
+
 
 	ldy	enemy_data_tilex,X
 	iny	; to the right
@@ -182,8 +192,13 @@ enemy_facing_left:
 	lda	enemy_data_tiley,X
 	adc	#1				; point to feet
 
-	adc	#>big_tilemap
+	tay
+
+;	adc	#>big_tilemap
+	lda	tilemap_lookup_high,Y
 	sta	load_left_foot_smc+2
+	lda	tilemap_lookup_low,Y
+	sta	load_left_foot_smc+1
 
 	ldy	enemy_data_tilex,X
 	dey					; look to the left

games/keen/level1_items.s

@@ -13,13 +13,20 @@ check_items:
 	; if X==0, check TILEX and TILEX+1
 	; if X==1, check TILEX+1
 
-	clc
-	lda	KEEN_TILEY
-	adc	#>big_tilemap
+	ldx	KEEN_TILEY
+
+	lda	tilemap_lookup_high,X
 	sta	INH
-	lda	KEEN_TILEX
+	lda	tilemap_lookup_low,X
+	ora	KEEN_TILEX
 	sta	INL
 
+;	clc
+;	adc	#>big_tilemap
+;	sta	INH
+;	lda	KEEN_TILEX
+;	sta	INL
+
 	lda	KEEN_X
 	bne	check_head_tilex1
 
@@ -50,7 +57,26 @@ check_head_tilex1:
 	;========================
 	; check feet
 check_feet:
-	inc	INH			; point to next row
+;	inc	INH			; point to next row
+
+	lda	INL			; blurgh much longer
+	clc
+	adc	#$80
+	sta	INL
+	lda	#$0
+	adc	INH
+	sta	INH
+
+
+; won't work, maybe not faster
+;	lda	INL
+;	eor	#$80
+;	sta	INL
+;	asl
+;	adc	INH
+;	sta	INH
+
+
 	dec	INL			; restore tile pointer
 
 	lda	KEEN_X

games/keen/move_keen.s

@@ -180,12 +180,21 @@ keen_check_head:
 	sec
 	lda	KEEN_TILEY
 	sbc	#1
-	adc	#>big_tilemap
+
+	tay
+	lda	tilemap_lookup_high,Y
 	sta	INH
-	lda	#0
+	lda	tilemap_lookup_low,Y
 	sta	INL
+
+;	adc	#>big_tilemap
+;	sta	INH
+;	lda	#0
+;	sta	INL
+
 	ldy	KEEN_TILEX
 
+	lda	KEEN_X
 	bne	collide_head_r
 
 collide_head_l:
@@ -223,12 +232,20 @@ collide_left_right:
 
 	clc
 	lda	KEEN_TILEY
-	adc	#1
-	adc	#>big_tilemap
+	adc	#1				; look at feet
+
+	tay
+	lda	tilemap_lookup_high,Y
 	sta	INH
-	lda	KEEN_TILEX
+	lda	tilemap_lookup_low,Y
+	ora	KEEN_TILEX
 	sta	INL
 
+;	adc	#>big_tilemap
+;	sta	INH
+;	lda	KEEN_TILEX
+;	sta	INL
+
 	lda	KEEN_DIRECTION
 	beq	done_keen_collide	; can this happen?
 
@@ -365,9 +382,14 @@ check_falling:
 	lda	KEEN_TILEY
 	adc	#2				; point below feet
 
-	adc	#>big_tilemap
+	tax
+	lda	tilemap_lookup_high,X
+
+;	adc	#>big_tilemap
 	sta	INH
-	lda	#0
+
+	lda	tilemap_lookup_low,X
+;	lda	#0
 	sta	INL
 
 	ldy	KEEN_TILEX