keen: start at starting point on mars

it's currently broken though

games/keen/TODO

@@ -1,7 +1,25 @@
+title
+~~~~~
+	+ menu
+	+ load/save game
+	+ credits?
+
+mars map
+~~~~~~~~
+	+ enforce collision detection
+	+ proper smooth movement
+	+ transporters
+	+ start at starting point
+	+ show keens left at start, also when press ??
+	+ mark completed levels
+
+level1
+~~~~~~
+	+ fix so works again
+
 sound effects
 ~~~~~~~~~~~~~
-	+ shorten item pickup noise
-	+ game over noise if you quit too?
+	+ effect for transporter
 
 movement:
 ~~~~~~~~~
@@ -9,28 +27,27 @@ movement:
 
 enemies
 ~~~~~~~
-	+ allow stepping on head
 	+ disable when not on screen?
+	+ enemies besides yorps
+
+shooting
+~~~~~~~~
+	+ collision with enemies
+	+ shoot enemies
+
+pogo
+~~~~
+	+ implement
 
 
 lo-res version
 ~~~~~~~~~~~~~~
++ improve keyboard handling on Apple IIe
 + walk behind some sprites (columns on level1)
-+ fix keybindings/help menu
-+ better start/stop level music
-+ animate death
++ better animations
 + game over screen if out of lives
 
 hi-res version
 ~~~~~~~~~~~~~~
 +
 
-mars
-~~~~
-+ convert to full tilemap
-+ mark completed levels
-
-title
-~~~~~
-+ actual menu?
-

games/keen/maps/Makefile

@@ -5,7 +5,9 @@ ZX02 = ~/research/6502_compression/zx02.git/build/zx02 -f
 PNG2GR = ../../../utils/gr-utils/png2gr
 
 
-all:	level1_map.zx02 png2map mars_map.gr.zx02 mars_new.zx02
+all:	png2map \
+	level1_map.zx02 level2_map.zx02 \
+	mars_map.gr.zx02 mars_new.zx02
 
 ###
 
@@ -15,6 +17,15 @@ level1_map.zx02:	level1_map.inc
 level1_map.inc:	level1_map.png png2map
 	./png2map level1_map.png level1_map.inc
 
+###
+
+level2_map.zx02:	level2_map.inc
+	$(ZX02) level2_map.inc level2_map.zx02
+
+level2_map.inc:	level2_map.png png2map
+	./png2map level2_map.png level2_map.inc
+
+
 
 ###
 

games/keen/mars.s

@@ -15,8 +15,7 @@ TILE_COLS = 20		; define this elsewhere?
 mars_start:
 	;===================
 	; init screen
-;	jsr	TEXT
-;	jsr	HOME
+
 	bit	KEYRESET
 
 	bit	SET_GR
@@ -24,12 +23,14 @@ mars_start:
 	bit	LORES
 	bit	FULLGR
 
-	jsr	clear_all	; avoid grey stripes at load
+	lda	#0			; clear screens
+	sta	clear_all_color+1
+	jsr	clear_all
 
-	lda	KEENS
+	lda	KEENS			; check if out of lives
 	bpl	plenty_of_keens
 
-	jmp	return_to_title
+	jmp	return_to_title		; if none, game over
 
 plenty_of_keens:
 
@@ -38,25 +39,27 @@ plenty_of_keens:
 	;=====================
 
 	lda	#0
-	sta	ANIMATE_FRAME
 	sta	FRAMEL
 	sta	FRAMEH
 
 	lda	#4
 	sta	DRAW_PAGE
 
-	; see if returning and it game over
+	; see if returning and if game over
 
 	lda	LEVEL_OVER
 	cmp	#GAME_OVER
-	beq	return_to_title
 
+	bne	not_game_over
+	jmp	return_to_title
+
+not_game_over:
 
 	; TODO: set this in title, don't over-write
 
-	lda	#1
+	lda	#10
 	sta	MARS_TILEX
-	lda	#6
+	lda	#34
 	sta	MARS_TILEY
 
 	lda	#0
@@ -81,15 +84,42 @@ plenty_of_keens:
 	; FIXME: start values
 	;	center around MARS_TILEX, MARS_TILEY
 
-	lda	MARS_TILEX
+	lda	#0		; default at 0,0
 	sta	TILEMAP_X
-	lda	MARS_TILEY
 	sta	TILEMAP_Y
 
+	lda	MARS_TILEX
+	cmp	#10
+	bcc	mars_tilex_fine
+	sec
+	sbc	#10
+	sta	TILEMAP_X
+
+mars_tilex_fine:
+
+	lda	MARS_TILEY
+	cmp	#6
+	bcc	mars_tiley_fine
+	sec
+	sbc	#6
+	sta	TILEMAP_Y
+
+mars_tiley_fine:
+
 	jsr	copy_tilemap_subset
 
+	; make a copy in $c00 for fade-in purposes
 
+	lda	DRAW_PAGE	; necssary
+	pha
 
+	lda	#8
+	sta	DRAW_PAGE
+
+	jsr	draw_tilemap
+
+	pla
+	sta	DRAW_PAGE
 
 	lda	#1
 	sta	INITIAL_SOUND
@@ -129,14 +159,17 @@ mars_loop:
 	inc	FRAMEH
 no_frame_oflo:
 
-	lda	FRAMEL
-	lsr
-	lsr
-	lsr
-	and	#$7
-	tay
-	lda	star_colors,Y
-	sta	$F28			; 0,28
+
+	; rotate star colors
+
+;	lda	FRAMEL
+;	lsr
+;	lsr
+;	lsr
+;	and	#$7
+;	tay
+;	lda	star_colors,Y
+;	sta	$F28			; 0,28
 
 	;===========================
 	; check end of level
@@ -183,7 +216,11 @@ done_with_keen:
 
 	jsr	fade_out
 
-        lda     #LOAD_KEEN1
+	; set up proper level to load
+
+	clc
+	lda	CURRENT_LEVEL
+	adc	#2			; skip title and mars
         sta     WHICH_LOAD
 
 	rts			; exit back
@@ -371,48 +408,193 @@ done_parts:
 
 	;====================================
 	;====================================
-	; Mars action
+	; Mars action (enter pressed on map)
 	;====================================
 	;====================================
 	; if enter pressed on map
+
+	; off by one so the levels can fit in a two byte bitmap
+	;
+	; 	location		tilex,tiley	size
+	; 0	level1 (Border Town)		19,37	2
+	; 1	level2 (First Shrine)		22,28	1
+	; 2	level3 (Treasury)		 9,21	2
+	; 3	level4 (Capital City)		22,23	2
+	; 4	level5 (Pogo Shrine)		13,16	1
+	; 5 	level6 (Second Shrine)		16,11	1
+	; 6	level7 (Emerald City)		25,8	2
+	; 7	level8 (Ice City)		38,3	2
+	; 8	level9 (Third Shrine)		36,13	1
+	; 9	level10 (Ice Shrine 1)		43,5	1
+	; 10	level11 (Fourth Shrine)		52,16	1
+	; 11	level12 (Fifth Shrine)		36,21	1
+	; 12	level13 (Red Maze City)		44,24	2
+	; 13	level14 (Secret City)		60,28	2
+	; 14	level15 (Ice Shrine 2)		38,60	1
+	; 15	level16 (Vorticon Castle)	29,59	2
+	; 16	spaceship			10,37	1
+	; 17	left transporter		26,4	1
+	; 18	right transporter		34,3	1
+	; 19	secret transporter		60,35	1
+
+NUM_LOCATIONS = 20
+
 do_action:
 
-	lda	MARS_X
-	cmp	#15
-	bcc	do_nothing	; blt
+	ldx	#NUM_LOCATIONS
 
-	cmp	#20
-	bcc	maybe_ship
+do_action_loop:
 
-	cmp	#35
-	bcs	maybe_exit
+	;  mtx-ltx
+	;   -1   0    1    2
+	;  1234 1234 1234 1234
+	;  XYY   XY   YX   YYX
+	;   YY   YY   YY   YY
+
+check_location_x:
+	sec
+	lda	MARS_TILEX
+	sbc	location_x,X
+	bmi	check_location_nomatch
+
+	cmp	location_size,X
+	bcs	check_location_nomatch
+
+check_location_y:
+
+	;  mty-lty
+	;      -2  -1    0    1    2
+
+	; 0    X
+	; 1    X    X
+	; 2   YY   YX   YX   YY   YY
+	; 3   YY   YY   YX   YX   YY
+	; 4                   X    X
+	; 5                        X
+
+	clc
+	lda	MARS_TILEY
+	adc	#1
+	sec
+	sbc	location_y,X
+	bmi	check_location_nomatch
+
+	cmp	location_size,X
+
+	bcc	check_location_match
+
+;	bcs	check_location_nomatch
+
+
+
+check_location_nomatch:
+	dex
+	bpl	do_action_loop
 
-do_nothing:
-	; TODO: make sound?
 	rts
 
-maybe_ship:
+check_location_match:
+
+	; jump table
+
+	lda	location_actions_high,X
+	pha
+	lda	location_actions_low,X
+	pha
+
+	rts	; jump
 
 
-	lda	MARS_Y
-	cmp	#16
-	bcc	do_nothing
-	cmp	#24
-	bcs	do_nothing
+;	lda	MARS_X
+;	cmp	#15
+;	bcc	do_nothing	; blt
+;	cmp	#20
+;	bcc	maybe_ship
+;	cmp	#35
+;	bcs	maybe_exit
+;do_nothing:
+;	; TODO: make sound?
+;	rts
+;maybe_ship:
+;	lda	MARS_Y
+;	cmp	#16
+;	bcc	do_nothing
+;	cmp	#24
+;	bcs	do_nothing
+;	jmp	do_parts	; tail call
+;maybe_exit:
+;	inc	LEVEL_OVER
+;	rts
 
-	jmp	do_parts	; tail call
 
-maybe_exit:
+
+	;=====================================
+	;=====================================
+	; placeholder until action imlpemented
+	;=====================================
+	;=====================================
+dummy_action:
+	rts
+
+	;=====================================
+	;=====================================
+	; enter level
+	;=====================================
+	;=====================================
+	; level number is in X
+enter_level:
+
+	stx	CURRENT_LEVEL
 
 	inc	LEVEL_OVER
 
 	rts
 
 
+location_x:
+	.byte 19,22, 9,22,13,16,25,38
+	.byte 36,43,52,36,44,60,38,29
+	.byte 10,26,34,60
 
-star_colors:
-	.byte $05,$07,$07,$0f
-	.byte $0f,$07,$05,$0a
+location_y:
+	.byte 37,28,21,23,16,11, 8, 3
+	.byte 13, 5,16,21,24,28,60,59
+	.byte 37, 4, 3,35
+
+location_size:
+	.byte 2,1,2,2,1,1,2,2
+	.byte 1,1,1,1,2,2,1,2
+	.byte 1,1,1,1
+
+location_actions_low:
+	.byte <(enter_level-1),<(dummy_action-1)	; level1, level2
+	.byte <(dummy_action-1),<(dummy_action-1)
+	.byte <(dummy_action-1),<(dummy_action-1)
+	.byte <(dummy_action-1),<(dummy_action-1)
+	.byte <(dummy_action-1),<(dummy_action-1)
+	.byte <(dummy_action-1),<(dummy_action-1)
+	.byte <(dummy_action-1),<(dummy_action-1)
+	.byte <(dummy_action-1),<(dummy_action-1)
+	.byte <(do_parts-1),<(dummy_action-1)		; ship, l transport
+	.byte <(dummy_action-1),<(dummy_action-1)	; r trans, secret
+
+location_actions_high:
+	.byte >(enter_level-1),>(dummy_action-1)	; level1, level2
+	.byte >(dummy_action-1),>(dummy_action-1)
+	.byte >(dummy_action-1),>(dummy_action-1)
+	.byte >(dummy_action-1),>(dummy_action-1)
+	.byte >(dummy_action-1),>(dummy_action-1)
+	.byte >(dummy_action-1),>(dummy_action-1)
+	.byte >(dummy_action-1),>(dummy_action-1)
+	.byte >(dummy_action-1),>(dummy_action-1)
+	.byte >(do_parts-1),>(dummy_action-1)		; ship, l transport
+	.byte >(dummy_action-1),>(dummy_action-1)	; r trans, secret
+
+
+
+;star_colors:
+;	.byte $05,$07,$07,$0f
+;	.byte $0f,$07,$05,$0a
 
 
 

games/keen/zp.inc

@@ -143,6 +143,7 @@ MARS_TILEY		= $A3
 INITIAL_SOUND		= $A4
 PLAY_END_SOUND		= $A5
 APPLEII_MODEL		= $A6
+CURRENT_LEVEL		= $A7
 
 WHICH_SLOT	=	$DA
 JS_BUTTON_STATE	=	$DB