mist: on split screen cut off the pointer at the edge of screen

mist/draw_pointer.s

@@ -17,7 +17,8 @@ draw_pointer:
 	; see if inside special region
 	ldy	#LOCATION_SPECIAL_EXIT
 	lda	(LOCATION_STRUCT_L),Y
-	bmi	finger_not_special	; if $ff not special
+	cmp	#$ff
+	beq	finger_not_special	; if $ff not special
 	cmp	DIRECTION
 	bne	finger_not_special	; only special if facing right way
 

mist/generator_puzzle.s

@@ -8,7 +8,7 @@ open_gen_door:
 	sta	location35,Y
 
 	ldy	#LOCATION_NORTH_EXIT_DIR
-	lda	#(DIRECTION_N | DIRECTION_SPLIT)
+	lda	#(DIRECTION_N | DIRECTION_SPLIT | DIRECTION_ONLY_POINT)
 	sta	location35,Y
 
 	ldy	#LOCATION_NORTH_BG
@@ -22,3 +22,110 @@ open_gen_door:
 	rts
 
 
+button_lookup:
+.byte $10,$8,$4,$2,$1
+
+generator_button_press:
+
+	lda	SWITCH_TOP_ROW
+	ora	#$10
+	sta	SWITCH_TOP_ROW
+
+	sed			; use BCD mode
+	inc	GENERATOR_VOLTS
+	cld			; turn off BCD mode
+
+	rts
+
+
+generator_update_volts:
+
+	lda	DRAW_PAGE
+	clc
+	adc	#$6
+	sta	volt_ones_smc+2
+	sta	volt_tens_smc+2
+
+	lda	GENERATOR_VOLTS
+	and	#$f
+	clc
+	adc	#$b0
+volt_ones_smc:
+	sta	$6d0+14			; 14,21
+
+	lda	GENERATOR_VOLTS
+	lsr
+	lsr
+	lsr
+	lsr
+	and	#$f
+	clc
+	adc	#$b0
+volt_tens_smc:
+	sta	$6d0+13			; 13,21
+
+
+
+	rts
+
+
+generator_draw_buttons:
+
+	ldx	#0
+	clc
+	lda	DRAW_PAGE
+	adc	#$4
+	sta	top_button_draw_smc+2
+	adc	#$1
+	sta	bottom_button_draw_smc+2
+	lda	#$d0+25
+	sta	top_button_draw_smc+1
+	adc	#$1
+	sta	bottom_button_draw_smc+1
+
+draw_buttons_loop:
+
+	; top button
+
+	lda	SWITCH_TOP_ROW
+	and	button_lookup,X
+	beq	top_button_off
+
+top_button_on:
+	ldy	#$95
+	bne	top_button_draw_smc
+
+top_button_off:
+	ldy	#$35
+
+top_button_draw_smc:
+	sty	$4d0+25
+
+	inc	top_button_draw_smc+1
+	inc	top_button_draw_smc+1
+
+	; bottom button
+
+	lda	SWITCH_BOTTOM_ROW
+	and	button_lookup,X
+	beq	bottom_button_off
+
+bottom_button_on:
+	ldy	#$93
+	bne	bottom_button_draw_smc
+
+bottom_button_off:
+	ldy	#$13
+
+bottom_button_draw_smc:
+	sty	$5d0+26
+
+	inc	bottom_button_draw_smc+1
+	inc	bottom_button_draw_smc+1
+
+	inx
+	cpx	#5
+	bne	draw_buttons_loop
+
+	rts
+

mist/gr_putsprite_crop.s

@@ -42,6 +42,8 @@ put_sprite_crop_loop:
 	bne	crop_increment_y
 
 put_sprite_crop_pos:
+
+psc_smc1:
 	cpy	#48			; bge if >= 48, done sprite
 	bcs	crop_sprite_done
 
@@ -222,6 +224,7 @@ put_spritefc_loop:
 	ldy	TEMPY							; 3
 
 	bmi	fcrop_increment_y	; if < 0, skip to next
+psc_smc2:
 	cpy	#48			; bge if >= 48, done sprite
 	bcs	fcrop_sprite_done
 

mist/keyboard.s

@@ -121,10 +121,24 @@ change_direction:
 	; load background
 	lda	DIRECTION
 	bpl	no_split
+
+	; split text/graphics
 	bit	TEXTGR
+
+	; also change sprite cutoff
+	ldx	#40
+	stx	psc_smc1+1
+	stx	psc_smc2+1
+
 	jmp	done_split
 no_split:
 	bit	FULLGR
+
+	; also change sprite cutoff
+	ldx	#40
+	stx	psc_smc1+1
+	stx	psc_smc2+1
+
 done_split:
 	and	#$f			; mask off special flags
 	asl

mist/leveldata_island.inc

@@ -710,8 +710,10 @@ location36:
 	.word	$0000			; east bg
 	.word	$0000			; west bg
 	.byte	BG_NORTH | BG_SOUTH
-	.byte	$ff	; DIRECTION_N|DIRECTION_SPLIT|DIRECTION_ONLY_POINT
-
+	.byte	DIRECTION_N|DIRECTION_SPLIT|DIRECTION_ONLY_POINT
+	.byte	24,36		; special x
+	.byte	34,40		; special y
+	.word	generator_button_press-1	; special function