( Bifurcan )

|00 @System     [ &vector $2 &pad      $6 &r      $2 &g     $2 &b      $2 ]
|20 @Screen     [ &vector $2 &width    $2 &height $2 &pad   $2 &x      $2 &y      $2 &addr $2 &pixel $1 &sprite $1 ]
|90 @Mouse      [ &vector $2 &x        $2 &y      $2 &state $1 &wheel  $1 ]
|c0 @DateTime   [ &year   $2 &month    $1 &day    $1 &hour  $1 &minute $1 &second $1 &dotw $1 &doty $2 &isdst $1 ]
|80 @Controller [ &vector $2 &button   $1 &key    $1 ] 

|0000

@last  $1
@style $1
@pointer [ &x $2 &y $2 ]
@center  [ &x $2 &y $2 ]

|0100 ( -> )

	( theme ) 
	#0f3a .System/r DEO2 
	#0fda .System/g DEO2 
	#0faa .System/b DEO2
	( vectors )
	;on-frame .Screen/vector DEO2
	;on-mouse .Mouse/vector DEO2
	;on-button .Controller/vector DEO2
	( find center )
	.Screen/width DEI2 #01 SFT2 .center/x STZ2
	.Screen/height DEI2 #01 SFT2 .center/y STZ2
	( background ) 
	;tiles ;cover-pattern JSR2
	;redraw JSR2

BRK

@on-frame ( -> )

	( only draw once per second )
	.DateTime/second DEI .last LDZ NEQ JMP [ BRK ]
	.DateTime/second DEI .last STZ
	;redraw JSR2

BRK

@on-mouse ( -> )

	;draw-cursor JSR2

	.Mouse/state DEI #00 NEQ JMP BRK
	,select JSR

BRK 

@on-button ( -> )
	
	.Controller/button DEI #00 NEQ JMP BRK
	,select JSR

BRK

@select ( -- )

	( incr ) .style LDZ INC #03 ;mod JSR2 .style STZ
	( bg ) ;tiles [ #00 .style LDZ #40 SFT ] ADD2 ;cover-pattern JSR2
	( fg ) ;redraw JSR2
	( release ) #0000 .Mouse/state DEO .Controller/button DEO

JMP2r

@redraw ( -- )
	
	( hrs )
	[ .center/x LDZ2 #0018 SUB2 ] 
	[ .center/y LDZ2 #0048 SUB2 ] 
	.DateTime/hour DEI #0a DIV ;draw-number JSR2
	[ .center/x LDZ2 #0008 ADD2 ] 
	[ .center/y LDZ2 #0048 SUB2 ] 
	.DateTime/hour DEI #0a ;mod JSR2 ;draw-number JSR2
	( min )
	[ .center/x LDZ2 #0018 SUB2 ] 
	[ .center/y LDZ2 #0018 SUB2 ] 
	.DateTime/minute DEI #0a DIV ;draw-number JSR2
	[ .center/x LDZ2 #0008 ADD2 ] 
	[ .center/y LDZ2 #0018 SUB2 ] 
	.DateTime/minute DEI #0a ;mod JSR2 ;draw-number JSR2
	( sec )
	[ .center/x LDZ2 #0018 SUB2 ] 
	[ .center/y LDZ2 #0018 ADD2 ]
	.DateTime/second DEI #0a DIV 
	;draw-number JSR2
	[ .center/x LDZ2 #0008 ADD2 ] 
	[ .center/y LDZ2 #0018 ADD2 ] 
	.DateTime/second DEI #0a ;mod JSR2 
	;draw-number JSR2

JMP2r

@draw-number ( x* y* n -- )
	
	,&digit STR ,&y STR2 ,&x STR2
	#0f00 
	&loop
		( save-x ) DUP #03 ;mod JSR2 #00 SWP #30 SFT2 [ LIT2 &x $2 ] ADD2 .Screen/x DEO2
		( save-y ) DUP #03 DIV #00 SWP #30 SFT2 [ LIT2 &y $2 ] ADD2 .Screen/y DEO2
		( get digit* ) DUP [ LIT &digit $1 ] DUP ADD #00 SWP ;digits ADD2 LDA2 
		( get bit ) ROT #0e SWP SUB SFT2 #0001 AND2 
		( set tile ) #30 SFT2 ;tiles ADD2 
		( set style ) .style LDZ #40 SFT #00 SWP ADD2
			.Screen/addr DEO2
		( draw ) #01 .Screen/sprite DEO
		INC GTHk ,&loop JCN
	POP2

JMP2r

@cover-pattern ( addr* -- )
	
	.Screen/addr DEO2
	.Screen/height DEI2 #03 SFT2 NIP ,&h STR
	.Screen/width DEI2 #03 SFT2 NIP ,&w STR
	[ LIT &h $1 ] #00
	&ver
		#00 OVR #30 SFT2 .Screen/y DEO2
		[ LIT &w $1 ] #00
		&hor
			#00 OVR #30 SFT2 .Screen/x DEO2
			#01 .Screen/sprite DEO
			INC GTHk ,&hor JCN
		POP2
		INC GTHk ,&ver JCN
	POP2

JMP2r

@draw-cursor ( -- )
	
	( clear last cursor )
	;cursor .Screen/addr DEO2 
	.pointer/x LDZ2 .Screen/x DEO2 
	.pointer/y LDZ2 .Screen/y DEO2 
	#40 .Screen/sprite DEO
	( record pointer positions )
	.Mouse/x DEI2 DUP2 .pointer/x STZ2 .Screen/x DEO2 
	.Mouse/y DEI2 DUP2 .pointer/y STZ2 .Screen/y DEO2 
	( colorize on state )
	#41 [ .Mouse/state DEI #00 NEQ ] ADD .Screen/sprite DEO

JMP2r

@mod DIVk MUL SUB JMP2r

@cursor 
	80c0 e0f0 f8e0 1000

@digits
	7b6f 2492 73e7 73cf 
	5bc9 79cf 49ef 7249 
	7bef 7bc9

@tiles
	0102 0408 1020 4080
	8040 2010 0804 0201 
	0718 2040 4080 8080
	0101 0102 0204 18e0
	0808 0810 e304 0808
	0808 0804 e310 0808