uxn/examples/app.pattern.usm

( app/hex )

&Screen { width 2 height 2 pad 4 y 2 x 2 color 1 }
&Sprite { pad 8 x 2 y 2 addr 2 color 1 }
&Mouse  { x 2 y 2 state 1 chord 1 }

&Point2d { x 2 y 2 }
&Rect2d  { x1 2 y1 2 x2 2 y2 2 }
&Point   { x 1 y 1 }
&Editor  { x1 2 y1 2 }

;pixel Point
;window Rect2d
;mouse Point2d
;editor Editor
;rect Rect2d

;color 1

|0100 @RESET
	
	#0030 =window.x1 #0030 =window.y1 #0090 =window.x2 #00a0 =window.y2

	#0040 =editor.x1 #0040 =editor.y

	#0040 #0040 #01 ,draw-editor JSR

BRK

|0200 @FRAME 
	
	,no-click ~dev/mouse.state #00 EQU JMP? POP2

		( load ) ,pattern ~dev/mouse.y ~editor.y1 SUB2 #0008 DIV2 ADD2 LDR
		( mask ) #01 #07 ~dev/mouse.x ~editor.x1 SUB2 #0008 DIV2 SWP POP SUB ROL 
		XOR
		( save ) ,pattern ~dev/mouse.y ~editor.y1 SUB2 #0008 DIV2 ADD2 STR

		,redraw JSR

	@no-click

	,draw-cursor JSR

BRK 

@redraw
		
	#0000 #0000 ~dev/screen.width ~dev/screen.height #03 ,pattern ,tile-rect JSR

	~window.x1 #0001 ADD2 ~window.y1 ~window.x2 #0004 ADD2 ~window.y2 #0004 ADD2 #00 ,fill-rect JSR
	~window.x1 ~window.y1 #0001 ADD2 ~window.x2 #0001 ADD2 ~window.y2 #0004 ADD2 #00 ,fill-rect JSR
	~window.x1 #0001 SUB2 ~window.y1 #0001 SUB2 ~window.x2 ~window.y2 #00 ,line-rect JSR
	~window.x1 #0002 SUB2 ~window.y1 #0002 SUB2 ~window.x2 #0001 ADD2 ~window.y2 #0001 ADD2 #02 ,line-rect JSR
	~window.x1 ~window.y1 ~window.x2 ~window.y2 #00 ,fill-rect JSR

	~editor.x1 =dev/sprite.x
	~editor.y1 =dev/sprite.y
	,pattern =dev/sprite.addr

	#02 =color

	#00 =pixel.y
	@redraw-ver
		#00 =pixel.x
		~editor.x1 =dev/sprite.x
		@redraw-hor

			( get bit )
			,cell0_icn #00
			,pattern #00 ~pixel.y ADD2 LDR #07 ~pixel.x SUB ROR #01 AND ( get bit )
			#0008 MUL2 ADD2 =dev/sprite.addr ( add *8 )

			( draw ) ~color =dev/sprite.color
			( incr ) ~dev/sprite.x #0008 ADD2 =dev/sprite.x
			( incr ) ~pixel.x #01 ADD =pixel.x
			,redraw-hor ~dev/sprite.x ~editor.x1 #0040 ADD2 LTH2 JMP? POP2
		( incr ) ~dev/sprite.y #0008 ADD2 =dev/sprite.y
		( incr ) ~pixel.y #01 ADD =pixel.y
		,redraw-ver ~dev/sprite.y ~editor.y1 #0040 ADD2 LTH2 JMP? POP2

	,pattern =dev/sprite.addr
	~dev/sprite.y #0040 SUB2 =dev/sprite.y
	~dev/sprite.x #0008 ADD2 =dev/sprite.x
	( draw ) #01 =dev/sprite.color

RTS

@fill-rect ( x1 y1 x2 y2 color )

	( load ) =color =rect.y2 =rect.x2 DUP2 =dev/screen.y =rect.y1 DUP2 =dev/screen.x =rect.x1
	@fill-rect-ver
		~rect.x1 =dev/screen.x
		@fill-rect-hor
			( draw ) ~color =dev/screen.color
			( incr ) ~dev/screen.x #0001 ADD2 =dev/screen.x
			,fill-rect-hor ~dev/screen.x ~rect.x2 LTH2 JMP? POP2
		( incr ) ~dev/screen.y #0001 ADD2 =dev/screen.y
		,fill-rect-ver ~dev/screen.y ~rect.y2 LTH2 JMP? POP2

RTS

@line-rect ( x1 y1 x2 y2 color )

	( load ) =color =rect.y2 =rect.x2 DUP2 =dev/screen.y =rect.y1 DUP2 =dev/screen.x =rect.x1
	@line-rect-hor
		( incr ) ~dev/screen.x #0001 ADD2 =dev/screen.x
		( draw ) ~rect.y1 =dev/screen.y ~color =dev/screen.color
		( draw ) ~rect.y2 =dev/screen.y ~color =dev/screen.color
		,line-rect-hor ~dev/screen.x ~rect.x2 LTH2 JMP? POP2
	~rect.y1 =dev/screen.y
	@line-rect-ver
		( draw ) ~rect.x1 =dev/screen.x ~color =dev/screen.color
		( draw ) ~rect.x2 =dev/screen.x ~color =dev/screen.color
		( incr ) ~dev/screen.y #0001 ADD2 =dev/screen.y
		,line-rect-ver ~dev/screen.y ~rect.y2 #0001 ADD2 LTH2 JMP? POP2

RTS

@tile-rect ( x1 y1 x2 y2 color addr )

	=dev/sprite.addr =color =rect.y2 =rect.x2 DUP2 =dev/sprite.y =rect.y1 DUP2 =dev/sprite.x =rect.x1

	@tile-rect-ver
		~rect.x1 =dev/sprite.x
		@tile-rect-hor
			( draw ) ~color =dev/sprite.color
			( incr ) ~dev/sprite.x #0008 ADD2 =dev/sprite.x
			,tile-rect-hor ~dev/sprite.x ~rect.x2 LTH2 JMP? POP2
		( incr ) ~dev/sprite.y #0008 ADD2 =dev/sprite.y
		,tile-rect-ver ~dev/sprite.y ~rect.y2 LTH2 JMP? POP2

RTS

@draw-editor

	 =color DUP2 =dev/sprite.y =editor.y1 DUP2 =dev/sprite.x =editor.x1

	,redraw JSR

	
RTS

@draw-cursor

	~mouse.x ~dev/mouse.x NEQU2
	~mouse.y ~dev/mouse.y NEQU2

	#0000 EQU2 RTS? ( Return if unchanged )

	( clear last cursor )
	#10 ,clear_icn ~mouse.x ~mouse.y ,draw-sprite JSR
	( record mouse positions )
	~dev/mouse.x =mouse.x ~dev/mouse.y =mouse.y
	#13 ,cursor_icn ~mouse.x ~mouse.y ,draw-sprite JSR

RTS

@draw-sprite

	=dev/sprite.y
	=dev/sprite.x
	=dev/sprite.addr
	=dev/sprite.color

RTS

@pattern     [ 0000 0000 0000 0000 ]
@clear_icn   [ 0000 0000 0000 0000 ]
@cursor_icn  [ 80c0 e0f0 f8e0 1000 ]
@cell0_icn   [ 7c82 8282 8282 7c00 ]
@cell1_icn   [ 7cfe fefe fefe 7c00 ]

|d000 @ERROR BRK 

|FF10 ;dev/screen Screen
|FF20 ;dev/sprite Sprite
|FF50 ;dev/mouse  Mouse

|FFF0 .RESET .FRAME .ERROR ( vectors )
|FFF8 [ 13fd 1ef3 1bf2 ] ( palette )