uxn/examples/dev.ctrl.usm

( dev/ctrl )

&Screen     { width 2 height 2 pad 4 y 2 x 2 color 1 }
&Sprite     { pad 8 x 2 y 2 addr 2 color 1 }
&Controller { buttons 1 }

;slime-color 1

|0100 @RESET 

	( set origin )
	~dev/screen.width #0002 DIV2 =dev/sprite.x 
	~dev/screen.height #0002 DIV2 =dev/sprite.y
	,default_icn =dev/sprite.addr
	#11 =dev/sprite.color
	#0a =slime-color

BRK

|c000 @FRAME 
	
	#0a =slime-color
	( hold ctrl key to change slime color )
	,no-ctrl ~dev/ctrl.buttons #0f AND #01 NEQ JMP? POP2
		#05 =slime-color
	@no-ctrl
	( hold alt key to change slime color )
	,no-alt ~dev/ctrl.buttons #0f AND #02 NEQ JMP? POP2
		#0f =slime-color
	@no-alt
	( detect movement )
	,no-up ~dev/ctrl.buttons #f0 AND #10 NEQ JMP? POP2
		( clear ) #10 =dev/sprite.color
		( move ) ~dev/sprite.y #0001 SUB2 =dev/sprite.y ,up_icn =dev/sprite.addr
		( draw ) ,redraw JSR BRK
	@no-up
	,no-down ~dev/ctrl.buttons #f0 AND #20 NEQ JMP? POP2
		( clear ) #10 =dev/sprite.color
		( move ) ~dev/sprite.y #0001 ADD2 =dev/sprite.y ,down_icn =dev/sprite.addr
		( draw ) ,redraw JSR BRK
	@no-down
	,no-left ~dev/ctrl.buttons #f0 AND #40 NEQ JMP? POP2
		( clear ) #10 =dev/sprite.color
		( move ) ~dev/sprite.x #0001 SUB2 =dev/sprite.x ,left_icn =dev/sprite.addr
		( draw ) ,redraw JSR BRK
	@no-left
	,no-right ~dev/ctrl.buttons #f0 AND #80 NEQ JMP? POP2
		( clear ) #10 =dev/sprite.color
		( move ) ~dev/sprite.x #0001 ADD2 =dev/sprite.x ,right_icn =dev/sprite.addr
		( draw ) ,redraw JSR BRK
	@no-right

BRK

@redraw
	
	( draw face )
	#11 =dev/sprite.color
	( draw slime )
	,slime_icn =dev/sprite.addr
	~slime-color =dev/sprite.color

RTS

@default_icn [ 3c7e ffdb ffe7 7e3c ]
@up_icn      [ 2466 e7db ffff 7e3c ]
@down_icn    [ 3c7e ffff dbe7 6624 ]
@left_icn    [ 3c7e ef1f 1fef 7e3c ]
@right_icn   [ 3c7e f7f8 f8f7 7e3c ]
@slime_icn   [ 0000 183c 3c18 0000 ]

|d000 @ERROR BRK 

|FF10 ;dev/screen Screen
|FF20 ;dev/sprite Sprite
|FF30 ;dev/ctrl   Controller

|FFF0 .RESET .FRAME .ERROR ( vectors )
|FFF8 [ 0daf 02ff 035f ] ( palette )