mirror of
https://git.sr.ht/~rabbits/uxn
synced 2024-11-12 17:25:05 +00:00
99 lines
2.4 KiB
Text
99 lines
2.4 KiB
Text
( draw routines )
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%RTN { JMP2r }
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%RTN? { #00 EQU #02 JNZ STH2r JMP2 }
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;color { byte 1 }
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;pointer { x 2 y 2 sprite 2 }
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;rect { x1 2 y1 2 x2 2 y2 2 }
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;r1 { x1 2 y1 2 x2 2 y2 2 }
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;r2 { x1 2 y1 2 x2 2 y2 2 }
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;r3 { x1 2 y1 2 x2 2 y2 2 }
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|0110 ;Screen { width 2 height 2 pad 4 x 2 y 2 color 1 }
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|0120 ;Sprite { pad 8 x 2 y 2 addr 2 color 1 }
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|0150 ;Mouse { x 2 y 2 state 1 chord 1 }
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|01F0 .RESET .FRAME .ERROR ( vectors )
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|01F8 [ 0f0f 0fff 0ff0 ] ( palette )
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|0200 @RESET
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#0020 #0030 #0060 #0060 =r1.y2 =r1.x2 =r1.y1 =r1.x1
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#0058 #0050 #0090 #0080 =r2.y2 =r2.x2 =r2.y1 =r2.x1
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#0048 #0048 #0080 #0098 =r3.y2 =r3.x2 =r3.y1 =r3.x1
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BRK
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@FRAME
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,pointer_icn =pointer.sprite
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#01 =color
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( matrix comparison )
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~Mouse.x ~r1.x1 GTH2 ~Mouse.x ~r1.x2 LTH2 #0101 EQU2
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~Mouse.y ~r1.y1 GTH2 ~Mouse.y ~r1.y2 LTH2 #0101 EQU2
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#0101 NEQ2 ^$draw1 JNZ #02 =color ,hand_icn =pointer.sprite
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$draw1 ~r1.x1 ~r1.y1 ~r1.x2 ~r1.y2 ~color ,line-rect JSR2
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#01 =color
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( 2-step comparison )
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~Mouse.x ~r2.x1 GTH2 ~Mouse.x ~r2.x2 LTH2 #0101 NEQ2 ^$draw2 JNZ
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~Mouse.y ~r2.y1 GTH2 ~Mouse.y ~r2.y2 LTH2 #0101 NEQ2 ^$draw2 JNZ
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#03 =color ,hand_icn =pointer.sprite
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$draw2 ~r2.x1 ~r2.y1 ~r2.x2 ~r2.y2 ~color ,line-rect JSR2
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#01 =color
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( 4-step comparison )
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~Mouse.x ~r3.x1 LTH2 ^$draw3 JNZ
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~Mouse.x ~r3.x2 GTH2 ^$draw3 JNZ
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~Mouse.y ~r3.y1 LTH2 ^$draw3 JNZ
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~Mouse.y ~r3.y2 GTH2 ^$draw3 JNZ
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#02 =color ,hand_icn =pointer.sprite
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$draw3 ~r3.x1 ~r3.y1 ~r3.x2 ~r3.y2 ~color ,line-rect JSR2
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,draw-cursor JSR2
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BRK
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@draw-cursor
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( clear last cursor )
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,clear_icn =Sprite.addr
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~pointer.x =Sprite.x
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~pointer.y =Sprite.y
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#10 =Sprite.color
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( record pointer positions )
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~Mouse.x =pointer.x ~Mouse.y =pointer.y
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( draw new cursor )
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~pointer.sprite =Sprite.addr
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~pointer.x =Sprite.x
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~pointer.y =Sprite.y
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#11 =Sprite.color
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RTN
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@line-rect ( x1 y1 x2 y2 color )
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( load ) =color =rect.y2 =rect.x2 DUP2 =Screen.y =rect.y1 DUP2 =Screen.x =rect.x1
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$hor
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( incr ) ~Screen.x #0001 ADD2 =Screen.x
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( draw ) ~rect.y1 =Screen.y ~color =Screen.color
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( draw ) ~rect.y2 =Screen.y ~color =Screen.color
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~Screen.x ~rect.x2 LTH2 ^$hor JNZ
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~rect.y1 =Screen.y
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$ver
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( draw ) ~rect.x1 =Screen.x ~color =Screen.color
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( draw ) ~rect.x2 =Screen.x ~color =Screen.color
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( incr ) ~Screen.y #0001 ADD2 =Screen.y
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~Screen.y ~rect.y2 #0001 ADD2 LTH2 ^$ver JNZ
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RTN
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@clear_icn [ 0000 0000 0000 0000 ]
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@pointer_icn [ 80c0 e0f0 f8e0 1000 ]
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@hand_icn [ 4040 4070 f8f8 f870 ]
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@ERROR BRK
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