uxn

commit bf0051394445a64e09d2b854cf4eda486cb94ea2
parent 405d2ca9359fc88c0f755bf6c7189309f60fb558
Author: neauoire <aliceffekt@gmail.com>
Date:   Wed, 24 Feb 2021 16:40:42 -0800

Implemented basic key example

Diffstat:
M
emulator.c
 | 
24
++++++++++++++++++++++++
A
examples/devkey.usm
 | 
233
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

2 files changed, 257 insertions(+), 0 deletions(-)
diff --git a/emulator.c b/emulator.c
@@ -286,6 +286,20 @@ domouse(SDL_Event *event)
 }
 
 void
+dotext(SDL_Event *event)
+{
+	int i;
+	if(SDL_GetModState() & KMOD_LCTRL || SDL_GetModState() & KMOD_RCTRL)
+		return;
+	for(i = 0; i < SDL_TEXTINPUTEVENT_TEXT_SIZE; ++i) {
+		char c = event->text.text[i];
+		if(c < ' ' || c > '~')
+			break;
+		devkey->mem[0] = c;
+	}
+}
+
+void
 doctrl(SDL_Event *event, int z)
 {
 	Uint8 flag = 0x00;
@@ -303,6 +317,14 @@ doctrl(SDL_Event *event, int z)
 	case SDLK_LEFT: flag = 0x40; break;
 	case SDLK_RIGHT: flag = 0x80; break;
 	}
+	if(z) {
+		/* special key controls */
+		switch(event->key.keysym.sym) {
+		case SDLK_BACKSPACE: devkey->mem[0] = 0x08; break;
+		case SDLK_RETURN: devkey->mem[0] = 0x0d; break;
+		}
+	}
+
 	setflag(&devcontroller->mem[0], flag, z);
 }
 
@@ -393,12 +415,14 @@ start(Uxn *u)
 		if(tick < ticknext)
 			SDL_Delay(ticknext - tick);
 		ticknext = tick + (1000 / FPS);
+		devkey->mem[0] = 0x00; /* TODO: cleanup */
 		while(SDL_PollEvent(&event) != 0) {
 			switch(event.type) {
 			case SDL_QUIT: quit(); break;
 			case SDL_MOUSEBUTTONUP:
 			case SDL_MOUSEBUTTONDOWN:
 			case SDL_MOUSEMOTION: domouse(&event); break;
+			case SDL_TEXTINPUT: dotext(&event); break;
 			case SDL_KEYDOWN: doctrl(&event, 1); break;
 			case SDL_KEYUP: doctrl(&event, 0); break;
 			case SDL_WINDOWEVENT:
diff --git a/examples/devkey.usm b/examples/devkey.usm
@@ -0,0 +1,233 @@
+( mouse )
+
+:dev/r fff8 ( std read port )
+:dev/w fff9 ( std write port )
+
+&Point2d { x 2 y 2 }
+&Window2d { x1 2 y1 2 x2 2 y2 2 }
+
+;pos Point2d
+;mouse Point2d
+;scenter Point2d
+;win Window2d
+
+( drawing ) ;color 1 ;x1 2 ;x2 2 ;y1 2 ;y2 2 ;i 2
+;state 1 ;textlen 2
+
+|0100 @RESET 
+
+	#01 =dev/r ( read screen for size )
+	#02 =dev/w ( write to screen )
+
+	#08 =color
+	,paint-pattern JSR
+
+	#01 =dev/w ( write to screen )
+
+	#00 IOR2 #0002 DIV2 =scenter.x
+	#02 IOR2 #0002 DIV2 =scenter.y
+
+	~scenter.x #0050 SUB2 
+	~scenter.y #0030 SUB2 
+	~scenter.x #0050 ADD2 
+	~scenter.y #0030 ADD2 ,paint-window JSR
+
+	#05 =dev/r ( set dev/read mouse )
+	#02 =dev/w ( set dev/write to sprite ) 
+
+	#09 =color
+
+BRK
+
+|c000 @FRAME
+
+	( clear last cursor )
+	#10 ,clear_icn ~mouse.x ~mouse.y ,draw-sprite JSR
+	( record mouse positions )
+	#05 =dev/r ( set dev/read mouse )
+	#00 IOR2 =mouse.x 
+	#02 IOR2 =mouse.y
+	#11 =state
+
+	#04 IOR #01 NEQ ,no-touch ROT JMP? POP2
+		#13 =state
+	@no-touch
+
+	( clear window )
+
+	#04 =dev/r ( set dev/read mouse )
+	#00 IOR #00 EQU ,key-end ROT JMP? POP2
+
+		( is backspace )
+		#00 IOR #08 NEQ ,no-key-back ROT JMP? POP2
+			#00 ,body ~textlen ADD2 STR
+			~textlen #0001 SUB2 =textlen
+			,redraw-body-label JSR
+			,key-end JMP
+		@no-key-back
+
+		~textlen #0001 ADD2 =textlen
+		#00 IOR ,body ~textlen ADD2 STR
+		,redraw-body-label JSR
+	@key-end
+
+	( draw mouse )
+	~state ,cursor_icn ~mouse.x ~mouse.y ,draw-sprite JSR
+
+BRK
+
+@redraw-body-label
+
+	#02 =color
+	#01 =dev/w ( write to screen )
+	~win.x1 #0004 ADD2 ~win.y1 #0004 ADD2 ~win.x2 #0010 SUB2 ~win.y2 #0010 SUB2 ,fill-rect JSR
+	#02 =dev/w ( write to sprite )
+	#06 =color
+	,body ~win.x1 #0018 ADD2 ~scenter.y ,draw-label JSR
+
+RTS
+
+@paint-pattern ( nil )
+
+	#01 =dev/r ( read screen for size )
+	#02 =dev/w ( write to sprite )
+
+	#0000 
+	@paint-pattern-loop-hor
+	#0000
+	@paint-pattern-loop
+		( draw ) OVR2 IOW2 DUP2 IOW2 ,pattern IOW2 ~color IOW
+		( incr ) #0008 ADD2 DUP2
+		#00 IOR2 LTH2 ,paint-pattern-loop ROT JMP? POP2
+		POP2
+	( incr ) #0008 ADD2 DUP2
+	#02 IOR2 LTH2 ,paint-pattern-loop-hor ROT JMP? POP2
+	POP2
+
+RTS
+
+@paint-window ( name wx1 wy1 wx2 wy2 )
+
+	=win.y2 =win.x2 =win.y1 =win.x1
+
+	( Draw shadow )
+	#01 =color
+	~win.x2 ~win.y1 #0003 ADD2 ~win.x2 #0003 ADD2 ~win.y2 #0003 ADD2 ,fill-rect JSR
+	~win.x1 #0003 ADD2 ~win.y2 ~win.x2 #0003 ADD2 ~win.y2 #0003 ADD2 ,fill-rect JSR
+	( Fill background )
+	#02 =color
+	~win.x1 ~win.y1 ~win.x2 ~win.y2 ,fill-rect JSR
+	( draw outline )
+	#01 =color
+	~win.x1 ~win.y1 ~win.x2 ~win.y2 ,line-rect JSR
+	#01 =color
+	~win.x1 #0002 ADD2 ~win.y1 #0002 ADD2 ~win.x2 #0002 SUB2 ~win.y2 #0002 SUB2 ,line-rect JSR
+
+RTS
+
+@draw-label ( text x1 y1 )
+
+	=pos.y =pos.x
+	@draw-label-loop
+
+		( draw ) ~pos.x ~pos.y IOW2 IOW2 DUP2 LDR #00 SWP #0008 MUL2 ,font ADD2 IOW2 ~color IOW
+		( incr ) #0001 ADD2
+		( incr ) ~pos.x #0008 ADD2 =pos.x
+
+		( detect linebreaks )
+		DUP2 LDR #0d NEQ ,no-return ROT JMP? POP2
+			#0048 =pos.x
+		( incr ) ~pos.y #0008 ADD2 =pos.y
+		@no-return
+
+		DUP2 LDR #00 NEQ ,draw-label-loop ROT JMP? POP2
+	POP2
+
+RTS
+
+@fill-rect ( x1 y1 x2 y2 )
+	=y2 =x2 ( stash x1 y1 ) =y1 DUP2 WSR2 =x1
+	@fill-rect-ver
+		RSW2 DUP2 =x1 WSR2
+		@fill-rect-hor
+			( draw ) ~x1 ~y1 IOW2 IOW2 ~color IOW
+			( incr ) ~x1 #0001 ADD2 DUP2 =x1  
+			~x2 LTH2 ,fill-rect-hor ROT JMP? POP2
+		~y1 #0001 ADD2 DUP2 =y1
+		~y2 LTH2 ,fill-rect-ver ROT JMP? POP2
+	RSW2 POP2
+RTS
+
+@line-rect ( x1 y1 x2 y2 )
+	=y2 =x2 ( stash x1 y1 ) DUP2 WSR2 =y1 DUP2 WSR2 =x1
+	@line-rect-hor
+		( draw ) ~x1 ~y1 IOW2 IOW2 ~color IOW
+		( draw ) ~x1 ~y2 IOW2 IOW2 ~color IOW
+		( incr ) ~x1 #0001 ADD2 DUP2 =x1  
+		~x2 #0001 ADD2 LTH2 ,line-rect-hor ROT JMP? POP2
+	( restore x1 y1 ) RSW2 =x1 RSW2 =y1
+	@line-rect-ver
+		( incr ) ~y1 #0001 ADD2 DUP2 =y1  
+		( draw ) ~x1 ~y1 IOW2 IOW2 ~color IOW
+		( draw ) ~x2 ~y1 IOW2 IOW2 ~color IOW
+		~y2 #0001 SUB2 LTH2 ,line-rect-ver ROT JMP? POP2
+RTS
+
+@draw-sprite
+	IOW2 ( y byte )
+	IOW2 ( x byte )
+	IOW2 ( sprite address )
+	IOW ( layer-color )
+	RTS
+
+@pattern     [ 4281 1824 2418 8142 ]
+
+@clear_icn   [ 0000 0000 0000 0000 ]
+@cursor_icn  [ 80c0 e0f0 f8e0 1000 ]
+
+@mouse0_icn  [ 7c82 92ee 8282 4438 ]
+@mouse1_icn  [ 7cf2 f2ee 8282 4438 ]
+@mouse2_icn  [ 7c9e 9eee 8282 4438 ]
+@mouse12_icn [ 7cfe feee 8282 4438 ]
+
+@font ( spectrum-zx font ) 
+[
+	0000 0000 0000 0000 0000 2400 7e3c 0000 0000 2400 3c42 0000 0000 6c7c 7c38 1000
+	0010 387c 7c38 1000 0038 387c 6c10 3800 0010 387c 7c10 3800 0000 0018 1800 0000
+	007e 4242 4242 7e00 0000 1824 2418 0000 0018 2442 4224 1800 001e 063a 4a48 3000
+	0038 446c 107c 1000 000c 0808 0838 3800 003e 2222 2266 6600 0000 0822 0022 0800
+	0000 1018 1c18 1000 0000 0818 3818 0800 0008 1c00 001c 0800 0028 2828 2800 2800
+	003e 4a4a 3a0a 0a00 000c 3046 620c 3000 0000 0000 0000 ffff 0010 3800 3810 0038
+	0008 1c2a 0808 0800 0008 0808 2a1c 0800 0000 0804 7e04 0800 0000 1020 7e20 1000
+	0000 4040 7e00 0000 0000 0024 6624 0000 0000 1038 7c00 0000 0000 007c 3810 0000
+	0000 0000 0000 0000 0008 0808 0800 0800 0014 1400 0000 0000 0024 7e24 247e 2400
+	0008 1e28 1c0a 3c08 0042 0408 1020 4200 0030 4832 4c44 3a00 0008 1000 0000 0000
+	0004 0808 0808 0400 0010 0808 0808 1000 0000 1408 3e08 1400 0000 0808 3e08 0800
+	0000 0000 0008 0810 0000 0000 3c00 0000 0000 0000 0000 0800 0000 0204 0810 2000
+	003c 464a 5262 3c00 0018 2808 0808 3e00 003c 4202 3c40 7e00 003c 421c 0242 3c00
+	0008 1828 487e 0800 007e 407c 0242 3c00 003c 407c 4242 3c00 007e 0204 0810 1000
+	003c 423c 4242 3c00 003c 4242 3e02 3c00 0000 0008 0000 0800 0000 0800 0008 0810
+	0000 0810 2010 0800 0000 003e 003e 0000 0000 1008 0408 1000 003c 4202 0c00 0800
+	003c 425a 5442 3c00 0018 2442 7e42 4200 007c 427c 4242 7c00 003c 4240 4042 3c00
+	0078 4442 4244 7800 007e 407c 4040 7e00 003e 4040 7c40 4000 003c 4240 4e42 3c00
+	0042 427e 4242 4200 003e 0808 0808 3e00 0002 0202 4242 3c00 0044 4870 4844 4200
+	0040 4040 4040 7e00 0042 665a 4242 4200 0042 6252 4a46 4200 003c 4242 4242 3c00
+	007c 4242 7c40 4000 003c 4242 524a 3c00 007c 4242 7c44 4200 003c 403c 0242 3c00
+	00fe 1010 1010 1000 0042 4242 4242 3c00 0042 4242 4224 1800 0042 4242 5a66 4200
+	0042 2418 1824 4200 0082 4428 1010 1000 007e 0408 1020 7e00 000c 0808 0808 0c00
+	0040 2010 0804 0200 0018 0808 0808 1800 0008 1422 0000 0000 0000 0000 0000 7e00
+	0008 0400 0000 0000 0000 1c02 1e22 1e00 0020 203c 2222 3c00 0000 1e20 2020 1e00
+	0002 021e 2222 1e00 0000 1c22 3c20 1e00 000c 101c 1010 1000 0000 1c22 221e 021c
+	0020 202c 3222 2200 0008 0018 0808 0400 0008 0008 0808 4830 0020 2428 3028 2400
+	0010 1010 1010 0c00 0000 6854 5454 5400 0000 5864 4444 4400 0000 3844 4444 3800
+	0000 7844 4478 4040 0000 3c44 443c 0406 0000 2c30 2020 2000 0000 3840 3804 7800
+	0010 103c 1010 0c00 0000 4444 4444 3800 0000 4444 2828 1000 0000 4454 5454 2800
+	0000 4428 1028 4400 0000 4444 443c 0438 0000 7c08 1020 7c00 000c 0810 1008 0c00
+	0008 0808 0808 0800 0030 1008 0810 3000 0000 0032 4c00 0000 3c42 99a1 a199 423c
+]
+
+@body          [  ]
+
+|d000 @ERROR BRK 
+|FFF0 [ f0ff f00f f00f ] ( palette )
+|FFFA .RESET .FRAME .ERROR