commit a7ae3d0ca58d602e50bdf3c2da1edff969c9f5d5
Author: neauoire <aliceffekt@gmail.com>
Date:   Sat Sep 10 12:19:31 2022 -0700

    Init ray

diff --git a/ray/bin/ray.rom b/ray/bin/ray.rom
new file mode 100644
index 0000000..0720557
Binary files /dev/null and b/ray/bin/ray.rom differ
diff --git a/ray/build.sh b/ray/build.sh
new file mode 100755
index 0000000..d34a8c2
--- /dev/null
+++ b/ray/build.sh
@@ -0,0 +1,34 @@
+#!/bin/sh -e
+
+ASM="uxncli $HOME/roms/drifblim.rom"
+EMU="uxnemu"
+LIN="uxncli $HOME/roms/uxnlin.rom"
+
+SRC="src/ray.tal"
+DST="bin/ray.rom"
+
+CPY="$HOME/roms"
+ETC="src/manifest.tal"
+ARG=""
+
+echo ">> Cleaning"
+rm -rf bin
+mkdir bin
+
+if [[ "$*" == *"--lint"* ]]
+then
+    echo ">> Linting $SRC"
+	$LIN $SRC $ETC
+fi
+
+echo ">> Assembling $SRC"
+$ASM $SRC $DST
+
+if [[ "$*" == *"--save"* ]]
+then
+    echo ">> Saving $DST"
+	cp $DST $CPY
+fi
+
+echo ">> Running $DST"
+$EMU $DST $ARG
diff --git a/ray/etc/map.chr b/ray/etc/map.chr
new file mode 100644
index 0000000..bec83db
Binary files /dev/null and b/ray/etc/map.chr differ
diff --git a/ray/etc/map.chr.nmt b/ray/etc/map.chr.nmt
new file mode 100644
index 0000000..3af9b3f
Binary files /dev/null and b/ray/etc/map.chr.nmt differ
diff --git a/ray/src/ray.tal b/ray/src/ray.tal
new file mode 100644
index 0000000..abc4838
--- /dev/null
+++ b/ray/src/ray.tal
@@ -0,0 +1,227 @@
+( a blank file )
+
+|00 @System     &vector $2 &wst      $1 &rst    $1 &eaddr  $2 &ecode  $1 &pad     $1 &r       $2 &g      $2 &b     $2 &debug  $1 &halt $1
+|10 @Console    &vector $2 &read     $1 &pad    $5 &write  $1 &error  $1
+|20 @Screen     &vector $2 &width    $2 &height $2 &auto   $1 &pad    $1 &x       $2 &y       $2 &addr   $2 &pixel $1 &sprite $1
+|30 @Audio0     &vector $2 &position $2 &output $1 &pad    $3 &adsr   $2 &length  $2 &addr    $2 &volume $1 &pitch $1
+|40 @Audio1     &vector $2 &position $2 &output $1 &pad    $3 &adsr   $2 &length  $2 &addr    $2 &volume $1 &pitch $1
+|50 @Audio2     &vector $2 &position $2 &output $1 &pad    $3 &adsr   $2 &length  $2 &addr    $2 &volume $1 &pitch $1
+|60 @Audio3     &vector $2 &position $2 &output $1 &pad    $3 &adsr   $2 &length  $2 &addr    $2 &volume $1 &pitch $1
+|80 @Controller &vector $2 &button   $1 &key    $1 &func   $1
+|90 @Mouse      &vector $2 &x        $2 &y      $2 &state  $1 &pad    $3 &scrollx $2 &scrolly $2
+|a0 @File0      &vector $2 &success  $2 &stat   $2 &delete $1 &append $1 &name    $2 &length  $2 &read   $2 &write $2
+|b0 @File1      &vector $2 &success  $2 &stat   $2 &delete $1 &append $1 &name    $2 &length  $2 &read   $2 &write $2
+|c0 @DateTime   &year   $2 &month    $1 &day    $1 &hour   $1 &minute $1 &second  $1 &dotw    $1 &doty   $2 &isdst $1
+
+( variables )
+
+|0000
+
+	@player
+		&x $2 &y $2 &a $2
+	@line
+		&x $2 &y $2 &dx $2 &dy $2 &e1 $2
+
+( program )
+
+|0100 ( -> )
+
+	( theme ) 
+	#0fe5 .System/r DEO2 
+	#0fc5 .System/g DEO2 
+	#0f25 .System/b DEO2
+
+	( vectors )
+	;on-frame .Screen/vector DEO2
+
+	#0060 .player/x STZ2
+	#0070 .player/y STZ2
+	#0032 .player/a STZ2
+
+	;draw-map JSR2
+
+BRK
+
+(
+@|vectors )
+
+@on-frame ( -> )
+
+	.player/x LDZ2
+	.player/y LDZ2
+	[ LIT2 &range 0020 ] STH2k ;raycast JSR2
+
+		OVR2 .player/x LDZ2 STH2kr #01 SFT2 SUB2 ADD2 
+			#03 SFT2 ;print JSR2 #2018 DEO 
+		DUP2 .player/y LDZ2 STH2kr #01 SFT2 SUB2 ADD2 
+			#03 SFT2 ;print JSR2 #0a18 DEO
+
+		SWP2 .player/x LDZ2 STH2kr #01 SFT2 SUB2 ADD2 SWP2
+		.player/y LDZ2 STH2r #01 SFT2 SUB2 ADD2
+		#02 ;draw-line JSR2
+
+	,&range LDR2 INC2 ,&range STR2
+
+BRK
+
+@raycast ( range* -- x* y* )
+
+	STH2
+	.player/a LDZ2 #10 SFT2 ;sin60 ADD2 LDA2
+	#00 SWP STH2kr MUL2 #08 SFT2 ,&y STR2
+	#00 SWP STH2r MUL2 #08 SFT2 ,&x STR2
+	[ LIT2 &x $2 ]
+	[ LIT2 &y $2 ]
+
+JMP2r
+
+@draw-map ( -- )
+
+	#01 .Screen/auto DEO
+	#0000 .Screen/y DEO2
+	#1000
+	&ver
+		STHk
+		#0000 .Screen/x DEO2
+		#1000
+		&hor
+			( id ) #00 OVR STHkr #40 SFT ADD
+			( addr* ) #0003 MUL2 ;nametable ADD2
+				LDA2k ;spritesheet ADD2 .Screen/addr DEO2
+			( color ) INC2 INC2 LDA .Screen/sprite DEO
+			INC GTHk ,&hor JCN
+		POP2
+		POPr
+		.Screen/y DEI2k #0008 ADD2 ROT DEO2
+		INC GTHk ,&ver JCN
+	POP2
+
+	( draw player )
+
+	.player/x LDZ2 #0004 SUB2 .Screen/x DEO2
+	.player/y LDZ2 #0004 SUB2 .Screen/y DEO2
+	;player-icn .Screen/addr DEO2
+	#05 .Screen/sprite DEO
+
+JMP2r
+	#3c00
+	&a
+		#00 OVR .player/a STZ2
+		#ff00
+		&r
+			#00 OVR ;raycast JSR2 ;get-tile JSR2 #00 NEQ ,&collide JCN
+			INC GTHk ,&r JCN
+		&collide
+		POP2
+		INC GTHk ,&a JCN
+	POP2
+
+JMP2r
+
+@get-tile ( x* y* -- tile )
+
+	#03 SFT2 #0010 SFT2
+	#03 SFT2 ADD2 #0003 MUL2 ;nametable ADD2 LDZ
+
+JMP2r
+
+@draw-line ( x1* y1* x2* y2* color -- )
+
+	( load ) STH ,&y STR2 ,&x STR2 .line/y STZ2 .line/x STZ2
+	,&x LDR2 .line/x LDZ2 SUB2 ;abs2 JSR2 .line/dx STZ2
+	#0000 ,&y LDR2 .line/y LDZ2 SUB2 ;abs2 JSR2 SUB2 .line/dy STZ2
+	#ffff #00 .line/x LDZ2 ,&x LDR2 ;lts2 JSR2 DUP2 ADD2 ADD2 ,&sx STR2
+	#ffff #00 .line/y LDZ2 ,&y LDR2 ;lts2 JSR2 DUP2 ADD2 ADD2 ,&sy STR2
+	.line/dx LDZ2 .line/dy LDZ2 ADD2 .line/e1 STZ2
+	&loop
+		.line/x LDZ2 DUP2 .Screen/x DEO2 [ LIT2 &x $2 ] EQU2
+		.line/y LDZ2 DUP2 .Screen/y DEO2 [ LIT2 &y $2 ] EQU2
+			STHkr .Screen/pixel DEO
+			AND ,&end JCN
+		.line/e1 LDZ2 DUP2 ADD2 DUP2
+		.line/dy LDZ2 ;lts2 JSR2 ,&skipy JCN
+			.line/e1 LDZ2 .line/dy LDZ2 ADD2 .line/e1 STZ2
+			.line/x LDZ2 [ LIT2 &sx $2 ] ADD2 .line/x STZ2
+		&skipy
+		.line/dx LDZ2 ;gts2 JSR2 ,&skipx JCN
+			.line/e1 LDZ2 .line/dx LDZ2 ADD2 .line/e1 STZ2
+			.line/y LDZ2 [ LIT2 &sy $2 ] ADD2 .line/y STZ2
+		&skipx
+		,&loop JMP
+	&end
+	POPr
+
+JMP2r
+
+@abs2 DUP2 #0f SFT2 EQU #05 JCN #0000 SWP2 SUB2 JMP2r
+@lts2 #8000 STH2k ADD2 SWP2 STH2r ADD2 GTH2 JMP2r
+@gts2 #8000 STH2k ADD2 SWP2 STH2r ADD2 LTH2 JMP2r
+
+@print ( short* -- )
+
+	SWP ,&byte JSR
+	&byte ( byte -- ) DUP #04 SFT ,&char JSR
+	&char ( char -- ) #0f AND DUP #09 GTH #27 MUL ADD #30 ADD #18 DEO
+
+JMP2r
+
+@print-str ( str* -- )
+
+	&while
+		LDAk #18 DEO
+		INC2 LDAk ,&while JCN
+	POP2
+
+JMP2r
+
+@player-icn
+	0010 387c 3810 0000
+
+@sin60 ( 60 positions on a circle )
+	8000 8d00 9a02 a706 b40b c011 cb18 d520
+	df2a e734 ee40 f44b f958 fd65 ff72 ff80
+	ff8d fd9a f9a7 f4b4 eec0 e7cb dfd5 d5df
+	cbe7 c0ee b4f4 a7f9 9afd 8dff 80ff 72ff
+	65fd 58f9 4bf4 40ee 34e7 2adf 20d5 18cb
+	11c0 0bb4 06a7 029a 008d 0080 0072 0265
+	0658 0b4b 113f 1834 202a 2a20 3418 3f11
+	4b0b 5806 6502 7200
+
+@spritesheet
+	0000 0000 0000 0000 0000 0000 0000 0000 
+	ffff ffff ffff ffff 0000 0000 0000 0000 
+	0000 0000 0000 0000 ffff ffff ffff ffff 
+	ffff ffff ffff ffff ffff ffff ffff ffff 
+	0000 0000 0000 0000 ffff ffff ffff ffff 
+	ffff ffff ffff ffff ffff ffff ffff ffff 
+	0000 0000 0000 0000 ffff ffff ffff ffff 
+	ffff ffff ffff ffff ffff ffff ffff ffff 
+
+@nametable
+
+0010 8100 1081 0010 8100 1081 0010 8100 1081 0010 8100 1081 0010 8100 1081 0010 
+8100 1081 0010 8100 1081 0010 8100 1081 0010 8100 0081 0000 8100 0081 0000 8100 
+0081 0000 8100 0081 0000 8100 0081 0000 8100 0081 0000 8100 0081 0000 8100 1081 
+0010 8100 0081 0000 8100 0081 0000 8100 2081 0020 8100 0081 0000 8100 0081 0000 
+8100 0081 0000 8100 0081 0000 8100 1081 0010 8100 0081 0000 8100 0081 0000 8100 
+1081 0000 8100 0081 0010 8100 1081 0010 8100 1081 0010 8100 3081 0030 8100 1081 
+0010 8100 0081 0000 8100 0081 0000 8100 1081 0000 8100 0081 0000 8100 0081 0000 
+8100 0081 0000 8100 0081 0000 8100 1081 0010 8100 0081 0000 8100 0081 0000 8100 
+1081 0000 8100 0081 0000 8100 0081 0000 8100 0081 0000 8100 0081 0000 8100 1081 
+0010 8100 0081 0000 8100 1081 0010 8100 1081 0010 8100 1081 0010 8100 1081 0000 
+8100 0081 0000 8100 0081 0000 8100 1081 0010 8100 0081 0000 8100 1081 0000 8100 
+0081 0000 8100 0081 0000 8100 2081 0020 8100 2081 0020 8100 0081 0000 8100 1081 
+0010 8100 0081 0000 8100 1081 0000 8100 0081 0000 8100 0081 0000 8100 1081 0000 
+8100 0081 0000 8100 0081 0000 8100 1081 0010 8100 0081 0000 8100 1081 0000 8100 
+0081 0000 8100 0081 0000 8100 1081 0000 8100 2081 0020 8100 2081 0020 8100 2081 
+0010 8100 0081 0000 8100 0081 0000 8100 0081 0000 8100 0081 0000 8100 3081 0000 
+8100 0081 0000 8100 0081 0000 8100 2081 0020 8100 0081 0000 8100 0081 0000 8100 
+0081 0000 8100 0081 0000 8100 3081 0000 8100 0081 0000 8100 0081 0000 8100 2081 
+0020 8100 0081 0000 8100 0081 0000 8100 0081 0000 8100 0081 0000 8100 1081 0000 
+8100 0081 0000 8100 0081 0000 8100 2081 0020 8100 0081 0010 8100 1081 0020 8100 
+2081 0020 8100 2081 0010 8100 1081 0000 8100 0081 0000 8100 0081 0000 8100 1081 
+0020 8100 0081 0000 8100 0081 0000 8100 0081 0000 8100 0081 0000 8100 0081 0000 
+8100 0081 0000 8100 0081 0000 8100 1081 0020 8100 2081 0020 8100 1081 0010 8100 
+1081 0010 8100 3081 0030 8100 3081 0010 8100 1081 0020 8100 2081 0010 8100 1081
+
+