From ab9ada307b4f9d826410fc5b1243f00abe7db326 Mon Sep 17 00:00:00 2001
From: Devine Lu Linvega <aliceffekt@gmail.com>
Date: Wed, 11 Mar 2026 11:02:13 -0700
Subject: [PATCH] Faster state drawing

---
 src/nasu.tal | 66 ++++++++++++++++++++++++----------------------------
 1 file changed, 30 insertions(+), 36 deletions(-)

diff --git a/src/nasu.tal b/src/nasu.tal
index 194b5c5..d26a72b 100644
--- a/src/nasu.tal
+++ b/src/nasu.tal
@@ -9,7 +9,7 @@
 
 |000
 
-	@state/timer $1 &changed $1
+	@state/timer $1
 	@settings/depth $1 &color $1 &blend $1 &ratio $1 &tool $1 &focus $2 &zoom $1 &brush $1 &dir $1
 	@cursor/x $2 &y $2 &last $1
 	@selection &x1 $1 &y1 $1 &x2 $1 &y2 $1 &zx $1 &zy $1 &a $1
@@ -204,8 +204,7 @@
 	#01 .settings/tool LDZ EQU ?&select
 	( | paint )
 	.settings/color LDZ .Mouse/state DEI #01 EQU MUL <put-pixel>
-	[ LIT2 01 -state/changed ] STZ
-	<draw-state>
+	state/<change>
 	<redraw>
 	BRK
 
@@ -218,8 +217,7 @@
 
 	&zoomed ( x* y* -> )
 	SWP2 #03 SFT2 #00 .selection/zx LDZ ADD2 SWP2 #03 SFT2 #00 .selection/zy LDZ ADD2 .settings/color LDZ .Mouse/state DEI #01 EQU MUL <put-pixel>
-	[ LIT2 01 -state/changed ] STZ
-	<draw-state>
+	state/<change>
 	<redraw>
 	BRK
 
@@ -239,8 +237,7 @@
 	.settings/focus LDZ2 ;spritesheet SUB2 STH2kr STA2
 	.settings/blend LDZ INC2r INC2r STH2r STA
 	<draw-nametable>
-	[ LIT2 01 -state/changed ] STZ
-	<draw-state>
+	state/<change>
 	BRK
 
 @on-touch-toolview ( -> )
@@ -271,9 +268,7 @@
 		POP
 		( release mouse ) [ LIT2 00 -Mouse/state ] DEO !&finish }
 	.Mouse/x DEI2 .zoomview/x1 LDZ2 SUB2 #02 SFT2 #00 .selection/x1 LDZ #30 SFT2 ADD2
-	( ) .Mouse/y DEI2 .zoomview/y1 LDZ2 SUB2 #02 SFT2 #00 .selection/y1 LDZ #30 SFT2 ADD2 .settings/color LDZ .Mouse/state DEI #01 EQU MUL <put-pixel>
-	&finish [ LIT2 01 -state/changed ] STZ
-	<draw-state>
+	( ) .Mouse/y DEI2 .zoomview/y1 LDZ2 SUB2 #02 SFT2 #00 .selection/y1 LDZ #30 SFT2 ADD2 .settings/color LDZ .Mouse/state DEI #01 EQU MUL <put-pixel> &finish state/<change>
 	<redraw>
 	BRK
 
@@ -456,6 +451,20 @@
 @get-strw ( str* -- width* )
 	slen #30 SFT2 JMP2r
 
+@state/<unchange> ( -- )
+	[ LIT2 01 _&changed ] STR !/<draw>
+
+@state/<change> ( -- )
+	[ LIT2 03 _&changed ] STR
+	( >> )
+
+@state/<draw> ( -- )
+	.toolview/x2 LDZ2 #0008 SUB2 .Screen/x DEO2
+	.toolview/y1 LDZ2 .Screen/y DEO2
+	;save-icn .Screen/addr DEO2
+	[ LIT2 &changed $1 -Screen/sprite ] DEO
+	JMP2r
+
 (
 @|filter )
 
@@ -864,7 +873,7 @@
 	;zoom-icns [ #00 .settings/zoom LDZ #30 SFT2 ADD2 ] .Screen/addr DEO2
 	#01 .settings/tool LDZ #02 EQU ADD .Screen/sprite DEO
 	( | file i/o )
-	<draw-state>
+	state/<draw>
 	.toolview/x2 LDZ2 STH2k #0018 SUB2 .Screen/x DEO2
 	;load-icn .Screen/addr DEO2
 	[ LIT2 01 -Screen/sprite ] DEO
@@ -874,13 +883,6 @@
 	( | filepath )
 	#01 !<draw-filepath>
 
-@<draw-state> ( -- )
-	.toolview/x2 LDZ2 #0008 SUB2 .Screen/x DEO2
-	.toolview/y1 LDZ2 .Screen/y DEO2
-	;save-icn .Screen/addr DEO2
-	#05 .state/changed LDZ #0a MUL ADD .Screen/sprite DEO
-	JMP2r
-
 @<draw-filepath> ( color -- )
 	.toolview/x1 LDZ2 #0040 ADD2 .Screen/x DEO2
 	.toolview/y1 LDZ2 INC2 .Screen/y DEO2
@@ -1012,8 +1014,7 @@
 	( | rename to untitled.txt )
 	;filepath #0040 <mclr>
 	;untitled-txt ;filepath <scpy>
-	#00 .state/changed STZ
-	<draw-state> !<redraw>
+	state/<unchange> !<redraw>
 
 @file-open ( -- )
 	;filepath is-mono ?file-open-mono
@@ -1030,8 +1031,7 @@
 	#0300 .File/length DEO2
 	;nametable .File/read DEO2
 	;filepath scap #0004 SUB2 #0004 <mclr>
-	#00 .state/changed STZ
-	<draw-state> !<redraw>
+	state/<unchange> !<redraw>
 
 @file-open-mono ( -- )
 	;spritesheet #1300 <mclr>
@@ -1042,8 +1042,7 @@
 	&>loop
 		#00 OVR #40 SFT2 ;spritesheet ADD2 .File/read DEO2
 		INC NEQk ?&>loop
-	POP2 #00 .state/changed STZ
-	<draw-state> !<redraw>
+	POP2 state/<unchange> !<redraw>
 
 @file-save ( -- )
 	;filepath is-mono ?file-save-mono
@@ -1058,7 +1057,7 @@
 		#0300 .File/length DEO2
 		;nametable .File/write DEO2
 		;filepath scap #0004 SUB2 #0004 <mclr> }
-	#00 .state/changed STZ !<draw-state>
+	!state/<unchange>
 
 @file-save-mono ( -- )
 	;filepath .File/name DEO2
@@ -1067,7 +1066,7 @@
 	&>loop
 		#00 OVR #40 SFT2 ;spritesheet ADD2 .File/write DEO2
 		INC NEQk ?&>loop
-	POP2 #00 .state/changed STZ !<draw-state>
+	POP2 !state/<unchange>
 
 @save-theme ( -- )
 	.System/r DEI2 #fffa STA2
@@ -1105,28 +1104,23 @@
 
 @edit-erase ( -- )
 	;op-erase <run>
-	[ LIT2 01 -state/changed ] STZ
-	<draw-state> !<redraw>
+	state/<change> !<redraw>
 
 @edit-invert ( -- )
 	;op-invert <run>
-	[ LIT2 01 -state/changed ] STZ
-	<draw-state> !<redraw>
+	state/<change> !<redraw>
 
 @edit-colorize ( -- )
 	;filter-colorize <filter>
-	[ LIT2 01 -state/changed ] STZ
-	<draw-state> !<redraw>
+	state/<change> !<redraw>
 
 @edit-flipx ( -- )
 	;filter-flipx <filter>
-	[ LIT2 01 -state/changed ] STZ
-	<draw-state> !<redraw>
+	state/<change> !<redraw>
 
 @edit-flipy ( -- )
 	;filter-flipy <filter>
-	[ LIT2 01 -state/changed ] STZ
-	<draw-state> !<redraw>
+	state/<change> !<redraw>
 
 @tool-brush ( -- )
 	#00 !<set-tool>