From 522bee68b2f6955df0895a5c47a772970f84c045 Mon Sep 17 00:00:00 2001
From: neauoire <aliceffekt@gmail.com>
Date: Fri, 22 Jan 2021 10:24:52 -0800
Subject: [PATCH] Added colorpicker

---
 README.md |  1 +
 nasu.c    | 13 ++++++++-----
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 6e2918b..d6c65b9 100644
--- a/README.md
+++ b/README.md
@@ -41,3 +41,4 @@ To resume working on a tileset:
 - `mouse1` Paint
 - `mouse2` Line
 - `mouse1+mouse3` Erase
+- `ctrl+mouse1` Color Picker
diff --git a/nasu.c b/nasu.c
index 920ecc8..785b36a 100644
--- a/nasu.c
+++ b/nasu.c
@@ -441,6 +441,7 @@ quit(void)
 void
 domouse(SDL_Event *event)
 {
+	int ctrl = SDL_GetModState() & KMOD_LCTRL || SDL_GetModState() & KMOD_RCTRL;
 	switch(event->type) {
 	case SDL_MOUSEBUTTONUP:
 		if(event->button.button == SDL_BUTTON_LEFT)
@@ -461,10 +462,11 @@ domouse(SDL_Event *event)
 			line(brush.px, brush.py, screenpos(event->motion.x, brush.vx), screenpos(event->motion.y, brush.vy), brush.erase ? 0 : brush.color);
 		brush.px = screenpos(event->motion.x, brush.vx);
 		brush.py = screenpos(event->motion.y, brush.vy);
-		if(!BIGPIXEL) {
+		if(!BIGPIXEL)
 			lookat((brush.px / 8) * 8, (brush.py / 8) * 8);
-		}
-		if(brush.down) {
+		if(ctrl) /* color picker */
+			savemode(&brush.color, getchr(brush.px, brush.py));
+		else if(brush.down) {
 			if(brush.mode == 0)
 				putchr(brush.px, brush.py, brush.erase ? 0 : brush.color);
 			else
@@ -476,7 +478,9 @@ domouse(SDL_Event *event)
 		if(brush.down) {
 			brush.x = screenpos(event->motion.x, brush.vx);
 			brush.y = screenpos(event->motion.y, brush.vy);
-			if(!brush.mode)
+			if(ctrl) /* color picker */
+				savemode(&brush.color, getchr(brush.px, brush.py));
+			else if(!brush.mode)
 				line(brush.px, brush.py, brush.x, brush.y, brush.erase ? 0 : brush.color);
 			else
 				fill(brush.x, brush.y, brush.mode, brush.size, brush.erase ? 0 : brush.color);
@@ -515,7 +519,6 @@ dokey(SDL_Event *event)
 		case SDLK_b: savemode(&BIGPIXEL, !BIGPIXEL); break;
 		case SDLK_z: savemode(&brush.size, brush.size + (brush.size > 1 ? -1 : 0)); break;
 		case SDLK_x: savemode(&brush.size, brush.size + (brush.size < 30 ? 1 : 0)); break;
-
 		case SDLK_UP: lookat(brush.vx, brush.vy - 1); break;
 		case SDLK_DOWN: lookat(brush.vx, brush.vy + 1); break;
 		case SDLK_LEFT: lookat(brush.vx - 1, brush.vy); break;