From f10bf4c96f734c15e5ffb1d4f1d35819348eb176 Mon Sep 17 00:00:00 2001
From: OverloadedOrama <35376950+OverloadedOrama@users.noreply.github.com>
Date: Sat, 30 Nov 2019 03:22:56 +0200
Subject: [PATCH] Possible fix of #10 - thanks azagaya!

---
 Main.tscn         | 1 +
 Scripts/Canvas.gd | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/Main.tscn b/Main.tscn
index d0d373409..c8e89b33a 100644
--- a/Main.tscn
+++ b/Main.tscn
@@ -476,6 +476,7 @@ hint_tooltip = "Color picker for the right tool"
 mouse_default_cursor_shape = 2
 size_flags_horizontal = 0
 size_flags_vertical = 0
+color = Color( 1, 1, 1, 1 )
 
 [node name="BrushType" type="HBoxContainer" parent="MenuAndUI/UI/ToolPanel/Tools/ToolOptions/RightToolOptions"]
 margin_top = 82.0
diff --git a/Scripts/Canvas.gd b/Scripts/Canvas.gd
index 2d1482c47..4c340155a 100644
--- a/Scripts/Canvas.gd
+++ b/Scripts/Canvas.gd
@@ -625,6 +625,11 @@ func flood_fill(pos : Vector2, target_color : Color, replace_color : Color) -> v
 
 		var q = [pos]
 		for n in q:
+			#If the difference in colors is very small, break the loop (thanks @azagaya on GitHub!)
+			var c = target_color - replace_color
+			var dist = sqrt(c.r*c.r + c.g*c.g + c.b*c.b + c.a*c.a)
+			if dist <= 0.005:
+				break
 			var west : Vector2 = n
 			var east : Vector2 = n
 			while west.x >= west_limit && layers[current_layer_index][0].get_pixelv(west) == target_color: