From ae89c2b46aa341b0d9466717000ac63f82d958b4 Mon Sep 17 00:00:00 2001
From: Fabien Freling <public@ffreling.com>
Date: Thu, 7 May 2020 19:05:14 +0200
Subject: [PATCH] add piece thickness

---
 project.md     |   6 +--
 src/Main.tscn  |   3 --
 src/Piece.tscn | 114 +++++++++++++++++++++++++++++++++++--------------
 3 files changed, 84 insertions(+), 39 deletions(-)

diff --git a/project.md b/project.md
index a779f05..4614f59 100644
--- a/project.md
+++ b/project.md
@@ -34,6 +34,6 @@ Color palette: https://lospec.com/palette-list/slso8
 
 Inspiration
 -----------
-- [ZHED](playzhed.com)
-- [adrena...line](managore.itch.io/adrena-line)
-- [pet putt](http://petputt.com/)
+- https://playzhed.com
+- https://managore.itch.io/adrena-line
+- https://petputt.com/
diff --git a/src/Main.tscn b/src/Main.tscn
index 1b876fd..b1a90bd 100644
--- a/src/Main.tscn
+++ b/src/Main.tscn
@@ -39,9 +39,6 @@ margin_right = 540.0
 margin_bottom = 560.0
 rows = 4
 columns = 4
-width = 512
-height = 512
-current_state = 0
 
 [node name="VSplitContainer" type="VBoxContainer" parent="HSplitContainer"]
 margin_left = 548.0
diff --git a/src/Piece.tscn b/src/Piece.tscn
index 96df301..fa0d094 100644
--- a/src/Piece.tscn
+++ b/src/Piece.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=14 format=2]
+[gd_scene load_steps=16 format=2]
 
 [ext_resource path="res://src/Piece.gd" type="Script" id=1]
 [ext_resource path="res://assets/escher_lizards.jpg" type="Texture" id=2]
@@ -8,13 +8,26 @@ constant = Vector3( 0.3, 0.3, 0 )
 
 [sub_resource type="VisualShaderNodeExpression" id=12]
 output_port_for_preview = 0
-size = Vector2( 620, 395 )
+size = Vector2( 657, 584 )
 expression = "// https://iquilezles.org/www/articles/distfunctions2d/distfunctions2d.htm
 vec2 rel_p = input.xy - vec2(0.5, 0.5);
-float box = 0.4;
-vec2 d = abs(rel_p) - vec2(box, box); // mirroring
-float dist = length(max(d, 0.0)) + min(max(d.x,d.y), 0.0);
-alpha_mask = dist < (0.5 - box);"
+float box_size = 0.4;
+vec2 box = vec2(box_size, box_size);
+vec2 d = abs(rel_p) - box; // mirroring
+float dist = length(max(d, 0.0)) + min(max(d.x, d.y), 0.0);
+alpha_mask = dist < (0.5 - box_size);
+
+float thickness = 0.05;
+vec2 box_thick = vec2(box_size, box_size - thickness);
+vec2 d_thick = abs(rel_p) - box_thick;
+float dist_thick = length(max(d_thick, 0.0)) + min(max(d_thick.x, d_thick.y), 0.0);
+is_thickness = rel_p.y > 0.0 && dist_thick > (0.5 - box_size);"
+
+[sub_resource type="VisualShaderNodeColorConstant" id=13]
+constant = Color( 0.734375, 0.347832, 0.0657608, 1 )
+
+[sub_resource type="VisualShaderNodeSwitch" id=14]
+output_port_for_preview = 0
 
 [sub_resource type="VisualShaderNodeTexture" id=2]
 output_port_for_preview = 0
@@ -58,6 +71,31 @@ void fragment() {
 // Input:4
 	vec3 n_out4p0 = vec3(UV, 0.0);
 
+// Expression:13
+	bool n_out13p0;
+	bool n_out13p1;
+	n_out13p0 = false;
+	n_out13p1 = false;
+	{
+		// https://iquilezles.org/www/articles/distfunctions2d/distfunctions2d.htm
+		vec2 rel_p = n_out4p0.xy - vec2(0.5, 0.5);
+		float box_size = 0.4;
+		vec2 box = vec2(box_size, box_size);
+		vec2 d = abs(rel_p) - box; // mirroring
+		float dist = length(max(d, 0.0)) + min(max(d.x, d.y), 0.0);
+		n_out13p0 = dist < (0.5 - box_size);
+		
+		float thickness = 0.05;
+		vec2 box_thick = vec2(box_size, box_size - thickness);
+		vec2 d_thick = abs(rel_p) - box_thick;
+		float dist_thick = length(max(d_thick, 0.0)) + min(max(d_thick.x, d_thick.y), 0.0);
+		n_out13p1 = rel_p.y > 0.0 && dist_thick > (0.5 - box_size);
+	}
+
+// Color:15
+	vec3 n_out15p0 = vec3(0.734375, 0.347832, 0.065761);
+	float n_out15p1 = 1.000000;
+
 // VectorUniform:7
 	vec3 n_out7p0 = scale;
 
@@ -75,20 +113,19 @@ void fragment() {
 	vec3 n_out3p0 = tex_frg_3_read.rgb;
 	float n_out3p1 = tex_frg_3_read.a;
 
-// Expression:13
-	bool n_out13p0;
-	n_out13p0 = false;
+// VectorSwitch:17
+	vec3 n_out17p0;
+	if(n_out13p1)
 	{
-		// https://iquilezles.org/www/articles/distfunctions2d/distfunctions2d.htm
-		vec2 rel_p = n_out4p0.xy - vec2(0.5, 0.5);
-		float box = 0.4;
-		vec2 d = abs(rel_p) - vec2(box, box); // mirroring
-		float dist = length(max(d, 0.0)) + min(max(d.x,d.y), 0.0);
-		n_out13p0 = dist < (0.5 - box);
+		n_out17p0 = n_out15p0;
+	}
+	else
+	{
+		n_out17p0 = n_out3p0;
 	}
 
 // Output:0
-	COLOR.rgb = n_out3p0;
+	COLOR.rgb = n_out17p0;
 	COLOR.a = n_out13p0 ? 1.0 : 0.0;
 
 }
@@ -98,38 +135,49 @@ void light() {
 
 }
 "
-graph_offset = Vector2( -213.196, 77.3248 )
+graph_offset = Vector2( -380.872, -106.674 )
 mode = 1
 flags/light_only = false
-nodes/fragment/0/position = Vector2( 1120, 360 )
+nodes/fragment/0/position = Vector2( 1540, 360 )
 nodes/fragment/3/node = SubResource( 2 )
-nodes/fragment/3/position = Vector2( 820, 120 )
+nodes/fragment/3/position = Vector2( 740, 20 )
 nodes/fragment/4/node = SubResource( 3 )
 nodes/fragment/4/position = Vector2( -120, 360 )
 nodes/fragment/5/node = SubResource( 4 )
-nodes/fragment/5/position = Vector2( 360, 80 )
+nodes/fragment/5/position = Vector2( 280, -20 )
 nodes/fragment/6/node = SubResource( 5 )
-nodes/fragment/6/position = Vector2( 620, 240 )
+nodes/fragment/6/position = Vector2( 540, 140 )
 nodes/fragment/7/node = SubResource( 6 )
-nodes/fragment/7/position = Vector2( 80, 60 )
+nodes/fragment/7/position = Vector2( 0, -40 )
 nodes/fragment/8/node = SubResource( 7 )
-nodes/fragment/8/position = Vector2( 380, 340 )
+nodes/fragment/8/position = Vector2( 300, 240 )
 nodes/fragment/9/node = SubResource( 8 )
-nodes/fragment/9/position = Vector2( -80, 120 )
+nodes/fragment/9/position = Vector2( -160, 20 )
 nodes/fragment/11/node = SubResource( 1 )
-nodes/fragment/11/position = Vector2( 220, 400 )
+nodes/fragment/11/position = Vector2( 140, 300 )
 nodes/fragment/13/node = SubResource( 12 )
-nodes/fragment/13/position = Vector2( 260, 540 )
-nodes/fragment/13/size = Vector2( 620, 395 )
+nodes/fragment/13/position = Vector2( 440, 440 )
+nodes/fragment/13/size = Vector2( 657, 584 )
 nodes/fragment/13/input_ports = "0,1,input;"
-nodes/fragment/13/output_ports = "0,2,alpha_mask;"
+nodes/fragment/13/output_ports = "0,2,alpha_mask;1,2,is_thickness;"
 nodes/fragment/13/expression = "// https://iquilezles.org/www/articles/distfunctions2d/distfunctions2d.htm
 vec2 rel_p = input.xy - vec2(0.5, 0.5);
-float box = 0.4;
-vec2 d = abs(rel_p) - vec2(box, box); // mirroring
-float dist = length(max(d, 0.0)) + min(max(d.x,d.y), 0.0);
-alpha_mask = dist < (0.5 - box);"
-nodes/fragment/connections = PoolIntArray( 3, 0, 0, 0, 5, 0, 6, 0, 6, 0, 3, 0, 13, 0, 0, 1, 4, 0, 5, 0, 4, 0, 13, 0, 8, 0, 6, 1, 7, 0, 5, 1 )
+float box_size = 0.4;
+vec2 box = vec2(box_size, box_size);
+vec2 d = abs(rel_p) - box; // mirroring
+float dist = length(max(d, 0.0)) + min(max(d.x, d.y), 0.0);
+alpha_mask = dist < (0.5 - box_size);
+
+float thickness = 0.05;
+vec2 box_thick = vec2(box_size, box_size - thickness);
+vec2 d_thick = abs(rel_p) - box_thick;
+float dist_thick = length(max(d_thick, 0.0)) + min(max(d_thick.x, d_thick.y), 0.0);
+is_thickness = rel_p.y > 0.0 && dist_thick > (0.5 - box_size);"
+nodes/fragment/15/node = SubResource( 13 )
+nodes/fragment/15/position = Vector2( 780, -100 )
+nodes/fragment/17/node = SubResource( 14 )
+nodes/fragment/17/position = Vector2( 1080, 80 )
+nodes/fragment/connections = PoolIntArray( 5, 0, 6, 0, 6, 0, 3, 0, 13, 0, 0, 1, 4, 0, 5, 0, 4, 0, 13, 0, 13, 1, 17, 0, 15, 0, 17, 1, 3, 0, 17, 2, 17, 0, 0, 0, 7, 0, 5, 1, 8, 0, 6, 1 )
 
 [sub_resource type="ShaderMaterial" id=10]
 shader = SubResource( 9 )