From 35c0e33df2b5520f4977639840ac9f576ffa0275 Mon Sep 17 00:00:00 2001
From: Relintai <relintai@protonmail.com>
Date: Wed, 23 Feb 2022 13:05:58 +0100
Subject: [PATCH] Added a mesh transform property to TiledWall2D. It's not
 bound yet, as I'm thinking about how to do it. It can be used to create
 isometric meshes. Also reworked editor click selection, now that the meshes
 are not just the same size as the rect.

---
 tiled_wall/tiled_wall_2d.cpp | 29 ++++++++++++++++++++++++++++-
 tiled_wall/tiled_wall_2d.h   |  8 ++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/tiled_wall/tiled_wall_2d.cpp b/tiled_wall/tiled_wall_2d.cpp
index de010ca..e6a51ba 100644
--- a/tiled_wall/tiled_wall_2d.cpp
+++ b/tiled_wall/tiled_wall_2d.cpp
@@ -26,6 +26,7 @@
 #include "tiled_wall_2d_data.h"
 
 #include "../lights/prop_2d_light.h"
+#include "core/math/geometry.h"
 
 int TiledWall2D::get_width() const {
 	return _width;
@@ -99,6 +100,14 @@ PoolVector<Face3> TiledWall2D::get_faces(uint32_t p_usage_flags) const {
 }
 
 #ifdef TOOLS_ENABLED
+bool TiledWall2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
+	if (_editor_selection_points.size() == 0) {
+		return false;
+	}
+
+	return Geometry::is_point_in_polygon(p_point, _editor_selection_points);
+}
+
 bool TiledWall2D::_edit_use_rect() const {
 	return true;
 }
@@ -184,8 +193,15 @@ void TiledWall2D::generate_mesh() {
 	l->set_color(Color(1, 0, 0, 1));
 	l->set_size(100);
 
+	//Vector2 x(1, 0);
+	//x = x.rotated(Math::deg2rad(45.0));
+	//_mesh_transform = Transform2D(x.x, x.y, 0, 1, 0, 0);
+
+	//t.rotate(Math::deg2rad(45.0));
+	//t.scale_basis(Vector2(1, 0.5));
+
 	_mesher->add_light(l);
-	_mesher->add_tiled_wall_simple(_width, _height, Transform2D(), _data, _cache);
+	_mesher->add_tiled_wall_simple(_width, _height, _mesh_transform, _data, _cache);
 	_mesher->bake_colors();
 
 	_rect = _mesher->calculate_rect();
@@ -199,6 +215,17 @@ void TiledWall2D::generate_mesh() {
 
 	PoolVector<Vector2> vertices = _mesh_array[Mesh::ARRAY_VERTEX];
 
+#ifdef TOOLS_ENABLED
+	Vector<Vector2> editor_point_vertices;
+	editor_point_vertices.resize(vertices.size());
+
+	for (int i = 0; i < vertices.size(); ++i) {
+		editor_point_vertices.set(i, vertices[i]);
+	}
+
+	_editor_selection_points = Geometry::convex_hull_2d(editor_point_vertices);
+#endif
+
 	if (vertices.size() == 0) {
 		update();
 		return;
diff --git a/tiled_wall/tiled_wall_2d.h b/tiled_wall/tiled_wall_2d.h
index 6dc158c..cf6f1a3 100644
--- a/tiled_wall/tiled_wall_2d.h
+++ b/tiled_wall/tiled_wall_2d.h
@@ -55,6 +55,8 @@ public:
 	PoolVector<Face3> get_faces(uint32_t p_usage_flags) const;
 
 #ifdef TOOLS_ENABLED
+	virtual bool _edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const;
+
 	virtual bool _edit_use_rect() const;
 	virtual Rect2 _edit_get_rect() const;
 #endif
@@ -88,6 +90,12 @@ private:
 	Rect2 _rect;
 
 	Array _mesh_array;
+
+	Transform2D _mesh_transform;
+	
+#ifdef TOOLS_ENABLED
+	Vector<Point2> _editor_selection_points;
+#endif
 };
 
 #endif