Add converters / generators to Sprite

Adds the following menu options to the Sprite editor: "Convert to Mesh2D", "Convert to Polygon2D", "Create CollisionPolygon2D Sibling" and "Create LightOccluder2D Sibling"

2 files changed, 270 insertions, 36 deletions

diff --git a/editor/plugins/sprite_editor_plugin.cpp b/editor/plugins/sprite_editor_plugin.cpp
index 3854d27567..fbc72b1396 100644
--- a/editor/plugins/sprite_editor_plugin.cpp
+++ b/editor/plugins/sprite_editor_plugin.cpp
@@ -31,7 +31,10 @@
 #include "sprite_editor_plugin.h"
 
 #include "canvas_item_editor_plugin.h"
+#include "scene/2d/collision_polygon_2d.h"
+#include "scene/2d/light_occluder_2d.h"
 #include "scene/2d/mesh_instance_2d.h"
+#include "scene/2d/polygon_2d.h"
 #include "scene/gui/box_container.h"
 #include "thirdparty/misc/clipper.hpp"
 
@@ -116,8 +119,42 @@ void SpriteEditor::_menu_option(int p_option) {
 		return;
 	}
 
+	selected_menu_item = (Menu)p_option;
+
 	switch (p_option) {
-		case MENU_OPTION_CREATE_MESH_2D: {
+		case MENU_OPTION_CONVERT_TO_MESH_2D: {
+
+			debug_uv_dialog->get_ok()->set_text(TTR("Create Mesh2D"));
+			debug_uv_dialog->set_title("Mesh2D Preview");
+
+			_update_mesh_data();
+			debug_uv_dialog->popup_centered();
+			debug_uv->update();
+
+		} break;
+		case MENU_OPTION_CONVERT_TO_POLYGON_2D: {
+
+			debug_uv_dialog->get_ok()->set_text(TTR("Create Polygon2D"));
+			debug_uv_dialog->set_title("Polygon2D Preview");
+
+			_update_mesh_data();
+			debug_uv_dialog->popup_centered();
+			debug_uv->update();
+		} break;
+		case MENU_OPTION_CREATE_COLLISION_POLY_2D: {
+
+			debug_uv_dialog->get_ok()->set_text(TTR("Create CollisionPolygon2D"));
+			debug_uv_dialog->set_title("CollisionPolygon2D Preview");
+
+			_update_mesh_data();
+			debug_uv_dialog->popup_centered();
+			debug_uv->update();
+
+		} break;
+		case MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D: {
+
+			debug_uv_dialog->get_ok()->set_text(TTR("Create LightOccluder2D"));
+			debug_uv_dialog->set_title("LightOccluder2D Preview");
 
 			_update_mesh_data();
 			debug_uv_dialog->popup_centered();
@@ -169,47 +206,107 @@ void SpriteEditor::_update_mesh_data() {
 	computed_indices.clear();
 
 	Size2 img_size = Vector2(image->get_width(), image->get_height());
-	for (int j = 0; j < lines.size(); j++) {
-		lines.write[j] = expand(lines[j], rect, epsilon);
+	for (int i = 0; i < lines.size(); i++) {
+		lines.write[i] = expand(lines[i], rect, epsilon);
+	}
+
+	if (selected_menu_item == MENU_OPTION_CONVERT_TO_MESH_2D) {
+
+		for (int j = 0; j < lines.size(); j++) {
+			int index_ofs = computed_vertices.size();
+
+			for (int i = 0; i < lines[j].size(); i++) {
+				Vector2 vtx = lines[j][i];
+				computed_uv.push_back(vtx / img_size);
 
-		int index_ofs = computed_vertices.size();
+				vtx -= rect.position; //offset by rect position
 
-		for (int i = 0; i < lines[j].size(); i++) {
-			Vector2 vtx = lines[j][i];
-			computed_uv.push_back(vtx / img_size);
+				//flip if flipped
+				if (node->is_flipped_h())
+					vtx.x = rect.size.x - vtx.x - 1.0;
+				if (node->is_flipped_v())
+					vtx.y = rect.size.y - vtx.y - 1.0;
 
-			vtx -= rect.position; //offset by rect position
+				if (node->is_centered())
+					vtx -= rect.size / 2.0;
 
-			//flip if flipped
-			if (node->is_flipped_h())
-				vtx.x = rect.size.x - vtx.x - 1.0;
-			if (node->is_flipped_v())
-				vtx.y = rect.size.y - vtx.y - 1.0;
+				computed_vertices.push_back(vtx);
+			}
+
+			Vector<int> poly = Geometry::triangulate_polygon(lines[j]);
 
-			if (node->is_centered())
-				vtx -= rect.size / 2.0;
+			for (int i = 0; i < poly.size(); i += 3) {
+				for (int k = 0; k < 3; k++) {
+					int idx = i + k;
+					int idxn = i + (k + 1) % 3;
+					uv_lines.push_back(lines[j][poly[idx]]);
+					uv_lines.push_back(lines[j][poly[idxn]]);
 
-			computed_vertices.push_back(vtx);
+					computed_indices.push_back(poly[idx] + index_ofs);
+				}
+			}
 		}
+	}
 
-		Vector<int> poly = Geometry::triangulate_polygon(lines[j]);
+	outline_lines.clear();
+	computed_outline_lines.clear();
 
-		for (int i = 0; i < poly.size(); i += 3) {
-			for (int k = 0; k < 3; k++) {
-				int idx = i + k;
-				int idxn = i + (k + 1) % 3;
-				uv_lines.push_back(lines[j][poly[idx]]);
-				uv_lines.push_back(lines[j][poly[idxn]]);
+	if (selected_menu_item == MENU_OPTION_CONVERT_TO_POLYGON_2D || selected_menu_item == MENU_OPTION_CREATE_COLLISION_POLY_2D || selected_menu_item == MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D) {
+		outline_lines.resize(lines.size());
+		computed_outline_lines.resize(lines.size());
+		for (int pi = 0; pi < lines.size(); pi++) {
+
+			Vector<Vector2> ol;
+			Vector<Vector2> col;
+
+			ol.resize(lines[pi].size());
+			col.resize(lines[pi].size());
+
+			for (int i = 0; i < lines[pi].size(); i++) {
+				Vector2 vtx = lines[pi][i];
+
+				ol.write[i] = vtx;
+
+				vtx -= rect.position; //offset by rect position
+
+				//flip if flipped
+				if (node->is_flipped_h())
+					vtx.x = rect.size.x - vtx.x - 1.0;
+				if (node->is_flipped_v())
+					vtx.y = rect.size.y - vtx.y - 1.0;
+
+				if (node->is_centered())
+					vtx -= rect.size / 2.0;
 
-				computed_indices.push_back(poly[idx] + index_ofs);
+				col.write[i] = vtx;
 			}
+
+			outline_lines.write[pi] = ol;
+			computed_outline_lines.write[pi] = col;
 		}
 	}
 
 	debug_uv->update();
 }
 
-void SpriteEditor::_create_mesh_node() {
+void SpriteEditor::_create_node() {
+	switch (selected_menu_item) {
+		case MENU_OPTION_CONVERT_TO_MESH_2D: {
+			_convert_to_mesh_2d_node();
+		} break;
+		case MENU_OPTION_CONVERT_TO_POLYGON_2D: {
+			_convert_to_polygon_2d_node();
+		} break;
+		case MENU_OPTION_CREATE_COLLISION_POLY_2D: {
+			_create_collision_polygon_2d_node();
+		} break;
+		case MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D: {
+			_create_light_occluder_2d_node();
+		} break;
+	}
+}
+
+void SpriteEditor::_convert_to_mesh_2d_node() {
 
 	if (computed_vertices.size() < 3) {
 		err_dialog->set_text(TTR("Invalid geometry, can't replace by mesh."));
@@ -233,6 +330,117 @@ void SpriteEditor::_create_mesh_node() {
 	EditorNode::get_singleton()->get_scene_tree_dock()->replace_node(node, mesh_instance);
 }
 
+void SpriteEditor::_convert_to_polygon_2d_node() {
+	Polygon2D *polygon_2d_instance = memnew(Polygon2D);
+
+	int total_point_count = 0;
+	for (int i = 0; i < computed_outline_lines.size(); i++)
+		total_point_count += computed_outline_lines[i].size();
+
+	PoolVector2Array polygon;
+	polygon.resize(total_point_count);
+	PoolVector2Array::Write polygon_write = polygon.write();
+
+	PoolVector2Array uvs;
+	uvs.resize(total_point_count);
+	PoolVector2Array::Write uvs_write = uvs.write();
+
+	int current_point_index = 0;
+
+	Array polys;
+	polys.resize(computed_outline_lines.size());
+
+	for (int i = 0; i < computed_outline_lines.size(); i++) {
+
+		Vector<Vector2> outline = computed_outline_lines[i];
+		Vector<Vector2> uv_outline = outline_lines[i];
+
+		if (outline.size() < 3) {
+			err_dialog->set_text(TTR("Invalid geometry, can't create polygon."));
+			err_dialog->popup_centered_minsize();
+			return;
+		}
+
+		PoolIntArray pia;
+		pia.resize(outline.size());
+		PoolIntArray::Write pia_write = pia.write();
+
+		for (int pi = 0; pi < outline.size(); pi++) {
+			polygon_write[current_point_index] = outline[pi];
+			uvs_write[current_point_index] = uv_outline[pi];
+			pia_write[pi] = current_point_index;
+			current_point_index++;
+		}
+
+		polys[i] = pia;
+	}
+
+	polygon_2d_instance->set_uv(uvs);
+	polygon_2d_instance->set_polygon(polygon);
+	polygon_2d_instance->set_polygons(polys);
+
+	EditorNode::get_singleton()->get_scene_tree_dock()->replace_node(node, polygon_2d_instance);
+}
+
+void SpriteEditor::_create_collision_polygon_2d_node() {
+	for (int i = 0; i < computed_outline_lines.size(); i++) {
+
+		Vector<Vector2> outline = computed_outline_lines[i];
+
+		if (outline.size() < 3) {
+			err_dialog->set_text(TTR("Invalid geometry, can't create collision polygon."));
+			err_dialog->popup_centered_minsize();
+			continue;
+		}
+
+		CollisionPolygon2D *collision_polygon_2d_instance = memnew(CollisionPolygon2D);
+		collision_polygon_2d_instance->set_polygon(outline);
+
+		_add_as_sibling_or_child(node, collision_polygon_2d_instance);
+	}
+}
+
+void SpriteEditor::_create_light_occluder_2d_node() {
+	for (int i = 0; i < computed_outline_lines.size(); i++) {
+
+		Vector<Vector2> outline = computed_outline_lines[i];
+
+		if (outline.size() < 3) {
+			err_dialog->set_text(TTR("Invalid geometry, can't create light occluder."));
+			err_dialog->popup_centered_minsize();
+			continue;
+		}
+
+		Ref<OccluderPolygon2D> polygon;
+		polygon.instance();
+
+		PoolVector2Array a;
+		a.resize(outline.size());
+		PoolVector2Array::Write aw = a.write();
+		for (int io = 0; io < outline.size(); io++) {
+			aw[io] = outline[io];
+		}
+		polygon->set_polygon(a);
+
+		LightOccluder2D *light_occluder_2d_instance = memnew(LightOccluder2D);
+		light_occluder_2d_instance->set_occluder_polygon(polygon);
+
+		_add_as_sibling_or_child(node, light_occluder_2d_instance);
+	}
+}
+
+void SpriteEditor::_add_as_sibling_or_child(Node2D *p_own_node, Node2D *p_new_node) {
+	// Can't make sibling if own node is scene root
+	if (p_own_node != this->get_tree()->get_edited_scene_root()) {
+		p_own_node->get_parent()->add_child(p_new_node, true);
+		p_new_node->set_transform(p_own_node->get_transform());
+	} else {
+		p_own_node->add_child(p_new_node, true);
+	}
+
+	p_new_node->set_owner(this->get_tree()->get_edited_scene_root());
+}
+
 #if 0
 void SpriteEditor::_create_uv_lines() {
 
@@ -298,16 +506,26 @@ void SpriteEditor::_create_uv_lines() {
 #endif
 void SpriteEditor::_debug_uv_draw() {
 
-	if (uv_lines.size() == 0)
-		return;
-
 	Ref<Texture> tex = node->get_texture();
 	ERR_FAIL_COND(!tex.is_valid());
 	debug_uv->set_clip_contents(true);
 	debug_uv->draw_texture(tex, Point2());
 	debug_uv->set_custom_minimum_size(tex->get_size());
 	//debug_uv->draw_set_transform(Vector2(), 0, debug_uv->get_size());
-	debug_uv->draw_multiline(uv_lines, Color(1.0, 0.8, 0.7));
+
+	Color color = Color(1.0, 0.8, 0.7);
+
+	if (selected_menu_item == MENU_OPTION_CONVERT_TO_MESH_2D && uv_lines.size() > 0) {
+		debug_uv->draw_multiline(uv_lines, color);
+
+	} else if ((selected_menu_item == MENU_OPTION_CONVERT_TO_POLYGON_2D || selected_menu_item == MENU_OPTION_CREATE_COLLISION_POLY_2D || selected_menu_item == MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D) && outline_lines.size() > 0) {
+		for (int i = 0; i < outline_lines.size(); i++) {
+			Vector<Vector2> outline = outline_lines[i];
+
+			debug_uv->draw_polyline(outline, color);
+			debug_uv->draw_line(outline[0], outline[outline.size() - 1], color);
+		}
+	}
 }
 
 void SpriteEditor::_bind_methods() {
@@ -315,7 +533,7 @@ void SpriteEditor::_bind_methods() {
 	ClassDB::bind_method("_menu_option", &SpriteEditor::_menu_option);
 	ClassDB::bind_method("_debug_uv_draw", &SpriteEditor::_debug_uv_draw);
 	ClassDB::bind_method("_update_mesh_data", &SpriteEditor::_update_mesh_data);
-	ClassDB::bind_method("_create_mesh_node", &SpriteEditor::_create_mesh_node);
+	ClassDB::bind_method("_create_node", &SpriteEditor::_create_node);
 }
 
 SpriteEditor::SpriteEditor() {
@@ -327,7 +545,10 @@ SpriteEditor::SpriteEditor() {
 	options->set_text(TTR("Sprite"));
 	options->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("Sprite", "EditorIcons"));
 
-	options->get_popup()->add_item(TTR("Convert to 2D Mesh"), MENU_OPTION_CREATE_MESH_2D);
+	options->get_popup()->add_item(TTR("Convert to Mesh2D"), MENU_OPTION_CONVERT_TO_MESH_2D);
+	options->get_popup()->add_item(TTR("Convert to Polygon2D"), MENU_OPTION_CONVERT_TO_POLYGON_2D);
+	options->get_popup()->add_item(TTR("Create CollisionPolygon2D Sibling"), MENU_OPTION_CREATE_COLLISION_POLY_2D);
+	options->get_popup()->add_item(TTR("Create LightOccluder2D Sibling"), MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D);
 
 	options->get_popup()->connect("id_pressed", this, "_menu_option");
 
@@ -335,7 +556,7 @@ SpriteEditor::SpriteEditor() {
 	add_child(err_dialog);
 
 	debug_uv_dialog = memnew(ConfirmationDialog);
-	debug_uv_dialog->get_ok()->set_text(TTR("Create 2D Mesh"));
+	debug_uv_dialog->get_ok()->set_text(TTR("Create Mesh2D"));
 	debug_uv_dialog->set_title("Mesh 2D Preview");
 	VBoxContainer *vb = memnew(VBoxContainer);
 	debug_uv_dialog->add_child(vb);
@@ -347,7 +568,7 @@ SpriteEditor::SpriteEditor() {
 	debug_uv = memnew(Control);
 	debug_uv->connect("draw", this, "_debug_uv_draw");
 	scroll->add_child(debug_uv);
-	debug_uv_dialog->connect("confirmed", this, "_create_mesh_node");
+	debug_uv_dialog->connect("confirmed", this, "_create_node");
 
 	HBoxContainer *hb = memnew(HBoxContainer);
 	hb->add_child(memnew(Label(TTR("Simplification: "))));
diff --git a/editor/plugins/sprite_editor_plugin.h b/editor/plugins/sprite_editor_plugin.h
index 7250e3df59..460f5a5707 100644
--- a/editor/plugins/sprite_editor_plugin.h
+++ b/editor/plugins/sprite_editor_plugin.h
@@ -41,9 +41,14 @@ class SpriteEditor : public Control {
 	GDCLASS(SpriteEditor, Control);
 
 	enum Menu {
-		MENU_OPTION_CREATE_MESH_2D,
+		MENU_OPTION_CONVERT_TO_MESH_2D,
+		MENU_OPTION_CONVERT_TO_POLYGON_2D,
+		MENU_OPTION_CREATE_COLLISION_POLY_2D,
+		MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D
 	};
 
+	Menu selected_menu_item;
+
 	Sprite *node;
 
 	MenuButton *options;
@@ -55,7 +60,8 @@ class SpriteEditor : public Control {
 	ConfirmationDialog *debug_uv_dialog;
 	Control *debug_uv;
 	Vector<Vector2> uv_lines;
-
+	Vector<Vector<Vector2> > outline_lines;
+	Vector<Vector<Vector2> > computed_outline_lines;
 	Vector<Vector2> computed_vertices;
 	Vector<Vector2> computed_uv;
 	Vector<int> computed_indices;
@@ -71,7 +77,14 @@ class SpriteEditor : public Control {
 
 	void _debug_uv_draw();
 	void _update_mesh_data();
-	void _create_mesh_node();
+
+	void _create_node();
+	void _convert_to_mesh_2d_node();
+	void _convert_to_polygon_2d_node();
+	void _create_collision_polygon_2d_node();
+	void _create_light_occluder_2d_node();
+
+	void _add_as_sibling_or_child(Node2D *p_own_node, Node2D *p_new_node);
 
 protected:
 	void _node_removed(Node *p_node);