initial commit, 4.5 stable

scene/resources/2d/separation_ray_shape_2d.cpp

@@ -0,0 +1,123 @@
+/**************************************************************************/
+/*  separation_ray_shape_2d.cpp                                           */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#include "separation_ray_shape_2d.h"
+
+#include "servers/physics_server_2d.h"
+#include "servers/rendering_server.h"
+
+void SeparationRayShape2D::_update_shape() {
+	Dictionary d;
+	d["length"] = length;
+	d["slide_on_slope"] = slide_on_slope;
+	PhysicsServer2D::get_singleton()->shape_set_data(get_rid(), d);
+	emit_changed();
+}
+
+void SeparationRayShape2D::draw(const RID &p_to_rid, const Color &p_color) {
+	const Vector2 target_position = Vector2(0, get_length());
+
+	const float max_arrow_size = 6;
+	const float line_width = 1.4;
+	bool no_line = target_position.length() < line_width;
+	float arrow_size = CLAMP(target_position.length() * 2 / 3, line_width, max_arrow_size);
+
+	if (no_line) {
+		arrow_size = target_position.length();
+	} else {
+		RS::get_singleton()->canvas_item_add_line(p_to_rid, Vector2(), target_position - target_position.normalized() * arrow_size, p_color, line_width);
+	}
+
+	Transform2D xf;
+	xf.rotate(target_position.angle());
+	xf.translate_local(Vector2(no_line ? 0 : target_position.length() - arrow_size, 0));
+
+	Vector<Vector2> pts = {
+		xf.xform(Vector2(arrow_size, 0)),
+		xf.xform(Vector2(0, 0.5 * arrow_size)),
+		xf.xform(Vector2(0, -0.5 * arrow_size))
+	};
+
+	Vector<Color> cols = { p_color, p_color, p_color };
+
+	RS::get_singleton()->canvas_item_add_primitive(p_to_rid, pts, cols, Vector<Point2>(), RID());
+}
+
+Rect2 SeparationRayShape2D::get_rect() const {
+	Rect2 rect;
+	rect.position = Vector2();
+	rect.expand_to(Vector2(0, length));
+	rect = rect.grow(Math::SQRT12 * 4);
+	return rect;
+}
+
+real_t SeparationRayShape2D::get_enclosing_radius() const {
+	return length;
+}
+
+void SeparationRayShape2D::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("set_length", "length"), &SeparationRayShape2D::set_length);
+	ClassDB::bind_method(D_METHOD("get_length"), &SeparationRayShape2D::get_length);
+
+	ClassDB::bind_method(D_METHOD("set_slide_on_slope", "active"), &SeparationRayShape2D::set_slide_on_slope);
+	ClassDB::bind_method(D_METHOD("get_slide_on_slope"), &SeparationRayShape2D::get_slide_on_slope);
+
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "length", PROPERTY_HINT_RANGE, "0.01,1024,0.01,or_greater,suffix:px"), "set_length", "get_length");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "slide_on_slope"), "set_slide_on_slope", "get_slide_on_slope");
+}
+
+void SeparationRayShape2D::set_length(real_t p_length) {
+	if (length == p_length) {
+		return;
+	}
+	length = p_length;
+	_update_shape();
+}
+
+real_t SeparationRayShape2D::get_length() const {
+	return length;
+}
+
+void SeparationRayShape2D::set_slide_on_slope(bool p_active) {
+	if (slide_on_slope == p_active) {
+		return;
+	}
+	slide_on_slope = p_active;
+	_update_shape();
+}
+
+bool SeparationRayShape2D::get_slide_on_slope() const {
+	return slide_on_slope;
+}
+
+SeparationRayShape2D::SeparationRayShape2D() :
+		Shape2D(PhysicsServer2D::get_singleton()->separation_ray_shape_create()) {
+	_update_shape();
+}