GODOT IS OPEN SOURCE

1 files changed, 412 insertions, 0 deletions

diff --git a/scene/2d/joints_2d.cpp b/scene/2d/joints_2d.cpp
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+++ b/scene/2d/joints_2d.cpp
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+/*************************************************************************/
+/*  joints_2d.cpp                                                        */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* 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 "joints_2d.h"
+#include "servers/physics_2d_server.h"
+#include "physics_body_2d.h"
+
+void Joint2D::_update_joint() {
+
+	if (!is_inside_scene())
+		return;
+
+	if (joint.is_valid()) {
+		Physics2DServer::get_singleton()->free(joint);
+	}
+
+	joint=RID();
+
+
+	joint = _configure_joint();
+	Physics2DServer::get_singleton()->get_singleton()->joint_set_param(joint,Physics2DServer::JOINT_PARAM_BIAS,bias);
+
+
+}
+
+
+void Joint2D::set_node_a(const NodePath& p_node_a) {
+
+
+	if (a==p_node_a)
+		return;
+
+	a=p_node_a;
+	_update_joint();
+}
+
+NodePath Joint2D::get_node_a() const{
+
+	return a;
+}
+
+void Joint2D::set_node_b(const NodePath& p_node_b){
+
+	if (b==p_node_b)
+		return;
+	b=p_node_b;
+	_update_joint();
+
+}
+NodePath Joint2D::get_node_b() const{
+
+
+	return b;
+}
+
+
+void Joint2D::_notification(int p_what) {
+
+	switch(p_what) {
+
+		case NOTIFICATION_READY: {
+			_update_joint();
+		} break;
+		case NOTIFICATION_EXIT_SCENE: {
+			if (joint.is_valid()) {
+
+				Physics2DServer::get_singleton()->free(joint);
+				joint=RID();
+			}
+		} break;
+
+	}
+
+}
+
+void Joint2D::set_bias(real_t p_bias) {
+
+	bias=p_bias;
+	if (joint.is_valid())
+		Physics2DServer::get_singleton()->get_singleton()->joint_set_param(joint,Physics2DServer::JOINT_PARAM_BIAS,bias);
+}
+
+real_t Joint2D::get_bias() const{
+
+
+	return bias;
+}
+
+
+void Joint2D::_bind_methods() {
+
+
+	ObjectTypeDB::bind_method( _MD("set_node_a","node"), &Joint2D::set_node_a );
+	ObjectTypeDB::bind_method( _MD("get_node_a"), &Joint2D::get_node_a );
+
+	ObjectTypeDB::bind_method( _MD("set_node_b","node"), &Joint2D::set_node_b );
+	ObjectTypeDB::bind_method( _MD("get_node_b"), &Joint2D::get_node_b );
+
+	ObjectTypeDB::bind_method( _MD("set_bias","bias"), &Joint2D::set_bias );
+	ObjectTypeDB::bind_method( _MD("get_bias"), &Joint2D::get_bias );
+
+	ADD_PROPERTY( PropertyInfo( Variant::NODE_PATH, "node_a"), _SCS("set_node_a"),_SCS("get_node_a") );
+	ADD_PROPERTY( PropertyInfo( Variant::NODE_PATH, "node_b"), _SCS("set_node_b"),_SCS("get_node_b") );
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "bias/bias",PROPERTY_HINT_RANGE,"0,0.9,0.01"), _SCS("set_bias"),_SCS("get_bias") );
+
+}
+
+
+
+Joint2D::Joint2D() {
+
+	bias=0;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+void PinJoint2D::_notification(int p_what) {
+
+	switch(p_what) {
+		case NOTIFICATION_DRAW: {
+			if (is_inside_scene() && get_scene()->is_editor_hint()) {
+
+				draw_line(Point2(-10,0),Point2(+10,0),Color(0.7,0.6,0.0,0.5),3);
+				draw_line(Point2(0,-10),Point2(0,+10),Color(0.7,0.6,0.0,0.5),3);
+			}
+		} break;
+	}
+
+}
+
+RID PinJoint2D::_configure_joint() {
+
+	Node *node_a = has_node( get_node_a() ) ? get_node( get_node_a() ) : (Node*)NULL;
+	Node *node_b = has_node( get_node_b() ) ? get_node( get_node_b() ) : (Node*)NULL;
+
+	if (!node_a && !node_b)
+		return RID();
+
+	PhysicsBody2D *body_a=node_a ? node_a->cast_to<PhysicsBody2D>() : (PhysicsBody2D*)NULL;
+	PhysicsBody2D *body_b=node_b ? node_b->cast_to<PhysicsBody2D>() : (PhysicsBody2D*)NULL;
+
+	if (!body_a && !body_b)
+		return RID();
+
+	if (!body_a) {
+		SWAP(body_a,body_b);
+	} else if (body_b) {
+		//add a collision exception between both
+		Physics2DServer::get_singleton()->body_add_collision_exception(body_a->get_rid(),body_b->get_rid());
+	}
+
+	return Physics2DServer::get_singleton()->pin_joint_create(get_global_transform().get_origin(),body_a->get_rid(),body_b?body_b->get_rid():RID());
+
+}
+
+
+PinJoint2D::PinJoint2D() {
+
+
+}
+
+
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+
+void GrooveJoint2D::_notification(int p_what) {
+
+	switch(p_what) {
+		case NOTIFICATION_DRAW: {
+			if (is_inside_scene() && get_scene()->is_editor_hint()) {
+
+				draw_line(Point2(-10,0),Point2(+10,0),Color(0.7,0.6,0.0,0.5),3);
+				draw_line(Point2(-10,length),Point2(+10,length),Color(0.7,0.6,0.0,0.5),3);
+				draw_line(Point2(0,0),Point2(0,length),Color(0.7,0.6,0.0,0.5),3);
+				draw_line(Point2(-10,initial_offset),Point2(+10,initial_offset),Color(0.8,0.8,0.9,0.5),5);
+			}
+		} break;
+	}
+}
+
+RID GrooveJoint2D::_configure_joint(){
+
+
+	Node *node_a = has_node( get_node_a() ) ? get_node( get_node_a() ) : (Node*)NULL;
+	Node *node_b = has_node( get_node_b() ) ? get_node( get_node_b() ) : (Node*)NULL;
+
+	if (!node_a || !node_b)
+		return RID();
+
+	PhysicsBody2D *body_a=node_a->cast_to<PhysicsBody2D>();
+	PhysicsBody2D *body_b=node_b->cast_to<PhysicsBody2D>();
+
+	if (!body_a || !body_b)
+		return RID();
+
+	Physics2DServer::get_singleton()->body_add_collision_exception(body_a->get_rid(),body_b->get_rid());
+
+	Matrix32 gt = get_global_transform();
+	Vector2 groove_A1 = gt.get_origin();
+	Vector2 groove_A2 = gt.xform( Vector2(0,length) );
+	Vector2 anchor_B = gt.xform( Vector2(0,initial_offset) );
+
+
+	return Physics2DServer::get_singleton()->groove_joint_create(groove_A1,groove_A2,anchor_B,body_a->get_rid(),body_b->get_rid());
+}
+
+
+void GrooveJoint2D::set_length(real_t p_length) {
+
+	length=p_length;
+	update();
+}
+
+real_t GrooveJoint2D::get_length() const {
+
+	return length;
+}
+
+
+void GrooveJoint2D::set_initial_offset(real_t p_initial_offset) {
+
+	initial_offset=p_initial_offset;
+	update();
+}
+
+real_t GrooveJoint2D::get_initial_offset() const {
+
+	return initial_offset;
+}
+
+
+
+void GrooveJoint2D::_bind_methods() {
+
+
+	ObjectTypeDB::bind_method(_MD("set_length","length"),&GrooveJoint2D::set_length);
+	ObjectTypeDB::bind_method(_MD("get_length"),&GrooveJoint2D::get_length);
+	ObjectTypeDB::bind_method(_MD("set_initial_offset","offset"),&GrooveJoint2D::set_initial_offset);
+	ObjectTypeDB::bind_method(_MD("get_initial_offset"),&GrooveJoint2D::get_initial_offset);
+
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "length", PROPERTY_HINT_EXP_RANGE,"1,65535,1"), _SCS("set_length"),_SCS("get_length"));
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "initial_offset", PROPERTY_HINT_EXP_RANGE,"1,65535,1"), _SCS("set_initial_offset"),_SCS("get_initial_offset"));
+}
+
+GrooveJoint2D::GrooveJoint2D() {
+
+	length=50;
+	initial_offset=25;
+}
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+
+
+void DampedSpringJoint2D::_notification(int p_what) {
+
+	switch(p_what) {
+		case NOTIFICATION_DRAW: {
+			if (is_inside_scene() && get_scene()->is_editor_hint()) {
+
+				draw_line(Point2(-10,0),Point2(+10,0),Color(0.7,0.6,0.0,0.5),3);
+				draw_line(Point2(-10,length),Point2(+10,length),Color(0.7,0.6,0.0,0.5),3);
+				draw_line(Point2(0,0),Point2(0,length),Color(0.7,0.6,0.0,0.5),3);
+			}
+		} break;
+	}
+}
+
+RID DampedSpringJoint2D::_configure_joint(){
+
+
+	Node *node_a = has_node( get_node_a() ) ? get_node( get_node_a() ) : (Node*)NULL;
+	Node *node_b = has_node( get_node_b() ) ? get_node( get_node_b() ) : (Node*)NULL;
+
+	if (!node_a || !node_b)
+		return RID();
+
+	PhysicsBody2D *body_a=node_a->cast_to<PhysicsBody2D>();
+	PhysicsBody2D *body_b=node_b->cast_to<PhysicsBody2D>();
+
+	if (!body_a || !body_b)
+		return RID();
+
+	Physics2DServer::get_singleton()->body_add_collision_exception(body_a->get_rid(),body_b->get_rid());
+
+	Matrix32 gt = get_global_transform();
+	Vector2 anchor_A = gt.get_origin();
+	Vector2 anchor_B = gt.xform( Vector2(0,length) );
+
+	RID dsj = Physics2DServer::get_singleton()->damped_spring_joint_create(anchor_A,anchor_B,body_a->get_rid(),body_b->get_rid());
+	if (rest_length)
+		Physics2DServer::get_singleton()->damped_string_joint_set_param(dsj,Physics2DServer::DAMPED_STRING_REST_LENGTH,rest_length);
+	Physics2DServer::get_singleton()->damped_string_joint_set_param(dsj,Physics2DServer::DAMPED_STRING_STIFFNESS,stiffness);
+	Physics2DServer::get_singleton()->damped_string_joint_set_param(dsj,Physics2DServer::DAMPED_STRING_DAMPING,damping);
+
+	return dsj;
+}
+
+
+void DampedSpringJoint2D::set_length(real_t p_length) {
+
+	length=p_length;
+	update();
+}
+
+real_t DampedSpringJoint2D::get_length() const {
+
+	return length;
+}
+
+void DampedSpringJoint2D::set_rest_length(real_t p_rest_length) {
+
+	rest_length=p_rest_length;
+	update();
+	if (get_joint().is_valid())
+		Physics2DServer::get_singleton()->damped_string_joint_set_param(get_joint(),Physics2DServer::DAMPED_STRING_REST_LENGTH,p_rest_length?p_rest_length:length);
+
+}
+
+real_t DampedSpringJoint2D::get_rest_length() const {
+
+	return rest_length;
+}
+
+void DampedSpringJoint2D::set_stiffness(real_t p_stiffness) {
+
+	stiffness=p_stiffness;
+	update();
+	if (get_joint().is_valid())
+		Physics2DServer::get_singleton()->damped_string_joint_set_param(get_joint(),Physics2DServer::DAMPED_STRING_STIFFNESS,p_stiffness);
+}
+
+real_t DampedSpringJoint2D::get_stiffness() const {
+
+	return stiffness;
+}
+
+void DampedSpringJoint2D::set_damping(real_t p_damping) {
+
+	damping=p_damping;
+	update();
+	if (get_joint().is_valid())
+		Physics2DServer::get_singleton()->damped_string_joint_set_param(get_joint(),Physics2DServer::DAMPED_STRING_DAMPING,p_damping);
+}
+
+real_t DampedSpringJoint2D::get_damping() const {
+
+	return damping;
+}
+
+
+void DampedSpringJoint2D::_bind_methods() {
+
+
+	ObjectTypeDB::bind_method(_MD("set_length","length"),&DampedSpringJoint2D::set_length);
+	ObjectTypeDB::bind_method(_MD("get_length"),&DampedSpringJoint2D::get_length);
+	ObjectTypeDB::bind_method(_MD("set_rest_length","rest_length"),&DampedSpringJoint2D::set_rest_length);
+	ObjectTypeDB::bind_method(_MD("get_rest_length"),&DampedSpringJoint2D::get_rest_length);
+	ObjectTypeDB::bind_method(_MD("set_stiffness","stiffness"),&DampedSpringJoint2D::set_stiffness);
+	ObjectTypeDB::bind_method(_MD("get_stiffness"),&DampedSpringJoint2D::get_stiffness);
+	ObjectTypeDB::bind_method(_MD("set_damping","damping"),&DampedSpringJoint2D::set_damping);
+	ObjectTypeDB::bind_method(_MD("get_damping"),&DampedSpringJoint2D::get_damping);
+
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "length", PROPERTY_HINT_EXP_RANGE,"1,65535,1"), _SCS("set_length"),_SCS("get_length"));
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "rest_length", PROPERTY_HINT_EXP_RANGE,"0,65535,1"), _SCS("set_rest_length"),_SCS("get_rest_length"));
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "stiffness", PROPERTY_HINT_EXP_RANGE,"0.1,64,0.1"), _SCS("set_stiffness"),_SCS("get_stiffness"));
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "damping", PROPERTY_HINT_EXP_RANGE,"0.01,16,0.01"), _SCS("set_damping"),_SCS("get_damping"));
+
+}
+
+DampedSpringJoint2D::DampedSpringJoint2D() {
+
+	length=50;
+	rest_length=0;
+	stiffness=20;
+	damping=1;
+}