Merge pull request #38387 from Rhathe/set_iterations

[3.x] Enable setting of collision iterations in Physics2DServer

doc/classes/Physics2DServer.xml

@@ -1003,6 +1003,15 @@
 				Activates or deactivates the 2D physics engine.
 			</description>
 		</method>
+		<method name="set_collision_iterations">
+			<return type="void">
+			</return>
+			<argument index="0" name="iterations" type="int">
+			</argument>
+			<description>
+				Sets the amount of iterations for calculating velocities of colliding bodies. The greater the amount, the more accurate the collisions, but with a performance loss.
+			</description>
+		</method>
 		<method name="shape_get_data" qualifiers="const">
 			<return type="Variant">
 			</return>

servers/physics_2d/physics_2d_server_sw.cpp

@@ -1195,6 +1195,10 @@ void Physics2DServerSW::set_active(bool p_active) {
 	active = p_active;
 };
 
+void Physics2DServerSW::set_collision_iterations(int p_iterations) {
+	iterations = p_iterations;
+};
+
 void Physics2DServerSW::init() {
 	doing_sync = false;
 	last_step = 0.001;

servers/physics_2d/physics_2d_server_sw.h

@@ -282,6 +282,8 @@ public:
 	virtual void end_sync();
 	virtual void finish();
 
+	virtual void set_collision_iterations(int p_iterations);
+
 	virtual bool is_flushing_queries() const { return flushing_queries; }
 
 	int get_process_info(ProcessInfo p_info);

servers/physics_2d/physics_2d_server_wrap_mt.h

@@ -297,6 +297,7 @@ public:
 
 	FUNC1(free, RID);
 	FUNC1(set_active, bool);
+	FUNC1(set_collision_iterations, int);
 
 	virtual void init();
 	virtual void step(real_t p_step);

servers/physics_2d_server.cpp

@@ -649,6 +649,8 @@ void Physics2DServer::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_active", "active"), &Physics2DServer::set_active);
 
+	ClassDB::bind_method(D_METHOD("set_collision_iterations", "iterations"), &Physics2DServer::set_collision_iterations);
+
 	ClassDB::bind_method(D_METHOD("get_process_info", "process_info"), &Physics2DServer::get_process_info);
 
 	BIND_ENUM_CONSTANT(SPACE_PARAM_CONTACT_RECYCLE_RADIUS);

servers/physics_2d_server.h

@@ -583,6 +583,8 @@ public:
 
 	virtual bool is_flushing_queries() const = 0;
 
+	virtual void set_collision_iterations(int iterations) = 0;
+
 	enum ProcessInfo {
 
 		INFO_ACTIVE_OBJECTS,