godot-module-template/engine/scene/2d/physics/static_body_2d.cpp

234 lines
11 KiB
C++

/**************************************************************************/
/* static_body_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 */
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/**************************************************************************/
#include "static_body_2d.h"
#include "scene/resources/2d/capsule_shape_2d.h"
#include "scene/resources/2d/circle_shape_2d.h"
#include "scene/resources/2d/concave_polygon_shape_2d.h"
#include "scene/resources/2d/convex_polygon_shape_2d.h"
#include "scene/resources/2d/navigation_mesh_source_geometry_data_2d.h"
#include "scene/resources/2d/navigation_polygon.h"
#include "scene/resources/2d/rectangle_shape_2d.h"
#include "servers/navigation_server_2d.h"
Callable StaticBody2D::_navmesh_source_geometry_parsing_callback;
RID StaticBody2D::_navmesh_source_geometry_parser;
void StaticBody2D::set_constant_linear_velocity(const Vector2 &p_vel) {
constant_linear_velocity = p_vel;
PhysicsServer2D::get_singleton()->body_set_state(get_rid(), PhysicsServer2D::BODY_STATE_LINEAR_VELOCITY, constant_linear_velocity);
}
void StaticBody2D::set_constant_angular_velocity(real_t p_vel) {
constant_angular_velocity = p_vel;
PhysicsServer2D::get_singleton()->body_set_state(get_rid(), PhysicsServer2D::BODY_STATE_ANGULAR_VELOCITY, constant_angular_velocity);
}
Vector2 StaticBody2D::get_constant_linear_velocity() const {
return constant_linear_velocity;
}
real_t StaticBody2D::get_constant_angular_velocity() const {
return constant_angular_velocity;
}
void StaticBody2D::set_physics_material_override(const Ref<PhysicsMaterial> &p_physics_material_override) {
if (physics_material_override.is_valid()) {
physics_material_override->disconnect_changed(callable_mp(this, &StaticBody2D::_reload_physics_characteristics));
}
physics_material_override = p_physics_material_override;
if (physics_material_override.is_valid()) {
physics_material_override->connect_changed(callable_mp(this, &StaticBody2D::_reload_physics_characteristics));
}
_reload_physics_characteristics();
}
Ref<PhysicsMaterial> StaticBody2D::get_physics_material_override() const {
return physics_material_override;
}
void StaticBody2D::_reload_physics_characteristics() {
if (physics_material_override.is_null()) {
PhysicsServer2D::get_singleton()->body_set_param(get_rid(), PhysicsServer2D::BODY_PARAM_BOUNCE, 0);
PhysicsServer2D::get_singleton()->body_set_param(get_rid(), PhysicsServer2D::BODY_PARAM_FRICTION, 1);
} else {
PhysicsServer2D::get_singleton()->body_set_param(get_rid(), PhysicsServer2D::BODY_PARAM_BOUNCE, physics_material_override->computed_bounce());
PhysicsServer2D::get_singleton()->body_set_param(get_rid(), PhysicsServer2D::BODY_PARAM_FRICTION, physics_material_override->computed_friction());
}
}
void StaticBody2D::navmesh_parse_init() {
ERR_FAIL_NULL(NavigationServer2D::get_singleton());
if (!_navmesh_source_geometry_parser.is_valid()) {
_navmesh_source_geometry_parsing_callback = callable_mp_static(&StaticBody2D::navmesh_parse_source_geometry);
_navmesh_source_geometry_parser = NavigationServer2D::get_singleton()->source_geometry_parser_create();
NavigationServer2D::get_singleton()->source_geometry_parser_set_callback(_navmesh_source_geometry_parser, _navmesh_source_geometry_parsing_callback);
}
}
void StaticBody2D::navmesh_parse_source_geometry(const Ref<NavigationPolygon> &p_navigation_mesh, Ref<NavigationMeshSourceGeometryData2D> p_source_geometry_data, Node *p_node) {
StaticBody2D *static_body = Object::cast_to<StaticBody2D>(p_node);
if (static_body == nullptr) {
return;
}
NavigationPolygon::ParsedGeometryType parsed_geometry_type = p_navigation_mesh->get_parsed_geometry_type();
if (!(parsed_geometry_type == NavigationPolygon::PARSED_GEOMETRY_STATIC_COLLIDERS || parsed_geometry_type == NavigationPolygon::PARSED_GEOMETRY_BOTH)) {
return;
}
uint32_t parsed_collision_mask = p_navigation_mesh->get_parsed_collision_mask();
if (!(static_body->get_collision_layer() & parsed_collision_mask)) {
return;
}
List<uint32_t> shape_owners;
static_body->get_shape_owners(&shape_owners);
for (uint32_t shape_owner : shape_owners) {
if (static_body->is_shape_owner_disabled(shape_owner)) {
continue;
}
const int shape_count = static_body->shape_owner_get_shape_count(shape_owner);
for (int shape_index = 0; shape_index < shape_count; shape_index++) {
Ref<Shape2D> s = static_body->shape_owner_get_shape(shape_owner, shape_index);
if (s.is_null()) {
continue;
}
const Transform2D static_body_xform = p_source_geometry_data->root_node_transform * static_body->get_global_transform() * static_body->shape_owner_get_transform(shape_owner);
RectangleShape2D *rectangle_shape = Object::cast_to<RectangleShape2D>(*s);
if (rectangle_shape) {
Vector<Vector2> shape_outline;
const Vector2 &rectangle_size = rectangle_shape->get_size();
shape_outline.resize(5);
shape_outline.write[0] = static_body_xform.xform(-rectangle_size * 0.5);
shape_outline.write[1] = static_body_xform.xform(Vector2(rectangle_size.x, -rectangle_size.y) * 0.5);
shape_outline.write[2] = static_body_xform.xform(rectangle_size * 0.5);
shape_outline.write[3] = static_body_xform.xform(Vector2(-rectangle_size.x, rectangle_size.y) * 0.5);
shape_outline.write[4] = static_body_xform.xform(-rectangle_size * 0.5);
p_source_geometry_data->add_obstruction_outline(shape_outline);
}
CapsuleShape2D *capsule_shape = Object::cast_to<CapsuleShape2D>(*s);
if (capsule_shape) {
const real_t capsule_height = capsule_shape->get_height();
const real_t capsule_radius = capsule_shape->get_radius();
Vector<Vector2> shape_outline;
const real_t turn_step = Math_TAU / 12.0;
shape_outline.resize(14);
int shape_outline_inx = 0;
for (int i = 0; i < 12; i++) {
Vector2 ofs = Vector2(0, (i > 3 && i <= 9) ? -capsule_height * 0.5 + capsule_radius : capsule_height * 0.5 - capsule_radius);
shape_outline.write[shape_outline_inx] = static_body_xform.xform(Vector2(Math::sin(i * turn_step), Math::cos(i * turn_step)) * capsule_radius + ofs);
shape_outline_inx += 1;
if (i == 3 || i == 9) {
shape_outline.write[shape_outline_inx] = static_body_xform.xform(Vector2(Math::sin(i * turn_step), Math::cos(i * turn_step)) * capsule_radius - ofs);
shape_outline_inx += 1;
}
}
p_source_geometry_data->add_obstruction_outline(shape_outline);
}
CircleShape2D *circle_shape = Object::cast_to<CircleShape2D>(*s);
if (circle_shape) {
const real_t circle_radius = circle_shape->get_radius();
Vector<Vector2> shape_outline;
int circle_edge_count = 12;
shape_outline.resize(circle_edge_count);
const real_t turn_step = Math_TAU / real_t(circle_edge_count);
for (int i = 0; i < circle_edge_count; i++) {
shape_outline.write[i] = static_body_xform.xform(Vector2(Math::cos(i * turn_step), Math::sin(i * turn_step)) * circle_radius);
}
p_source_geometry_data->add_obstruction_outline(shape_outline);
}
ConcavePolygonShape2D *concave_polygon_shape = Object::cast_to<ConcavePolygonShape2D>(*s);
if (concave_polygon_shape) {
Vector<Vector2> shape_outline = concave_polygon_shape->get_segments();
for (int i = 0; i < shape_outline.size(); i++) {
shape_outline.write[i] = static_body_xform.xform(shape_outline[i]);
}
p_source_geometry_data->add_obstruction_outline(shape_outline);
}
ConvexPolygonShape2D *convex_polygon_shape = Object::cast_to<ConvexPolygonShape2D>(*s);
if (convex_polygon_shape) {
Vector<Vector2> shape_outline = convex_polygon_shape->get_points();
for (int i = 0; i < shape_outline.size(); i++) {
shape_outline.write[i] = static_body_xform.xform(shape_outline[i]);
}
p_source_geometry_data->add_obstruction_outline(shape_outline);
}
}
}
}
void StaticBody2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_constant_linear_velocity", "vel"), &StaticBody2D::set_constant_linear_velocity);
ClassDB::bind_method(D_METHOD("set_constant_angular_velocity", "vel"), &StaticBody2D::set_constant_angular_velocity);
ClassDB::bind_method(D_METHOD("get_constant_linear_velocity"), &StaticBody2D::get_constant_linear_velocity);
ClassDB::bind_method(D_METHOD("get_constant_angular_velocity"), &StaticBody2D::get_constant_angular_velocity);
ClassDB::bind_method(D_METHOD("set_physics_material_override", "physics_material_override"), &StaticBody2D::set_physics_material_override);
ClassDB::bind_method(D_METHOD("get_physics_material_override"), &StaticBody2D::get_physics_material_override);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "physics_material_override", PROPERTY_HINT_RESOURCE_TYPE, "PhysicsMaterial"), "set_physics_material_override", "get_physics_material_override");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "constant_linear_velocity", PROPERTY_HINT_NONE, "suffix:px/s"), "set_constant_linear_velocity", "get_constant_linear_velocity");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "constant_angular_velocity", PROPERTY_HINT_NONE, U"radians_as_degrees,suffix:\u00B0/s"), "set_constant_angular_velocity", "get_constant_angular_velocity");
}
StaticBody2D::StaticBody2D(PhysicsServer2D::BodyMode p_mode) :
PhysicsBody2D(p_mode) {
}