mirror of
https://github.com/godotengine/godot.git
synced 2024-12-15 10:12:40 +08:00
343 lines
11 KiB
C++
343 lines
11 KiB
C++
/*************************************************************************/
|
|
/* ray_cast_2d.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* 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 "ray_cast_2d.h"
|
|
|
|
#include "collision_object_2d.h"
|
|
#include "core/config/engine.h"
|
|
#include "physics_body_2d.h"
|
|
#include "servers/physics_server_2d.h"
|
|
|
|
void RayCast2D::set_target_position(const Vector2 &p_point) {
|
|
target_position = p_point;
|
|
if (is_inside_tree() && (Engine::get_singleton()->is_editor_hint() || get_tree()->is_debugging_collisions_hint())) {
|
|
update();
|
|
}
|
|
}
|
|
|
|
Vector2 RayCast2D::get_target_position() const {
|
|
return target_position;
|
|
}
|
|
|
|
void RayCast2D::set_collision_mask(uint32_t p_mask) {
|
|
collision_mask = p_mask;
|
|
}
|
|
|
|
uint32_t RayCast2D::get_collision_mask() const {
|
|
return collision_mask;
|
|
}
|
|
|
|
void RayCast2D::set_collision_mask_bit(int p_bit, bool p_value) {
|
|
uint32_t mask = get_collision_mask();
|
|
if (p_value) {
|
|
mask |= 1 << p_bit;
|
|
} else {
|
|
mask &= ~(1 << p_bit);
|
|
}
|
|
set_collision_mask(mask);
|
|
}
|
|
|
|
bool RayCast2D::get_collision_mask_bit(int p_bit) const {
|
|
return get_collision_mask() & (1 << p_bit);
|
|
}
|
|
|
|
bool RayCast2D::is_colliding() const {
|
|
return collided;
|
|
}
|
|
|
|
Object *RayCast2D::get_collider() const {
|
|
if (against.is_null()) {
|
|
return nullptr;
|
|
}
|
|
|
|
return ObjectDB::get_instance(against);
|
|
}
|
|
|
|
int RayCast2D::get_collider_shape() const {
|
|
return against_shape;
|
|
}
|
|
|
|
Vector2 RayCast2D::get_collision_point() const {
|
|
return collision_point;
|
|
}
|
|
|
|
Vector2 RayCast2D::get_collision_normal() const {
|
|
return collision_normal;
|
|
}
|
|
|
|
void RayCast2D::set_enabled(bool p_enabled) {
|
|
enabled = p_enabled;
|
|
update();
|
|
if (is_inside_tree() && !Engine::get_singleton()->is_editor_hint()) {
|
|
set_physics_process_internal(p_enabled);
|
|
}
|
|
if (!p_enabled) {
|
|
collided = false;
|
|
}
|
|
}
|
|
|
|
bool RayCast2D::is_enabled() const {
|
|
return enabled;
|
|
}
|
|
|
|
void RayCast2D::set_exclude_parent_body(bool p_exclude_parent_body) {
|
|
if (exclude_parent_body == p_exclude_parent_body) {
|
|
return;
|
|
}
|
|
|
|
exclude_parent_body = p_exclude_parent_body;
|
|
|
|
if (!is_inside_tree()) {
|
|
return;
|
|
}
|
|
|
|
if (Object::cast_to<CollisionObject2D>(get_parent())) {
|
|
if (exclude_parent_body) {
|
|
exclude.insert(Object::cast_to<CollisionObject2D>(get_parent())->get_rid());
|
|
} else {
|
|
exclude.erase(Object::cast_to<CollisionObject2D>(get_parent())->get_rid());
|
|
}
|
|
}
|
|
}
|
|
|
|
bool RayCast2D::get_exclude_parent_body() const {
|
|
return exclude_parent_body;
|
|
}
|
|
|
|
void RayCast2D::_notification(int p_what) {
|
|
switch (p_what) {
|
|
case NOTIFICATION_ENTER_TREE: {
|
|
if (enabled && !Engine::get_singleton()->is_editor_hint()) {
|
|
set_physics_process_internal(true);
|
|
} else {
|
|
set_physics_process_internal(false);
|
|
}
|
|
|
|
if (Object::cast_to<CollisionObject2D>(get_parent())) {
|
|
if (exclude_parent_body) {
|
|
exclude.insert(Object::cast_to<CollisionObject2D>(get_parent())->get_rid());
|
|
} else {
|
|
exclude.erase(Object::cast_to<CollisionObject2D>(get_parent())->get_rid());
|
|
}
|
|
}
|
|
} break;
|
|
case NOTIFICATION_EXIT_TREE: {
|
|
if (enabled) {
|
|
set_physics_process_internal(false);
|
|
}
|
|
|
|
} break;
|
|
|
|
case NOTIFICATION_DRAW: {
|
|
if (!Engine::get_singleton()->is_editor_hint() && !get_tree()->is_debugging_collisions_hint()) {
|
|
break;
|
|
}
|
|
_draw_debug_shape();
|
|
|
|
} break;
|
|
|
|
case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: {
|
|
if (!enabled) {
|
|
break;
|
|
}
|
|
|
|
_update_raycast_state();
|
|
|
|
} break;
|
|
}
|
|
}
|
|
|
|
void RayCast2D::_update_raycast_state() {
|
|
Ref<World2D> w2d = get_world_2d();
|
|
ERR_FAIL_COND(w2d.is_null());
|
|
|
|
PhysicsDirectSpaceState2D *dss = PhysicsServer2D::get_singleton()->space_get_direct_state(w2d->get_space());
|
|
ERR_FAIL_COND(!dss);
|
|
|
|
Transform2D gt = get_global_transform();
|
|
|
|
Vector2 to = target_position;
|
|
if (to == Vector2()) {
|
|
to = Vector2(0, 0.01);
|
|
}
|
|
|
|
PhysicsDirectSpaceState2D::RayResult rr;
|
|
bool prev_collision_state = collided;
|
|
if (dss->intersect_ray(gt.get_origin(), gt.xform(to), rr, exclude, collision_mask, collide_with_bodies, collide_with_areas)) {
|
|
collided = true;
|
|
against = rr.collider_id;
|
|
collision_point = rr.position;
|
|
collision_normal = rr.normal;
|
|
against_shape = rr.shape;
|
|
} else {
|
|
collided = false;
|
|
against = ObjectID();
|
|
against_shape = 0;
|
|
}
|
|
|
|
if (prev_collision_state != collided) {
|
|
update();
|
|
}
|
|
}
|
|
|
|
void RayCast2D::_draw_debug_shape() {
|
|
float tsize = 6.0;
|
|
bool draw_arrow = target_position.length() >= tsize;
|
|
Color draw_col = collided ? Color(1.0, 0.01, 0) : get_tree()->get_debug_collisions_color();
|
|
if (!enabled) {
|
|
float g = draw_col.get_v();
|
|
draw_col.r = g;
|
|
draw_col.g = g;
|
|
draw_col.b = g;
|
|
}
|
|
|
|
draw_line(Vector2(), target_position - Vector2(0, tsize * draw_arrow), draw_col, 1.4);
|
|
|
|
// Draw an arrow indicating where the RayCast is pointing to
|
|
if (draw_arrow) {
|
|
Transform2D xf;
|
|
xf.rotate(target_position.angle());
|
|
xf.translate(Vector2(target_position.length() - tsize, 0));
|
|
|
|
Vector<Vector2> pts;
|
|
pts.push_back(xf.xform(Vector2(tsize, 0)));
|
|
pts.push_back(xf.xform(Vector2(0, 0.5 * tsize)));
|
|
pts.push_back(xf.xform(Vector2(0, -0.5 * tsize)));
|
|
|
|
Vector<Color> cols;
|
|
for (int i = 0; i < 3; i++) {
|
|
cols.push_back(draw_col);
|
|
}
|
|
|
|
draw_primitive(pts, cols, Vector<Vector2>());
|
|
}
|
|
}
|
|
|
|
void RayCast2D::force_raycast_update() {
|
|
_update_raycast_state();
|
|
}
|
|
|
|
void RayCast2D::add_exception_rid(const RID &p_rid) {
|
|
exclude.insert(p_rid);
|
|
}
|
|
|
|
void RayCast2D::add_exception(const Object *p_object) {
|
|
ERR_FAIL_NULL(p_object);
|
|
const CollisionObject2D *co = Object::cast_to<CollisionObject2D>(p_object);
|
|
if (!co) {
|
|
return;
|
|
}
|
|
add_exception_rid(co->get_rid());
|
|
}
|
|
|
|
void RayCast2D::remove_exception_rid(const RID &p_rid) {
|
|
exclude.erase(p_rid);
|
|
}
|
|
|
|
void RayCast2D::remove_exception(const Object *p_object) {
|
|
ERR_FAIL_NULL(p_object);
|
|
const CollisionObject2D *co = Object::cast_to<CollisionObject2D>(p_object);
|
|
if (!co) {
|
|
return;
|
|
}
|
|
remove_exception_rid(co->get_rid());
|
|
}
|
|
|
|
void RayCast2D::clear_exceptions() {
|
|
exclude.clear();
|
|
}
|
|
|
|
void RayCast2D::set_collide_with_areas(bool p_clip) {
|
|
collide_with_areas = p_clip;
|
|
}
|
|
|
|
bool RayCast2D::is_collide_with_areas_enabled() const {
|
|
return collide_with_areas;
|
|
}
|
|
|
|
void RayCast2D::set_collide_with_bodies(bool p_clip) {
|
|
collide_with_bodies = p_clip;
|
|
}
|
|
|
|
bool RayCast2D::is_collide_with_bodies_enabled() const {
|
|
return collide_with_bodies;
|
|
}
|
|
|
|
void RayCast2D::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &RayCast2D::set_enabled);
|
|
ClassDB::bind_method(D_METHOD("is_enabled"), &RayCast2D::is_enabled);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_target_position", "local_point"), &RayCast2D::set_target_position);
|
|
ClassDB::bind_method(D_METHOD("get_target_position"), &RayCast2D::get_target_position);
|
|
|
|
ClassDB::bind_method(D_METHOD("is_colliding"), &RayCast2D::is_colliding);
|
|
ClassDB::bind_method(D_METHOD("force_raycast_update"), &RayCast2D::force_raycast_update);
|
|
|
|
ClassDB::bind_method(D_METHOD("get_collider"), &RayCast2D::get_collider);
|
|
ClassDB::bind_method(D_METHOD("get_collider_shape"), &RayCast2D::get_collider_shape);
|
|
ClassDB::bind_method(D_METHOD("get_collision_point"), &RayCast2D::get_collision_point);
|
|
ClassDB::bind_method(D_METHOD("get_collision_normal"), &RayCast2D::get_collision_normal);
|
|
|
|
ClassDB::bind_method(D_METHOD("add_exception_rid", "rid"), &RayCast2D::add_exception_rid);
|
|
ClassDB::bind_method(D_METHOD("add_exception", "node"), &RayCast2D::add_exception);
|
|
|
|
ClassDB::bind_method(D_METHOD("remove_exception_rid", "rid"), &RayCast2D::remove_exception_rid);
|
|
ClassDB::bind_method(D_METHOD("remove_exception", "node"), &RayCast2D::remove_exception);
|
|
|
|
ClassDB::bind_method(D_METHOD("clear_exceptions"), &RayCast2D::clear_exceptions);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_collision_mask", "mask"), &RayCast2D::set_collision_mask);
|
|
ClassDB::bind_method(D_METHOD("get_collision_mask"), &RayCast2D::get_collision_mask);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_collision_mask_bit", "bit", "value"), &RayCast2D::set_collision_mask_bit);
|
|
ClassDB::bind_method(D_METHOD("get_collision_mask_bit", "bit"), &RayCast2D::get_collision_mask_bit);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_exclude_parent_body", "mask"), &RayCast2D::set_exclude_parent_body);
|
|
ClassDB::bind_method(D_METHOD("get_exclude_parent_body"), &RayCast2D::get_exclude_parent_body);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_collide_with_areas", "enable"), &RayCast2D::set_collide_with_areas);
|
|
ClassDB::bind_method(D_METHOD("is_collide_with_areas_enabled"), &RayCast2D::is_collide_with_areas_enabled);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_collide_with_bodies", "enable"), &RayCast2D::set_collide_with_bodies);
|
|
ClassDB::bind_method(D_METHOD("is_collide_with_bodies_enabled"), &RayCast2D::is_collide_with_bodies_enabled);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "enabled"), "set_enabled", "is_enabled");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "exclude_parent"), "set_exclude_parent_body", "get_exclude_parent_body");
|
|
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "target_position"), "set_target_position", "get_target_position");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "collision_mask", PROPERTY_HINT_LAYERS_2D_PHYSICS), "set_collision_mask", "get_collision_mask");
|
|
|
|
ADD_GROUP("Collide With", "collide_with");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "collide_with_areas", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collide_with_areas", "is_collide_with_areas_enabled");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "collide_with_bodies", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collide_with_bodies", "is_collide_with_bodies_enabled");
|
|
}
|
|
|
|
RayCast2D::RayCast2D() {
|
|
}
|