mirror of
https://github.com/godotengine/godot.git
synced 2024-11-27 09:16:35 +08:00
333 lines
9.6 KiB
C++
333 lines
9.6 KiB
C++
/*************************************************************************/
|
|
/* ray_cast.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2017 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.h"
|
|
|
|
#include "collision_object.h"
|
|
#include "engine.h"
|
|
#include "mesh_instance.h"
|
|
#include "servers/physics_server.h"
|
|
|
|
void RayCast::set_cast_to(const Vector3 &p_point) {
|
|
|
|
cast_to = p_point;
|
|
if (is_inside_tree() && (Engine::get_singleton()->is_editor_hint() || get_tree()->is_debugging_collisions_hint()))
|
|
update_gizmo();
|
|
if (is_inside_tree() && get_tree()->is_debugging_collisions_hint())
|
|
_update_debug_shape();
|
|
}
|
|
|
|
Vector3 RayCast::get_cast_to() const {
|
|
|
|
return cast_to;
|
|
}
|
|
|
|
void RayCast::set_collision_layer(uint32_t p_layer) {
|
|
|
|
collision_layer = p_layer;
|
|
}
|
|
|
|
uint32_t RayCast::get_collision_layer() const {
|
|
|
|
return collision_layer;
|
|
}
|
|
|
|
void RayCast::set_type_mask(uint32_t p_mask) {
|
|
|
|
type_mask = p_mask;
|
|
}
|
|
|
|
uint32_t RayCast::get_type_mask() const {
|
|
|
|
return type_mask;
|
|
}
|
|
|
|
bool RayCast::is_colliding() const {
|
|
|
|
return collided;
|
|
}
|
|
Object *RayCast::get_collider() const {
|
|
|
|
if (against == 0)
|
|
return NULL;
|
|
|
|
return ObjectDB::get_instance(against);
|
|
}
|
|
|
|
int RayCast::get_collider_shape() const {
|
|
|
|
return against_shape;
|
|
}
|
|
Vector3 RayCast::get_collision_point() const {
|
|
|
|
return collision_point;
|
|
}
|
|
Vector3 RayCast::get_collision_normal() const {
|
|
|
|
return collision_normal;
|
|
}
|
|
|
|
void RayCast::set_enabled(bool p_enabled) {
|
|
|
|
enabled = p_enabled;
|
|
if (is_inside_tree() && !Engine::get_singleton()->is_editor_hint())
|
|
set_physics_process(p_enabled);
|
|
if (!p_enabled)
|
|
collided = false;
|
|
|
|
if (is_inside_tree() && get_tree()->is_debugging_collisions_hint()) {
|
|
if (p_enabled)
|
|
_update_debug_shape();
|
|
else
|
|
_clear_debug_shape();
|
|
}
|
|
}
|
|
|
|
bool RayCast::is_enabled() const {
|
|
|
|
return enabled;
|
|
}
|
|
|
|
void RayCast::_notification(int p_what) {
|
|
|
|
switch (p_what) {
|
|
|
|
case NOTIFICATION_ENTER_TREE: {
|
|
|
|
if (enabled && !Engine::get_singleton()->is_editor_hint()) {
|
|
set_physics_process(true);
|
|
|
|
if (get_tree()->is_debugging_collisions_hint())
|
|
_update_debug_shape();
|
|
} else
|
|
set_physics_process(false);
|
|
|
|
} break;
|
|
case NOTIFICATION_EXIT_TREE: {
|
|
|
|
if (enabled) {
|
|
set_physics_process(false);
|
|
}
|
|
|
|
if (debug_shape)
|
|
_clear_debug_shape();
|
|
|
|
} break;
|
|
case NOTIFICATION_PHYSICS_PROCESS: {
|
|
|
|
if (!enabled)
|
|
break;
|
|
|
|
bool prev_collision_state = collided;
|
|
_update_raycast_state();
|
|
if (prev_collision_state != collided && get_tree()->is_debugging_collisions_hint()) {
|
|
if (debug_material.is_valid()) {
|
|
Ref<SpatialMaterial> line_material = static_cast<Ref<SpatialMaterial> >(debug_material);
|
|
line_material->set_albedo(collided ? Color(1.0, 0, 0) : Color(1.0, 0.8, 0.6));
|
|
}
|
|
}
|
|
|
|
} break;
|
|
}
|
|
}
|
|
|
|
void RayCast::_update_raycast_state() {
|
|
Ref<World> w3d = get_world();
|
|
ERR_FAIL_COND(w3d.is_null());
|
|
|
|
PhysicsDirectSpaceState *dss = PhysicsServer::get_singleton()->space_get_direct_state(w3d->get_space());
|
|
ERR_FAIL_COND(!dss);
|
|
|
|
Transform gt = get_global_transform();
|
|
|
|
Vector3 to = cast_to;
|
|
if (to == Vector3())
|
|
to = Vector3(0, 0.01, 0);
|
|
|
|
PhysicsDirectSpaceState::RayResult rr;
|
|
|
|
if (dss->intersect_ray(gt.get_origin(), gt.xform(to), rr, exclude, collision_layer, type_mask)) {
|
|
|
|
collided = true;
|
|
against = rr.collider_id;
|
|
collision_point = rr.position;
|
|
collision_normal = rr.normal;
|
|
against_shape = rr.shape;
|
|
} else {
|
|
collided = false;
|
|
}
|
|
}
|
|
|
|
void RayCast::force_raycast_update() {
|
|
_update_raycast_state();
|
|
}
|
|
|
|
void RayCast::add_exception_rid(const RID &p_rid) {
|
|
|
|
exclude.insert(p_rid);
|
|
}
|
|
|
|
void RayCast::add_exception(const Object *p_object) {
|
|
|
|
ERR_FAIL_NULL(p_object);
|
|
const CollisionObject *co = Object::cast_to<CollisionObject>(p_object);
|
|
if (!co)
|
|
return;
|
|
add_exception_rid(co->get_rid());
|
|
}
|
|
|
|
void RayCast::remove_exception_rid(const RID &p_rid) {
|
|
|
|
exclude.erase(p_rid);
|
|
}
|
|
|
|
void RayCast::remove_exception(const Object *p_object) {
|
|
|
|
ERR_FAIL_NULL(p_object);
|
|
const CollisionObject *co = Object::cast_to<CollisionObject>(p_object);
|
|
if (!co)
|
|
return;
|
|
remove_exception_rid(co->get_rid());
|
|
}
|
|
|
|
void RayCast::clear_exceptions() {
|
|
|
|
exclude.clear();
|
|
}
|
|
|
|
void RayCast::_bind_methods() {
|
|
|
|
ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &RayCast::set_enabled);
|
|
ClassDB::bind_method(D_METHOD("is_enabled"), &RayCast::is_enabled);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_cast_to", "local_point"), &RayCast::set_cast_to);
|
|
ClassDB::bind_method(D_METHOD("get_cast_to"), &RayCast::get_cast_to);
|
|
|
|
ClassDB::bind_method(D_METHOD("is_colliding"), &RayCast::is_colliding);
|
|
ClassDB::bind_method(D_METHOD("force_raycast_update"), &RayCast::force_raycast_update);
|
|
|
|
ClassDB::bind_method(D_METHOD("get_collider"), &RayCast::get_collider);
|
|
ClassDB::bind_method(D_METHOD("get_collider_shape"), &RayCast::get_collider_shape);
|
|
ClassDB::bind_method(D_METHOD("get_collision_point"), &RayCast::get_collision_point);
|
|
ClassDB::bind_method(D_METHOD("get_collision_normal"), &RayCast::get_collision_normal);
|
|
|
|
ClassDB::bind_method(D_METHOD("add_exception_rid", "rid"), &RayCast::add_exception_rid);
|
|
ClassDB::bind_method(D_METHOD("add_exception", "node"), &RayCast::add_exception);
|
|
|
|
ClassDB::bind_method(D_METHOD("remove_exception_rid", "rid"), &RayCast::remove_exception_rid);
|
|
ClassDB::bind_method(D_METHOD("remove_exception", "node"), &RayCast::remove_exception);
|
|
|
|
ClassDB::bind_method(D_METHOD("clear_exceptions"), &RayCast::clear_exceptions);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_collision_layer", "layer"), &RayCast::set_collision_layer);
|
|
ClassDB::bind_method(D_METHOD("get_collision_layer"), &RayCast::get_collision_layer);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_type_mask", "mask"), &RayCast::set_type_mask);
|
|
ClassDB::bind_method(D_METHOD("get_type_mask"), &RayCast::get_type_mask);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "enabled"), "set_enabled", "is_enabled");
|
|
ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "cast_to"), "set_cast_to", "get_cast_to");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "collision_layer", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collision_layer", "get_collision_layer");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "type_mask", PROPERTY_HINT_FLAGS, "Static,Kinematic,Rigid,Character,Area"), "set_type_mask", "get_type_mask");
|
|
}
|
|
|
|
void RayCast::_create_debug_shape() {
|
|
|
|
if (!debug_material.is_valid()) {
|
|
debug_material = Ref<SpatialMaterial>(memnew(SpatialMaterial));
|
|
|
|
Ref<SpatialMaterial> line_material = static_cast<Ref<SpatialMaterial> >(debug_material);
|
|
line_material->set_flag(SpatialMaterial::FLAG_UNSHADED, true);
|
|
line_material->set_line_width(3.0);
|
|
line_material->set_albedo(Color(1.0, 0.8, 0.6));
|
|
}
|
|
|
|
Ref<ArrayMesh> mesh = memnew(ArrayMesh);
|
|
|
|
MeshInstance *mi = memnew(MeshInstance);
|
|
mi->set_mesh(mesh);
|
|
|
|
add_child(mi);
|
|
debug_shape = mi;
|
|
}
|
|
|
|
void RayCast::_update_debug_shape() {
|
|
|
|
if (!enabled)
|
|
return;
|
|
|
|
if (!debug_shape)
|
|
_create_debug_shape();
|
|
|
|
MeshInstance *mi = static_cast<MeshInstance *>(debug_shape);
|
|
if (!mi->get_mesh().is_valid())
|
|
return;
|
|
|
|
Ref<ArrayMesh> mesh = mi->get_mesh();
|
|
if (mesh->get_surface_count() > 0)
|
|
mesh->surface_remove(0);
|
|
|
|
Array a;
|
|
a.resize(Mesh::ARRAY_MAX);
|
|
|
|
Vector<Vector3> verts;
|
|
verts.push_back(Vector3());
|
|
verts.push_back(cast_to);
|
|
a[Mesh::ARRAY_VERTEX] = verts;
|
|
|
|
mesh->add_surface_from_arrays(Mesh::PRIMITIVE_LINES, a);
|
|
mesh->surface_set_material(0, debug_material);
|
|
}
|
|
|
|
void RayCast::_clear_debug_shape() {
|
|
|
|
if (!debug_shape)
|
|
return;
|
|
|
|
MeshInstance *mi = static_cast<MeshInstance *>(debug_shape);
|
|
if (mi->is_inside_tree())
|
|
mi->queue_delete();
|
|
else
|
|
memdelete(mi);
|
|
|
|
debug_shape = NULL;
|
|
}
|
|
|
|
RayCast::RayCast() {
|
|
|
|
enabled = false;
|
|
against = 0;
|
|
collided = false;
|
|
against_shape = 0;
|
|
collision_layer = 1;
|
|
type_mask = PhysicsDirectSpaceState::TYPE_MASK_COLLISION;
|
|
cast_to = Vector3(0, -1, 0);
|
|
debug_shape = NULL;
|
|
}
|