diff options
Diffstat (limited to 'scene/3d/physics/collision_polygon_3d.cpp')
| -rw-r--r-- | scene/3d/physics/collision_polygon_3d.cpp | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/scene/3d/physics/collision_polygon_3d.cpp b/scene/3d/physics/collision_polygon_3d.cpp new file mode 100644 index 0000000000..76cd4db779 --- /dev/null +++ b/scene/3d/physics/collision_polygon_3d.cpp @@ -0,0 +1,217 @@ +/**************************************************************************/ +/* collision_polygon_3d.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 */ +/* 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 "collision_polygon_3d.h" + +#include "core/math/geometry_2d.h" +#include "scene/3d/physics/collision_object_3d.h" +#include "scene/resources/3d/convex_polygon_shape_3d.h" + +void CollisionPolygon3D::_build_polygon() { + if (!collision_object) { + return; + } + + collision_object->shape_owner_clear_shapes(owner_id); + + if (polygon.size() == 0) { + return; + } + + Vector<Vector<Vector2>> decomp = Geometry2D::decompose_polygon_in_convex(polygon); + if (decomp.size() == 0) { + return; + } + + //here comes the sun, lalalala + //decompose concave into multiple convex polygons and add them + + for (int i = 0; i < decomp.size(); i++) { + Ref<ConvexPolygonShape3D> convex = memnew(ConvexPolygonShape3D); + Vector<Vector3> cp; + int cs = decomp[i].size(); + cp.resize(cs * 2); + { + Vector3 *w = cp.ptrw(); + int idx = 0; + for (int j = 0; j < cs; j++) { + Vector2 d = decomp[i][j]; + w[idx++] = Vector3(d.x, d.y, depth * 0.5); + w[idx++] = Vector3(d.x, d.y, -depth * 0.5); + } + } + + convex->set_points(cp); + convex->set_margin(margin); + collision_object->shape_owner_add_shape(owner_id, convex); + collision_object->shape_owner_set_disabled(owner_id, disabled); + } +} + +void CollisionPolygon3D::_update_in_shape_owner(bool p_xform_only) { + collision_object->shape_owner_set_transform(owner_id, get_transform()); + if (p_xform_only) { + return; + } + collision_object->shape_owner_set_disabled(owner_id, disabled); +} + +void CollisionPolygon3D::_notification(int p_what) { + switch (p_what) { + case NOTIFICATION_PARENTED: { + collision_object = Object::cast_to<CollisionObject3D>(get_parent()); + if (collision_object) { + owner_id = collision_object->create_shape_owner(this); + _build_polygon(); + _update_in_shape_owner(); + } + } break; + + case NOTIFICATION_ENTER_TREE: { + if (collision_object) { + _update_in_shape_owner(); + } + } break; + + case NOTIFICATION_LOCAL_TRANSFORM_CHANGED: { + if (collision_object) { + _update_in_shape_owner(true); + } + update_configuration_warnings(); + } break; + + case NOTIFICATION_UNPARENTED: { + if (collision_object) { + collision_object->remove_shape_owner(owner_id); + } + owner_id = 0; + collision_object = nullptr; + } break; + } +} + +void CollisionPolygon3D::set_polygon(const Vector<Point2> &p_polygon) { + polygon = p_polygon; + if (collision_object) { + _build_polygon(); + } + update_configuration_warnings(); + update_gizmos(); +} + +Vector<Point2> CollisionPolygon3D::get_polygon() const { + return polygon; +} + +AABB CollisionPolygon3D::get_item_rect() const { + return aabb; +} + +void CollisionPolygon3D::set_depth(real_t p_depth) { + depth = p_depth; + _build_polygon(); + update_gizmos(); +} + +real_t CollisionPolygon3D::get_depth() const { + return depth; +} + +void CollisionPolygon3D::set_disabled(bool p_disabled) { + disabled = p_disabled; + update_gizmos(); + + if (collision_object) { + collision_object->shape_owner_set_disabled(owner_id, p_disabled); + } +} + +bool CollisionPolygon3D::is_disabled() const { + return disabled; +} + +real_t CollisionPolygon3D::get_margin() const { + return margin; +} + +void CollisionPolygon3D::set_margin(real_t p_margin) { + margin = p_margin; + if (collision_object) { + _build_polygon(); + } +} + +PackedStringArray CollisionPolygon3D::get_configuration_warnings() const { + PackedStringArray warnings = Node::get_configuration_warnings(); + + if (!Object::cast_to<CollisionObject3D>(get_parent())) { + warnings.push_back(RTR("CollisionPolygon3D only serves to provide a collision shape to a CollisionObject3D derived node.\nPlease only use it as a child of Area3D, StaticBody3D, RigidBody3D, CharacterBody3D, etc. to give them a shape.")); + } + + if (polygon.is_empty()) { + warnings.push_back(RTR("An empty CollisionPolygon3D has no effect on collision.")); + } + + Vector3 scale = get_transform().get_basis().get_scale(); + if (!(Math::is_zero_approx(scale.x - scale.y) && Math::is_zero_approx(scale.y - scale.z))) { + warnings.push_back(RTR("A non-uniformly scaled CollisionPolygon3D node will probably not function as expected.\nPlease make its scale uniform (i.e. the same on all axes), and change its polygon's vertices instead.")); + } + + return warnings; +} + +bool CollisionPolygon3D::_is_editable_3d_polygon() const { + return true; +} + +void CollisionPolygon3D::_bind_methods() { + ClassDB::bind_method(D_METHOD("set_depth", "depth"), &CollisionPolygon3D::set_depth); + ClassDB::bind_method(D_METHOD("get_depth"), &CollisionPolygon3D::get_depth); + + ClassDB::bind_method(D_METHOD("set_polygon", "polygon"), &CollisionPolygon3D::set_polygon); + ClassDB::bind_method(D_METHOD("get_polygon"), &CollisionPolygon3D::get_polygon); + + ClassDB::bind_method(D_METHOD("set_disabled", "disabled"), &CollisionPolygon3D::set_disabled); + ClassDB::bind_method(D_METHOD("is_disabled"), &CollisionPolygon3D::is_disabled); + + ClassDB::bind_method(D_METHOD("set_margin", "margin"), &CollisionPolygon3D::set_margin); + ClassDB::bind_method(D_METHOD("get_margin"), &CollisionPolygon3D::get_margin); + + ClassDB::bind_method(D_METHOD("_is_editable_3d_polygon"), &CollisionPolygon3D::_is_editable_3d_polygon); + + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "depth", PROPERTY_HINT_NONE, "suffix:m"), "set_depth", "get_depth"); + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "disabled"), "set_disabled", "is_disabled"); + ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "polygon"), "set_polygon", "get_polygon"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "margin", PROPERTY_HINT_RANGE, "0.001,10,0.001,suffix:m"), "set_margin", "get_margin"); +} + +CollisionPolygon3D::CollisionPolygon3D() { + set_notify_local_transform(true); +} |