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Diffstat (limited to 'scene/2d/physics/collision_shape_2d.cpp')
| -rw-r--r-- | scene/2d/physics/collision_shape_2d.cpp | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/scene/2d/physics/collision_shape_2d.cpp b/scene/2d/physics/collision_shape_2d.cpp new file mode 100644 index 0000000000..6fc29ffe63 --- /dev/null +++ b/scene/2d/physics/collision_shape_2d.cpp @@ -0,0 +1,294 @@ +/**************************************************************************/ +/* collision_shape_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 */ +/* 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_shape_2d.h" + +#include "scene/2d/physics/area_2d.h" +#include "scene/2d/physics/collision_object_2d.h" +#include "scene/resources/2d/concave_polygon_shape_2d.h" +#include "scene/resources/2d/convex_polygon_shape_2d.h" + +void CollisionShape2D::_shape_changed() { + queue_redraw(); +} + +void CollisionShape2D::_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); + collision_object->shape_owner_set_one_way_collision(owner_id, one_way_collision); + collision_object->shape_owner_set_one_way_collision_margin(owner_id, one_way_collision_margin); +} + +Color CollisionShape2D::_get_default_debug_color() const { + SceneTree *st = SceneTree::get_singleton(); + return st ? st->get_debug_collisions_color() : Color(); +} + +void CollisionShape2D::_notification(int p_what) { + switch (p_what) { + case NOTIFICATION_PARENTED: { + collision_object = Object::cast_to<CollisionObject2D>(get_parent()); + if (collision_object) { + owner_id = collision_object->create_shape_owner(this); + if (shape.is_valid()) { + collision_object->shape_owner_add_shape(owner_id, shape); + } + _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); + } + } break; + + case NOTIFICATION_UNPARENTED: { + if (collision_object) { + collision_object->remove_shape_owner(owner_id); + } + owner_id = 0; + collision_object = nullptr; + } break; + + case NOTIFICATION_DRAW: { + ERR_FAIL_COND(!is_inside_tree()); + + if (!Engine::get_singleton()->is_editor_hint() && !get_tree()->is_debugging_collisions_hint()) { + break; + } + + if (!shape.is_valid()) { + break; + } + + rect = Rect2(); + + Color draw_col = debug_color; + if (disabled) { + float g = draw_col.get_v(); + draw_col.r = g; + draw_col.g = g; + draw_col.b = g; + draw_col.a *= 0.5; + } + shape->draw(get_canvas_item(), draw_col); + + rect = shape->get_rect(); + rect = rect.grow(3); + + if (one_way_collision) { + // Draw an arrow indicating the one-way collision direction + draw_col = debug_color.inverted(); + if (disabled) { + draw_col = draw_col.darkened(0.25); + } + Vector2 line_to(0, 20); + draw_line(Vector2(), line_to, draw_col, 2); + real_t tsize = 8; + + Vector<Vector2> pts{ + line_to + Vector2(0, tsize), + line_to + Vector2(Math_SQRT12 * tsize, 0), + line_to + Vector2(-Math_SQRT12 * tsize, 0) + }; + + Vector<Color> cols{ draw_col, draw_col, draw_col }; + + draw_primitive(pts, cols, Vector<Vector2>()); + } + } break; + } +} + +void CollisionShape2D::set_shape(const Ref<Shape2D> &p_shape) { + if (p_shape == shape) { + return; + } + if (shape.is_valid()) { + shape->disconnect_changed(callable_mp(this, &CollisionShape2D::_shape_changed)); + } + shape = p_shape; + queue_redraw(); + if (collision_object) { + collision_object->shape_owner_clear_shapes(owner_id); + if (shape.is_valid()) { + collision_object->shape_owner_add_shape(owner_id, shape); + } + _update_in_shape_owner(); + } + + if (shape.is_valid()) { + shape->connect_changed(callable_mp(this, &CollisionShape2D::_shape_changed)); + } + + update_configuration_warnings(); +} + +Ref<Shape2D> CollisionShape2D::get_shape() const { + return shape; +} + +bool CollisionShape2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const { + if (!shape.is_valid()) { + return false; + } + + return shape->_edit_is_selected_on_click(p_point, p_tolerance); +} + +PackedStringArray CollisionShape2D::get_configuration_warnings() const { + PackedStringArray warnings = Node::get_configuration_warnings(); + + CollisionObject2D *col_object = Object::cast_to<CollisionObject2D>(get_parent()); + if (col_object == nullptr) { + warnings.push_back(RTR("CollisionShape2D only serves to provide a collision shape to a CollisionObject2D derived node.\nPlease only use it as a child of Area2D, StaticBody2D, RigidBody2D, CharacterBody2D, etc. to give them a shape.")); + } + if (!shape.is_valid()) { + warnings.push_back(RTR("A shape must be provided for CollisionShape2D to function. Please create a shape resource for it!")); + } + if (one_way_collision && Object::cast_to<Area2D>(col_object)) { + warnings.push_back(RTR("The One Way Collision property will be ignored when the collision object is an Area2D.")); + } + + Ref<ConvexPolygonShape2D> convex = shape; + Ref<ConcavePolygonShape2D> concave = shape; + if (convex.is_valid() || concave.is_valid()) { + warnings.push_back(RTR("Polygon-based shapes are not meant be used nor edited directly through the CollisionShape2D node. Please use the CollisionPolygon2D node instead.")); + } + + return warnings; +} + +void CollisionShape2D::set_disabled(bool p_disabled) { + disabled = p_disabled; + queue_redraw(); + if (collision_object) { + collision_object->shape_owner_set_disabled(owner_id, p_disabled); + } +} + +bool CollisionShape2D::is_disabled() const { + return disabled; +} + +void CollisionShape2D::set_one_way_collision(bool p_enable) { + one_way_collision = p_enable; + queue_redraw(); + if (collision_object) { + collision_object->shape_owner_set_one_way_collision(owner_id, p_enable); + } + update_configuration_warnings(); +} + +bool CollisionShape2D::is_one_way_collision_enabled() const { + return one_way_collision; +} + +void CollisionShape2D::set_one_way_collision_margin(real_t p_margin) { + one_way_collision_margin = p_margin; + if (collision_object) { + collision_object->shape_owner_set_one_way_collision_margin(owner_id, one_way_collision_margin); + } +} + +real_t CollisionShape2D::get_one_way_collision_margin() const { + return one_way_collision_margin; +} + +void CollisionShape2D::set_debug_color(const Color &p_color) { + debug_color = p_color; + queue_redraw(); +} + +Color CollisionShape2D::get_debug_color() const { + return debug_color; +} + +bool CollisionShape2D::_property_can_revert(const StringName &p_name) const { + if (p_name == "debug_color") { + return true; + } + return false; +} + +bool CollisionShape2D::_property_get_revert(const StringName &p_name, Variant &r_property) const { + if (p_name == "debug_color") { + r_property = _get_default_debug_color(); + return true; + } + return false; +} + +void CollisionShape2D::_validate_property(PropertyInfo &p_property) const { + if (p_property.name == "debug_color") { + if (debug_color == _get_default_debug_color()) { + p_property.usage = PROPERTY_USAGE_DEFAULT & ~PROPERTY_USAGE_STORAGE; + } else { + p_property.usage = PROPERTY_USAGE_DEFAULT; + } + } +} + +void CollisionShape2D::_bind_methods() { + ClassDB::bind_method(D_METHOD("set_shape", "shape"), &CollisionShape2D::set_shape); + ClassDB::bind_method(D_METHOD("get_shape"), &CollisionShape2D::get_shape); + ClassDB::bind_method(D_METHOD("set_disabled", "disabled"), &CollisionShape2D::set_disabled); + ClassDB::bind_method(D_METHOD("is_disabled"), &CollisionShape2D::is_disabled); + ClassDB::bind_method(D_METHOD("set_one_way_collision", "enabled"), &CollisionShape2D::set_one_way_collision); + ClassDB::bind_method(D_METHOD("is_one_way_collision_enabled"), &CollisionShape2D::is_one_way_collision_enabled); + ClassDB::bind_method(D_METHOD("set_one_way_collision_margin", "margin"), &CollisionShape2D::set_one_way_collision_margin); + ClassDB::bind_method(D_METHOD("get_one_way_collision_margin"), &CollisionShape2D::get_one_way_collision_margin); + ClassDB::bind_method(D_METHOD("set_debug_color", "color"), &CollisionShape2D::set_debug_color); + ClassDB::bind_method(D_METHOD("get_debug_color"), &CollisionShape2D::get_debug_color); + + ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "shape", PROPERTY_HINT_RESOURCE_TYPE, "Shape2D"), "set_shape", "get_shape"); + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "disabled"), "set_disabled", "is_disabled"); + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "one_way_collision"), "set_one_way_collision", "is_one_way_collision_enabled"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "one_way_collision_margin", PROPERTY_HINT_RANGE, "0,128,0.1,suffix:px"), "set_one_way_collision_margin", "get_one_way_collision_margin"); + ADD_PROPERTY(PropertyInfo(Variant::COLOR, "debug_color"), "set_debug_color", "get_debug_color"); + // Default value depends on a project setting, override for doc generation purposes. + ADD_PROPERTY_DEFAULT("debug_color", Color()); +} + +CollisionShape2D::CollisionShape2D() { + set_notify_local_transform(true); + set_hide_clip_children(true); + debug_color = _get_default_debug_color(); +} |