/*************************************************************************/ /* light_occluder_2d.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 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 "light_occluder_2d.h" #include "core/config/engine.h" #include "core/math/geometry_2d.h" #define LINE_GRAB_WIDTH 8 #ifdef TOOLS_ENABLED Rect2 OccluderPolygon2D::_edit_get_rect() const { if (rect_cache_dirty) { if (closed) { const Vector2 *r = polygon.ptr(); item_rect = Rect2(); for (int i = 0; i < polygon.size(); i++) { Vector2 pos = r[i]; if (i == 0) { item_rect.position = pos; } else { item_rect.expand_to(pos); } } rect_cache_dirty = false; } else { if (polygon.size() == 0) { item_rect = Rect2(); } else { Vector2 d = Vector2(LINE_GRAB_WIDTH, LINE_GRAB_WIDTH); item_rect = Rect2(polygon[0] - d, 2 * d); for (int i = 1; i < polygon.size(); i++) { item_rect.expand_to(polygon[i] - d); item_rect.expand_to(polygon[i] + d); } } } } return item_rect; } bool OccluderPolygon2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const { if (closed) { return Geometry2D::is_point_in_polygon(p_point, Variant(polygon)); } else { const real_t d = LINE_GRAB_WIDTH / 2 + p_tolerance; const Vector2 *points = polygon.ptr(); for (int i = 0; i < polygon.size() - 1; i++) { Vector2 p = Geometry2D::get_closest_point_to_segment(p_point, &points[i]); if (p.distance_to(p_point) <= d) { return true; } } return false; } } #endif void OccluderPolygon2D::set_polygon(const Vector<Vector2> &p_polygon) { polygon = p_polygon; rect_cache_dirty = true; RS::get_singleton()->canvas_occluder_polygon_set_shape(occ_polygon, p_polygon, closed); emit_changed(); } Vector<Vector2> OccluderPolygon2D::get_polygon() const { return polygon; } void OccluderPolygon2D::set_closed(bool p_closed) { if (closed == p_closed) { return; } closed = p_closed; if (polygon.size()) { RS::get_singleton()->canvas_occluder_polygon_set_shape(occ_polygon, polygon, closed); } emit_changed(); } bool OccluderPolygon2D::is_closed() const { return closed; } void OccluderPolygon2D::set_cull_mode(CullMode p_mode) { cull = p_mode; RS::get_singleton()->canvas_occluder_polygon_set_cull_mode(occ_polygon, RS::CanvasOccluderPolygonCullMode(p_mode)); } OccluderPolygon2D::CullMode OccluderPolygon2D::get_cull_mode() const { return cull; } RID OccluderPolygon2D::get_rid() const { return occ_polygon; } void OccluderPolygon2D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_closed", "closed"), &OccluderPolygon2D::set_closed); ClassDB::bind_method(D_METHOD("is_closed"), &OccluderPolygon2D::is_closed); ClassDB::bind_method(D_METHOD("set_cull_mode", "cull_mode"), &OccluderPolygon2D::set_cull_mode); ClassDB::bind_method(D_METHOD("get_cull_mode"), &OccluderPolygon2D::get_cull_mode); ClassDB::bind_method(D_METHOD("set_polygon", "polygon"), &OccluderPolygon2D::set_polygon); ClassDB::bind_method(D_METHOD("get_polygon"), &OccluderPolygon2D::get_polygon); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "closed"), "set_closed", "is_closed"); ADD_PROPERTY(PropertyInfo(Variant::INT, "cull_mode", PROPERTY_HINT_ENUM, "Disabled,ClockWise,CounterClockWise"), "set_cull_mode", "get_cull_mode"); ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "polygon"), "set_polygon", "get_polygon"); BIND_ENUM_CONSTANT(CULL_DISABLED); BIND_ENUM_CONSTANT(CULL_CLOCKWISE); BIND_ENUM_CONSTANT(CULL_COUNTER_CLOCKWISE); } OccluderPolygon2D::OccluderPolygon2D() { occ_polygon = RS::get_singleton()->canvas_occluder_polygon_create(); } OccluderPolygon2D::~OccluderPolygon2D() { RS::get_singleton()->free(occ_polygon); } void LightOccluder2D::_poly_changed() { #ifdef DEBUG_ENABLED queue_redraw(); #endif } void LightOccluder2D::_notification(int p_what) { switch (p_what) { case NOTIFICATION_ENTER_CANVAS: { RS::get_singleton()->canvas_light_occluder_attach_to_canvas(occluder, get_canvas()); RS::get_singleton()->canvas_light_occluder_set_transform(occluder, get_global_transform()); RS::get_singleton()->canvas_light_occluder_set_enabled(occluder, is_visible_in_tree()); } break; case NOTIFICATION_TRANSFORM_CHANGED: { RS::get_singleton()->canvas_light_occluder_set_transform(occluder, get_global_transform()); } break; case NOTIFICATION_VISIBILITY_CHANGED: { RS::get_singleton()->canvas_light_occluder_set_enabled(occluder, is_visible_in_tree()); } break; case NOTIFICATION_DRAW: { if (Engine::get_singleton()->is_editor_hint()) { if (occluder_polygon.is_valid()) { Vector<Vector2> poly = occluder_polygon->get_polygon(); if (poly.size()) { if (occluder_polygon->is_closed()) { Vector<Color> color; color.push_back(Color(0, 0, 0, 0.6)); draw_polygon(Variant(poly), color); } else { int ps = poly.size(); const Vector2 *r = poly.ptr(); for (int i = 0; i < ps - 1; i++) { draw_line(r[i], r[i + 1], Color(0, 0, 0, 0.6), 3); } } } } } } break; case NOTIFICATION_EXIT_CANVAS: { RS::get_singleton()->canvas_light_occluder_attach_to_canvas(occluder, RID()); } break; } } #ifdef TOOLS_ENABLED Rect2 LightOccluder2D::_edit_get_rect() const { return occluder_polygon.is_valid() ? occluder_polygon->_edit_get_rect() : Rect2(); } bool LightOccluder2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const { return occluder_polygon.is_valid() ? occluder_polygon->_edit_is_selected_on_click(p_point, p_tolerance) : false; } #endif void LightOccluder2D::set_occluder_polygon(const Ref<OccluderPolygon2D> &p_polygon) { #ifdef DEBUG_ENABLED if (occluder_polygon.is_valid()) { occluder_polygon->disconnect("changed", callable_mp(this, &LightOccluder2D::_poly_changed)); } #endif occluder_polygon = p_polygon; if (occluder_polygon.is_valid()) { RS::get_singleton()->canvas_light_occluder_set_polygon(occluder, occluder_polygon->get_rid()); } else { RS::get_singleton()->canvas_light_occluder_set_polygon(occluder, RID()); } #ifdef DEBUG_ENABLED if (occluder_polygon.is_valid()) { occluder_polygon->connect("changed", callable_mp(this, &LightOccluder2D::_poly_changed)); } queue_redraw(); #endif } Ref<OccluderPolygon2D> LightOccluder2D::get_occluder_polygon() const { return occluder_polygon; } void LightOccluder2D::set_occluder_light_mask(int p_mask) { mask = p_mask; RS::get_singleton()->canvas_light_occluder_set_light_mask(occluder, p_mask); } int LightOccluder2D::get_occluder_light_mask() const { return mask; } TypedArray<String> LightOccluder2D::get_configuration_warnings() const { TypedArray<String> warnings = Node::get_configuration_warnings(); if (!occluder_polygon.is_valid()) { warnings.push_back(RTR("An occluder polygon must be set (or drawn) for this occluder to take effect.")); } if (occluder_polygon.is_valid() && occluder_polygon->get_polygon().size() == 0) { warnings.push_back(RTR("The occluder polygon for this occluder is empty. Please draw a polygon.")); } return warnings; } void LightOccluder2D::set_as_sdf_collision(bool p_enable) { sdf_collision = p_enable; RS::get_singleton()->canvas_light_occluder_set_as_sdf_collision(occluder, sdf_collision); } bool LightOccluder2D::is_set_as_sdf_collision() const { return sdf_collision; } void LightOccluder2D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_occluder_polygon", "polygon"), &LightOccluder2D::set_occluder_polygon); ClassDB::bind_method(D_METHOD("get_occluder_polygon"), &LightOccluder2D::get_occluder_polygon); ClassDB::bind_method(D_METHOD("set_occluder_light_mask", "mask"), &LightOccluder2D::set_occluder_light_mask); ClassDB::bind_method(D_METHOD("get_occluder_light_mask"), &LightOccluder2D::get_occluder_light_mask); ClassDB::bind_method(D_METHOD("set_as_sdf_collision", "enable"), &LightOccluder2D::set_as_sdf_collision); ClassDB::bind_method(D_METHOD("is_set_as_sdf_collision"), &LightOccluder2D::is_set_as_sdf_collision); ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "occluder", PROPERTY_HINT_RESOURCE_TYPE, "OccluderPolygon2D"), "set_occluder_polygon", "get_occluder_polygon"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "sdf_collision"), "set_as_sdf_collision", "is_set_as_sdf_collision"); ADD_PROPERTY(PropertyInfo(Variant::INT, "occluder_light_mask", PROPERTY_HINT_LAYERS_2D_RENDER), "set_occluder_light_mask", "get_occluder_light_mask"); } LightOccluder2D::LightOccluder2D() { occluder = RS::get_singleton()->canvas_light_occluder_create(); set_notify_transform(true); set_as_sdf_collision(true); } LightOccluder2D::~LightOccluder2D() { RS::get_singleton()->free(occluder); }