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godot/scene/2d/light_occluder_2d.cpp
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader! 
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

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/*************************************************************************/
/* light_occluder_2d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 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 "light_occluder_2d.h"
void OccluderPolygon2D::set_polygon(const DVector<Vector2>& p_polygon) {
polygon=p_polygon;
VS::get_singleton()->canvas_occluder_polygon_set_shape(occ_polygon,p_polygon,closed);
emit_changed();
}
DVector<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())
VS::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;
VS::get_singleton()->canvas_occluder_polygon_set_cull_mode(occ_polygon,VS::CanvasOccluderPolygonCullMode(p_mode));
}
OccluderPolygon2D::CullMode OccluderPolygon2D::get_cull_mode() const{
return cull;
}
RID OccluderPolygon2D::get_rid() const {
return occ_polygon;
}
void OccluderPolygon2D::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_closed","closed"),&OccluderPolygon2D::set_closed);
ObjectTypeDB::bind_method(_MD("is_closed"),&OccluderPolygon2D::is_closed);
ObjectTypeDB::bind_method(_MD("set_cull_mode","cull_mode"),&OccluderPolygon2D::set_cull_mode);
ObjectTypeDB::bind_method(_MD("get_cull_mode"),&OccluderPolygon2D::get_cull_mode);
ObjectTypeDB::bind_method(_MD("set_polygon","polygon"),&OccluderPolygon2D::set_polygon);
ObjectTypeDB::bind_method(_MD("get_polygon"),&OccluderPolygon2D::get_polygon);
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"closed"),_SCS("set_closed"),_SCS("is_closed"));
ADD_PROPERTY( PropertyInfo(Variant::INT,"cull_mode",PROPERTY_HINT_ENUM,"Disabled,ClockWise,CounterClockWise"),_SCS("set_cull_mode"),_SCS("get_cull_mode"));
ADD_PROPERTY( PropertyInfo(Variant::VECTOR2_ARRAY,"polygon"),_SCS("set_polygon"),_SCS("get_polygon"));
BIND_CONSTANT(CULL_DISABLED);
BIND_CONSTANT(CULL_CLOCKWISE);
BIND_CONSTANT(CULL_COUNTER_CLOCKWISE);
}
OccluderPolygon2D::OccluderPolygon2D() {
occ_polygon=VS::get_singleton()->canvas_occluder_polygon_create();
closed=true;
cull=CULL_DISABLED;
}
OccluderPolygon2D::~OccluderPolygon2D() {
VS::get_singleton()->free(occ_polygon);
}
#ifdef DEBUG_ENABLED
void LightOccluder2D::_poly_changed() {
update();
}
#endif
void LightOccluder2D::_notification(int p_what) {
if (p_what==NOTIFICATION_ENTER_CANVAS) {
VS::get_singleton()->canvas_light_occluder_attach_to_canvas(occluder,get_canvas());
VS::get_singleton()->canvas_light_occluder_set_transform(occluder,get_global_transform());
VS::get_singleton()->canvas_light_occluder_set_enabled(occluder,is_visible());
}
if (p_what==NOTIFICATION_TRANSFORM_CHANGED) {
VS::get_singleton()->canvas_light_occluder_set_transform(occluder,get_global_transform());
}
if (p_what==NOTIFICATION_VISIBILITY_CHANGED) {
VS::get_singleton()->canvas_light_occluder_set_enabled(occluder,is_visible());
}
if (p_what==NOTIFICATION_DRAW) {
if (get_tree()->is_editor_hint()) {
if (occluder_polygon.is_valid()) {
DVector<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();
DVector<Vector2>::Read r = poly.read();
for(int i=0;i<ps-1;i++) {
draw_line(r[i],r[i+1],Color(0,0,0,0.6),3);
}
}
}
}
}
}
if (p_what==NOTIFICATION_EXIT_CANVAS) {
VS::get_singleton()->canvas_light_occluder_attach_to_canvas(occluder,RID());
}
}
void LightOccluder2D::set_occluder_polygon(const Ref<OccluderPolygon2D>& p_polygon) {
#ifdef DEBUG_ENABLED
if (occluder_polygon.is_valid())
occluder_polygon->disconnect("changed",this,"_poly_changed");
#endif
occluder_polygon=p_polygon;
if (occluder_polygon.is_valid())
VS::get_singleton()->canvas_light_occluder_set_polygon(occluder,occluder_polygon->get_rid());
else
VS::get_singleton()->canvas_light_occluder_set_polygon(occluder,RID());
#ifdef DEBUG_ENABLED
if (occluder_polygon.is_valid())
occluder_polygon->connect("changed",this,"_poly_changed");
update();
#endif
}
Ref<OccluderPolygon2D> LightOccluder2D::get_occluder_polygon() const {
return occluder_polygon;
}
void LightOccluder2D::set_occluder_light_mask(int p_mask) {
mask=p_mask;
VS::get_singleton()->canvas_light_occluder_set_light_mask(occluder,mask);
}
int LightOccluder2D::get_occluder_light_mask() const{
return mask;
}
String LightOccluder2D::get_configuration_warning() const {
if (!occluder_polygon.is_valid()) {
return TTR("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) {
return TTR("The occluder polygon for this occluder is empty. Please draw a polygon!");
}
return String();
}
void LightOccluder2D::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_occluder_polygon","polygon:OccluderPolygon2D"),&LightOccluder2D::set_occluder_polygon);
ObjectTypeDB::bind_method(_MD("get_occluder_polygon:OccluderPolygon2D"),&LightOccluder2D::get_occluder_polygon);
ObjectTypeDB::bind_method(_MD("set_occluder_light_mask","mask"),&LightOccluder2D::set_occluder_light_mask);
ObjectTypeDB::bind_method(_MD("get_occluder_light_mask"),&LightOccluder2D::get_occluder_light_mask);
#ifdef DEBUG_ENABLED
ObjectTypeDB::bind_method("_poly_changed",&LightOccluder2D::_poly_changed);
#endif
ADD_PROPERTY( PropertyInfo(Variant::OBJECT,"occluder",PROPERTY_HINT_RESOURCE_TYPE,"OccluderPolygon2D"),_SCS("set_occluder_polygon"),_SCS("get_occluder_polygon"));
ADD_PROPERTY( PropertyInfo(Variant::INT,"light_mask",PROPERTY_HINT_ALL_FLAGS),_SCS("set_occluder_light_mask"),_SCS("get_occluder_light_mask"));
}
LightOccluder2D::LightOccluder2D() {
occluder=VS::get_singleton()->canvas_light_occluder_create();
mask=1;
}
LightOccluder2D::~LightOccluder2D() {
VS::get_singleton()->free(occluder);
}
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