/*************************************************************************/
/*  baked_light_instance.cpp                                             */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2020 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,  */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#include "baked_light_instance.h"
#include "scene/scene_string_names.h"

RID BakedLightInstance::get_baked_light_instance() const {

	if (baked_light.is_null())
		return RID();
	else
		return get_instance();
}

void BakedLightInstance::set_baked_light(const Ref<BakedLight> &p_baked_light) {

	baked_light = p_baked_light;

	RID base_rid;

	if (baked_light.is_valid())
		base_rid = baked_light->get_rid();
	else
		base_rid = RID();

	set_base(base_rid);

	if (is_inside_world()) {

		emit_signal(SceneStringNames::get_singleton()->baked_light_changed);

		//		for (List<Node*>::Element *E=baked_geometry.front();E;E=E->next()) {
		//			VS::get_singleton()->instance_geometry_set_baked_light(E->get()->get_instance(),baked_light.is_valid()?get_instance():RID());
		//		}
	}

	update_configuration_warning();
}

Ref<BakedLight> BakedLightInstance::get_baked_light() const {

	return baked_light;
}

AABB BakedLightInstance::get_aabb() const {

	return AABB(Vector3(0, 0, 0), Vector3(1, 1, 1));
}
DVector<Face3> BakedLightInstance::get_faces(uint32_t p_usage_flags) const {

	return DVector<Face3>();
}

String BakedLightInstance::get_configuration_warning() const {
	if (get_baked_light().is_null()) {
		return TTR("BakedLightInstance does not contain a BakedLight resource.");
	}
	return String();
}

void BakedLightInstance::_bind_methods() {

	ObjectTypeDB::bind_method(_MD("set_baked_light", "baked_light"), &BakedLightInstance::set_baked_light);
	ObjectTypeDB::bind_method(_MD("get_baked_light"), &BakedLightInstance::get_baked_light);
	ObjectTypeDB::bind_method(_MD("get_baked_light_instance"), &BakedLightInstance::get_baked_light_instance);

	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "baked_light", PROPERTY_HINT_RESOURCE_TYPE, "BakedLight"), _SCS("set_baked_light"), _SCS("get_baked_light"));
	ADD_SIGNAL(MethodInfo("baked_light_changed"));
}

BakedLightInstance::BakedLightInstance() {
}
/////////////////////////

void BakedLightSampler::set_param(Param p_param, float p_value) {
	ERR_FAIL_INDEX(p_param, PARAM_MAX);
	params[p_param] = p_value;
	VS::get_singleton()->baked_light_sampler_set_param(base, VS::BakedLightSamplerParam(p_param), p_value);
}

float BakedLightSampler::get_param(Param p_param) const {

	ERR_FAIL_INDEX_V(p_param, PARAM_MAX, 0);
	return params[p_param];
}

void BakedLightSampler::set_resolution(int p_resolution) {

	ERR_FAIL_COND(p_resolution < 4 || p_resolution > 32);
	resolution = p_resolution;
	VS::get_singleton()->baked_light_sampler_set_resolution(base, resolution);
}
int BakedLightSampler::get_resolution() const {

	return resolution;
}

AABB BakedLightSampler::get_aabb() const {

	float r = get_param(PARAM_RADIUS);
	return AABB(Vector3(-r, -r, -r), Vector3(r * 2, r * 2, r * 2));
}
DVector<Face3> BakedLightSampler::get_faces(uint32_t p_usage_flags) const {
	return DVector<Face3>();
}

void BakedLightSampler::_bind_methods() {

	ObjectTypeDB::bind_method(_MD("set_param", "param", "value"), &BakedLightSampler::set_param);
	ObjectTypeDB::bind_method(_MD("get_param", "param"), &BakedLightSampler::get_param);

	ObjectTypeDB::bind_method(_MD("set_resolution", "resolution"), &BakedLightSampler::set_resolution);
	ObjectTypeDB::bind_method(_MD("get_resolution"), &BakedLightSampler::get_resolution);

	BIND_CONSTANT(PARAM_RADIUS);
	BIND_CONSTANT(PARAM_STRENGTH);
	BIND_CONSTANT(PARAM_ATTENUATION);
	BIND_CONSTANT(PARAM_DETAIL_RATIO);
	BIND_CONSTANT(PARAM_MAX);

	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "params/radius", PROPERTY_HINT_RANGE, "0.01,1024,0.01"), _SCS("set_param"), _SCS("get_param"), PARAM_RADIUS);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "params/strength", PROPERTY_HINT_RANGE, "0.01,16,0.01"), _SCS("set_param"), _SCS("get_param"), PARAM_STRENGTH);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "params/attenuation", PROPERTY_HINT_EXP_EASING), _SCS("set_param"), _SCS("get_param"), PARAM_ATTENUATION);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "params/detail_ratio", PROPERTY_HINT_RANGE, "0.01,1.0,0.01"), _SCS("set_param"), _SCS("get_param"), PARAM_DETAIL_RATIO);
	//	ADD_PROPERTYI( PropertyInfo(Variant::REAL,"params/detail_ratio",PROPERTY_HINT_RANGE,"0,20,1"),_SCS("set_param"),_SCS("get_param"),PARAM_DETAIL_RATIO);
	ADD_PROPERTY(PropertyInfo(Variant::REAL, "params/resolution", PROPERTY_HINT_RANGE, "4,32,1"), _SCS("set_resolution"), _SCS("get_resolution"));
}

BakedLightSampler::BakedLightSampler() {

	base = VS::get_singleton()->baked_light_sampler_create();
	set_base(base);

	params[PARAM_RADIUS] = 1.0;
	params[PARAM_STRENGTH] = 1.0;
	params[PARAM_ATTENUATION] = 1.0;
	params[PARAM_DETAIL_RATIO] = 0.1;
	resolution = 16;
}

BakedLightSampler::~BakedLightSampler() {

	VS::get_singleton()->free(base);
}