#include "terrain_2d_surface_merger.h"

#include "terrain_2d_library_merger.h"

#include "../defines.h"

Ref<AtlasTexture> Terrain2DSurfaceMerger::get_region() {
	return _region;
}
void Terrain2DSurfaceMerger::set_region(const Ref<AtlasTexture> &texture) {
	_region = texture;
}

Ref<Texture> Terrain2DSurfaceMerger::get_texture() {
	return _texture;
}
void Terrain2DSurfaceMerger::set_texture(const Ref<Texture> &texture) {
	_texture = texture;
}

void Terrain2DSurfaceMerger::refresh_rects() {
	if (!_region.is_valid()) {
		_rect = Rect2();
		return;
	}

	Ref<AtlasTexture> at = _region;
	Ref<Texture> tex = at->get_atlas();

	if (!tex.is_valid()) {
		_rect = Rect2();
		return;
	}

	Rect2 region = at->get_region();
	float w = tex->get_width();
	float h = tex->get_height();

	Rect2 r;

	r.position.x = region.position.x / w;
	r.position.y = region.position.y / h;
	r.size.x = region.size.x / w;
	r.size.y = region.size.y / h;

	_rect = r;
}

Terrain2DSurfaceMerger::Terrain2DSurfaceMerger() {
}

Terrain2DSurfaceMerger::~Terrain2DSurfaceMerger() {
	_region.unref();
	_texture.unref();
}

void Terrain2DSurfaceMerger::_bind_methods() {
	ClassDB::bind_method(D_METHOD("get_region"), &Terrain2DSurfaceMerger::get_region);
	ClassDB::bind_method(D_METHOD("set_region", "texture"), &Terrain2DSurfaceMerger::set_region);
	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "region", PROPERTY_HINT_RESOURCE_TYPE, "AtlasTexture", 0), "set_region", "get_region");

	ClassDB::bind_method(D_METHOD("get_texture"), &Terrain2DSurfaceMerger::get_texture);
	ClassDB::bind_method(D_METHOD("set_texture", "texture"), &Terrain2DSurfaceMerger::set_texture);
	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_texture", "get_texture");
}