#include "terrain_2d_surface.h"

int Terrain2DSurface::get_id() const {
	return _id;
}
void Terrain2DSurface::set_id(const int value) {
	_id = value;
}

Rect2 Terrain2DSurface::get_rect() const {
	return _rect;
}
void Terrain2DSurface::set_rect(const Rect2 &rect) {
	_rect = rect;
}

Ref<Terrain2DLibrary> Terrain2DSurface::get_library() const {
	return Ref<Terrain2DLibrary>(_library);
}

void Terrain2DSurface::set_library(Ref<Terrain2DLibrary> library) {
	_library = (*library);
}

_FORCE_INLINE_ Vector2 Terrain2DSurface::transform_uv(const Vector2 &p_uv) const {
	Vector2 uv = p_uv;

	Rect2 r = _rect;

	uv.x *= r.size.x;
	uv.y *= r.size.y;
	uv.x += r.position.x;
	uv.y += r.position.y;

	return uv;
}

_FORCE_INLINE_ Vector2 Terrain2DSurface::transform_uv_scaled(const Vector2 &p_uv, const int p_current_x, const int p_current_y, const int p_max) const {
	Vector2 uv = p_uv;

	Rect2 r = _rect;

	float sizex = r.size.x / static_cast<float>(p_max);
	float sizey = r.size.y / static_cast<float>(p_max);

	uv.x *= sizex;
	uv.y *= sizey;

	uv.x += r.position.x + sizex * p_current_x;
	uv.y += r.position.y + sizey * p_current_y;

	return uv;
}

void Terrain2DSurface::refresh_rects() {
}

Terrain2DSurface::Terrain2DSurface() {
	_id = 0;
	_mesher_index = 0;
	_transparent = false;
	_liquid = false;
	_library = NULL;
}

Terrain2DSurface::~Terrain2DSurface() {
	_library = NULL;
}

void Terrain2DSurface::_bind_methods() {
	ClassDB::bind_method(D_METHOD("get_id"), &Terrain2DSurface::get_id);
	ClassDB::bind_method(D_METHOD("set_id", "value"), &Terrain2DSurface::set_id);
	ADD_PROPERTY(PropertyInfo(Variant::INT, "id"), "set_id", "get_id");

	ADD_PROPERTY(PropertyInfo(Variant::STRING, "voxel_name"), "set_name", "get_name");

	ClassDB::bind_method(D_METHOD("get_rect"), &Terrain2DSurface::get_rect);
	ClassDB::bind_method(D_METHOD("set_rect", "rect"), &Terrain2DSurface::set_rect);

	ClassDB::bind_method(D_METHOD("transform_uv", "uv"), &Terrain2DSurface::transform_uv);
	ClassDB::bind_method(D_METHOD("transform_uv_scaled", "uv", "p_current_x", "p_current_y", "max"), &Terrain2DSurface::transform_uv_scaled);

	ClassDB::bind_method(D_METHOD("refresh_rects"), &Terrain2DSurface::refresh_rects);
}