#include "terrain_surface_simple.h"

#include "terrain_library_simple.h"

int TerrainSurfaceSimple::get_atlas_x(const TerrainSurfaceSides side) const {
	int indx = (side * 2);

	return _atlas_positions[indx];
}
void TerrainSurfaceSimple::set_atlas_x(const TerrainSurfaceSides side, int value) {
	int indx = (side * 2);

	_atlas_positions[indx] = value;
}

int TerrainSurfaceSimple::get_atlas_y(const TerrainSurfaceSides side) const {
	int indx = (side * 2) + 1;

	return _atlas_positions[indx];
}
void TerrainSurfaceSimple::set_atlas_y(const TerrainSurfaceSides side, int value) {
	int indx = (side * 2) + 1;

	_atlas_positions[indx] = value;
}

void TerrainSurfaceSimple::refresh_rects() {
	TerrainLibrarySimple *lib = Object::cast_to<TerrainLibrarySimple>(_library);

	ERR_FAIL_COND(lib == NULL);

	for (int i = 0; i < TERRAIN_SIDES_COUNT; ++i) {
		float culomn = 1.0 / static_cast<float>(lib->get_atlas_columns());
		float row = 1.0 / static_cast<float>(lib->get_atlas_rows());

		Rect2 r;

		r.position.x = _atlas_positions[i * 2] * culomn;
		r.position.y = _atlas_positions[i * 2 + 1] * row;

		r.size.x = culomn;
		r.size.y = row;

		_rects[i] = r;
	}
}

TerrainSurfaceSimple::TerrainSurfaceSimple() {
	for (int i = 0; i < TERRAIN_SIDES_ARRAY_SIZE; ++i) {
		_atlas_positions[i] = 0;
	}
}

TerrainSurfaceSimple::~TerrainSurfaceSimple() {
}

void TerrainSurfaceSimple::_bind_methods() {
	ClassDB::bind_method(D_METHOD("get_atlas_x", "side"), &TerrainSurfaceSimple::get_atlas_x);
	ClassDB::bind_method(D_METHOD("set_atlas_x", "side", "value"), &TerrainSurfaceSimple::set_atlas_x);

	ClassDB::bind_method(D_METHOD("get_atlas_y", "side"), &TerrainSurfaceSimple::get_atlas_y);
	ClassDB::bind_method(D_METHOD("set_atlas_y", "side", "value"), &TerrainSurfaceSimple::set_atlas_y);

	ADD_PROPERTYI(PropertyInfo(Variant::INT, "top_atlas_x"), "set_atlas_x", "get_atlas_x", TERRAIN_SIDE_TOP);
	ADD_PROPERTYI(PropertyInfo(Variant::INT, "top_atlas_y"), "set_atlas_y", "get_atlas_y", TERRAIN_SIDE_TOP);

	ADD_PROPERTYI(PropertyInfo(Variant::INT, "bottom_atlas_x"), "set_atlas_x", "get_atlas_x", TERRAIN_SIDE_BOTTOM);
	ADD_PROPERTYI(PropertyInfo(Variant::INT, "bottom_atlas_y"), "set_atlas_y", "get_atlas_y", TERRAIN_SIDE_BOTTOM);

	ADD_PROPERTYI(PropertyInfo(Variant::INT, "side_atlas_x"), "set_atlas_x", "get_atlas_x", TERRAIN_SIDE_SIDE);
	ADD_PROPERTYI(PropertyInfo(Variant::INT, "side_atlas_y"), "set_atlas_y", "get_atlas_y", TERRAIN_SIDE_SIDE);
}