#include "terrain_chunk.h"
#include "terrain_editor/terrain_mesh_generator.h"

void TerrainChunk::_bind_methods() {}

void TerrainChunk::ready() {
	if ((this->generator = cast_to<TerrainMeshGenerator>(get_parent()))) {
		this->generator->connect(TerrainMeshGenerator::sig_primitives_changed, callable_mp(this, &self_type::on_terrain_changed));
	} else {
		print_error(vformat("Chunk %s ready without generator.", get_path()));
		return;
	}
	this->set_mesh(this->lod1);
	on_terrain_changed();
}

void TerrainChunk::on_terrain_changed() {
	if (this->generator) {
		Vector3 const position{ get_global_position() };
		this->generator->generate_grid({ { position.x, position.z }, { this->size, this->size } }, this->mesh, this->lod1_detail);
	}
}

void TerrainChunk::_notification(int what) {
	switch (what) {
		default:
			return;
		case NOTIFICATION_READY:
			ready();
			return;
	}
}

void TerrainChunk::set_size(float size) {
	this->size = size;
	on_terrain_changed();
}

float TerrainChunk::get_size() const {
	return this->size;
}

void TerrainChunk::set_lod1_detail(int detail) {
	this->lod1_detail = detail;
	on_terrain_changed();
}

int TerrainChunk::get_lod1_detail() const {
	return this->lod1_detail;
}