/* Copyright: (c) Kayne Ruse 2013-2015
 * 
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event will the authors be held liable for any damages
 * arising from the use of this software.
 * 
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 * 
 * 1. The origin of this software must not be misrepresented; you must not
 * claim that you wrote the original software. If you use this software
 * in a product, an acknowledgment in the product documentation would be
 * appreciated but is not required.
 * 
 * 2. Altered source versions must be plainly marked as such, and must not be
 * misrepresented as being the original software.
 * 
 * 3. This notice may not be removed or altered from any source
 * distribution.
*/
#include "region.hpp"

#include <cmath>
#include <cstring>
#include <stdexcept>

#include <iostream>

int snapToBase(int base, int x) {
	return floor((double)x / base) * base;
}

Region::Region(int argX, int argY): x(argX), y(argY) {
	if (x != snapToBase(REGION_WIDTH, x) || y != snapToBase(REGION_HEIGHT, y)) {
		throw(std::invalid_argument("Region location is off grid"));
	}
	memset(tiles, 0, REGION_WIDTH*REGION_HEIGHT*REGION_DEPTH*sizeof(type_t));
}

Region::Region(Region const& rhs): x(rhs.x), y(rhs.y) {
	memcpy(tiles, rhs.tiles, REGION_WIDTH*REGION_HEIGHT*REGION_DEPTH*sizeof(type_t));
	solid = rhs.solid;

	//debugging
	std::cout << "Moved: (" << x << ", " << y << "): " << int(***tiles) << ", " << int(***rhs.tiles) << std::endl;
}

Region::type_t Region::SetTile(int x, int y, int z, type_t v) {
	if (x < 0 || y < 0 || z < 0 || x >= REGION_WIDTH || y >= REGION_HEIGHT || z >= REGION_DEPTH) {
		throw(std::out_of_range("Region::SetTile() argument out of range"));
	}
	return tiles[x][y][z] = v;
}

Region::type_t Region::GetTile(int x, int y, int z) {
	if (x < 0 || y < 0 || z < 0 || x >= REGION_WIDTH || y >= REGION_HEIGHT || z >= REGION_DEPTH) {
		throw(std::out_of_range("Region::GetTile() argument out of range"));
	}
	return tiles[x][y][z];
}

bool Region::SetSolid(int x, int y, bool b) {
	if (x < 0 || y < 0 || x >= REGION_WIDTH || y >= REGION_HEIGHT) {
		throw(std::out_of_range("Region::SetSolid() argument out of range"));
	}
	return solid[x * REGION_WIDTH + y] = b;
}

bool Region::GetSolid(int x, int y) {
	if (x < 0 || y < 0 || x >= REGION_WIDTH || y >= REGION_HEIGHT) {
		throw(std::out_of_range("Region::GetSolid() argument out of range"));
	}
	return solid[x * REGION_WIDTH + y];
}

int Region::GetX() const {
	return x;
}

int Region::GetY() const {
	return y;
}

std::bitset<REGION_WIDTH*REGION_HEIGHT>* Region::GetSolidBitset() {
	return &solid;
}