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/***************************************************************************
* Copyright (C) 2005-2011 by the FIFE team *
* http://www.fifengine.net *
* This file is part of FIFE. *
* *
* FIFE is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2.1 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
// Standard C++ library includes
// 3rd party library includes
// FIFE includes
// These includes are split up in two parts, separated by one empty line
// First block: files included from the FIFE root src directory
// Second block: files included from the same folder
#include "util/base/exception.h"
#include "model/metamodel/grids/cellgrid.h"
#include "layer.h"
namespace FIFE {
static std::string INVALID_LAYER_SET = "Cannot set layer coordinates, given layer is not initialized properly";
static std::string INVALID_LAYER_GET = "Cannot get layer coordinates, layer is not initialized properly";
Location::Location() {
reset();
}
Location::Location(const Location& loc) {
reset();
m_layer = loc.m_layer;
m_exact_layer_coords = loc.m_exact_layer_coords;
}
Location::Location(Layer* layer) {
reset();
m_layer = layer;
}
Location::~Location() {
}
void Location::reset() {
m_exact_layer_coords.x = 0;
m_exact_layer_coords.y = 0;
m_exact_layer_coords.z = 0;
m_layer = NULL;
}
Location& Location::operator=(const Location& rhs) {
m_layer = rhs.m_layer;
m_exact_layer_coords.x = rhs.m_exact_layer_coords.x;
m_exact_layer_coords.y = rhs.m_exact_layer_coords.y;
m_exact_layer_coords.z = rhs.m_exact_layer_coords.z;
return *this;
}
Map* Location::getMap() const {
if (!m_layer) {
return NULL;
}
return m_layer->getMap();
}
void Location::setLayer(Layer* layer) {
m_layer = layer;
}
Layer* Location::getLayer() const {
return m_layer;
}
void Location::setExactLayerCoordinates(const ExactModelCoordinate& coordinates) {
if (!isValid()) {
throw NotSet(INVALID_LAYER_SET);
}
m_exact_layer_coords = coordinates;
}
void Location::setLayerCoordinates(const ModelCoordinate& coordinates) {
setExactLayerCoordinates(intPt2doublePt(coordinates));
}
void Location::setMapCoordinates(const ExactModelCoordinate& coordinates) {
if (!isValid()) {
throw NotSet(INVALID_LAYER_SET);
}
m_exact_layer_coords = m_layer->getCellGrid()->toExactLayerCoordinates(coordinates);
}
ExactModelCoordinate& Location::getExactLayerCoordinatesRef() {
return m_exact_layer_coords;
}
ExactModelCoordinate Location::getExactLayerCoordinates() const {
return m_exact_layer_coords;
}
ModelCoordinate Location::getLayerCoordinates() const {
return ModelCoordinate(doublePt2intPt(m_exact_layer_coords));
}
ExactModelCoordinate Location::getMapCoordinates() const {
return m_layer->getCellGrid()->toMapCoordinates(m_exact_layer_coords);
}
bool Location::isValid() const {
return isValid(m_layer);
}
bool Location::isValid(const Layer* layer) const {
return (layer && layer->getCellGrid());
}
ExactModelCoordinate Location::getExactLayerCoordinates(const Layer* layer) const {
if (!isValid(layer)) {
throw NotSet(INVALID_LAYER_GET);
}
if (layer == m_layer) {
return m_exact_layer_coords;
}
CellGrid* cg1 = m_layer->getCellGrid();
CellGrid* cg2 = layer->getCellGrid();
return cg2->toExactLayerCoordinates(cg1->toMapCoordinates(m_exact_layer_coords));
}
ModelCoordinate Location::getLayerCoordinates(const Layer* layer) const {
if (!isValid(layer)) {
throw NotSet(INVALID_LAYER_GET);
}
if (layer == m_layer) {
return getLayerCoordinates();
}
CellGrid* cg1 = m_layer->getCellGrid();
CellGrid* cg2 = layer->getCellGrid();
return cg2->toLayerCoordinates(cg1->toMapCoordinates(m_exact_layer_coords));
}
double Location::getCellOffsetDistance() const {
const ExactModelCoordinate& pt = m_exact_layer_coords;
double dx = pt.x - static_cast<double>(static_cast<int32_t>(pt.x));
double dy = pt.y - static_cast<double>(static_cast<int32_t>(pt.y));
return Mathd::Sqrt(dx*dx + dy*dy);
}
std::ostream& operator<<(std::ostream& os, const Location& l) {
ExactModelCoordinate p = l.getExactLayerCoordinates();
return os << "x=" << p.x << ", y=" << p.y;
}
double Location::getMapDistanceTo(const Location& location) const{
ExactModelCoordinate current = getMapCoordinates();
ExactModelCoordinate target = location.getMapCoordinates();
double rx = current.x - target.x;
double ry = current.y - target.y;
double rz = current.z - target.z;
return Mathd::Sqrt(rx*rx + ry*ry + rz*rz);
}
double Location::getLayerDistanceTo(const Location& location) const{
ModelCoordinate current = getLayerCoordinates();
ModelCoordinate target = location.getLayerCoordinates(m_layer);
double rx = current.x - target.x;
double ry = current.y - target.y;
double rz = current.z - target.z;
return Mathd::Sqrt(rx*rx + ry*ry + rz*rz);
}
}
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