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// Cyphesis Online RPG Server and AI Engine
// Copyright (C) 2004 Alistair Riddoch
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
// $Id: TerrainProperty.cpp,v 1.12 2007-09-11 14:47:40 alriddoch Exp $
#include "TerrainProperty.h"
#include "common/log.h"
#include "common/debug.h"
#include <Mercator/Terrain.h>
#include <Mercator/Segment.h>
#include <Mercator/Surface.h>
#include <sstream>
#include <cassert>
static const bool debug_flag = false;
using Atlas::Message::Element;
using Atlas::Message::MapType;
using Atlas::Message::ListType;
using Atlas::Message::FloatType;
typedef Mercator::Terrain::Pointstore Pointstore;
typedef Mercator::Terrain::Pointcolumn Pointcolumn;
/// \brief TerrainProperty constructor
///
/// @param data Reference to varaible holding the value of this Property
/// @param modifiedTerrain Reference to a variable storing the set of
/// modified points
/// @param createdTerrain Reference to a variable storing the set of
/// created points
/// @param flags Flags indicating how this Property should be handled
TerrainProperty::TerrainProperty(Mercator::Terrain & data,
PointSet & modifiedTerrain,
PointSet & createdTerrain,
unsigned int flags) :
PropertyBase(flags),
m_data(data),
m_modifiedTerrain(modifiedTerrain),
m_createdTerrain(createdTerrain)
{
}
bool TerrainProperty::get(Element & ent) const
{
MapType & t = (ent = MapType()).asMap();
MapType & terrain = (t["points"] = MapType()).asMap();
const Pointstore & points = m_data.getPoints();
Pointstore::const_iterator Iend = points.end();
for (Pointstore::const_iterator I = points.begin(); I != Iend; ++I) {
const Pointcolumn & pointcol = I->second;
Pointcolumn::const_iterator J = pointcol.begin();
Pointcolumn::const_iterator Jend = pointcol.end();
for (; J != Jend; ++J) {
std::stringstream key;
key << I->first << "x" << J->first;
ListType & point = (terrain[key.str()] = ListType(3)).asList();
point[0] = (FloatType)(I->first);
point[1] = (FloatType)(J->first);
point[2] = (FloatType)(J->second.height());
}
}
t["surfaces"] = m_surfaces;
return true;
}
void TerrainProperty::set(const Element & ent)
{
if (!ent.isMap()) {
return;
}
const MapType & t = ent.asMap();
debug(std::cout << "TerrainProperty::setTerrain()"
<< std::endl << std::flush;);
const Pointstore & base_points = m_data.getPoints();
MapType::const_iterator I = t.find("points");
if (I != t.end() && I->second.isMap()) {
const MapType & points = I->second.asMap();
MapType::const_iterator Iend = points.end();
for (MapType::const_iterator I = points.begin(); I != Iend; ++I) {
if (!I->second.isList()) {
continue;
}
const ListType & point = I->second.asList();
if (point.size() != 3) {
continue;
}
int x = (int)point[0].asNum();
int y = (int)point[1].asNum();
Pointstore::const_iterator J = base_points.find(x);
if (J == base_points.end() ||
J->second.find(y) == J->second.end()) {
// Newly added point.
m_createdTerrain[x].insert(y);
} else {
// Modified point
PointSet::const_iterator K = m_createdTerrain.find(x);
if (K == m_createdTerrain.end() ||
K->second.find(y) == K->second.end()) {
// Already in database
m_modifiedTerrain[x].insert(y);
}
// else do nothing, as its currently waiting to be added.
}
m_data.setBasePoint(x, y, point[2].asNum());
// FIXME Add support for roughness and falloff, as done
// by damien in equator and FIXMEd out by me
}
}
I = t.find("surfaces");
if (I != t.end() && I->second.isList()) {
m_surfaces = I->second.List();
}
}
/// \brief Calculate the terrain height at the given x,y coordinates
float TerrainProperty::getHeight(float x, float y)
{
Mercator::Segment * s = m_data.getSegment(x, y);
if (s != 0 && !s->isValid()) {
s->populate();
}
return m_data.get(x, y);
}
/// \brief Get a number encoding the surface type at the given x,y coordinates
///
/// @param pos the x,y coordinates of the point on the terrain
/// @param material a reference to the integer to be used to store the
/// material identifier at this location.
int TerrainProperty::getSurface(const Point3D & pos, int & material)
{
float x = pos.x(),
y = pos.y();
Mercator::Segment * segment = m_data.getSegment(x, y);
if (segment == 0) {
debug(std::cerr << "No terrain at this point" << std::endl << std::flush;);
return -1;
}
if (!segment->isValid()) {
segment->populate();
}
x = x - segment->getResolution() * segment->getXRef();
y = y - segment->getResolution() * segment->getYRef();
const Mercator::Segment::Surfacestore & surfaces = segment->getSurfaces();
WFMath::Vector<3> normal;
float height = -23;
segment->getHeightAndNormal(x, y, height, normal);
debug(std::cout << "At the point " << x << "," << y
<< " of the segment the height is " << height << std::endl;
std::cout << "The segment has " << surfaces.size()
<< std::endl << std::flush;);
if (surfaces.size() == 0) {
log(ERROR, "The terrain has no surface data");
return -1;
}
Mercator::Surface & tile_surface = *surfaces.begin()->second;
if (!tile_surface.isValid()) {
tile_surface.populate();
}
material = tile_surface((int)x, (int)y, 0);
return 0;
}
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