mirror of
https://github.com/worldforge/cyphesis
synced 2026-08-13 12:26:04 -04:00
89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
// Cyphesis Online RPG Server and AI Engine
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// Copyright (C) 2009 Alistair Riddoch
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software Foundation,
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// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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// $Id$
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#include "Domain.h"
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#include "TerrainProperty.h"
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#include "LocatedEntity.h"
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#include "common/debug.h"
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#include <iostream>
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#include <cassert>
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static const bool debug_flag = false;
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Domain * Domain::m_instance = 0;
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Domain::Domain() : m_refCount(0)
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{
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assert(m_instance == 0);
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m_instance = this;
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}
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Domain::~Domain()
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{
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assert(m_instance == this);
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m_instance = 0;
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}
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float Domain::constrainHeight(LocatedEntity * parent,
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const Point3D & pos,
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const std::string & mode)
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{
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assert(parent != 0);
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if (mode == "fixed") {
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return pos.z();
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}
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const TerrainProperty * tp = parent->getPropertyClass<TerrainProperty>("terrain");
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if (tp != 0) {
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if (mode == "floating") {
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return 0.f;
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}
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float h = pos.z();
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Vector3D normal;
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tp->getHeightAndNormal(pos.x(), pos.y(), h, normal);
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// FIXME Use a virtual movement_domain function to get the constraints
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debug(std::cout << "Fix height " << pos.z() << " to " << h
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<< std::endl << std::flush;);
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return h;
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} else if (parent->m_location.m_loc != 0) {
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static const Quaternion identity(Quaternion().identity());
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const Point3D & ppos = parent->m_location.pos();
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debug(std::cout << "parent " << parent->getId() << " of type "
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<< parent->getType() << " pos " << ppos.z()
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<< " my pos " << pos.z()
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<< std::endl << std::flush;);
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float h;
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const Quaternion & parent_orientation = parent->m_location.orientation().isValid() ? parent->m_location.orientation() : identity;
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h = constrainHeight(parent->m_location.m_loc,
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pos.toParentCoords(parent->m_location.pos(),
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parent_orientation),
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mode) - ppos.z();
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debug(std::cout << "Correcting height from " << pos.z() << " to " << h
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<< std::endl << std::flush;);
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return h;
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}
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return pos.z();
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}
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void Domain::tick(double t)
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{
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}
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