mirror of
https://github.com/vcmi/vcmi.git
synced 2024-12-28 23:06:24 +02:00
180 lines
3.7 KiB
C++
180 lines
3.7 KiB
C++
/*
|
|
* CGPathNode.cpp, part of VCMI engine
|
|
*
|
|
* Authors: listed in file AUTHORS in main folder
|
|
*
|
|
* License: GNU General Public License v2.0 or later
|
|
* Full text of license available in license.txt file, in main folder
|
|
*
|
|
*/
|
|
#include "StdInc.h"
|
|
#include "CGPathNode.h"
|
|
|
|
#include "CPathfinder.h"
|
|
|
|
#include "../gameState/CGameState.h"
|
|
#include "../mapObjects/CGHeroInstance.h"
|
|
#include "../mapping/CMapDefines.h"
|
|
|
|
VCMI_LIB_NAMESPACE_BEGIN
|
|
|
|
static bool canSeeObj(const CGObjectInstance * obj)
|
|
{
|
|
/// Pathfinder should ignore placed events
|
|
return obj != nullptr && obj->ID != Obj::EVENT;
|
|
}
|
|
|
|
const CGPathNode & CGPath::currNode() const
|
|
{
|
|
assert(nodes.size() > 1);
|
|
return nodes[nodes.size()-1];
|
|
}
|
|
|
|
const CGPathNode & CGPath::nextNode() const
|
|
{
|
|
assert(nodes.size() > 1);
|
|
return nodes[nodes.size()-2];
|
|
}
|
|
|
|
const CGPathNode & CGPath::lastNode() const
|
|
{
|
|
assert(nodes.size() > 1);
|
|
return nodes[0];
|
|
}
|
|
|
|
int3 CGPath::startPos() const
|
|
{
|
|
return nodes[nodes.size()-1].coord;
|
|
}
|
|
|
|
int3 CGPath::endPos() const
|
|
{
|
|
return nodes[0].coord;
|
|
}
|
|
|
|
CPathsInfo::CPathsInfo(const int3 & Sizes, const CGHeroInstance * hero_)
|
|
: sizes(Sizes), hero(hero_)
|
|
{
|
|
nodes.resize(boost::extents[ELayer::NUM_LAYERS][sizes.z][sizes.x][sizes.y]);
|
|
}
|
|
|
|
CPathsInfo::~CPathsInfo() = default;
|
|
|
|
const CGPathNode * CPathsInfo::getPathInfo(const int3 & tile) const
|
|
{
|
|
assert(vstd::iswithin(tile.x, 0, sizes.x));
|
|
assert(vstd::iswithin(tile.y, 0, sizes.y));
|
|
assert(vstd::iswithin(tile.z, 0, sizes.z));
|
|
|
|
return getNode(tile);
|
|
}
|
|
|
|
bool CPathsInfo::getPath(CGPath & out, const int3 & dst) const
|
|
{
|
|
out.nodes.clear();
|
|
const CGPathNode * curnode = getNode(dst);
|
|
if(!curnode->theNodeBefore)
|
|
return false;
|
|
|
|
while(curnode)
|
|
{
|
|
const CGPathNode cpn = * curnode;
|
|
curnode = curnode->theNodeBefore;
|
|
out.nodes.push_back(cpn);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
const CGPathNode * CPathsInfo::getNode(const int3 & coord) const
|
|
{
|
|
const auto * landNode = &nodes[ELayer::LAND][coord.z][coord.x][coord.y];
|
|
if(landNode->reachable())
|
|
return landNode;
|
|
else
|
|
return &nodes[ELayer::SAIL][coord.z][coord.x][coord.y];
|
|
}
|
|
|
|
PathNodeInfo::PathNodeInfo()
|
|
: node(nullptr), nodeObject(nullptr), tile(nullptr), coord(-1, -1, -1), guarded(false), isInitialPosition(false)
|
|
{
|
|
}
|
|
|
|
void PathNodeInfo::setNode(CGameState * gs, CGPathNode * n)
|
|
{
|
|
node = n;
|
|
|
|
if(coord != node->coord)
|
|
{
|
|
assert(node->coord.valid());
|
|
|
|
coord = node->coord;
|
|
tile = gs->getTile(coord);
|
|
nodeObject = tile->topVisitableObj();
|
|
|
|
if(nodeObject && nodeObject->ID == Obj::HERO)
|
|
{
|
|
nodeHero = dynamic_cast<const CGHeroInstance *>(nodeObject);
|
|
nodeObject = tile->topVisitableObj(true);
|
|
|
|
if(!nodeObject)
|
|
nodeObject = nodeHero;
|
|
}
|
|
else
|
|
{
|
|
nodeHero = nullptr;
|
|
}
|
|
}
|
|
|
|
guarded = false;
|
|
}
|
|
|
|
void PathNodeInfo::updateInfo(CPathfinderHelper * hlp, CGameState * gs)
|
|
{
|
|
if(gs->guardingCreaturePosition(node->coord).valid() && !isInitialPosition)
|
|
{
|
|
guarded = true;
|
|
}
|
|
|
|
if(nodeObject)
|
|
{
|
|
objectRelations = gs->getPlayerRelations(hlp->owner, nodeObject->tempOwner);
|
|
}
|
|
|
|
if(nodeHero)
|
|
{
|
|
heroRelations = gs->getPlayerRelations(hlp->owner, nodeHero->tempOwner);
|
|
}
|
|
}
|
|
|
|
bool PathNodeInfo::isNodeObjectVisitable() const
|
|
{
|
|
/// Hero can't visit objects while walking on water or flying
|
|
return (node->layer == EPathfindingLayer::LAND || node->layer == EPathfindingLayer::SAIL)
|
|
&& (canSeeObj(nodeObject) || canSeeObj(nodeHero));
|
|
}
|
|
|
|
|
|
CDestinationNodeInfo::CDestinationNodeInfo():
|
|
blocked(false),
|
|
action(EPathNodeAction::UNKNOWN)
|
|
{
|
|
}
|
|
|
|
void CDestinationNodeInfo::setNode(CGameState * gs, CGPathNode * n)
|
|
{
|
|
PathNodeInfo::setNode(gs, n);
|
|
|
|
blocked = false;
|
|
action = EPathNodeAction::UNKNOWN;
|
|
}
|
|
|
|
bool CDestinationNodeInfo::isBetterWay() const
|
|
{
|
|
if(node->turns == 0xff) //we haven't been here before
|
|
return true;
|
|
else
|
|
return cost < node->getCost(); //this route is faster
|
|
}
|
|
|
|
VCMI_LIB_NAMESPACE_END
|