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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef _FEATURE_HANDLER_H
#define _FEATURE_HANDLER_H
#include <deque>
#include <vector>
#include "System/float3.h"
#include "System/Misc/NonCopyable.h"
#include "System/creg/creg_cond.h"
#include "System/UnorderedSet.hpp"
#include "Sim/Features/Feature.h"
#include "Sim/Misc/SimObjectIDPool.h"
class CFeature;
struct UnitDef;
class LuaTable;
struct FeatureDef;
struct FeatureLoadParams {
const FeatureDef* featureDef;
const UnitDef* unitDef;
float3 pos;
float3 speed;
int featureID;
int teamID;
int allyTeamID;
short int heading;
short int facing;
int wreckLevels;
int smokeTime;
};
class LuaParser;
class CFeatureHandler : public spring::noncopyable
{
CR_DECLARE_STRUCT(CFeatureHandler)
public:
CFeatureHandler();
~CFeatureHandler();
CFeature* LoadFeature(const FeatureLoadParams& params);
CFeature* CreateWreckage(const FeatureLoadParams& params);
CFeature* GetFeature(unsigned int id) { return ((id < features.size())? features[id]: nullptr); }
void Update();
bool UpdateFeature(CFeature* feature);
bool TryFreeFeatureID(int id);
bool AddFeature(CFeature* feature);
void DeleteFeature(CFeature* feature);
void LoadFeaturesFromMap();
void SetFeatureUpdateable(CFeature* feature);
void TerrainChanged(int x1, int y1, int x2, int y2);
const spring::unordered_set<int>& GetActiveFeatureIDs() const { return activeFeatureIDs; }
private:
bool CanAddFeature(int id) const {
// do we want to be assigned a random ID and are any left in pool?
if (id < 0)
return true;
// is this ID not already in use?
if (id < features.size())
return (features[id] == nullptr);
// AddFeature will not make new room for us
return false;
}
void InsertActiveFeature(CFeature* feature);
private:
SimObjectIDPool idPool;
spring::unordered_set<int> activeFeatureIDs;
std::vector<int> deletedFeatureIDs;
std::vector<CFeature*> features;
std::vector<CFeature*> updateFeatures;
};
extern CFeatureHandler* featureHandler;
#endif // _FEATURE_HANDLER_H
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