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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef PROJECTILE_HANDLER_H
#define PROJECTILE_HANDLER_H
#include <array>
#include <vector>
#include "Rendering/Models/3DModel.h"
#include "Sim/Projectiles/ProjectileFunctors.h"
#include "System/float3.h"
// bypass id and event handling for unsynced projectiles (faster)
#define PH_UNSYNCED_PROJECTILE_EVENTS 0
class CProjectile;
class CUnit;
class CFeature;
class CPlasmaRepulser;
class CGroundFlash;
struct UnitDef;
struct FlyingPiece;
typedef std::vector<CProjectile*> ProjectileContainer; // <unsorted>
typedef std::vector<CGroundFlash*> GroundFlashContainer;
typedef std::vector<FlyingPiece> FlyingPieceContainer;
class CProjectileHandler
{
CR_DECLARE_STRUCT(CProjectileHandler)
public:
void Init();
void Kill();
/// @see ConfigHandler::ConfigNotifyCallback
void ConfigNotify(const std::string& key, const std::string& value);
CProjectile* GetProjectileBySyncedID(int id);
CProjectile* GetProjectileByUnsyncedID(int id);
void CheckUnitCollisions(CProjectile*, std::vector<CUnit*>&, const float3, const float3);
void CheckFeatureCollisions(CProjectile*, std::vector<CFeature*>&, const float3, const float3);
void CheckShieldCollisions(CProjectile*, std::vector<CPlasmaRepulser*>&, const float3, const float3);
void CheckUnitFeatureCollisions(ProjectileContainer&);
void CheckGroundCollisions(ProjectileContainer&);
void CheckCollisions();
void SetMaxParticles(int value) { maxParticles = std::max(0, value); }
void SetMaxNanoParticles(int value) { maxNanoParticles = std::max(0, value); }
void Update();
float GetParticleSaturation(bool randomized = true) const;
float GetNanoParticleSaturation(float priority) const {
const float total = std::max(1.0f, maxNanoParticles * priority);
const float fract = std::max(int(currentNanoParticles >= maxNanoParticles), currentNanoParticles) / total;
return std::min(1.0f, fract);
}
int GetCurrentParticles() const;
void AddProjectile(CProjectile* p);
void AddGroundFlash(CGroundFlash* flash) { groundFlashes.push_back(flash); }
void AddFlyingPiece(
const S3DModel* model,
const S3DModelPiece* piece,
const CMatrix44f& m,
const float3 pos,
const float3 speed,
const float2 pieceParams,
const int2 renderParams
);
void AddNanoParticle(const float3, const float3, const UnitDef*, int team, bool highPriority);
void AddNanoParticle(const float3, const float3, const UnitDef*, int team, float radius, bool inverse, bool highPriority);
public:
int maxParticles = 0;
int maxNanoParticles = 0;
int currentNanoParticles = 0;
// these vars are used to precache parts of GetCurrentParticles() calculations
int lastCurrentParticles = 0;
int lastProjectileCounts[2] = {0, 0};
// flying pieces (unsynced) are sorted from time to time to reduce GL state changes
std::array< bool, MODELTYPE_OTHER> resortFlyingPieces;
std::array<FlyingPieceContainer, MODELTYPE_OTHER> flyingPieces;
// [0] contains only projectiles that can not change simulation state
// [1] contains only projectiles that can change simulation state
ProjectileContainer projectileContainers[2];
// unsynced
GroundFlashContainer groundFlashes;
private:
// event-notifiers
void CreateProjectile(CProjectile*);
void DestroyProjectile(CProjectile*);
void UpdateProjectiles(bool);
void UpdateProjectiles() {
UpdateProjectiles( true);
UpdateProjectiles(false);
}
private:
// [0] := available unsynced projectile ID's
// [1] := available synced (weapon, piece) projectile ID's
std::vector<int> freeProjectileIDs[2];
// [0] := ID ==> projectile* map for living unsynced projectiles
// [1] := ID ==> projectile* map for living synced projectiles
std::vector<CProjectile*> projectileMaps[2];
};
extern CProjectileHandler projectileHandler;
#endif /* PROJECTILE_HANDLER_H */
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