#ifndef __A_ARTIFACTS_H__
#define __A_ARTIFACTS_H__

#include "a_pickups.h"

class player_t;

// A powerup is a pseudo-inventory item that applies an effect to its
// owner while it is present.
class APowerup : public AInventory
{
	DECLARE_CLASS (APowerup, AInventory)
public:
	virtual void Tick ();
	virtual void Destroy ();
	virtual bool HandlePickup (AInventory *item);
	virtual AInventory *CreateCopy (AActor *other);
	virtual AInventory *CreateTossable ();
	virtual void Serialize (FArchive &arc);
	virtual void OwnerDied ();
	virtual bool GetNoTeleportFreeze();
	virtual PalEntry GetBlend ();
	virtual bool DrawPowerup (int x, int y);

	int EffectTics;
	PalEntry BlendColor;
	FNameNoInit Mode;
	double Strength;

protected:
	virtual void InitEffect ();
	virtual void DoEffect ();
	virtual void EndEffect ();

	friend void EndAllPowerupEffects(AInventory *item);
	friend void InitAllPowerupEffects(AInventory *item);
};

class PClassPowerupGiver: public PClassInventory
{
	DECLARE_CLASS(PClassPowerupGiver, PClassInventory)
protected:
public:
	virtual void ReplaceClassRef(PClass *oldclass, PClass *newclass);
};


// An artifact is an item that gives the player a powerup when activated.
class APowerupGiver : public AInventory
{
	DECLARE_CLASS_WITH_META (APowerupGiver, AInventory, PClassPowerupGiver)
public:
	virtual bool Use (bool pickup);
	virtual void Serialize (FArchive &arc);


	PClassActor *PowerupType;
	int EffectTics;			// Non-0 to override the powerup's default tics
	PalEntry BlendColor;	// Non-0 to override the powerup's default blend
	FNameNoInit Mode;		// Meaning depends on powerup - used for Invulnerability and Invisibility
	double Strength;		// Meaning depends on powerup - currently used only by Invisibility
};

class APowerInvulnerable : public APowerup
{
	DECLARE_CLASS (APowerInvulnerable, APowerup)
protected:
	void InitEffect ();
	void DoEffect ();
	void EndEffect ();
	int AlterWeaponSprite (visstyle_t *vis);
};

class APowerStrength : public APowerup
{
	DECLARE_CLASS (APowerStrength, APowerup)
public:
	PalEntry GetBlend ();
protected:
	void InitEffect ();
	void Tick ();
	bool HandlePickup (AInventory *item);
};

class APowerInvisibility : public APowerup
{
	DECLARE_CLASS (APowerInvisibility, APowerup)
protected:
	bool HandlePickup (AInventory *item);
	void InitEffect ();
	void DoEffect ();
	void EndEffect ();
	int AlterWeaponSprite (visstyle_t *vis);
};

class APowerIronFeet : public APowerup
{
	DECLARE_CLASS (APowerIronFeet, APowerup)
public:
	void AbsorbDamage (int damage, FName damageType, int &newdamage);
	void DoEffect ();
};

class APowerMask : public APowerIronFeet
{
	DECLARE_CLASS (APowerMask, APowerIronFeet)
public:
	void AbsorbDamage (int damage, FName damageType, int &newdamage);
	void DoEffect ();
};

class APowerLightAmp : public APowerup
{
	DECLARE_CLASS (APowerLightAmp, APowerup)
protected:
	void DoEffect ();
	void EndEffect ();
};

class APowerTorch : public APowerLightAmp
{
	DECLARE_CLASS (APowerTorch, APowerLightAmp)
public:
	void Serialize (FArchive &arc);
protected:
	void DoEffect ();
	int NewTorch, NewTorchDelta;
};

class APowerFlight : public APowerup
{
	DECLARE_CLASS (APowerFlight, APowerup)
public:
	bool DrawPowerup (int x, int y);
	void Serialize (FArchive &arc);

protected:
	void InitEffect ();
	void Tick ();
	void EndEffect ();

	bool HitCenterFrame;
};

class APowerWeaponLevel2 : public APowerup
{
	DECLARE_CLASS (APowerWeaponLevel2, APowerup)
protected:
	void InitEffect ();
	void EndEffect ();
};

class APowerSpeed : public APowerup
{
	DECLARE_CLASS (APowerSpeed, APowerup)
protected:
	void DoEffect ();
	void Serialize(FArchive &arc);
	double GetSpeedFactor();
public:
	int SpeedFlags;
};

#define PSF_NOTRAIL		1

class APowerMinotaur : public APowerup
{
	DECLARE_CLASS (APowerMinotaur, APowerup)
};

class APowerScanner : public APowerup
{
	DECLARE_CLASS (APowerScanner, APowerup)
};

class APowerTargeter : public APowerup
{
	DECLARE_CLASS (APowerTargeter, APowerup)
protected:
	void InitEffect ();
	void DoEffect ();
	void EndEffect ();
	void PositionAccuracy ();
	void Travelled ();
	void AttachToOwner(AActor *other);
	bool HandlePickup(AInventory *item);
};

class APowerFrightener : public APowerup
{
	DECLARE_CLASS (APowerFrightener, APowerup)
protected:
	void InitEffect ();
	void EndEffect ();
};

class APowerBuddha : public APowerup
{
	DECLARE_CLASS (APowerBuddha, APowerup)
protected:
	void InitEffect ();
	void EndEffect ();
};

class APowerTimeFreezer : public APowerup
{
	DECLARE_CLASS( APowerTimeFreezer, APowerup )
protected:
	void InitEffect( );
	void DoEffect( );
	void EndEffect( );
};

class APowerDamage : public APowerup
{
	DECLARE_CLASS( APowerDamage, APowerup )
protected:
	void InitEffect ();
	void EndEffect ();
	virtual void ModifyDamage (int damage, FName damageType, int &newdamage, bool passive);
};

class APowerProtection : public APowerup
{
	DECLARE_CLASS( APowerProtection, APowerup )
protected:
	void InitEffect ();
	void EndEffect ();
	virtual void ModifyDamage (int damage, FName damageType, int &newdamage, bool passive);
};

class APowerDrain : public APowerup
{
	DECLARE_CLASS( APowerDrain, APowerup )
protected:
	void InitEffect( );
	void EndEffect( );
};

class APowerRegeneration : public APowerup
{
	DECLARE_CLASS( APowerRegeneration, APowerup )
protected:
	void DoEffect();
};

class APowerHighJump : public APowerup
{
	DECLARE_CLASS( APowerHighJump, APowerup )
protected:
	void InitEffect( );
	void EndEffect( );
};

class APowerDoubleFiringSpeed : public APowerup
{
	DECLARE_CLASS( APowerDoubleFiringSpeed, APowerup )
protected:
	void InitEffect( );
	void EndEffect( );
};

class APowerInfiniteAmmo : public APowerup
{
	DECLARE_CLASS( APowerInfiniteAmmo, APowerup )
protected:
	void InitEffect( );
	void EndEffect( );
};

class APowerMorph : public APowerup
{
	DECLARE_CLASS( APowerMorph, APowerup )
public:
	void Serialize (FArchive &arc);
	void SetNoCallUndoMorph() { bNoCallUndoMorph = true; }

	FNameNoInit	PlayerClass, MorphFlash, UnMorphFlash;
	int MorphStyle;

protected:
	void InitEffect ();
	void EndEffect ();
	// Variables
	player_t *Player;
	bool bNoCallUndoMorph;	// Because P_UndoPlayerMorph() can call EndEffect recursively
};

#endif //__A_ARTIFACTS_H__