1 files changed, 325 insertions, 0 deletions

diff --git a/src/Entities/ProjectileEntity.h b/src/Entities/ProjectileEntity.h
new file mode 100644
index 000000000..28dd76935
--- /dev/null
+++ b/src/Entities/ProjectileEntity.h
@@ -0,0 +1,325 @@
+
+// ProjectileEntity.h
+
+// Declares the cProjectileEntity class representing the common base class for projectiles, as well as individual projectile types
+
+
+
+
+
+#pragma once
+
+#include "Entity.h"
+
+
+
+
+
+// tolua_begin
+
+class cProjectileEntity :
+	public cEntity
+{
+	typedef cEntity super;
+	
+public:
+	/// The kind of the projectile. The numbers correspond to the network type ID used for spawning via the 0x17 packet.
+	enum eKind
+	{
+		pkArrow         = 60,
+		pkSnowball      = 61,
+		pkEgg           = 62,
+		pkGhastFireball = 63,
+		pkFireCharge    = 64,
+		pkEnderPearl    = 65,
+		pkExpBottle     = 75,
+		pkSplashPotion  = 73,
+		pkWitherSkull   = 66,
+		pkFishingFloat  = 90,
+	} ;
+	
+	// tolua_end
+	
+	CLASS_PROTODEF(cProjectileEntity);
+
+	cProjectileEntity(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, double a_Width, double a_Height);
+	cProjectileEntity(eKind a_Kind, cEntity * a_Creator, const Vector3d & a_Pos, const Vector3d & a_Speed, double a_Width, double a_Height);
+	
+	static cProjectileEntity * Create(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, const Vector3d * a_Speed = NULL);
+	
+	/// Called by the physics blocktracer when the entity hits a solid block, the hit position and the face hit (BLOCK_FACE_) is given
+	virtual void OnHitSolidBlock(const Vector3d & a_HitPos, char a_HitFace);
+	
+	/// Called by the physics blocktracer when the entity hits another entity
+	virtual void OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_HitPos) {}
+	
+	/// Called by Chunk when the projectile is eligible for player collection
+	virtual void CollectedBy(cPlayer * a_Dest);
+
+	// tolua_begin
+
+	/// Returns the kind of the projectile (fast class identification)
+	eKind GetProjectileKind(void) const { return m_ProjectileKind; }
+	
+	/// Returns the entity who created this projectile; may be NULL
+	cEntity * GetCreator(void) { return m_Creator; }
+	
+	/// Returns the string that is used as the entity type (class name) in MCA files
+	AString GetMCAClassName(void) const;
+	
+	/// Returns true if the projectile has hit the ground and is stuck there
+	bool IsInGround(void) const { return m_IsInGround; }
+	
+	// tolua_end
+	
+	/// Sets the internal InGround flag. To be used by MCA loader only!
+	void SetIsInGround(bool a_IsInGround) { m_IsInGround = a_IsInGround; }
+	
+protected:
+	eKind m_ProjectileKind;
+	
+	/// The entity who has created this projectile; may be NULL (e. g. for dispensers)
+	cEntity * m_Creator;
+	
+	/// True if the projectile has hit the ground and is stuck there
+	bool m_IsInGround;
+	
+	// cEntity overrides:
+	virtual void Tick(float a_Dt, cChunk & a_Chunk) override;
+	virtual void HandlePhysics(float a_Dt, cChunk & a_Chunk) override;
+	virtual void SpawnOn(cClientHandle & a_Client) override;
+	
+	// tolua_begin
+} ;
+
+
+
+
+
+class cArrowEntity :
+	public cProjectileEntity
+{
+	typedef cProjectileEntity super;
+	
+public:
+	/// Determines when the arrow can be picked up (depending on player gamemode). Corresponds to the MCA file "pickup" field
+	enum ePickupState
+	{
+		psNoPickup             = 0,
+		psInSurvivalOrCreative = 1,
+		psInCreative           = 2,
+	} ;
+
+	// tolua_end
+	
+	CLASS_PROTODEF(cArrowEntity);
+
+	/// Creates a new arrow with psNoPickup state and default damage modifier coeff
+	cArrowEntity(cEntity * a_Creator, double a_X, double a_Y, double a_Z, const Vector3d & a_Speed);
+	
+	/// Creates a new arrow as shot by a player, initializes it from the player object
+	cArrowEntity(cPlayer & a_Player, double a_Force);
+	
+	// tolua_begin
+	
+	/// Returns whether the arrow can be picked up by players
+	ePickupState GetPickupState(void) const { return m_PickupState; }
+	
+	/// Sets a new pickup state
+	void SetPickupState(ePickupState a_PickupState) { m_PickupState = a_PickupState; }
+	
+	/// Returns the damage modifier coeff.
+	double GetDamageCoeff(void) const { return m_DamageCoeff; }
+	
+	/// Sets the damage modifier coeff
+	void SetDamageCoeff(double a_DamageCoeff) { m_DamageCoeff = a_DamageCoeff; }
+	
+	/// Returns true if the specified player can pick the arrow up
+	bool CanPickup(const cPlayer & a_Player) const;
+	
+	/// Returns true if the arrow is set as critical
+	bool IsCritical(void) const { return m_IsCritical; }
+	
+	/// Sets the IsCritical flag
+	void SetIsCritical(bool a_IsCritical) { m_IsCritical = a_IsCritical; }
+	
+	// tolua_end
+	
+protected:
+
+	/// Determines when the arrow can be picked up by players
+	ePickupState m_PickupState;
+	
+	/// The coefficient applied to the damage that the arrow will deal, based on the bow enchantment. 2.0 for normal arrow
+	double m_DamageCoeff;
+	
+	/// If true, the arrow deals more damage
+	bool m_IsCritical;
+
+	/// Timer for pickup collection animation or five minute timeout
+	float m_Timer;
+
+	/// If true, the arrow is in the process of being collected - don't go to anyone else
+	bool m_bIsCollected;
+
+	/// Stores the block position that arrow is lodged into, sets m_IsInGround to false if it becomes air
+	Vector3i m_HitBlockPos;
+	
+	// cProjectileEntity overrides:
+	virtual void OnHitSolidBlock(const Vector3d & a_HitPos, char a_HitFace) override;
+	virtual void OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_HitPos) override;
+	virtual void CollectedBy(cPlayer * a_Player) override;
+	virtual void Tick(float a_Dt, cChunk & a_Chunk) override;
+	
+	// tolua_begin
+} ;
+
+
+
+
+
+class cThrownEggEntity :
+	public cProjectileEntity
+{
+	typedef cProjectileEntity super;
+	
+public:
+
+	// tolua_end
+	
+	CLASS_PROTODEF(cThrownEggEntity);
+
+	cThrownEggEntity(cEntity * a_Creator, double a_X, double a_Y, double a_Z, const Vector3d & a_Speed);
+	
+protected:
+
+	// tolua_end
+	
+	// cProjectileEntity overrides:
+	virtual void OnHitSolidBlock(const Vector3d & a_HitPos, char a_HitFace) override;
+
+	// tolua_begin
+	
+} ;
+
+
+
+
+
+class cThrownEnderPearlEntity :
+	public cProjectileEntity
+{
+	typedef cProjectileEntity super;
+	
+public:
+
+	// tolua_end
+	
+	CLASS_PROTODEF(cThrownEnderPearlEntity);
+
+	cThrownEnderPearlEntity(cEntity * a_Creator, double a_X, double a_Y, double a_Z, const Vector3d & a_Speed);
+	
+protected:
+
+	// tolua_end
+	
+	// cProjectileEntity overrides:
+	virtual void OnHitSolidBlock(const Vector3d & a_HitPos, char a_HitFace) override;
+
+	// tolua_begin
+	
+} ;
+
+
+
+
+
+class cThrownSnowballEntity :
+	public cProjectileEntity
+{
+	typedef cProjectileEntity super;
+	
+public:
+
+	// tolua_end
+	
+	CLASS_PROTODEF(cThrownSnowballEntity);
+
+	cThrownSnowballEntity(cEntity * a_Creator, double a_X, double a_Y, double a_Z, const Vector3d & a_Speed);
+	
+protected:
+	
+	// cProjectileEntity overrides:
+	virtual void OnHitSolidBlock(const Vector3d & a_HitPos, char a_HitFace) override;
+
+	// tolua_begin
+	
+} ;
+
+
+
+
+
+class cGhastFireballEntity :
+	public cProjectileEntity
+{
+	typedef cProjectileEntity super;
+
+public:
+
+	// tolua_end
+	
+	CLASS_PROTODEF(cGhastFireballEntity);
+	
+	cGhastFireballEntity(cEntity * a_Creator, double a_X, double a_Y, double a_Z, const Vector3d & a_Speed);
+	
+protected:
+
+	void Explode(int a_BlockX, int a_BlockY, int a_BlockZ);
+	
+	// cProjectileEntity overrides:
+	virtual void OnHitSolidBlock(const Vector3d & a_HitPos, char a_HitFace) override;
+	virtual void OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_HitPos) override;
+
+	// TODO: Deflecting the fireballs by arrow- or sword- hits
+	
+	// tolua_begin
+	
+} ;
+
+
+
+
+
+class cFireChargeEntity :
+	public cProjectileEntity
+{
+	typedef cProjectileEntity super;
+
+public:
+
+	// tolua_end
+	
+	CLASS_PROTODEF(cFireChargeEntity);
+	
+	cFireChargeEntity(cEntity * a_Creator, double a_X, double a_Y, double a_Z, const Vector3d & a_Speed);
+	
+protected:
+
+	void Explode(int a_BlockX, int a_BlockY, int a_BlockZ);
+
+	// cProjectileEntity overrides:
+	virtual void OnHitSolidBlock(const Vector3d & a_HitPos, char a_HitFace) override;
+	virtual void OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_HitPos) override;
+
+	// tolua_begin
+	
+} ;
+
+
+
+
+// tolua_end
+
+
+