From 3b47a07bac747be2be5e9f61152faa0a3d6b8044 Mon Sep 17 00:00:00 2001
From: Daniel O'Brien <marmot.daniel@gmail.com>
Date: Thu, 14 Nov 2013 00:50:47 +1100
Subject: Player Xp

---
 source/Entities/Player.h | 44 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 43 insertions(+), 1 deletion(-)

(limited to 'source/Entities/Player.h')

diff --git a/source/Entities/Player.h b/source/Entities/Player.h
index 01efa3681..81552fcf1 100644
--- a/source/Entities/Player.h
+++ b/source/Entities/Player.h
@@ -63,6 +63,27 @@ public:
 	
 	/// Returns the currently equipped boots; empty item if none
 	virtual cItem GetEquippedBoots(void) const override { return m_Inventory.GetEquippedBoots(); }
+
+	/** Sets the experience total - XpTotal, updates XpLevel and XpP as appropriate
+	Returns true on success
+	should really only be called at init or player death
+	*/
+	bool SetExperience(int a_XpTotal);
+
+	/* Adds Xp, will not inc more than MAX_EXPERIENCE_ORB_SIZE!
+	Returns true on success
+	Updates XpLevel and XpP appropriately
+	*/
+	bool AddExperience(int a_Xp_delta);
+
+	/// Gets the experience total - XpTotal
+	inline int GetExperience(void) { return m_XpTotal; }
+
+	/// Gets the current level - XpLevel
+	inline int GetExperienceLevel(void) { return m_XpLevel; }
+
+	/// Gets the experience bar percentage - XpP
+	inline float GetExperiencePercentage(void) { return m_XpP; }
 	
 	/// Starts charging the equipped bow
 	void StartChargingBow(void);
@@ -289,7 +310,7 @@ public:
 	virtual bool IsSubmerged(void) const{ return m_IsSubmerged; }
 
 	// tolua_end
-	
+
 	// cEntity overrides:
 	virtual bool IsCrouched (void) const { return m_IsCrouched; }
 	virtual bool IsSprinting(void) const { return m_IsSprinting; }
@@ -378,6 +399,27 @@ protected:
 
 	/// The world tick in which eating will be finished. -1 if not eating
 	Int64 m_EatingFinishTick;
+
+	/// Player Xp levels etc
+	int m_XpLevel; //store this and m_XpP to save calculating each time
+	float m_XpP; //between 0 & 1
+	int m_XpTotal;
+	int m_XpNextLevelTotal; //save calculating this often
+
+	//Xp level defines
+	#define XP_TO_LEVEL15 255
+	#define XP_PER_LEVEL_TO15 17
+	#define XP_TO_LEVEL30 825
+
+	/// Caculates the Xp at a given level, ref: http://minecraft.gamepedia.com/XP
+	inline int XpAtLevel(int level) { return (int) ((level <= 15)? (15*level) : 
+		((level <= 31)? (1.5*level*level - 29.5*level + 360) : 
+		(3.5*level*level - 151.5*level + 2220))); }
+
+	/// inverse of XpAtLevel, ref: http://minecraft.gamepedia.com/XP values are as per this with pre-calculations
+	inline int CalcLevelFromXp(int XpTotal) { return (int) ((XpTotal <= XP_TO_LEVEL15)? XpTotal / XP_PER_LEVEL_TO15 : //level 0-15 or...
+		(XpTotal <= XP_TO_LEVEL30)? ( 29.5 + sqrt( 870.25 - (6 * ( 360 - XpTotal )))) / 3 : //level 15-30
+		(151.5 + sqrt( 22952.25 - (14 * (2220 - XpTotal)))) / 7); }//level 30+
 	
 	bool m_IsChargingBow;
 	int  m_BowCharge;
-- 
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