1 files changed, 44 insertions, 1 deletions

diff --git a/source/Player.cpp b/source/Player.cpp
index ae119a1fb..0ec6bb5ca 100644
--- a/source/Player.cpp
+++ b/source/Player.cpp
@@ -40,6 +40,8 @@ cPlayer::cPlayer(cClientHandle* a_Client, const AString & a_PlayerName)
 	, m_IP("")
 	, m_LastBlockActionTime( 0 )
 	, m_LastBlockActionCnt( 0 )
+        , m_AirLevel( MAX_AIR_LEVEL )
+        , m_AirTickTimer( DROWNING_TICKS )
 	, m_bVisible( true )
 	, m_LastGroundHeight( 0 )
 	, m_bTouchGround( false )
@@ -178,6 +180,10 @@ void cPlayer::Tick(float a_Dt, cChunk & a_Chunk)
 	}
 	
 	super::Tick(a_Dt, a_Chunk);
+
+        //handle air drowning stuff
+        HandleAir(a_Chunk);
+
 	if (m_bDirtyPosition)
 	{
 		// Apply food exhaustion from movement:
@@ -1200,7 +1206,7 @@ bool cPlayer::LoadFromDisk()
 	}
 
 	m_Health = root.get("health", 0).asInt();
-	
+	m_AirLevel            = root.get("air",            MAX_AIR_LEVEL).asInt();
 	m_FoodLevel           = root.get("food",           MAX_FOOD_LEVEL).asInt();
 	m_FoodSaturationLevel = root.get("foodSaturation", MAX_FOOD_LEVEL).asDouble();
 	m_FoodTickTimer       = root.get("foodTickTimer",  0).asInt();
@@ -1246,6 +1252,7 @@ bool cPlayer::SaveToDisk()
 	root["rotation"]       = JSON_PlayerRotation;
 	root["inventory"]      = JSON_Inventory;
 	root["health"]         = m_Health;
+        root["air"]            = m_AirLevel;
 	root["food"]           = m_FoodLevel;
 	root["foodSaturation"] = m_FoodSaturationLevel;
 	root["foodTickTimer"]  = m_FoodTickTimer;
@@ -1313,7 +1320,43 @@ void cPlayer::UseEquippedItem()
 }
 
 
+void cPlayer::HandleAir(cChunk & a_Chunk)
+{
+        //Ref.: http://www.minecraftwiki.net/wiki/Chunk_format
 
+        //see if the player is /submerged/ water (block above is water)
+        // Get the type of block the player's standing in:
+	BLOCKTYPE BlockIn;
+	int RelX = (int)floor(m_LastPosX) - a_Chunk.GetPosX() * cChunkDef::Width;
+	int RelY = (int)floor(m_LastPosY + 1.1);
+	int RelZ = (int)floor(m_LastPosZ) - a_Chunk.GetPosZ() * cChunkDef::Width;
+	// Use Unbounded, because we're being called *after* processing super::Tick(), which could have changed our chunk
+	VERIFY(a_Chunk.UnboundedRelGetBlockType(RelX, RelY, RelZ, BlockIn));
+
+        if (IsBlockWater(BlockIn))
+	{
+            //either reduce air level or damage player
+            if(m_AirLevel < 1)
+            {
+                if(m_AirTickTimer < 1)
+                {
+                    //damage player 
+		    TakeDamage(dtDrowning, NULL, 1, 1, 0);
+                    //reset timer
+                    m_AirTickTimer = DROWNING_TICKS;
+                }else{
+                    m_AirTickTimer -= 1;
+                }
+            }else{
+                //reduce air supply
+                m_AirLevel -= 1;
+            }
+	}else{
+                //set the air back to maximum
+                m_AirLevel = MAX_AIR_LEVEL;
+                m_AirTickTimer = DROWNING_TICKS;
+        }
+}
 
 
 void cPlayer::HandleFood(void)