From dace1f7bd2e661b4c771322162e9e1b52551dd56 Mon Sep 17 00:00:00 2001
From: James Ravenscroft <ravenscroftj@gmail.com>
Date: Fri, 9 Aug 2013 08:37:39 +0100
Subject: Added IsSwimming and IsSubmerged flags and access methods

---
 source/Player.cpp | 37 ++++++++++++++++++++++++++++---------
 1 file changed, 28 insertions(+), 9 deletions(-)

(limited to 'source/Player.cpp')

diff --git a/source/Player.cpp b/source/Player.cpp
index 6219523cf..eab6e08e5 100644
--- a/source/Player.cpp
+++ b/source/Player.cpp
@@ -61,6 +61,8 @@ cPlayer::cPlayer(cClientHandle* a_Client, const AString & a_PlayerName)
 	, m_SprintingMaxSpeed(0.13)
 	, m_IsCrouched(false)
 	, m_IsSprinting(false)
+        , m_IsSwimming(false)
+        , m_IsSubmerged(false)
 	, m_EatingFinishTick(-1)
 {
 	LOGD("Created a player object for \"%s\" @ \"%s\" at %p, ID %d", 
@@ -181,8 +183,11 @@ void cPlayer::Tick(float a_Dt, cChunk & a_Chunk)
 	
 	super::Tick(a_Dt, a_Chunk);
 
-	//handle air drowning stuff
-	HandleAir(a_Chunk);
+        // set player swimming state
+        SetSwimState( a_Chunk);
+
+	// handle air drowning stuff
+	HandleAir();
 
 	if (m_bDirtyPosition)
 	{
@@ -1326,20 +1331,34 @@ void cPlayer::UseEquippedItem()
 	GetInventory().DamageEquippedItem();
 }
 
-
-void cPlayer::HandleAir(cChunk & a_Chunk)
+void cPlayer::SetSwimState(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 RelY = (int)floor(m_LastPosY + 0.1);
 	int RelZ = (int)floor(m_LastPosZ) - a_Chunk.GetPosZ() * cChunkDef::Width;
+        // first we check if the player is swimming
+
 	// 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))
+        m_IsSwimming = IsBlockWater(BlockIn);
+        
+        // now we check if the player is submerged
+
+      	VERIFY(a_Chunk.UnboundedRelGetBlockType(RelX, RelY+1, RelZ, BlockIn));
+
+        m_IsSubmerged = IsBlockWater(BlockIn);
+}
+
+void cPlayer::HandleAir()
+{
+	// 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:
+
+	if (IsSubmerged())
 	{
 		// either reduce air level or damage player
 		if(m_AirLevel < 1)
-- 
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