1 files changed, 93 insertions, 0 deletions

diff --git a/src/Entities/FallingBlock.cpp b/src/Entities/FallingBlock.cpp
new file mode 100644
index 000000000..9fcd9ac80
--- /dev/null
+++ b/src/Entities/FallingBlock.cpp
@@ -0,0 +1,93 @@
+#include "Globals.h"
+
+#include "FallingBlock.h"
+#include "../World.h"
+#include "../ClientHandle.h"
+#include "../Simulator/SandSimulator.h"
+#include "../Chunk.h"
+
+
+
+
+
+cFallingBlock::cFallingBlock(const Vector3i & a_BlockPosition, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) :
+	super(etFallingBlock, a_BlockPosition.x + 0.5f, a_BlockPosition.y + 0.5f, a_BlockPosition.z + 0.5f, 0.98, 0.98),
+	m_BlockType(a_BlockType),
+	m_BlockMeta(a_BlockMeta),
+	m_OriginalPosition(a_BlockPosition)
+{
+}
+
+
+
+
+
+void cFallingBlock::SpawnOn(cClientHandle & a_ClientHandle)
+{
+	a_ClientHandle.SendSpawnFallingBlock(*this);
+}
+
+
+
+
+
+void cFallingBlock::Tick(float a_Dt, cChunk & a_Chunk)
+{
+	float MilliDt = a_Dt * 0.001f;
+	AddSpeedY(MilliDt * -9.8f);
+	AddPosY(GetSpeedY() * MilliDt);
+
+	// GetWorld()->BroadcastTeleportEntity(*this);  // Test position
+	
+	int BlockX = m_OriginalPosition.x;
+	int BlockY = (int)(GetPosY() - 0.5);
+	int BlockZ = m_OriginalPosition.z;
+	
+	if (BlockY < 0)
+	{
+		// Fallen out of this world, just continue falling until out of sight, then destroy:
+		if (BlockY < 100)
+		{
+			Destroy(true);
+		}
+		return;
+	}
+	
+	if (BlockY >= cChunkDef::Height)
+	{
+		// Above the world, just wait for it to fall back down
+		return;
+	}
+	
+	int idx = a_Chunk.MakeIndexNoCheck(BlockX - a_Chunk.GetPosX() * cChunkDef::Width, BlockY, BlockZ - a_Chunk.GetPosZ() * cChunkDef::Width);
+	BLOCKTYPE BlockBelow = a_Chunk.GetBlock(idx);
+	NIBBLETYPE BelowMeta = a_Chunk.GetMeta(idx);
+	if (cSandSimulator::DoesBreakFallingThrough(BlockBelow, BelowMeta))
+	{
+		// Fallen onto a block that breaks this into pickups (e. g. half-slab)
+		// Must finish the fall with coords one below the block:
+		cSandSimulator::FinishFalling(m_World, BlockX, BlockY, BlockZ, m_BlockType, m_BlockMeta);
+		Destroy(true);
+		return;
+	}
+	else if (!cSandSimulator::CanContinueFallThrough(BlockBelow))
+	{
+		// Fallen onto a solid block
+		/*
+		LOGD(
+			"Sand: Checked below at {%d, %d, %d} (rel {%d, %d, %d}), it's %s, finishing the fall.",
+			BlockX, BlockY, BlockZ,
+			BlockX - a_Chunk.GetPosX() * cChunkDef::Width, BlockY, BlockZ - a_Chunk.GetPosZ() * cChunkDef::Width,
+			ItemTypeToString(BlockBelow).c_str()
+		);
+		*/
+
+		cSandSimulator::FinishFalling(m_World, BlockX, BlockY + 1, BlockZ, m_BlockType, m_BlockMeta);
+		Destroy(true);
+		return;
+	}
+}
+
+
+
+