From 5b62c4c3145c08b093521e42c565922fa85de4ad Mon Sep 17 00:00:00 2001
From: Tiger Wang <ziwei.tiger@hotmail.co.uk>
Date: Fri, 26 Jun 2015 17:24:51 -0500
Subject: Reorganised the redstone simulator

-> Many thanks to @worktycho for the idea, and @Haxi52 for the implementation plan!
* Uses classes and inheritance now
* Speed should be improved
---
 .../PressurePlateHandler.h                         | 111 +++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 src/Simulator/IncrementalRedstoneSimulator/PressurePlateHandler.h

(limited to 'src/Simulator/IncrementalRedstoneSimulator/PressurePlateHandler.h')

diff --git a/src/Simulator/IncrementalRedstoneSimulator/PressurePlateHandler.h b/src/Simulator/IncrementalRedstoneSimulator/PressurePlateHandler.h
new file mode 100644
index 000000000..07bb1fdc1
--- /dev/null
+++ b/src/Simulator/IncrementalRedstoneSimulator/PressurePlateHandler.h
@@ -0,0 +1,111 @@
+
+#pragma once
+
+#include "RedstoneHandler.h"
+#include "BoundingBox.h"
+
+
+
+
+
+class cPressurePlateHandler : public cRedstoneHandler
+{
+	typedef cRedstoneHandler super;
+public:
+
+	cPressurePlateHandler(cWorld & a_World) :
+		super(a_World)
+	{
+	}
+
+	virtual unsigned char GetPowerDeliveredToPosition(const Vector3i & a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta, const Vector3i & a_QueryPosition, BLOCKTYPE a_QueryBlockType) override
+	{
+		UNUSED(a_BlockType);
+		UNUSED(a_Meta);
+		UNUSED(a_QueryPosition);
+		UNUSED(a_QueryBlockType);
+
+		return static_cast<cIncrementalRedstoneSimulator *>(m_World.GetRedstoneSimulator())->GetChunkData()->GetCachedPowerData(a_Position).PowerLevel;
+	}
+
+	virtual unsigned char GetPowerLevel(const Vector3i & a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta) override
+	{
+		UNUSED(a_Meta);
+
+		class cPressurePlateCallback :
+			public cEntityCallback
+		{
+		public:
+			cPressurePlateCallback(void) :
+				m_NumberOfEntities(0),
+				m_FoundPlayer(false)
+			{
+			}
+
+			virtual bool Item(cEntity * a_Entity) override
+			{
+				if (a_Entity->IsPlayer())
+				{
+					m_FoundPlayer = true;
+				}
+
+				m_NumberOfEntities++;
+				return false;
+			}
+
+			unsigned int m_NumberOfEntities;
+			bool m_FoundPlayer;
+		} PressurePlateCallback;
+		m_World.ForEachEntityInBox(cBoundingBox(Vector3d(0.5, 0, 0.5) + a_Position, 0.5, 0.5), PressurePlateCallback);
+
+		switch (a_BlockType)
+		{
+			case E_BLOCK_STONE_PRESSURE_PLATE:
+			{
+				return (PressurePlateCallback.m_FoundPlayer ? 15 : 0);
+			}
+			case E_BLOCK_WOODEN_PRESSURE_PLATE:
+			{
+				return (PressurePlateCallback.m_NumberOfEntities != 0 ? 15 : 0);
+			}
+			case E_BLOCK_HEAVY_WEIGHTED_PRESSURE_PLATE:
+			{
+				return std::min(static_cast<unsigned char>(CeilC(PressurePlateCallback.m_NumberOfEntities / 10.f)), static_cast<unsigned char>(15));
+			}
+			case E_BLOCK_LIGHT_WEIGHTED_PRESSURE_PLATE:
+			{
+				return std::min(static_cast<unsigned char>(PressurePlateCallback.m_NumberOfEntities), static_cast<unsigned char>(15));
+			}
+			default:
+			{
+				ASSERT(!"Unhandled/unimplemented block in pressure plate handler!");
+				return 0;
+			}
+		}
+	}
+
+	virtual cVector3iArray Update(const Vector3i & a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta, PoweringData a_PoweringData) override
+	{
+		UNUSED(a_PoweringData.PowerLevel);
+		// LOGD("Evaluating clicky the pressure plate (%d %d %d)", a_Position.x, a_Position.y, a_Position.z);
+
+		auto Power = GetPowerLevel(a_Position, a_BlockType, a_Meta);
+		auto PreviousPower = static_cast<cIncrementalRedstoneSimulator *>(m_World.GetRedstoneSimulator())->GetChunkData()->ExchangeUpdateOncePowerData(a_Position, PoweringData(a_BlockType, Power));
+
+		if (Power != PreviousPower.PowerLevel)
+		{
+			m_World.SetBlockMeta(a_Position, (Power == 0) ? E_META_PRESSURE_PLATE_RAISED : E_META_PRESSURE_PLATE_DEPRESSED);
+			return GetAdjustedRelatives(a_Position, StaticAppend(GetRelativeLaterals(), cVector3iArray{ OffsetYM() }));
+		}
+
+		return {};
+	}
+
+	virtual cVector3iArray GetValidSourcePositions(const Vector3i & a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta) override
+	{
+		UNUSED(a_Position);
+		UNUSED(a_BlockType);
+		UNUSED(a_Meta);
+		return {};
+	}
+};
-- 
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