From 78f4820876f42f7b50bf88f64afd45bee939e4e4 Mon Sep 17 00:00:00 2001
From: md_5 <md_5@bigpond.com>
Date: Mon, 12 Mar 2012 10:39:36 +1100
Subject: Initial formatted and slightly tweaked version of @evenprime 's
 NoCheat. Will be intergrated into the main Essentials as soon as possible

---
 .../checks/blockbreak/DirectionCheck.java          | 100 +++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 EssentialsAntiCheat/src/com/earth2me/essentials/anticheat/checks/blockbreak/DirectionCheck.java

(limited to 'EssentialsAntiCheat/src/com/earth2me/essentials/anticheat/checks/blockbreak/DirectionCheck.java')

diff --git a/EssentialsAntiCheat/src/com/earth2me/essentials/anticheat/checks/blockbreak/DirectionCheck.java b/EssentialsAntiCheat/src/com/earth2me/essentials/anticheat/checks/blockbreak/DirectionCheck.java
new file mode 100644
index 000000000..d0c7b10f8
--- /dev/null
+++ b/EssentialsAntiCheat/src/com/earth2me/essentials/anticheat/checks/blockbreak/DirectionCheck.java
@@ -0,0 +1,100 @@
+package com.earth2me.essentials.anticheat.checks.blockbreak;
+
+import java.util.Locale;
+import com.earth2me.essentials.anticheat.NoCheat;
+import com.earth2me.essentials.anticheat.NoCheatPlayer;
+import com.earth2me.essentials.anticheat.actions.ParameterName;
+import com.earth2me.essentials.anticheat.checks.CheckUtil;
+import com.earth2me.essentials.anticheat.data.SimpleLocation;
+import com.earth2me.essentials.anticheat.data.Statistics.Id;
+
+
+/**
+ * The DirectionCheck will find out if a player tried to interact with something that's not in his field of view.
+ *
+ */
+public class DirectionCheck extends BlockBreakCheck
+{
+	public DirectionCheck(NoCheat plugin)
+	{
+		super(plugin, "blockbreak.direction");
+	}
+
+	public boolean check(final NoCheatPlayer player, final BlockBreakData data, final BlockBreakConfig ccblockbreak)
+	{
+
+		final SimpleLocation brokenBlock = data.brokenBlockLocation;
+		boolean cancel = false;
+
+		// How far "off" is the player with his aim. We calculate from the
+		// players eye location and view direction to the center of the target
+		// block. If the line of sight is more too far off, "off" will be
+		// bigger than 0
+		double off = CheckUtil.directionCheck(player, brokenBlock.x + 0.5D, brokenBlock.y + 0.5D, brokenBlock.z + 0.5D, 1D, 1D, ccblockbreak.directionPrecision);
+
+		final long time = System.currentTimeMillis();
+
+		if (off < 0.1D)
+		{
+			// Player did likely nothing wrong
+			// reduce violation counter to reward him
+			data.directionVL *= 0.9D;
+		}
+		else
+		{
+			// Player failed the check
+			// Increment violation counter
+			if (data.instaBrokenBlockLocation.equals(brokenBlock))
+			{
+				// Instabreak block failures are very common, so don't be as
+				// hard on people failing them
+				off /= 5;
+			}
+
+			// Add to the overall violation level of the check and add to
+			// statistics
+			data.directionVL += off;
+			incrementStatistics(player, Id.BB_DIRECTION, off);
+
+			// Execute whatever actions are associated with this check and the
+			// violation level and find out if we should cancel the event
+			cancel = executeActions(player, ccblockbreak.directionActions, data.directionVL);
+
+			if (cancel)
+			{
+				// if we should cancel, remember the current time too
+				data.directionLastViolationTime = time;
+			}
+		}
+
+		// If the player is still in penalty time, cancel the event anyway
+		if (data.directionLastViolationTime + ccblockbreak.directionPenaltyTime > time)
+		{
+			// A saveguard to avoid people getting stuck in penalty time
+			// indefinitely in case the system time of the server gets changed
+			if (data.directionLastViolationTime > time)
+			{
+				data.directionLastViolationTime = 0;
+			}
+
+			// He is in penalty time, therefore request cancelling of the event
+			return true;
+		}
+
+		return cancel;
+	}
+
+	@Override
+	public String getParameter(ParameterName wildcard, NoCheatPlayer player)
+	{
+
+		if (wildcard == ParameterName.VIOLATIONS)
+		{
+			return String.format(Locale.US, "%d", (int)getData(player).directionVL);
+		}
+		else
+		{
+			return super.getParameter(wildcard, player);
+		}
+	}
+}
-- 
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