1 files changed, 131 insertions, 0 deletions
diff --git a/EssentialsAntiCheat/src/com/earth2me/essentials/anticheat/checks/blockplace/DirectionCheck.java b/EssentialsAntiCheat/src/com/earth2me/essentials/anticheat/checks/blockplace/DirectionCheck.java
new file mode 100644
index 000000000..8aa782d19
--- /dev/null
+++ b/EssentialsAntiCheat/src/com/earth2me/essentials/anticheat/checks/blockplace/DirectionCheck.java
@@ -0,0 +1,131 @@
+package com.earth2me.essentials.anticheat.checks.blockplace;
+
+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;
+import java.util.Locale;
+import org.bukkit.Location;
+
+
+/**
+ * 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 BlockPlaceCheck
+{
+	public DirectionCheck(NoCheat plugin)
+	{
+		super(plugin, "blockplace.direction");
+	}
+
+	public boolean check(NoCheatPlayer player, BlockPlaceData data, BlockPlaceConfig cc)
+	{
+
+		boolean cancel = false;
+
+		final SimpleLocation blockPlaced = data.blockPlaced;
+		final SimpleLocation blockPlacedAgainst = data.blockPlacedAgainst;
+
+		// 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, blockPlacedAgainst.x + 0.5D, blockPlacedAgainst.y + 0.5D, blockPlacedAgainst.z + 0.5D, 1D, 1D, cc.directionPrecision);
+
+		// now check if the player is looking at the block from the correct side
+		double off2 = 0.0D;
+
+		// Find out against which face the player tried to build, and if he
+		// stood on the correct side of it
+		Location eyes = player.getPlayer().getEyeLocation();
+		if (blockPlaced.x > blockPlacedAgainst.x)
+		{
+			off2 = blockPlacedAgainst.x + 0.5D - eyes.getX();
+		}
+		else if (blockPlaced.x < blockPlacedAgainst.x)
+		{
+			off2 = -(blockPlacedAgainst.x + 0.5D - eyes.getX());
+		}
+		else if (blockPlaced.y > blockPlacedAgainst.y)
+		{
+			off2 = blockPlacedAgainst.y + 0.5D - eyes.getY();
+		}
+		else if (blockPlaced.y < blockPlacedAgainst.y)
+		{
+			off2 = -(blockPlacedAgainst.y + 0.5D - eyes.getY());
+		}
+		else if (blockPlaced.z > blockPlacedAgainst.z)
+		{
+			off2 = blockPlacedAgainst.z + 0.5D - eyes.getZ();
+		}
+		else if (blockPlaced.z < blockPlacedAgainst.z)
+		{
+			off2 = -(blockPlacedAgainst.z + 0.5D - eyes.getZ());
+		}
+
+		// If he wasn't on the correct side, add that to the "off" value
+		if (off2 > 0.0D)
+		{
+			off += off2;
+		}
+
+		final long time = System.currentTimeMillis();
+
+		if (off < 0.1D)
+		{
+			// Player did nothing wrong
+			// reduce violation counter to reward him
+			data.directionVL *= 0.9D;
+		}
+		else
+		{
+			// Player failed the check
+			// Increment violation counter and statistics
+			data.directionVL += off;
+			incrementStatistics(player, Id.BP_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, cc.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 + cc.directionPenaltyTime > time)
+		{
+			// A safeguard 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);
+		}
+	}
+}