1 files changed, 72 insertions, 0 deletions
diff --git a/EssentialsAntiCheat/src/com/earth2me/essentials/anticheat/checks/inventory/InstantBowCheck.java b/EssentialsAntiCheat/src/com/earth2me/essentials/anticheat/checks/inventory/InstantBowCheck.java
new file mode 100644
index 000000000..7d4fcf3bb
--- /dev/null
+++ b/EssentialsAntiCheat/src/com/earth2me/essentials/anticheat/checks/inventory/InstantBowCheck.java
@@ -0,0 +1,72 @@
+package com.earth2me.essentials.anticheat.checks.inventory;
+
+import com.earth2me.essentials.anticheat.NoCheat;
+import com.earth2me.essentials.anticheat.NoCheatPlayer;
+import com.earth2me.essentials.anticheat.actions.ParameterName;
+import com.earth2me.essentials.anticheat.data.Statistics.Id;
+import java.util.Locale;
+import org.bukkit.event.entity.EntityShootBowEvent;
+
+
+/**
+ * The InstantBowCheck will find out if a player pulled the string of his bow too fast
+ */
+public class InstantBowCheck extends InventoryCheck
+{
+	public InstantBowCheck(NoCheat plugin)
+	{
+		super(plugin, "inventory.instantbow");
+	}
+
+	public boolean check(NoCheatPlayer player, EntityShootBowEvent event, InventoryData data, InventoryConfig cc)
+	{
+
+		boolean cancelled = false;
+
+		long time = System.currentTimeMillis();
+
+		// How fast will the arrow be?
+		float bowForce = event.getForce();
+
+		// Rough estimation of how long pulling the string should've taken
+		long expectedTimeWhenStringDrawn = data.lastBowInteractTime + (int)(bowForce * bowForce * 700F);
+
+		if (expectedTimeWhenStringDrawn < time)
+		{
+			// The player was slow enough, reward him by lowering the vl
+			data.instantBowVL *= 0.90D;
+		}
+		else if (data.lastBowInteractTime > time)
+		{
+			// Security check if time ran backwards, reset
+			data.lastBowInteractTime = 0;
+		}
+		else
+		{
+			// Player was too fast, increase violation level and statistics
+			int vl = ((int)(expectedTimeWhenStringDrawn - time)) / 100;
+			data.instantBowVL += vl;
+			incrementStatistics(player, Id.INV_BOW, vl);
+
+			// Execute whatever actions are associated with this check and the
+			// violation level and find out if we should cancel the event
+			cancelled = executeActions(player, cc.bowActions, data.instantBowVL);
+		}
+
+		return cancelled;
+	}
+
+	@Override
+	public String getParameter(ParameterName wildcard, NoCheatPlayer player)
+	{
+
+		if (wildcard == ParameterName.VIOLATIONS)
+		{
+			return String.format(Locale.US, "%d", getData(player).instantBowVL);
+		}
+		else
+		{
+			return super.getParameter(wildcard, player);
+		}
+	}
+}