Try to support MonsterEffect.JUMP

src/cc/co/evenprime/bukkit/nocheat/NoCheatPlayer.java

@@ -25,7 +25,10 @@ public interface NoCheatPlayer {
 
     public float getSpeedAmplifier();
 
+    public float getJumpAmplifier();
+
     public boolean isCreative();
 
     public ExecutionHistory getExecutionHistory();
+
 }

src/cc/co/evenprime/bukkit/nocheat/checks/blockbreak/BlockBreakCheckListener.java

@@ -24,7 +24,7 @@ import cc.co.evenprime.bukkit.nocheat.config.Permissions;
 public class BlockBreakCheckListener implements Listener, EventManager {
 
     private final List<BlockBreakCheck> checks;
-    private final NoCheat plugin;
+    private final NoCheat               plugin;
 
     public BlockBreakCheckListener(NoCheat plugin) {
 
@@ -33,14 +33,15 @@ public class BlockBreakCheckListener implements Listener, EventManager {
         this.checks.add(new NoswingCheck(plugin));
         this.checks.add(new ReachCheck(plugin));
         this.checks.add(new DirectionCheck(plugin));
-        
+
         this.plugin = plugin;
     }
 
     @EventHandler(priority = EventPriority.LOWEST)
     public void blockBreak(final BlockBreakEvent event) {
 
-        if(event.isCancelled()) return;
+        if(event.isCancelled())
+            return;
 
         boolean cancelled = false;
 
@@ -78,8 +79,9 @@ public class BlockBreakCheckListener implements Listener, EventManager {
     @EventHandler(priority = EventPriority.MONITOR)
     public void blockHit(final BlockDamageEvent event) {
 
-        if(event.isCancelled()) return;
+        if(event.isCancelled())
-        
+            return;
+
         NoCheatPlayer player = plugin.getPlayer(event.getPlayer());
         BlockBreakData data = BlockBreakCheck.getData(player.getDataStore());
 

src/cc/co/evenprime/bukkit/nocheat/checks/moving/FlyingCheck.java

@@ -1,7 +1,6 @@
 package cc.co.evenprime.bukkit.nocheat.checks.moving;
 
 import java.util.Locale;
-
 import cc.co.evenprime.bukkit.nocheat.NoCheat;
 import cc.co.evenprime.bukkit.nocheat.NoCheatPlayer;
 import cc.co.evenprime.bukkit.nocheat.actions.ParameterName;
@@ -78,8 +77,19 @@ public class FlyingCheck extends MovingCheck {
 
         resultHoriz *= 100;
 
+        double jumpAmplifier = player.getJumpAmplifier();
+        if(jumpAmplifier > data.lastJumpAmplifier) {
+            data.lastJumpAmplifier = jumpAmplifier;
+        }
+
+        double speedLimitVertical = ccmoving.flyingSpeedLimitVertical * data.lastJumpAmplifier;
+
+        if(data.from.y >= data.to.y && data.lastJumpAmplifier > 0) {
+            data.lastJumpAmplifier--;
+        }
+
         // super simple, just check distance compared to max distance
-        resultVert = Math.max(0.0D, yDistance - data.vertFreedom - ccmoving.flyingSpeedLimitVertical) * 100;
+        resultVert = Math.max(0.0D, yDistance - data.vertFreedom - speedLimitVertical) * 100;
 
         result = resultHoriz + resultVert;
 

src/cc/co/evenprime/bukkit/nocheat/checks/moving/MovingData.java

@@ -32,6 +32,7 @@ public class MovingData implements DataItem {
     public int                   morePacketsFailed;
 
     public int                   jumpPhase;
+    public double                lastJumpAmplifier;
 
     public final PreciseLocation runflySetBackPoint      = new PreciseLocation();
 

src/cc/co/evenprime/bukkit/nocheat/checks/moving/RunningCheck.java

@@ -62,7 +62,7 @@ public class RunningCheck extends MovingCheck {
         PreciseLocation newToLocation = null;
 
         final double resultHoriz = Math.max(0.0D, checkHorizontal(player, data, CheckUtil.isLiquid(fromType) && CheckUtil.isLiquid(toType), horizontalDistance, cc));
-        final double resultVert = Math.max(0.0D, checkVertical(data, fromOnGround, toOnGround, cc));
+        final double resultVert = Math.max(0.0D, checkVertical(player, data, fromOnGround, toOnGround, cc));
 
         final double result = (resultHoriz + resultVert) * 100;
 
@@ -214,21 +214,34 @@ public class RunningCheck extends MovingCheck {
      * Calculate if and how much the player "failed" this check.
      * 
      */
-    private double checkVertical(final MovingData data, final boolean fromOnGround, final boolean toOnGround, final MovingConfig cc) {
+    private double checkVertical(final NoCheatPlayer player, final MovingData data, final boolean fromOnGround, final boolean toOnGround, final MovingConfig cc) {
 
         // How much higher did the player move than expected??
         double distanceAboveLimit = 0.0D;
 
-        double limit = data.vertFreedom + cc.jumpheight;
+        double jumpAmplifier = player.getJumpAmplifier();
+        if(jumpAmplifier > data.lastJumpAmplifier) {
+            data.lastJumpAmplifier = jumpAmplifier;
+        }
 
-        if(data.jumpPhase > jumpingLimit) {
+        double limit = data.vertFreedom + cc.jumpheight;
+        
+        limit *= data.lastJumpAmplifier;
+
+        if(data.jumpPhase > jumpingLimit + data.lastJumpAmplifier) {
             limit -= (data.jumpPhase - jumpingLimit) * 0.15D;
         }
+
         distanceAboveLimit = data.to.y - data.runflySetBackPoint.y - limit;
 
         if(distanceAboveLimit > 0) {
             data.checknamesuffix = "vertical";
         }
+
+        if(toOnGround || fromOnGround) {
+            data.lastJumpAmplifier = 0;
+        }
+
         return distanceAboveLimit;
 
     }

src/cc/co/evenprime/bukkit/nocheat/player/NoCheatPlayerImpl.java

@@ -77,6 +77,22 @@ public class NoCheatPlayerImpl implements NoCheatPlayer {
         }
     }
 
+    @Override
+    public float getJumpAmplifier() {
+        EntityPlayer ep = ((CraftPlayer) player).getHandle();
+        if(ep.hasEffect(MobEffectList.JUMP)) {
+            int amp = ep.getEffect(MobEffectList.JUMP).getAmplifier();
+            // Very rough estimates only
+            if(amp > 20) {
+                return 1.5F * (float) (ep.getEffect(MobEffectList.JUMP).getAmplifier() + 1);
+            } else {
+                return 1.2F * (float) (ep.getEffect(MobEffectList.JUMP).getAmplifier() + 1);
+            }
+        } else {
+            return 1.0F;
+        }
+    }
+
     public boolean isSprinting() {
         return player.isSprinting();
     }