Add InputUpdateEvent (#4356)

src/main/java/net/minecraftforge/client/ForgeHooksClient.java

@@ -81,6 +81,7 @@ import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.BlockRenderLayer;
 import net.minecraft.util.EnumFacing;
 import net.minecraft.util.EnumHand;
+import net.minecraft.util.MovementInput;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.MathHelper;
@@ -94,6 +95,7 @@ import net.minecraftforge.client.event.DrawBlockHighlightEvent;
 import net.minecraftforge.client.event.EntityViewRenderEvent;
 import net.minecraftforge.client.event.FOVUpdateEvent;
 import net.minecraftforge.client.event.GuiScreenEvent;
+import net.minecraftforge.client.event.InputUpdateEvent;
 import net.minecraftforge.client.event.ModelBakeEvent;
 import net.minecraftforge.client.event.MouseEvent;
 import net.minecraftforge.client.event.RenderGameOverlayEvent;
@@ -730,4 +732,9 @@ public class ForgeHooksClient
         if(!tr.equals(TRSRTransformation.identity())) mat = tr.getMatrix();
         return Pair.of(model, mat);
     }
+
+    public static void onInputUpdate(EntityPlayer player, MovementInput movementInput)
+    {
+        MinecraftForge.EVENT_BUS.post(new InputUpdateEvent(player, movementInput));
+    }
 }

src/main/java/net/minecraftforge/client/event/InputUpdateEvent.java

@@ -0,0 +1,26 @@
+package net.minecraftforge.client.event;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.MovementInput;
+import net.minecraftforge.event.entity.player.PlayerEvent;
+
+/**
+ * This event is fired after player movement inputs are updated.<br>
+ * Handlers can freely manipulate {@link MovementInput} to cancel movement.<br>
+ */
+public class InputUpdateEvent extends PlayerEvent
+{
+    private final MovementInput movementInput;
+
+    public InputUpdateEvent(EntityPlayer player, MovementInput movementInput)
+    {
+        super(player);
+        this.movementInput = movementInput;
+    }
+
+    public MovementInput getMovementInput()
+    {
+        return movementInput;
+    }
+
+}