SPIGOT-7919: Add API to access current player input

By: md_5 <git@md-5.net>

paper-server/src/main/java/org/bukkit/craftbukkit/CraftInput.java

@@ -0,0 +1,75 @@
+package org.bukkit.craftbukkit;
+
+import java.util.Objects;
+import org.bukkit.Input;
+
+public class CraftInput implements Input {
+
+    private final net.minecraft.world.entity.player.Input handle;
+
+    public CraftInput(net.minecraft.world.entity.player.Input handle) {
+        this.handle = handle;
+    }
+
+    @Override
+    public boolean isForward() {
+        return handle.forward();
+    }
+
+    @Override
+    public boolean isBackward() {
+        return handle.backward();
+    }
+
+    @Override
+    public boolean isLeft() {
+        return handle.left();
+    }
+
+    @Override
+    public boolean isRight() {
+        return handle.right();
+    }
+
+    @Override
+    public boolean isJump() {
+        return handle.jump();
+    }
+
+    @Override
+    public boolean isSneak() {
+        return handle.shift();
+    }
+
+    @Override
+    public boolean isSprint() {
+        return handle.sprint();
+    }
+
+    @Override
+    public int hashCode() {
+        int hash = 7;
+        hash = 89 * hash + Objects.hashCode(this.handle);
+        return hash;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        final CraftInput other = (CraftInput) obj;
+        return Objects.equals(this.handle, other.handle);
+    }
+
+    @Override
+    public String toString() {
+        return "CraftInput{" + handle + '}';
+    }
+}

paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java

@@ -118,6 +118,7 @@ import org.bukkit.Bukkit;
 import org.bukkit.DyeColor;
 import org.bukkit.Effect;
 import org.bukkit.GameMode;
+import org.bukkit.Input;
 import org.bukkit.Instrument;
 import org.bukkit.Location;
 import org.bukkit.Material;
@@ -144,6 +145,7 @@ import org.bukkit.conversations.ConversationAbandonedEvent;
 import org.bukkit.conversations.ManuallyAbandonedConversationCanceller;
 import org.bukkit.craftbukkit.CraftEffect;
 import org.bukkit.craftbukkit.CraftEquipmentSlot;
+import org.bukkit.craftbukkit.CraftInput;
 import org.bukkit.craftbukkit.CraftOfflinePlayer;
 import org.bukkit.craftbukkit.CraftParticle;
 import org.bukkit.craftbukkit.CraftServer;
@@ -1193,6 +1195,11 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         return getHandle().getEnderPearls().stream().map((e) -> (EnderPearl) e.getBukkitEntity()).collect(Collectors.toList());
     }
 
+    @Override
+    public Input getCurrentInput() {
+        return new CraftInput(getHandle().getLastClientInput());
+    }
+
     @Override
     public Location getBedLocation() {
         Preconditions.checkState(isSleeping(), "Not sleeping");