Add initial EntityFakePlayer API

Author: Fox2Code

loader/src/main/java/com/fox2code/foxloader/entity/EntityFakePlayer.java

@@ -0,0 +1,169 @@
+/*
+ * MIT License
+ * 
+ * Copyright (c) 2023-2025 Fox2Code
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.fox2code.foxloader.entity;
+
+import com.fox2code.foxloader.launcher.FoxLauncher;
+import com.mojang.nbt.CompoundTag;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.player.skin.SkinHelper;
+import net.minecraft.client.renderer.particle.EntityFXPickup;
+import net.minecraft.common.entity.Entity;
+import net.minecraft.common.entity.other.EntityItem;
+import net.minecraft.common.entity.player.EntityPlayer;
+import net.minecraft.common.entity.projectile.EntityThrownArrow;
+import net.minecraft.common.networking.Packet18Animation;
+import net.minecraft.common.networking.Packet22Collect;
+import net.minecraft.common.networking.Packet41UpdateFishingRod;
+import net.minecraft.common.world.World;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.entity.EntityTracker;
+
+/**
+ * Fake player to use player specific methods from mods.
+ */
+public abstract class EntityFakePlayer extends EntityPlayer {
+    public int gamemode = 0;
+
+    public EntityFakePlayer(World world) {
+        this(world, null);
+    }
+
+    public EntityFakePlayer(World world, String username) {
+        super(world);
+        this.username = username == null ? "[FakePlayer]" : username;
+    }
+
+    @Override
+    public void updateSkin() {
+        String skinUsername;
+        if (FoxLauncher.isClient() && (skinUsername = this.getSkinUsername()) != null) {
+            String originalUsername = this.username;
+            this.username = skinUsername;
+            SkinHelper.applySkin(this);
+            this.username = originalUsername;
+        }
+    }
+
+    @Override
+    public void readEntityFromNBT(CompoundTag nbt) {
+        super.readEntityFromNBT(nbt);
+        this.gamemode = nbt.getInteger("Gamemode");
+    }
+
+    @Override
+    public void writeEntityToNBT(CompoundTag bt) {
+        super.writeEntityToNBT(bt);
+        bt.setInteger("Gamemode", this.gamemode);
+    }
+
+    @Override
+    public void onItemPickup(Entity entity, int arg2) {
+        if (this.worldObj.isRemote) {
+            // Replicate EntityOtherPlayerMP behaviour
+            super.onItemPickup(entity, arg2);
+            return;
+        }
+
+        if (FoxLauncher.isClient()) {
+            // Replicate EntityPlayerSP behaviour
+            Minecraft mc = Minecraft.getInstance();
+            mc.effectRenderer.addEffect(new EntityFXPickup(mc.theWorld, entity, this, -0.5F));
+            return;
+        }
+
+        // Replicate EntityPlayerMP behaviour
+        if (!entity.isDead) {
+            EntityTracker tracker = MinecraftServer.getInstance().getEntityTracker(this.dimension);
+            if (entity instanceof EntityItem || entity instanceof EntityThrownArrow) {
+                tracker.sendPacketToTrackedPlayers(entity, new Packet22Collect(entity.entityId, this.entityId));
+            }
+        }
+
+        super.onItemPickup(entity, arg2);
+        this.currentContainer.updateInventory();
+    }
+
+    @Override
+    public void swingItem() {
+        this.swingProgressInt = -1;
+        this.isSwinging = true;
+        if (FoxLauncher.isServer()) {
+            MinecraftServer.getInstance().getEntityTracker(this.dimension)
+                    .sendPacketToTrackedPlayers(this, new Packet18Animation(this, 1));
+        }
+    }
+
+    @Override
+    public void func_6420_o() {}
+
+    @Override
+    public boolean teleportToDim(int dimension, double x, double y, double z, float yaw, float pitch) {
+        // Cross dimension teleport not supported.
+        if (this.dimension != dimension) {
+            return false;
+        }
+        this.setPositionAndRotation(x, y, z, yaw, pitch);
+        return true;
+    }
+
+    @Override
+    public boolean changeGamemode(int gamemode) {
+        if (this.worldObj.isRemote) {
+            return super.changeGamemode(gamemode);
+        }
+        if (this.gamemode == gamemode) {
+            return false;
+        }
+        if (gamemode == 0) {
+            this.capabilities.allowFlying = false;
+            this.capabilities.isFlying = false;
+            this.capabilities.isCreativeMode = false;
+            this.capabilities.disableDamage = false;
+        } else {
+            this.capabilities.allowFlying = true;
+            this.capabilities.isCreativeMode = true;
+            this.capabilities.disableDamage = true;
+        }
+        this.gamemode = gamemode;
+        return true;
+    }
+
+    @Override
+    public void updateFishingRod() {
+        super.updateFishingRod();
+        if (FoxLauncher.isServer()) {
+            MinecraftServer.getInstance().configManager.sendPacketToAllPlayers(
+                    new Packet41UpdateFishingRod(this.entityId));
+        }
+    }
+
+    @Override
+    public int getPlayerDataGamemode() {
+        return this.gamemode;
+    }
+
+    public String getSkinUsername() {
+        return null;
+    }
+}