PlayerUtils.java

package net.geforcemods.securitycraft.util;

import java.util.Iterator;
import java.util.List;

import net.geforcemods.securitycraft.entity.EntitySecurityCamera;
import net.minecraft.client.Minecraft;
import net.minecraft.command.ICommandSender;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.server.MinecraftServer;
import net.minecraft.util.ChatComponentText;
import net.minecraft.util.EnumChatFormatting;
import net.minecraftforge.common.ForgeHooks;
import net.minecraftforge.fml.common.FMLCommonHandler;
import net.minecraftforge.fml.relauncher.Side;

public class PlayerUtils{
	
	/**
	 * Gets the EntityPlayer instance of a player (if they're online) using their name. <p>
	 * 
	 * Args: playerName.
	 */
	public static EntityPlayer getPlayerFromName(String par1){
		if(FMLCommonHandler.instance().getEffectiveSide() == Side.CLIENT){
			List<?> players = Minecraft.getMinecraft().theWorld.playerEntities;
	    	Iterator<?> iterator = players.iterator();
	    	
	    	while(iterator.hasNext()){
	    		EntityPlayer tempPlayer = (EntityPlayer) iterator.next();
	    		if(tempPlayer.getCommandSenderName().matches(par1)){
	    			return tempPlayer;
	    		}
	    	}
	    	
	    	return null;
		}else{
			List<?> players = MinecraftServer.getServer().getConfigurationManager().playerEntityList;
	    	Iterator<?> iterator = players.iterator();
	    	
	    	while(iterator.hasNext()){
	    		EntityPlayer tempPlayer = (EntityPlayer) iterator.next();
	    		if(tempPlayer.getCommandSenderName().matches(par1)){
	    			return tempPlayer;
	    		}
	    	}
	    	
	    	return null;
		}
    }
	
	public static EntityPlayer getPlayerByUUID(String uuid){
		if(FMLCommonHandler.instance().getEffectiveSide() == Side.CLIENT){
			List<?> players = Minecraft.getMinecraft().theWorld.playerEntities;
	    	Iterator<?> iterator = players.iterator();
	    	
	    	while(iterator.hasNext()){
	    		EntityPlayer tempPlayer = (EntityPlayer) iterator.next();
	    		if(tempPlayer.getGameProfile().getId().toString().matches(uuid)){
	    			return tempPlayer;
	    		}
	    	}
	    	
	    	return null;
		}else{
			List<?> players = MinecraftServer.getServer().getConfigurationManager().playerEntityList;
	    	Iterator<?> iterator = players.iterator();
	    	
	    	while(iterator.hasNext()){
	    		EntityPlayer tempPlayer = (EntityPlayer) iterator.next();
	    		if(tempPlayer.getGameProfile().getId().toString().matches(uuid)){
	    			return tempPlayer;
	    		}
	    	}
	    	
	    	return null;
		}
	}
	
	/**
	 * Returns true if a player with the given name is in the world.
	 * 
	 * Args: playerName.
	 */
	public static boolean isPlayerOnline(String par1) {
		if(FMLCommonHandler.instance().getEffectiveSide() == Side.CLIENT){
			for(int i = 0; i < Minecraft.getMinecraft().theWorld.playerEntities.size(); i++){
	    		EntityPlayer player = Minecraft.getMinecraft().theWorld.playerEntities.get(i);
	    		
	    		if(player != null && player.getCommandSenderName().matches(par1)){
	    			return true;
	    		}
	    	}
			
			return false;
		}else{
			return (MinecraftServer.getServer().getConfigurationManager().getPlayerByUsername(par1) != null);  	
		}
    }
	
	public static void sendMessageToPlayer(EntityPlayer player, String prefix, String text, EnumChatFormatting color){
		player.addChatComponentMessage(new ChatComponentText("[" + color + prefix + EnumChatFormatting.WHITE + "] " + text));
	}
	
	public static void sendMessageToPlayer(ICommandSender sender, String prefix, String text, EnumChatFormatting color){
		sender.addChatMessage(new ChatComponentText("[" + color + prefix + EnumChatFormatting.WHITE + "] " + text));
	}
	
	/**
	 * Sends the given {@link ICommandSender} a chat message, followed by a link prefixed with a colon. <p>
	 * 
	 * Args: sender, prefix, text, link, color.
	 */
	public static void sendMessageEndingWithLink(ICommandSender sender, String prefix, String text, String link, EnumChatFormatting color){
		sender.addChatMessage(new ChatComponentText("[" + color + prefix + EnumChatFormatting.WHITE + "] " + text + ": ").appendSibling(ForgeHooks.newChatWithLinks(link)));
	}

	/**
	 * Returns true if the player is holding the given item.
	 * 
	 * Args: player, item.
	 */
	public static boolean isHoldingItem(EntityPlayer player, Item item){
		if(item == null && player.getCurrentEquippedItem() == null){
			return true;
		}
		
		return (player.getCurrentEquippedItem() != null && player.getCurrentEquippedItem().getItem() == item);
	}
	
	/**
	 * Is the entity mounted on to a security camera?
	 * 
	 * Args: entity.
	 */
	public static boolean isPlayerMountedOnCamera(EntityLivingBase entity) {
		return entity.ridingEntity != null && entity.ridingEntity instanceof EntitySecurityCamera;
	}
}