Add crafting job toasts (#342)

src/main/java/appeng/helpers/PlayerHelper.java

@@ -0,0 +1,28 @@
+package appeng.helpers;
+
+import appeng.util.Platform;
+import net.minecraft.client.Minecraft;
+import net.minecraft.entity.player.EntityPlayerMP;
+import net.minecraft.server.MinecraftServer;
+import net.minecraftforge.fml.server.FMLServerHandler;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.UUID;
+
+public class PlayerHelper {
+	@Nullable
+	public static EntityPlayerMP getPlayerByUUID(UUID uuid) {
+		final MinecraftServer server;
+		if (Platform.isClientInstall()) {
+			server = Minecraft.getMinecraft().getIntegratedServer();
+		} else {
+			server = FMLServerHandler.instance().getServer();
+		}
+
+		if (server == null) {
+			return null;
+		}
+
+		return server.getPlayerList().getPlayerByUUID(uuid);
+	}
+}