In this lesson, I will show you how to code and create a vanishing ghost platform. which are platforms that disappear a few seconds after a player object touches it. Ghost platforms are a very popular game mechanic that can be found in almost every platformer.
To create this game mechanic we will use a 3D cube, a transparent material, an animation, and a C# script. The script will use the OnCollisionEnter function to trigger the animation that will fade the platform.
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GhostPlatforms.cs
using System.Collections; using UnityEngine; namespace InfoGamer { //attach this script to any platform you with to blink and disappear public class GhostPlatforms : MonoBehaviour { [SerializeField] string playerTag = "Player"; //set the playerTag to the string that matches the tag of the objects you wish to trigger the platform [SerializeField] float disappearTime = 3; Animator myAnim; [SerializeField] bool canReset; [SerializeField] float resetTime; private void Start() { myAnim = GetComponent<Animator>(); myAnim.SetFloat("DisappearTime", 1/disappearTime); } private void OnCollisionEnter(Collision collision) { if (collision.transform.tag == playerTag) { myAnim.SetBool("Trigger", true); } } public void TriggerReset() { if(canReset) { StartCoroutine(Reset()); } } IEnumerator Reset() { yield return new WaitForSeconds(resetTime); myAnim.SetBool("Trigger", false); } } }
using Photon.Chat; using Photon.Pun; using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.UI; public class PhotonChatManager : MonoBehaviour, IChatClientListener { #region Setup [SerializeField] GameObject joinChatButton; ChatClient chatClient; bool isConnected; [SerializeField] string username; public void UsernameOnValueChange(string valueIn) { username = valueIn; } public void ChatConnectOnClick() { isConnected = true; chatClient = new ChatClient(this); //chatClient.ChatRegion = "US"; chatClient.Connect(PhotonNetwork.PhotonServerSettings.AppSettings.AppIdChat, PhotonNetwork.AppVersion, new AuthenticationValues(username)); Debug.Log("Connenting"); } #endregion Setup #region General [SerializeField] GameObject chatPanel; string privateReceiver = ""; string currentChat; [SerializeField] InputField chatField; [SerializeField] Text chatDisplay; // Start is called before the first frame update void Start() { } // Update is called once per frame void Update() { if (isConnected) { chatClient.Service(); } if (chatField.text != "" && Input.GetKey(KeyCode.Return)) { SubmitPublicChatOnClick(); SubmitPrivateChatOnClick(); } } #endregion General #region PublicChat public void SubmitPublicChatOnClick() { if (privateReceiver == "") { chatClient.PublishMessage("RegionChannel", currentChat); chatField.text = ""; currentChat = ""; } } public void TypeChatOnValueChange(string valueIn) { currentChat = valueIn; } #endregion PublicChat #region PrivateChat public void ReceiverOnValueChange(string valueIn) { privateReceiver = valueIn; } public void SubmitPrivateChatOnClick() { if (privateReceiver != "") { chatClient.SendPrivateMessage(privateReceiver, currentChat); chatField.text = ""; currentChat = ""; } } #endregion PrivateChat #region Callbacks public void DebugReturn(DebugLevel level, string message) { //throw new System.NotImplementedException(); } public void OnChatStateChange(ChatState state) { if(state == ChatState.Uninitialized) { isConnected = false; joinChatButton.SetActive(true); chatPanel.SetActive(false); } } public void OnConnected() { Debug.Log("Connected"); joinChatButton.SetActive(false); chatClient.Subscribe(new string[] { "RegionChannel" }); } public void OnDisconnected() { isConnected = false; joinChatButton.SetActive(true); chatPanel.SetActive(false); } public void OnGetMessages(string channelName, string[] senders, object[] messages) { string msgs = ""; for (int i = 0; i < senders.Length; i++) { msgs = string.Format("{0}: {1}", senders[i], messages[i]); chatDisplay.text += "\n" + msgs; Debug.Log(msgs); } } public void OnPrivateMessage(string sender, object message, string channelName) { string msgs = ""; msgs = string.Format("(Private) {0}: {1}", sender, message); chatDisplay.text += "\n " + msgs; Debug.Log(msgs); } public void OnStatusUpdate(string user, int status, bool gotMessage, object message) { throw new System.NotImplementedException(); } public void OnSubscribed(string[] channels, bool[] results) { chatPanel.SetActive(true); } public void OnUnsubscribed(string[] channels) { throw new System.NotImplementedException(); } public void OnUserSubscribed(string channel, string user) { throw new System.NotImplementedException(); } public void OnUserUnsubscribed(string channel, string user) { throw new System.NotImplementedException(); } #endregion Callbacks }