This course will cover how to synchronize players in multiplayer games using Unity, allowing each client to control only their player character. The course will start with the basics of network programming, explain Unity’s networking system, and discuss the client-server architecture. Additionally, we will learn how to manage and synchronize the input of each player.<\/p>\n
Unity provides powerful features that make it easy to develop multiplayer games. To understand the network system, you need to grasp a few basic concepts.<\/p>\n
The client-server architecture is a crucial concept in network games. The client refers to the instance of the game that a player can use, while the server is the central system that manages the state of all clients.<\/p>\n
It is essential to synchronize the states of player characters or objects in the game. That is, the same information must be provided to all clients to achieve smooth gameplay.<\/p>\n
First, you need to install Unity and create a new project. Follow these steps:<\/p>\n
There are various networking libraries available in Unity, but in this course, we will use Unity\u2019s MLAPI<\/strong> (Mid-Level API). Follow the steps below to install MLAPI.<\/p>\n After installing the networking package, you will need to set up the basic network settings. Follow these steps:<\/p>\n Set up the NetworkManager to manage servers and clients. To achieve basic functionality, you need to be aware of the following settings:<\/p>\n You need to set up each player’s character. Since the player character is directly controlled and needs to be synchronized with other clients, it should be created as a prefab.<\/p>\n Now, let\u2019s write a script that will control the player character. Refer to the code below to implement the PlayerController.cs<\/strong> script.<\/p>\n The above script constructs a structure for controlling the player using basic WASD\/arrow key inputs. It checks The next step is to ensure that all player characters communicate with the server and synchronize. We will use SyncVar<\/strong> and Command<\/strong> to synchronize states over the network.<\/p>\n SyncVar is used to synchronize variables over the network and automatically reflects any changes that occur on the server to the clients.<\/p>\n In this course, we learned how to synchronize players in Unity and allow each player to control only their character. By setting up a basic network environment and scripting the players, we established the foundation for multiplayer games in Unity.<\/p>\n In future courses, we will add more features and increase the complexity of the game, covering more advanced topics. If you have any questions or feedback, please leave a comment!<\/p>\n <\/body><\/p>\n","protected":false},"excerpt":{"rendered":"\n
https:\/\/github.com\/Unity-Technologies\/Mirror.git<\/code>, then install it.<\/li>\n<\/ol>\n4. Basic Network Settings<\/h2>\n
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4.1 Configuring the Network Manager<\/h3>\n
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5. Player Settings<\/h2>\n
5.1 Creating a Player Character Prefab<\/h3>\n
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6. Writing the Player Control Script<\/h2>\n
using UnityEngine;\nusing Mirror;\n\npublic class PlayerController : NetworkBehaviour\n{\n public float speed = 5f;\n\n void Update()\n {\n if (!isLocalPlayer)\n return;\n\n float moveHorizontal = Input.GetAxis(\"Horizontal\") * speed * Time.deltaTime;\n float moveVertical = Input.GetAxis(\"Vertical\") * speed * Time.deltaTime;\n\n Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);\n transform.Translate(movement);\n }\n}\n<\/code><\/pre>\n6.1 Script Explanation<\/h3>\n
isLocalPlayer<\/code> to ensure that only the player character of the current client can move.<\/p>\n7. Synchronizing Players Over the Network<\/h2>\n
7.1 Setting Up SyncVar<\/h3>\n
public class PlayerController : NetworkBehaviour\n{\n [SyncVar]\n public Vector3 position;\n\n void Update()\n {\n if (!isLocalPlayer)\n return;\n\n float moveHorizontal = Input.GetAxis(\"Horizontal\") * speed * Time.deltaTime;\n float moveVertical = Input.GetAxis(\"Vertical\") * speed * Time.deltaTime;\n\n Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);\n position += movement; \/\/ Update the local position\n CmdUpdatePosition(position); \/\/ Command to update the server\n }\n\n [Command]\n void CmdUpdatePosition(Vector3 newPosition)\n {\n position = newPosition; \/\/ Update the server's position\n }\n}\n<\/code><\/pre>\n8. Conclusion<\/h2>\n