Learn > NPA Computer Games Development > Development > 2D Platformer > Coding the Character

Coding the Character

With the character setup, it is now time to code it.

This tutorial will look at coding the character to achieve the following:

  • Left and Right Movement of a character.
  • A jumping mechanic
  • An internal cooldown to stop “jump spam”
  • Compatibility for both Keyboard and Controllers

Example Code

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Movement : MonoBehaviour
{
    public float moveSpeed = 5f;
    public float jumpForce = 10f;
    public float jumpDelay;

    private Rigidbody2D rb;
    bool canJump;

    private void Start()
    {
        rb = GetComponent<Rigidbody2D>();
        canJump = true;
    }

    private void Update()
    {
        // Handle player input
        float horizontalInput = Input.GetAxis("Horizontal");
        HandleMovement(horizontalInput);

        if (Input.GetButtonDown("Jump") && canJump)
        {
            StartCoroutine(Jump());
        }
    }

    private void HandleMovement(float horizontalInput)
    {
        // Move the player horizontally
        Vector2 movement = new Vector2(horizontalInput * moveSpeed, rb.velocity.y);
        rb.velocity = movement;
    }

    IEnumerator Jump()
    {
        canJump = false;
        // Make the player jump if grounded
        rb.velocity = new Vector2(rb.velocity.x, jumpForce);

        yield return new WaitForSeconds(jumpDelay);

        canJump = true;
    }
}

Target

You should be able to code a character for use in a 2D Platformer.

Button TextButton Text