Last Updated: November 21, 2025
C# Basics for Unity
using UnityEngine;
public class PlayerController : MonoBehaviour {
public float speed = 10f;
void Start() {
// Called once at start
}
void Update() {
// Called every frame
float move = Input.GetAxis("Horizontal");
transform.Translate(Vector3.right * move * speed * Time.deltaTime);
}
}Common Components
Transform
Position, rotation, scale
Rigidbody
Physics simulation
Collider
Collision detection
Animator
Animation control
AudioSource
Play sounds
Camera
Render view
Input
Input.GetKey
Key held down
Input.GetKeyDown
Key pressed
Input.GetMouseButton
Mouse button
Input.GetAxis
Smooth input (-1 to 1)
💡 Pro Tip:
Use Time.deltaTime to make movement frame-rate independent!