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Unity2D

Movement Scipt


// Update is called once per frame
void Update(){
    float moveSpeed = 10;
    float horizontalInput = Input.GetAxis("Horizontal");
    float verticalInput = Input.GetAxis("Vertical");
    transform.Translate(new Vector3(horizontalInput, verticalInput, 0 ) * moveSpeed * Time.deltaTime);
}

Collision Detection

Objects must have collider component. Objects must have rigidbody for enabling physics engine controls. Refer RigidBody2D Manual.

OnCollisionEnter2D(Collider2D other){
    if (other.gameObject.CompareTag("tag")){
    Debug.Log("HIT tag");     
    }
}

Basic Perlin Noise

Perlin Noise

public static float[,] GenerateNoiseMap(
        int mapWidth, 
        int mapHeight, 
        float scale){    
    float[,] noiseMap = new float[mapWidth,mapHeight];
    if ( scale <= 0 ){ scale = 0.001F; }
    for (int y = 0 ; y < mapHeight ; y++){
        for (int x = 0 ; x < mapWidth ; x++){
            float sampleX = x/scale;
            float sampleY = y/scale;
            float perlinValue = Mathf.PerlinNoise(sampleX,sampleY);
            noiseMap[x,y] = perlinValue;
        }
    }
    return noiseMap;
}


Better Perlin Noise : Octaves


Time

Time.deltaTime : The completion time in seconds since the last frame (Read Only).This property provides the time between the current and previous frame.

Last Updated: 24 Sept 2020