What would the best method be to make the player increase in size when they touch a "food"-CodePudding

I'm very new to Unity and I'm developing a game were the player gets bigger every time they eat a food pellet.

I've already implemented the food mechanic but the player doesn't become bigger yet. What would be the best way of going about this? I know I might have to increase the scale of the Collison sphere and game object (duh) and I will have to increase the hight of the camera since it is a top down perspective that's very close to the player character. I know this I just don't know how.

I've tried directly setting the scale inside the if statement that controls the eating of the food, no luck.

my if statement if that helps:

private void OnTriggerEnter(Collider collision)
    {
        if (collision.tag == "Food Particle")
        {
            growth  = 1;
            Debug.Log(growth);
            collision.gameObject.SetActive(false);

        }
    }

Help would be appreciated!

CodePudding user response：

If you mean the GameObject should get bigger then you could change the scale. Best would be to make an animation which makes the mesh get bigger. But this isn't a tutorial forum. So limited to 'to get something on screen fast':

Please consider to take those dull tutorials. They only seem not to talk about your goal/game. They actually do.

private float scale_min         = 1.0f;
private float scale_max         = 2.0f;
private float energy_max        = 1.0f;
private float energy_current    = 0.0f;

// grow the game object
private void UpdateScale()
{

    Vector3 scale        = transform.localScale;
    scale.y              = scale_min   (scale_max - scale_min) * energy_current;
    transform.localScale = scale;

}

// a method which consumes the food
// return true when consumed, otherwise false
private bool Feeding(float growth)
{

    if(energy_current <= energy_max)
        return false;

    energy_current  = growth;
    if (energy_current > energy_max)
        energy_current = energy_max;

    return true;

}

private void OnTriggerEnter(Collider collision)
{

    if (collision.tag == "Food Particle")
    {

        // if the food is consumed, remove the food game object
        if(Feeding(0.1f))
        {

            collision.gameObject.SetActive(false);

        }

    }

}

Another script at the 'food' GameObject with a value of energy, or growth, would make the mechanism more generic.

public class Food : MonoBehaviour
{
    public float energy = 0.1f;
}

This will need an adjustment for your OnTriggerEnter.

private void OnTriggerEnter(Collider collision)
{

    // Get the Food component from the food game object
    Food food = collision.GetComponent<Food>();

    // Check if the game object actually has one
    if(food)
    {

        // if the food is consumed, remove the food game object
        if(Feeding(food.energy))
        {

            collision.gameObject.SetActive(false);

        }

    }

}

Rather then setting collision.gameObject inactive, destroying the object seems to be more appropiate.

Destroy(collision.gameObject);

CodePudding user response：

you could simply create a parent game object and put everything inside and basically increase the scale of the parent object which will scale every object under it!