SamsonGame/Assets/Sources/Feel/FeelDemos/Snake/Scripts/SnakeFoodSpawner.cs

55 lines
1.8 KiB
C#

using System.Collections;
using System.Collections.Generic;
using MoreMountains.Tools;
using UnityEngine;
using UnityEngine.SceneManagement;
namespace MoreMountains.Feel
{
/// <summary>
/// A simple class used to spawn snake food in Feel's Snake demo scene
/// </summary>
public class SnakeFoodSpawner : MonoBehaviour
{
/// the food prefab to spawn
public SnakeFood SnakeFoodPrefab;
/// the maximum amount of food in the scene
public int AmountOfFood = 3;
/// the minimum coordinates to spawn at (in viewport units)
public Vector2 MinRandom = new Vector2(0.1f, 0.1f);
/// the maximum coordinates to spawn at (in viewport units)
public Vector2 MaxRandom = new Vector2(0.9f, 0.9f);
protected List<SnakeFood> Foods;
protected Camera _mainCamera;
/// <summary>
/// On start, instantiates food
/// </summary>
protected virtual void Start()
{
_mainCamera = Camera.main;
Foods = new List<SnakeFood>();
for (int i = 0; i < AmountOfFood; i++)
{
SnakeFood food = Instantiate(SnakeFoodPrefab);
food.transform.position = DetermineSpawnPosition();
food.Spawner = this;
Foods.Add(food);
}
}
/// <summary>
/// Determines a valid position at which to spawn food
/// </summary>
/// <returns></returns>
public virtual Vector3 DetermineSpawnPosition()
{
Vector3 newPosition = MMMaths.RandomVector2(MinRandom, MaxRandom);
newPosition.z = 10f;
newPosition = _mainCamera.ViewportToWorldPoint(newPosition);
return newPosition;
}
}
}