Unity和C#-游戏开发-贪吃蛇+源代码工程
2021/8/1 9:35:52
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using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine.UI;
using System;
public class Snake : MonoBehaviour
{
// Current Movement Direction
// (by default it moves to the right)
Vector2 dir = Vector2.right;
List<Transform> tail = new List<Transform>();
// Did the snake eat something?
bool ate = false;
// Tail Prefab
public GameObject tailPrefab;
public Action OnLose;
// Use this for initialization
void Start()
{
// Move the Snake every 300ms
InvokeRepeating("Move", 0.3f, 0.3f);
}
void OnTriggerEnter2D(Collider2D coll)
{
// Food?
if (coll.name.StartsWith("food"))
{
// Get longer in next Move call
ate = true;
// Remove the Food
Destroy(coll.gameObject);
}
// Collided with Tail or Border
else
{
OnLose();
}
}
void Update()
{
// Move in a new Direction?
if (Input.GetKey(KeyCode.RightArrow))
dir = Vector2.right;
else if (Input.GetKey(KeyCode.DownArrow))
dir = -Vector2.up; // '-up' means 'down'
else if (Input.GetKey(KeyCode.LeftArrow))
dir = -Vector2.right; // '-right' means 'left'
else if (Input.GetKey(KeyCode.UpArrow))
dir = Vector2.up;
}
void Move()
{
// Move head into new direction
Vector2 v = transform.position;
transform.Translate(dir);
if (ate)
{
// Load Prefab into the world
GameObject g = (GameObject)Instantiate(tailPrefab,
v,
Quaternion.identity);
// Keep track of it in our tail list
tail.Insert(0, g.transform);
// Reset the flag
ate = false;
}
// Do we have a Tail?
else if (tail.Count > 0)
{
// Move last Tail Element to where the Head was
tail.Last().position = v;
// Add to front of list, remove from the back
tail.Insert(0, tail.Last());
tail.RemoveAt(tail.Count - 1);
}
}
}
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