How to Make Video Games 9
In this video I continue creating Tetris! This time I cover how to Move and Rotate Shapes, Except Keyboard Input, Spawn Shapes, Handle Custom Collisions, Debug, Make Shapes Fall, and Move Objects at Different Time Frames.
Like before I create all the code here blind with no previous preparation. All the code follows the video below.
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Code From the Video
Shape.cs
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using System.Collections; using System.Collections.Generic; using UnityEngine; public class Shape : MonoBehaviour { public float speed = 1.0f; float lastMoveDown = 0; // Use this for initialization void Start () { } // Update is called once per frame void Update () { if (Input.GetKeyDown("a")) { transform.position += new Vector3(-1, 0, 0); Debug.Log(transform.position); if (!IsInGrid()) { transform.position += new Vector3(1, 0, 0); } } if (Input.GetKeyDown("d")) { transform.position += new Vector3(1, 0, 0); Debug.Log(transform.position); if (!IsInGrid()) { transform.position += new Vector3(-1, 0, 0); } } if (Input.GetKeyDown("s") || Time.time - lastMoveDown >= 1) { transform.position += new Vector3(0, -1, 0); Debug.Log(transform.position); if (!IsInGrid()) { transform.position += new Vector3(0, 1, 0); } lastMoveDown = Time.time; } if (Input.GetKeyDown("w")) { transform.Rotate(0, 0, 90); Debug.Log(transform.position); if (!IsInGrid()) { transform.Rotate(0, 0, -90); } } } public bool IsInGrid() { int childCount = 0; foreach(Transform childBlock in transform) { Vector2 vect = childBlock.position; childCount++; Debug.Log(childCount + " " + childBlock.position); if (!IsInBorder(vect)) { return false; } } return true; } public static bool IsInBorder(Vector2 pos) { return ((int)pos.x >= -4.73 && (int)pos.x <= 4.31 && (int)pos.y >= -10.45); } } |
ShapeSpawner.cs
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class ShapeSpawner : MonoBehaviour {
public GameObject[] shapes;
public void SpawnShape()
{
int shapeIndex = Random.Range(0, 6);
Instantiate(shapes[shapeIndex],
transform.position,
Quaternion.identity);
}
// Use this for initialization
void Start () {
SpawnShape();
}
// Update is called once per frame
void Update () {
}
}
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