123 lines
3.7 KiB
C#
123 lines
3.7 KiB
C#
using UnityEngine;
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using UnityEngine.SceneManagement;
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public class tetrominoUserControl : MonoBehaviour
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{
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public GameObject activeTetromino;
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// Update is called once per frame
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void Update()
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{
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if (Input.GetButtonDown("tetrisMoveLeft") && activeTetromino != null)
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{
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if (!checkMoveCollisions(Vector2.left))
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{
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activeTetromino.gameObject.transform.position += Vector3.left * 1.0f;
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GetComponent<AudioSource>().Play();
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}
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}
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if (Input.GetButtonDown("tetrisMoveRight") && activeTetromino != null)
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{
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if (!checkMoveCollisions(Vector2.right))
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{
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activeTetromino.gameObject.transform.position += Vector3.right * 1.0f;
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GetComponent<AudioSource>().Play();
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}
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}
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if (Input.GetButtonDown("tetrisDrop") && activeTetromino != null)
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{
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if (!checkMoveCollisions(Vector2.down))
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{
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activeTetromino.gameObject.transform.position += Vector3.down * 1.0f;
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GetComponent<AudioSource>().Play();
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}
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}
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if (Input.GetButtonDown("tetrisRotateLeft") && activeTetromino != null)
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{
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checkRotateCollisions(90);
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GetComponent<AudioSource>().Play();
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}
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if (Input.GetButtonDown("tetrisRotateRight") && activeTetromino != null)
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{
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checkRotateCollisions(90);
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GetComponent<AudioSource>().Play();
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}
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if (Input.GetButtonDown("Quit"))
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{
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SceneManager.LoadScene("titleScreen");
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}
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}
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public void setActiveTetromino(GameObject tetromino)
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{
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activeTetromino = tetromino;
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}
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public void unsetActiveTetromino()
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{
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activeTetromino = null;
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}
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public bool checkMoveCollisions(Vector2 direction)
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{
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bool wouldCollide = false;
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foreach (Transform child in activeTetromino.transform)
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{
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RaycastHit2D collision = Physics2D.Raycast(child.position, direction, 1.0f);
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if (collision.collider != null && collision.collider.transform.parent != child.parent)
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{
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wouldCollide = true;
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}
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}
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if (wouldCollide == true)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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public void checkRotateCollisions(int degrees)
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{
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bool wouldCollide = false;
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Collider2D[] results = new Collider2D[10];
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//Perform the rotation (will undo later if there's a collision).
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activeTetromino.gameObject.transform.Rotate(0,0,degrees,Space.World);
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foreach (Transform child in activeTetromino.transform)
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{
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//Store any overlapping colliders in the results array.
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child.GetComponent<BoxCollider2D>().OverlapCollider(new ContactFilter2D().NoFilter(), results);
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//If there are collisions...
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foreach (Collider2D a in results)
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{
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//and IF they aren't an extra null item in the array...
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if (a != null)
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{
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//Only act if the overlap is not with another part of this tetromino.
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if (a.gameObject.transform.parent != child.parent)
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{
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Debug.Log("Collision detected with " + a.gameObject.name);
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wouldCollide = true;
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}
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}
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}
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}
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//If we collided, undo the rotation.
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if (wouldCollide == true)
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{
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activeTetromino.gameObject.transform.Rotate(0,0,degrees * -1,Space.World);
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}
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}
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}
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