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Better algorithm for randomizing tetromino shapes.

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This commit is contained in:
Kaj Forney 2021-11-01 02:39:09 -06:00
parent 5096e4ab35
commit 1c5a6a462a
Signed by: kforney
GPG key ID: 3AB4E2E04CEF656F
1 changed files with 37 additions and 28 deletions
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65
Assets/Scripts/tetrominoSpawnManager.cs
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@ -1,3 +1,4 @@
using System;
using UnityEngine;
using Random = UnityEngine.Random;
@ -15,38 +16,46 @@ public class tetrominoSpawnManager : MonoBehaviour
private int nextTetromino = 0;
private GameObject nextTetrominoObject;
private GameObject[] nextTetrominoSequence = new GameObject[14];
public void Start()
{
nextTetrominoSequence = new GameObject[14]
{
tetrominoL, tetrominoL,
tetrominoLine, tetrominoLine,
tetrominoR, tetrominoR,
tetrominoS, tetrominoS,
tetrominoSquare, tetrominoSquare,
tetrominoT, tetrominoT,
tetrominoZ, tetrominoZ
};
Shuffle(nextTetrominoSequence);
}
public void spawnTetromino()
{
nextTetromino = Random.Range(1, 7);
switch (nextTetromino)
Instantiate(nextTetrominoSequence[nextTetromino], spawnPoint, Quaternion.identity);
nextTetromino++;
if (nextTetromino == 14)
{
case 0: //Square
nextTetrominoObject = tetrominoSquare;
break;
case 1: //Line
nextTetrominoObject = tetrominoLine;
break;
case 2: //T-piece
nextTetrominoObject = tetrominoT;
break;
case 3: //L-piece
nextTetrominoObject = tetrominoL;
break;
case 4: //R-piece
nextTetrominoObject = tetrominoR;
break;
case 5: //S-piece
nextTetrominoObject = tetrominoS;
break;
case 6: //Z-piece
nextTetrominoObject = tetrominoZ;
break;
default: //if it's not a piece I have a prefab for yet, default to square
nextTetrominoObject = tetrominoSquare;
break;
nextTetromino = 0;
Shuffle(nextTetrominoSequence);
}
Instantiate(nextTetrominoObject, spawnPoint, Quaternion.identity);
}
//an algorithm for shuffling arrays, taken from https://stackoverflow.com/questions/36702548/shuffle-array-in-unity
void Shuffle(GameObject[] array)
{
int p = array.Length;
for (int n = p - 1; n > 0; n--)
{
int r = Random.Range(0, n);
(array[r], array[n]) = (array[n], array[r]);
}
}
}