Replace tetromino scriptable object with static data

Author: adamgraham

Assets/Scripts/Data.cs

@@ -0,0 +1,54 @@
+using System.Collections.Generic;
+using UnityEngine;
+
+public static class Data
+{
+    public static readonly float cos = Mathf.Cos(Mathf.PI / 2f);
+    public static readonly float sin = Mathf.Sin(Mathf.PI / 2f);
+    public static readonly float[] RotationMatrix = new float[] { cos, sin, -sin, cos };
+
+    public static readonly Dictionary<Tetromino, Vector2Int[]> Cells = new Dictionary<Tetromino, Vector2Int[]>()
+    {
+        { Tetromino.I, new Vector2Int[] { new Vector2Int(-1, 1), new Vector2Int( 0, 1), new Vector2Int( 1, 1), new Vector2Int( 2, 1) } },
+        { Tetromino.J, new Vector2Int[] { new Vector2Int(-1, 1), new Vector2Int(-1, 0), new Vector2Int( 0, 0), new Vector2Int( 1, 0) } },
+        { Tetromino.L, new Vector2Int[] { new Vector2Int( 1, 1), new Vector2Int(-1, 0), new Vector2Int( 0, 0), new Vector2Int( 1, 0) } },
+        { Tetromino.O, new Vector2Int[] { new Vector2Int( 0, 1), new Vector2Int( 1, 1), new Vector2Int( 0, 0), new Vector2Int( 1, 0) } },
+        { Tetromino.S, new Vector2Int[] { new Vector2Int( 0, 1), new Vector2Int( 1, 1), new Vector2Int(-1, 0), new Vector2Int( 0, 0) } },
+        { Tetromino.T, new Vector2Int[] { new Vector2Int( 0, 1), new Vector2Int(-1, 0), new Vector2Int( 0, 0), new Vector2Int( 1, 0) } },
+        { Tetromino.Z, new Vector2Int[] { new Vector2Int(-1, 1), new Vector2Int( 0, 1), new Vector2Int( 0, 0), new Vector2Int( 1, 0) } },
+    };
+
+    private static readonly Vector2Int[,] WallKicksI = new Vector2Int[,] {
+        { new Vector2Int(0, 0), new Vector2Int(-2, 0), new Vector2Int( 1, 0), new Vector2Int(-2,-1), new Vector2Int( 1, 2) },
+        { new Vector2Int(0, 0), new Vector2Int( 2, 0), new Vector2Int(-1, 0), new Vector2Int( 2, 1), new Vector2Int(-1,-2) },
+        { new Vector2Int(0, 0), new Vector2Int(-1, 0), new Vector2Int( 2, 0), new Vector2Int(-1, 2), new Vector2Int( 2,-1) },
+        { new Vector2Int(0, 0), new Vector2Int( 1, 0), new Vector2Int(-2, 0), new Vector2Int( 1,-2), new Vector2Int(-2, 1) },
+        { new Vector2Int(0, 0), new Vector2Int( 2, 0), new Vector2Int(-1, 0), new Vector2Int( 2, 1), new Vector2Int(-1,-2) },
+        { new Vector2Int(0, 0), new Vector2Int(-2, 0), new Vector2Int( 1, 0), new Vector2Int(-2,-1), new Vector2Int( 1, 2) },
+        { new Vector2Int(0, 0), new Vector2Int( 1, 0), new Vector2Int(-2, 0), new Vector2Int( 1,-2), new Vector2Int(-2, 1) },
+        { new Vector2Int(0, 0), new Vector2Int(-1, 0), new Vector2Int( 2, 0), new Vector2Int(-1, 2), new Vector2Int( 2,-1) },
+    };
+
+    private static readonly Vector2Int[,] WallKicksJLOSTZ = new Vector2Int[,] {
+        { new Vector2Int(0, 0), new Vector2Int(-1, 0), new Vector2Int(-1, 1), new Vector2Int(0,-2), new Vector2Int(-1,-2) },
+        { new Vector2Int(0, 0), new Vector2Int( 1, 0), new Vector2Int( 1,-1), new Vector2Int(0, 2), new Vector2Int( 1, 2) },
+        { new Vector2Int(0, 0), new Vector2Int( 1, 0), new Vector2Int( 1,-1), new Vector2Int(0, 2), new Vector2Int( 1, 2) },
+        { new Vector2Int(0, 0), new Vector2Int(-1, 0), new Vector2Int(-1, 1), new Vector2Int(0,-2), new Vector2Int(-1,-2) },
+        { new Vector2Int(0, 0), new Vector2Int( 1, 0), new Vector2Int( 1, 1), new Vector2Int(0,-2), new Vector2Int( 1,-2) },
+        { new Vector2Int(0, 0), new Vector2Int(-1, 0), new Vector2Int(-1,-1), new Vector2Int(0, 2), new Vector2Int(-1, 2) },
+        { new Vector2Int(0, 0), new Vector2Int(-1, 0), new Vector2Int(-1,-1), new Vector2Int(0, 2), new Vector2Int(-1, 2) },
+        { new Vector2Int(0, 0), new Vector2Int( 1, 0), new Vector2Int( 1, 1), new Vector2Int(0,-2), new Vector2Int( 1,-2) },
+    };
+
+    public static readonly Dictionary<Tetromino, Vector2Int[,]> WallKicks = new Dictionary<Tetromino, Vector2Int[,]>()
+    {
+        { Tetromino.I, WallKicksI },
+        { Tetromino.J, WallKicksJLOSTZ },
+        { Tetromino.L, WallKicksJLOSTZ },
+        { Tetromino.O, WallKicksJLOSTZ },
+        { Tetromino.S, WallKicksJLOSTZ },
+        { Tetromino.T, WallKicksJLOSTZ },
+        { Tetromino.Z, WallKicksJLOSTZ },
+    };
+
+}

Assets/Scripts/Data.cs.meta

@@ -1,10 +1,69 @@
 using UnityEngine;
 using UnityEngine.Tilemaps;
 
-[CreateAssetMenu(menuName = "Tetris/Tetromino")]
-public class Tetromino : ScriptableObject
+public enum Tetromino
 {
-    public Tile block;
-    public Vector2Int[] cells = new Vector2Int[4];
+    I, J, L, O, S, T, Z
+}
+
+[System.Serializable]
+public struct TetrominoData
+{
+    public Tile tile;
+    public Tetromino tetromino;
+
+    public Vector2Int[] cells { get; private set; }
+    public Vector2Int[,] wallKicks { get; private set; }
+    public Vector2Int[,] rotations { get; private set; }
+
+    public void Initialize()
+    {
+        this.cells = Data.Cells[this.tetromino];
+        this.wallKicks = Data.WallKicks[this.tetromino];
+
+        PrecomputeRotations();
+    }
+
+    private void PrecomputeRotations()
+    {
+        this.rotations = new Vector2Int[4, 4];
+
+        // Set the initial rotation to the spawn state
+        for (int i = 0; i < this.cells.Length; i++) {
+            this.rotations[0, i] = this.cells[i];
+        }
+
+        // Start at index 1 since we already set the initial rotation
+        for (int i = 1; i < 4; i++)
+        {
+            for (int j = 0; j < this.cells.Length; j++)
+            {
+                // Get the cell data from the previous rotation
+                Vector2 cell = this.rotations[i - 1, j];
+
+                int x, y;
+
+                // Calculate the x,y using a rotation matrix
+                switch (this.tetromino)
+                {
+                    // I, O are rotated from an offset center point
+                    case Tetromino.I:
+                    case Tetromino.O:
+                        cell.x -= 0.5f;
+                        cell.y -= 0.5f;
+                        x = Mathf.CeilToInt((cell.x * Data.RotationMatrix[0]) + (cell.y * Data.RotationMatrix[1]));
+                        y = Mathf.CeilToInt((cell.x * Data.RotationMatrix[2]) + (cell.y * Data.RotationMatrix[3]));
+                        break;
+
+                    default:
+                        x = Mathf.RoundToInt((cell.x * Data.RotationMatrix[0]) + (cell.y * Data.RotationMatrix[1]));
+                        y = Mathf.RoundToInt((cell.x * Data.RotationMatrix[2]) + (cell.y * Data.RotationMatrix[3]));
+                        break;
+                }
+
+                this.rotations[i, j] = new Vector2Int(x, y);
+            }
+        }
+    }
 
 }