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TetrixShape = {
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NoShape:0,
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ZShape:1,
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SShape:2,
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LineShape:3,
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TShape:4,
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SquareShape:5,
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LShape:6,
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MirroredLShape:7
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}
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TetrixCoordsTable = [
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[ [ 0, 0 ], [ 0, 0 ], [ 0, 0 ], [ 0, 0 ] ],
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[ [ 0, -1 ], [ 0, 0 ], [ -1, 0 ], [ -1, 1 ] ],
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[ [ 0, -1 ], [ 0, 0 ], [ 1, 0 ], [ 1, 1 ] ],
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[ [ 0, -1 ], [ 0, 0 ], [ 0, 1 ], [ 0, 2 ] ],
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[ [ -1, 0 ], [ 0, 0 ], [ 1, 0 ], [ 0, 1 ] ],
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[ [ 0, 0 ], [ 1, 0 ], [ 0, 1 ], [ 1, 1 ] ],
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[ [ -1, -1 ], [ 0, -1 ], [ 0, 0 ], [ 0, 1 ] ],
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[ [ 1, -1 ], [ 0, -1 ], [ 0, 0 ], [ 0, 1 ] ]
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]
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function TetrixPiece()
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{
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this.shape = TetrixShape.NoShape;
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}
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TetrixPiece.prototype.__defineGetter__(
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"shape",
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function() {
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return this._shape;
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}
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);
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TetrixPiece.prototype.__defineSetter__(
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"shape",
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function(shape) {
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this._shape = shape;
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this._coords = new Array(4);
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for (var i = 0; i < 4; ++i)
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this._coords[i] = TetrixCoordsTable[shape][i].slice();
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}
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);
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TetrixPiece.prototype.setRandomShape = function() {
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this.shape = Math.floor(((Math.random() * 100000) % 7) + 1);
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}
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TetrixPiece.prototype.getX = function(index) {
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return this._coords[index][0];
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}
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TetrixPiece.prototype.getY = function(index) {
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return this._coords[index][1];
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}
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TetrixPiece.prototype._setX = function(index, x) {
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this._coords[index][0] = x;
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}
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TetrixPiece.prototype._setY = function(index, y) {
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this._coords[index][1] = y;
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}
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TetrixPiece.prototype.__defineGetter__(
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"minX",
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function() {
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var min = this._coords[0][0];
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for (var i = 1; i < 4; ++i)
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min = Math.min(min, this._coords[i][0]);
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return min;
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}
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);
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TetrixPiece.prototype.__defineGetter__(
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"maxX",
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function() {
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var max = this._coords[0][0];
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for (var i = 1; i < 4; ++i)
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max = Math.max(max, this._coords[i][0]);
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return max;
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}
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);
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TetrixPiece.prototype.__defineGetter__(
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"minY",
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function() {
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var min = this._coords[0][1];
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for (var i = 1; i < 4; ++i)
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min = Math.min(min, this._coords[i][1]);
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return min;
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}
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);
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TetrixPiece.prototype.__defineGetter__(
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"maxY",
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function() {
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var max = this._coords[0][1];
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for (var i = 1; i < 4; ++i)
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max = Math.max(max, this._coords[i][1]);
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return max;
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}
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);
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TetrixPiece.prototype.rotatedLeft = function() {
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var result = new TetrixPiece();
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if (this._shape == TetrixShape.SquareShape) {
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result.shape = this._shape;
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return result;
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}
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result._shape = this._shape;
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for (var i = 0; i < 4; ++i) {
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result._setX(i, this.getY(i));
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result._setY(i, -this.getX(i));
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}
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return result;
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}
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TetrixPiece.prototype.rotatedRight = function() {
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var result = new TetrixPiece();
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if (this._shape == TetrixShape.SquareShape) {
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result.shape = this._shape;
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return result;
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}
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result._shape = this._shape;
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for (var i = 0; i < 4; ++i) {
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result._setX(i, -this.getY(i));
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result._setY(i, this.getX(i));
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}
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return result;
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}
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