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