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function test() {
this.init();
for (var i=0; i<10; i++) {
delete this.blocks[10][9];
this.collapse_blocks();
}
this.look_for_holes();
}
test.prototype.init = function() {
this.blocks = new Array(20);
for (var x=0; x<this.blocks.length; x++) {
this.blocks[x] = new Array(10);
for (var y=0; y<this.blocks[x].length; y++) {
this.blocks[x][y] = {};
}
}
}
test.prototype.move_block = function(x,y,x1,y1) {
this.blocks[x][y] = this.blocks[x1][y1];
if (this.blocks[x][y])
delete this.blocks[x1][y1];
}
test.prototype.collapse_blocks = function() {
var didSomething=0;
do {
didSomething=0;
for (var x=0; x<this.blocks.length; x++)
for (var y=1; y<this.blocks[x].length; y++) {
if (!this.blocks[x][y] && this.blocks[x][y-1]) {
this.move_block(x,y,x,y-1);
didSomething=1;
}
}
} while (didSomething);
do {
didSomething = 0;
for (var x=0; x<this.blocks.length-1; x++) {
if (!this.blocks[x][9] && this.blocks[x+1][9]) {
for (var y=0; y<this.blocks[x].length; y++)
this.move_block(x,y,x+1,y);
didSomething = 1;
}
}
} while (didSomething);
}
test.prototype.look_for_holes = function() {
var was_empty = false;
var n_empty = 0;
for (var x=0; x<this.blocks.length; x++) {
var empty = true;
for (var y=0; y<this.blocks[x].length; y++) {
if (this.blocks[x][y]) {
empty = false;
n_empty++;
}
}
if (was_empty)
assertEq(empty, true);
was_empty = empty;
}
assertEq(n_empty, 190);
}
new test();