+
+
+
+
+
+
+
+
- showStats();
- addEvents();
+
- var last = now = timestamp();
- function frame() {
- now = timestamp();
- update(Math.min(1, (now - last) / 1000.0));
- draw();
- stats.update();
- last = now;
- requestAnimationFrame(frame, canvas);
- }
+
+
+
+
+ Controls:
+
+
- resize();
- reset();
- frame();
-
- }
-
- function showStats() {
- stats.domElement.id = 'stats';
- get('menu').appendChild(stats.domElement);
- }
-
- function addEvents() {
- document.addEventListener('keydown', keydown, false);
- window.addEventListener('resize', resize, false);
- }
-
- function resize(event) {
- canvas.width = canvas.clientWidth;
- canvas.height = canvas.clientHeight;
- ucanvas.width = ucanvas.clientWidth;
- ucanvas.height = ucanvas.clientHeight;
- dx = canvas.width / nx;
- dy = canvas.height / ny;
- invalidate();
- invalidateNext();
- }
-
- function keydown(ev) {
- var handled = false;
- if (playing) {
- switch(ev.keyCode) {
- case KEY.LEFT: actions.push(DIR.LEFT); handled = true; break;
- case KEY.RIGHT: actions.push(DIR.RIGHT); handled = true; break;
- case KEY.UP: actions.push(DIR.UP); handled = true; break;
- case KEY.DOWN: actions.push(DIR.DOWN); handled = true; break;
- case KEY.ESC: lose(); handled = true; break;
- }
- }
- else if (ev.keyCode == KEY.SPACE) {
- play();
- handled = true;
- }
- if (handled)
- ev.preventDefault();
- }
- function play() { hide('start'); reset(); playing = true; }
- function lose() { show('start'); setVisualScore(); playing = false; }
-
- function setVisualScore(n) { vscore = n || score; invalidateScore(); }
- function setScore(n) { score = n; setVisualScore(n); }
- function addScore(n) { score = score + n; }
- function clearScore() { setScore(0); }
- function clearRows() { setRows(0); }
- function setRows(n) { rows = n; step = Math.max(speed.min, speed.start - (speed.decrement*rows)); invalidateRows(); }
- function addRows(n) { setRows(rows + n); }
- function getBlock(x,y) { return (blocks && blocks[x] ? blocks[x][y] : null); }
- function setBlock(x,y,type) { blocks[x] = blocks[x] || []; blocks[x][y] = type; invalidate(); }
- function clearBlocks() { blocks = []; invalidate(); }
- function clearActions() { actions = []; }
- function setCurrentPiece(piece) { current = piece || randomPiece(); invalidate(); }
- function setNextPiece(piece) { next = piece || randomPiece(); invalidateNext(); }
-
- function reset() {
- dt = 0;
- clearActions();
- clearBlocks();
- clearRows();
- clearScore();
- setCurrentPiece(next);
- setNextPiece();
- }
-
- function update(idt) {
- if (playing) {
- if (vscore < score)
- setVisualScore(vscore + 1);
- handle(actions.shift());
- dt = dt + idt;
- if (dt > step) {
- dt = dt - step;
- drop();
- }
- }
- }
-
- function handle(action) {
- switch(action) {
- case DIR.LEFT: move(DIR.LEFT); break;
- case DIR.RIGHT: move(DIR.RIGHT); break;
- case DIR.UP: rotate(); break;
- case DIR.DOWN: drop(); break;
- }
- }
-
- function move(dir) {
- var x = current.x, y = current.y;
- switch(dir) {
- case DIR.RIGHT: x = x + 1; break;
- case DIR.LEFT: x = x - 1; break;
- case DIR.DOWN: y = y + 1; break;
- }
- if (unoccupied(current.type, x, y, current.dir)) {
- current.x = x;
- current.y = y;
- invalidate();
- return true;
- }
- else {
- return false;
- }
- }
-
- function rotate() {
- var newdir = (current.dir == DIR.MAX ? DIR.MIN : current.dir + 1);
- if (unoccupied(current.type, current.x, current.y, newdir)) {
- current.dir = newdir;
- invalidate();
- }
- }
-
- function drop() {
- if (!move(DIR.DOWN)) {
- addScore(10);
- dropPiece();
- removeLines();
- setCurrentPiece(next);
- setNextPiece(randomPiece());
- clearActions();
- if (occupied(current.type, current.x, current.y, current.dir)) {
- lose();
- }
- }
- }
-
- function dropPiece() {
- eachblock(current.type, current.x, current.y, current.dir, function(x, y) {
- setBlock(x, y, current.type);
- });
- }
-
- function removeLines() {
- var x, y, complete, n = 0;
- for(y = ny ; y > 0 ; --y) {
- complete = true;
- for(x = 0 ; x < nx ; ++x) {
- if (!getBlock(x, y))
- complete = false;
- }
- if (complete) {
- removeLine(y);
- y = y + 1;
- n++;
- }
- }
- if (n > 0) {
- addRows(n);
- addScore(100*Math.pow(2,n-1));
- }
- }
-
- function removeLine(n) {
- var x, y;
- for(y = n ; y >= 0 ; --y) {
- for(x = 0 ; x < nx ; ++x)
- setBlock(x, y, (y == 0) ? null : getBlock(x, y-1));
- }
- }
- var invalid = {};
-
- function invalidate() { invalid.court = true; }
- function invalidateNext() { invalid.next = true; }
- function invalidateScore() { invalid.score = true; }
- function invalidateRows() { invalid.rows = true; }
-
- function draw() {
- ctx.save();
- ctx.lineWidth = 1;
- ctx.translate(0.5, 0.5);
- drawCourt();
- drawNext();
- drawScore();
- drawRows();
- ctx.restore();
- }
-
- function drawCourt() {
- if (invalid.court) {
- ctx.clearRect(0, 0, canvas.width, canvas.height);
- if (playing)
- drawPiece(ctx, current.type, current.x, current.y, current.dir);
- var x, y, block;
- for(y = 0 ; y < ny ; y++) {
- for (x = 0 ; x < nx ; x++) {
- if (block = getBlock(x,y))
- drawBlock(ctx, x, y, block.color);
- }
- }
- ctx.strokeRect(0, 0, nx*dx - 1, ny*dy - 1);
- invalid.court = false;
- }
- }
-
- function drawNext() {
- if (invalid.next) {
- var padding = (nu - next.type.size) / 2;
- uctx.save();
- uctx.translate(0.5, 0.5);
- uctx.clearRect(0, 0, nu*dx, nu*dy);
- drawPiece(uctx, next.type, padding, padding, next.dir);
- uctx.strokeStyle = 'black';
- uctx.strokeRect(0, 0, nu*dx - 1, nu*dy - 1);
- uctx.restore();
- invalid.next = false;
- }
- }
-
- function drawScore() {
- if (invalid.score) {
- html('score', ("00000" + Math.floor(vscore)).slice(-5));
- invalid.score = false;
- }
- }
-
- function drawRows() {
- if (invalid.rows) {
- html('rows', rows);
- invalid.rows = false;
- }
- }
-
- function drawPiece(ctx, type, x, y, dir) {
- eachblock(type, x, y, dir, function(x, y) {
- drawBlock(ctx, x, y, type.color);
- });
- }
-
- function drawBlock(ctx, x, y, color) {
- ctx.fillStyle = color;
- ctx.fillRect(x*dx, y*dy, dx, dy);
- ctx.strokeRect(x*dx, y*dy, dx, dy)
- }
- run();
-
-
-
\ No newline at end of file
+
+ | Left, Right |
+ Down |
+ Z, X, Up |
+ C, Shift |
+ Space |
+ Esc |
+
+
+
+
+
+
+
+ |
+
+ 
+