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featglm5 #74

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153 changes: 124 additions & 29 deletions index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -12,8 +12,16 @@
#menu p a { text-decoration: none; color: black; }
#upcoming { display: block; margin: 0 auto; background-color: #E0E0E0; }
#score { color: red; font-weight: bold; vertical-align: middle; }
#rows { color: blue; font-weight: bold; vertical-align: middle; }
#stats { position: absolute; bottom: 0em; right: 1em; }
#level { color: green; font-weight: bold; font-size: 1.2em; vertical-align: middle; }
#level-progress-container { margin: 0.5em 0; text-align: center; }
#level-progress-bar { width: 80%; height: 12px; background-color: #ddd; border-radius: 6px; margin: 0.3em auto; overflow: hidden; }
#level-progress-fill { height: 100%; background: linear-gradient(90deg, #4CAF50, #8BC34A); border-radius: 6px; transition: width 0.3s ease; }
#level-progress-text { font-size: 0.8em; color: #666; }
#level-up-notification { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); background-color: rgba(0, 0, 0, 0.8); color: #FFD700; padding: 1em 2em; border-radius: 10px; font-size: 1.5em; font-weight: bold; z-index: 1000; display: none; text-align: center; border: 3px solid #FFD700; animation: pulse 0.5s ease-in-out infinite alternate; }
@keyframes pulse { from { transform: translate(-50%, -50%) scale(1); } to { transform: translate(-50%, -50%) scale(1.05); } }
#restart-btn a { background-color: #4CAF50; color: white; padding: 0.5em 1em; border-radius: 5px; text-decoration: none; display: inline-block; }
#restart-btn a:hover { background-color: #45a049; }
@media screen and (min-width: 0px) and (min-height: 0px) { #tetris { font-size: 0.75em; width: 250px; } #menu { width: 100px; height: 200px; } #upcoming { width: 50px; height: 50px; } #canvas { width: 100px; height: 200px; } } /* 10px chunks */
@media screen and (min-width: 400px) and (min-height: 400px) { #tetris { font-size: 1.00em; width: 350px; } #menu { width: 150px; height: 300px; } #upcoming { width: 75px; height: 75px; } #canvas { width: 150px; height: 300px; } } /* 15px chunks */
@media screen and (min-width: 500px) and (min-height: 500px) { #tetris { font-size: 1.25em; width: 450px; } #menu { width: 200px; height: 400px; } #upcoming { width: 100px; height: 100px; } #canvas { width: 200px; height: 400px; } } /* 20px chunks */
Expand All @@ -31,8 +39,16 @@
<p id="start"><a href="javascript:play();">Press Space to Play.</a></p>
<p><canvas id="upcoming"></canvas></p>
<p>score <span id="score">00000</span></p>
<p>rows <span id="rows">0</span></p>
<p>level <span id="level">1</span></p>
<div id="level-progress-container">
<div id="level-progress-bar">
<div id="level-progress-fill" style="width: 0%;"></div>
</div>
<span id="level-progress-text">Next level: 10 rows</span>
</div>
<p id="restart-btn" style="display: none;"><a href="javascript:restartGame();">Restart Game</a></p>
</div>
<div id="level-up-notification"></div>
<canvas id="canvas">
Sorry, this example cannot be run because your browser does not support the &lt;canvas&gt; element
</canvas>
Expand Down Expand Up @@ -75,26 +91,33 @@
ctx = canvas.getContext('2d'),
ucanvas = get('upcoming'),
uctx = ucanvas.getContext('2d'),
speed = { start: 0.6, decrement: 0.005, min: 0.1 }, // how long before piece drops by 1 row (seconds)
nx = 10, // width of tetris court (in blocks)
ny = 20, // height of tetris court (in blocks)
nu = 5; // width/height of upcoming preview (in blocks)
speed = { start: 0.6, decrement: 0.005, min: 0.1 },
nx = 10,
ny = 20,
nu = 5,
LEVEL_UP_ROWS = 10,
MAX_LEVEL = 10,
BASE_FALL_SPEED = 0.8,
SPEED_DECREMENT = 0.08,
MIN_FALL_SPEED = 0.05;

//-------------------------------------------------------------------------
// game variables (initialized during reset)
//-------------------------------------------------------------------------

var dx, dy, // pixel size of a single tetris block
blocks, // 2 dimensional array (nx*ny) representing tetris court - either empty block or occupied by a 'piece'
actions, // queue of user actions (inputs)
playing, // true|false - game is in progress
dt, // time since starting this game
current, // the current piece
next, // the next piece
score, // the current score
vscore, // the currently displayed score (it catches up to score in small chunks - like a spinning slot machine)
rows, // number of completed rows in the current game
step; // how long before current piece drops by 1 row
var dx, dy,
blocks,
actions,
playing,
dt,
current,
next,
score,
vscore,
rows,
step,
level,
totalRowsForLevel;

//-------------------------------------------------------------------------
// tetris pieces
Expand Down Expand Up @@ -235,15 +258,16 @@
// GAME LOGIC
//-------------------------------------------------------------------------

function play() { hide('start'); reset(); playing = true; }
function lose() { show('start'); setVisualScore(); playing = false; }
function play() { hide('start'); hide('restart-btn'); reset(); playing = true; }
function lose() { show('start'); show('restart-btn'); setVisualScore(); playing = false; }
function restartGame() { hide('start'); hide('restart-btn'); reset(); playing = true; }

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 setRows(n) { rows = n; step = calculateFallSpeed(level); }
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(); }
Expand All @@ -252,12 +276,60 @@
function setCurrentPiece(piece) { current = piece || randomPiece(); invalidate(); }
function setNextPiece(piece) { next = piece || randomPiece(); invalidateNext(); }

//-------------------------------------------------------------------------
// LEVEL SYSTEM FUNCTIONS
//-------------------------------------------------------------------------

function calculateFallSpeed(currentLevel) {
var speed = BASE_FALL_SPEED - (currentLevel - 1) * SPEED_DECREMENT;
return Math.max(MIN_FALL_SPEED, speed);
}

function getRowsToNextLevel() {
return LEVEL_UP_ROWS - (totalRowsForLevel % LEVEL_UP_ROWS);
}

function updateLevel(clearedRows) {
var oldLevel = level;
totalRowsForLevel += clearedRows;
var newLevel = Math.min(MAX_LEVEL, Math.floor(totalRowsForLevel / LEVEL_UP_ROWS) + 1);
if (newLevel > oldLevel) {
level = newLevel;
step = calculateFallSpeed(level);
showLevelUpNotification(oldLevel, newLevel);
}
invalidateLevel();
invalidateLevelProgress();
}

function showLevelUpNotification(oldLevel, newLevel) {
var notification = get('level-up-notification');
notification.innerHTML = 'Level Up!<br>Lv' + oldLevel + ' → Lv' + newLevel;
notification.style.display = 'block';
setTimeout(function() {
notification.style.display = 'none';
}, 1500);
}

function setLevel(n) {
level = n;
totalRowsForLevel = (n - 1) * LEVEL_UP_ROWS;
step = calculateFallSpeed(n);
invalidateLevel();
invalidateLevelProgress();
}

function clearLevel() {
setLevel(1);
}

function reset() {
dt = 0;
clearActions();
clearBlocks();
clearRows();
clearScore();
clearLevel();
setCurrentPiece(next);
setNextPiece();
}
Expand Down Expand Up @@ -340,13 +412,14 @@
}
if (complete) {
removeLine(y);
y = y + 1; // recheck same line
y = y + 1;
n++;
}
}
if (n > 0) {
addRows(n);
addScore(100*Math.pow(2,n-1)); // 1: 100, 2: 200, 3: 400, 4: 800
addScore(100*Math.pow(2,n-1));
updateLevel(n);
}
}

Expand All @@ -367,16 +440,18 @@
function invalidate() { invalid.court = true; }
function invalidateNext() { invalid.next = true; }
function invalidateScore() { invalid.score = true; }
function invalidateRows() { invalid.rows = true; }
function invalidateLevel() { invalid.level = true; }
function invalidateLevelProgress() { invalid.levelProgress = true; }

function draw() {
ctx.save();
ctx.lineWidth = 1;
ctx.translate(0.5, 0.5); // for crisp 1px black lines
ctx.translate(0.5, 0.5);
drawCourt();
drawNext();
drawScore();
drawRows();
drawLevel();
drawLevelProgress();
ctx.restore();
}

Expand Down Expand Up @@ -418,10 +493,30 @@
}
}

function drawRows() {
if (invalid.rows) {
html('rows', rows);
invalid.rows = false;
function drawLevel() {
if (invalid.level) {
html('level', level);
invalid.level = false;
}
}

function drawLevelProgress() {
if (invalid.levelProgress) {
var rowsToNext = getRowsToNextLevel();
var progressPercent = ((LEVEL_UP_ROWS - rowsToNext) / LEVEL_UP_ROWS) * 100;
if (level >= MAX_LEVEL) {
progressPercent = 100;
rowsToNext = 0;
}
var progressFill = get('level-progress-fill');
var progressText = get('level-progress-text');
progressFill.style.width = progressPercent + '%';
if (level >= MAX_LEVEL) {
progressText.innerHTML = 'MAX LEVEL!';
} else {
progressText.innerHTML = 'Next level: ' + rowsToNext + ' rows';
}
invalid.levelProgress = false;
}
}

Expand Down