added shield

Transcendence/srcs/backend/services/socket.js

@@ -730,6 +730,16 @@ function setupSocketIO(io)
 			_tetrisRelayToOpponent(socket, 'tetris:lines-cleared', data);
 		});
 
+		// Relay pur : shield-activated → adversaire uniquement
+		socket.on('tetris:shield-activated', () => {
+			_tetrisRelayToOpponent(socket, 'tetris:shield-activated', {});
+		});
+
+		// Relay pur : shield-deactivated → adversaire uniquement
+		socket.on('tetris:shield-deactivated', () => {
+			_tetrisRelayToOpponent(socket, 'tetris:shield-deactivated', {});
+		});
+
 		// start-duel → relayé aux DEUX joueurs de la room (inclut l'émetteur)
 		socket.on('tetris:start-duel', () => {
 			const code = socket.tetrisRoomCode;

Transcendence/srcs/frontend/src/duel.js

@@ -12,6 +12,7 @@ class Duel {
         this.action_queue        = [];
         this.opponentGrid        = this._emptyGrid();
         this.opponentScore       = 0;
+        this.opponentShieldActive = false;
         this.roomCode            = null;
         this.isReady             = false;
 
@@ -60,6 +61,15 @@ class Duel {
         this.endDuel();
     }
 
+    onLocalShieldChanged(event) {
+        if (!this.isReady) return;
+        if (event === 'activated') {
+            this.socket.emit('tetris:shield-activated');
+        } else if (event === 'deactivated') {
+            this.socket.emit('tetris:shield-deactivated');
+        }
+    }
+
     endDuel() {
         this.isReady      = false;
         this.action_queue = [];
@@ -92,6 +102,14 @@ class Duel {
                 showOverlay('YOU WIN', action.score);
                 this.endDuel();
                 break;
+
+            case 'OPPONENT_SHIELD_ACTIVATED':
+                this.opponentShieldActive = true;
+                break;
+
+            case 'OPPONENT_SHIELD_DEACTIVATED':
+                this.opponentShieldActive = false;
+                break;
         }
     }
 
@@ -127,6 +145,14 @@ class Duel {
             this.action_queue.push({ type: 'OPPONENT_GAME_OVER', score: data.score, validBlock: data.validBlock });
         });
 
+        this.socket.on('tetris:shield-activated', () => {
+            this.action_queue.push({ type: 'OPPONENT_SHIELD_ACTIVATED' });
+        });
+
+        this.socket.on('tetris:shield-deactivated', () => {
+            this.action_queue.push({ type: 'OPPONENT_SHIELD_DEACTIVATED' });
+        });
+
         this.socket.on('tetris:start-duel', () => {
             if (this.onStart) this.onStart();
         });

Transcendence/srcs/frontend/src/renderer.js

@@ -139,6 +139,17 @@ function drawMiniPiece(ctx, piece, canvasW, canvasH) {
                 drawCell(ctx, offsetX + col, offsetY + row, color, s);
 }
 
+function _drawShieldOverlay(ctx, w, h, alpha) {
+    ctx.save();
+    ctx.strokeStyle = `rgba(0,212,255,${alpha})`;
+    ctx.lineWidth   = 4;
+    ctx.shadowColor = '#00d4ff';
+    ctx.shadowBlur  = 16;
+    ctx.strokeRect(2, 2, w - 4, h - 4);
+    ctx.shadowBlur  = 0;
+    ctx.restore();
+}
+
 function render() {
     // Grille principale
     clearCanvas(ctxMain, 300, 600);
@@ -161,12 +172,39 @@ function render() {
                     drawCell(ctxMain, x + col, y + row, color, CELL);
     }
 
+    // Shield overlay (bordure cyan pulsée)
+    if (game.shieldActive) {
+        const pulse = 0.6 + 0.4 * Math.sin(Date.now() / 150);
+        _drawShieldOverlay(ctxMain, 300, 600, pulse);
+    }
+
     // Panneaux miniatures
     drawMiniPiece(ctxNext, game.nextPiece,   100, 80);
     drawMiniPiece(ctxHold, game.storedPiece, 100, 80);
 
     // Score
     document.getElementById('score-display').textContent = game.score;
+
+    // Shield status UI
+    const shieldEl  = document.getElementById('shield-status-display');
+    const shieldBar = document.getElementById('shield-bar');
+    if (shieldEl) {
+        if (game.shieldActive) {
+            const secs = Math.ceil(game.shieldActiveMs / 1000);
+            shieldEl.textContent = `ACTIF ${secs}s`;
+            shieldEl.className   = 'score-value shield-active';
+            if (shieldBar) shieldBar.style.width = (game.shieldActiveMs / 3000 * 100) + '%';
+        } else if (game.shieldReady) {
+            shieldEl.textContent = 'PRÊT';
+            shieldEl.className   = 'score-value shield-ready';
+            if (shieldBar) shieldBar.style.width = '100%';
+        } else {
+            const secs = Math.ceil(game.shieldCooldownMs / 1000);
+            shieldEl.textContent = `${secs}s`;
+            shieldEl.className   = 'score-value shield-cooldown';
+            if (shieldBar) shieldBar.style.width = ((1 - game.shieldCooldownMs / 60000) * 100) + '%';
+        }
+    }
 }
 
 function renderOpponent(opponentGrid) {
@@ -176,6 +214,19 @@ function renderOpponent(opponentGrid) {
         for (let x = 0; x < opponentGrid[y].length; x++)
             if (opponentGrid[y][x] !== 0)
                 drawCell(ctxOpponent, x, y, opponentGrid[y][x], CELL);
+
+    // Shield overlay adversaire
+    if (typeof duel !== 'undefined' && duel && duel.opponentShieldActive) {
+        const pulse = 0.6 + 0.4 * Math.sin(Date.now() / 150);
+        _drawShieldOverlay(ctxOpponent, 300, 600, pulse);
+    }
+
+    // Indicateur HTML adversaire
+    const oppShieldEl = document.getElementById('opponent-shield-indicator');
+    if (oppShieldEl) {
+        const active = typeof duel !== 'undefined' && duel && duel.opponentShieldActive;
+        oppShieldEl.style.display = active ? 'block' : 'none';
+    }
 }
 
 // Restore saved theme

Transcendence/srcs/frontend/src/tetris.css

@@ -651,3 +651,36 @@ button:disabled { opacity: 0.3; cursor: not-allowed; }
 }
 
 body { overflow: hidden; }
+
+
+/* ── Shield ───────────────────────────────── */
+.shield-bar-bg {
+    width: 100%;
+    height: 4px;
+    background: rgba(0,212,255,0.15);
+    border-radius: 2px;
+    margin-top: 4px;
+    overflow: hidden;
+}
+
+.shield-bar {
+    height: 100%;
+    background: #00d4ff;
+    border-radius: 2px;
+    transition: width 0.1s linear;
+    box-shadow: 0 0 6px #00d4ff;
+}
+
+.shield-ready   { color: #00d4ff !important; }
+.shield-active  { color: #00ffff !important; text-shadow: 0 0 8px #00ffff; }
+.shield-cooldown { color: var(--dim) !important; }
+
+kbd {
+    display: inline-block;
+    padding: 0 3px;
+    border: 1px solid var(--border);
+    border-radius: 2px;
+    font-size: 0.6rem;
+    font-family: inherit;
+    color: var(--dim);
+}

Transcendence/srcs/frontend/src/tetris.html

@@ -51,6 +51,12 @@
                         <div class="score-value" id="score-display">0</div>
                     </div>
 
+                    <div class="score-block">
+                        <div class="score-label">Shield <kbd>E</kbd></div>
+                        <div class="score-value shield-ready" id="shield-status-display">PRÊT</div>
+                        <div class="shield-bar-bg"><div class="shield-bar" id="shield-bar"></div></div>
+                    </div>
+
                     <div class="btn-group">
                         <button id="btn-start">Start</button>
                         <button id="btn-pause" disabled>Pause</button>
@@ -106,6 +112,7 @@
                     <div><span>W</span> Rot. droite</div>
                     <div><span>Espace</span> Drop</div>
                     <div><span>C</span> Hold</div>
+                    <div><span>E</span> Shield</div>
                 </div>
             </div>
 
@@ -120,6 +127,7 @@
                 <div class="score-label">Score</div>
                 <div class="score-value" id="opponent-score">—</div>
             </div>
+            <div id="opponent-shield-indicator" style="display:none;color:#00d4ff;font-size:0.75rem;text-align:center;letter-spacing:1px;margin-top:4px;">&#x1F6E1; SHIELD ACTIF</div>
         </div>
 
         <div id="opponent-wrapper">

Transcendence/srcs/frontend/src/tetris.js

@@ -3,11 +3,12 @@
 // ───────────────────────────────────────────
 
 class Tetris {
-    constructor(onRender, onGameOver, onBlockPlaced = null, onLinesCleared = null) {
+    constructor(onRender, onGameOver, onBlockPlaced = null, onLinesCleared = null, onShieldChanged = null) {
         this.onRender       = onRender;
         this.onGameOver     = onGameOver;
         this.onBlockPlaced  = onBlockPlaced;
         this.onLinesCleared = onLinesCleared;
+        this.onShieldChanged = onShieldChanged;
 
         this.grid         = this._createGrid(10, 20);
         this.bufferGrid   = this._createGrid(10, 5);
@@ -28,6 +29,12 @@ class Tetris {
         this.isPaused  = false;
         this.canStore  = true;
 
+        // Shield
+        this.shieldActive     = false;
+        this.shieldActiveMs   = 0;
+        this.shieldCooldownMs = 0;
+        this.shieldReady      = true;   // prêt dès le début
+
         this.animationFrameId = null;
         this.lastTime         = 0;
         this.accumulator      = 0;
@@ -55,6 +62,10 @@ class Tetris {
         this.timeToDown = this.initialTimeToDown;
         this.storedPiece = null;
         this.canStore    = true;
+        this.shieldActive     = false;
+        this.shieldActiveMs   = 0;
+        this.shieldCooldownMs = 0;
+        this.shieldReady      = true;
         this._spawnNewPiece();
         document.addEventListener('keydown', this._keyHandler);
         this._startGameLoop();
@@ -108,6 +119,8 @@ class Tetris {
             this.lastTime = currentTime;
             this.accumulator += deltaTime;
 
+            this._updateShield(deltaTime);
+
             while (this.isRunning && this.accumulator >= this.timeToDown) {
                 this._tick();
                 this.accumulator -= this.timeToDown;
@@ -174,11 +187,42 @@ class Tetris {
                 e.preventDefault();
                 if (!this.isPaused) this._storePiece();
                 break;
+            case 'e': case 'E':
+                e.preventDefault();
+                if (!this.isPaused) this._activateShield();
+                break;
         }
 
         this.onRender();
     }
 
+    _activateShield() {
+        if (!this.shieldReady || this.shieldActive) return;
+        this.shieldActive   = true;
+        this.shieldActiveMs = 3000;
+        this.shieldReady    = false;
+        if (this.onShieldChanged) this.onShieldChanged('activated');
+    }
+
+    _updateShield(deltaTime) {
+        if (this.shieldActive) {
+            this.shieldActiveMs -= deltaTime;
+            if (this.shieldActiveMs <= 0) {
+                this.shieldActive     = false;
+                this.shieldActiveMs   = 0;
+                this.shieldCooldownMs = 60000;
+                if (this.onShieldChanged) this.onShieldChanged('deactivated');
+            }
+        } else if (!this.shieldReady) {
+            this.shieldCooldownMs -= deltaTime;
+            if (this.shieldCooldownMs <= 0) {
+                this.shieldCooldownMs = 0;
+                this.shieldReady      = true;
+                if (this.onShieldChanged) this.onShieldChanged('ready');
+            }
+        }
+    }
+
     _hardDrop() {
         if (!this.currentPiece) return;
         let dist = 0;
@@ -275,8 +319,17 @@ class Tetris {
         const points = [0, 100, 300, 500, 800];
         this.score += points[cleared];
         this.count += points[cleared];
-        if (this.onLinesCleared && cleared > 0)
-            this.onLinesCleared(cleared, this.lastLandingCol);
+        if (cleared > 0) {
+            // Chaque ligne remplie réduit le cooldown du shield de 10s
+            if (!this.shieldActive && !this.shieldReady) {
+                this.shieldCooldownMs = Math.max(0, this.shieldCooldownMs - cleared * 10000);
+                if (this.shieldCooldownMs === 0) {
+                    this.shieldReady = true;
+                    if (this.onShieldChanged) this.onShieldChanged('ready');
+                }
+            }
+            if (this.onLinesCleared) this.onLinesCleared(cleared, this.lastLandingCol);
+        }
     }
 
     _makeHarder() {
@@ -361,6 +414,7 @@ class Tetris {
     }
 
     addGarbageLines(lines) {
+        if (this.shieldActive) return;  // shield bloque les lignes garbage
         if (!this.isRunning || !lines.length) return;
         this.grid.splice(0, lines.length);
         for (const line of lines) this.grid.push([...line]); // ...line pour faire une copie independante

Transcendence/srcs/frontend/src/ui.js

@@ -213,6 +213,10 @@ const game = new Tetris(
     // onLinesCleared — relay duel
     (count, holeCol) => {
         if (duel) duel.onLocalLinesCleared(count, holeCol);
+    },
+    // onShieldChanged — relay duel
+    (event) => {
+        if (duel) duel.onLocalShieldChanged(event);
     }
 );