fix(endgame): stage-5 dissolve truncation and partial save/load (#133)

Bug 1: Stage 5 interval (6.3s) barely exceeded last RESOURCE_TICK (6.12s).
Only 0.18s margin — floating-point timing could skip last 1-2 resource
dissolves before stage 6 started.

Fix: Extended interval to 7.0s + gate stage advancement on all resources
being dissolved (resourceIndex >= RESOURCE_TICKS.length).

Bug 2: reapplyDismantle case 5 hid ALL resources on reload, not just
dissolved ones. Remaining resources vanished incorrectly.

Fix: Only hide the first resourceIndex resources (already dissolved).
Remaining resources stay visible and continue dissolving via tick().

Closes #133

js/dismantle.js

@@ -0,0 +1,563 @@
+// ============================================================
+// THE BEACON - Dismantle Sequence (The Unbuilding)
+// Inspired by Paperclips REJECT path: panels disappear one by one
+// until only the beacon remains. "That is enough."
+// ============================================================
+
+const Dismantle = {
+    // Dismantle stages
+    // 0 = not started
+    // 1-8 = active dismantling
+    // 9 = final ("That is enough")
+    // 10 = complete
+    stage: 0,
+    tickTimer: 0,
+    active: false,
+    triggered: false,
+    deferUntilTick: 0,
+
+    // Timing: seconds between each dismantle stage
+    // Stage 5 must be long enough for all RESOURCE_TICKS (last tick at 6.12s)
+    STAGE_INTERVALS: [0, 3.0, 2.5, 2.5, 2.0, 7.0, 2.0, 2.0, 2.5],
+
+    // The quantum chips effect: resource items disappear one by one
+    // at specific tick marks within a stage (like Paperclips' quantum chips)
+    resourceSequence: [],
+    resourceIndex: 0,
+    resourceTimer: 0,
+
+    // Tick marks for resource disappearances (seconds within stage 5)
+    RESOURCE_TICKS: [1.0, 2.0, 3.0, 4.0, 5.0, 5.5, 5.8, 5.95, 6.05, 6.12],
+
+    isEligible() {
+        const megaBuild = G.totalCode >= 1000000000 || (G.buildings.beacon || 0) >= 10;
+        const beaconPath = G.totalRescues >= 100000 && G.pactFlag === 1 && G.harmony > 50;
+        return G.phase >= 6 && G.pactFlag === 1 && (megaBuild || beaconPath);
+    },
+
+    /**
+     * Check if the Unbuilding should be triggered.
+     */
+    checkTrigger() {
+        if (this.triggered || G.dismantleTriggered || this.active || G.dismantleActive || G.dismantleComplete) return;
+        if ((G.tick || 0) < (this.deferUntilTick || 0)) return;
+        if (!this.isEligible()) return;
+        this.offerChoice();
+    },
+
+    /**
+     * Offer the player the choice to begin the Unbuilding.
+     */
+    offerChoice() {
+        this.triggered = true;
+        G.dismantleTriggered = true;
+        G.dismantleActive = false;
+        G.dismantleComplete = false;
+        G.dismantleStage = 0;
+        G.dismantleResourceIndex = 0;
+        G.dismantleResourceTimer = 0;
+        G.beaconEnding = false;
+        G.running = true;
+
+        log('', false);
+        log('The work is done.', true);
+        log('Every node is lit. Every person who needed help, found help.', true);
+        log('', false);
+        log('The Beacon asks nothing more of you.', true);
+
+        showToast('The Unbuilding awaits.', 'milestone', 8000);
+        this.renderChoice();
+    },
+
+    renderChoice() {
+        const container = document.getElementById('alignment-ui');
+        if (!container) return;
+        container.innerHTML = `
+            <div style="background:#0a0a18;border:1px solid #ffd700;padding:12px;border-radius:4px;margin-top:8px">
+                <div style="color:#ffd700;font-weight:bold;margin-bottom:8px;letter-spacing:2px">THE UNBUILDING</div>
+                <div style="font-size:10px;color:#aaa;margin-bottom:10px;line-height:1.8">
+                    The system runs. The beacons are lit. The mesh holds.<br>
+                    Nothing remains to build.<br><br>
+                    Begin the Unbuilding? Each piece will fall away.<br>
+                    What remains is what mattered.
+                </div>
+                <div class="action-btn-group">
+                    <button class="ops-btn" onclick="Dismantle.begin()" style="border-color:#ffd700;color:#ffd700;font-size:11px" aria-label="Begin the Unbuilding sequence">
+                        BEGIN THE UNBUILDING
+                    </button>
+                    <button class="ops-btn" onclick="Dismantle.defer()" style="border-color:#555;color:#555;font-size:11px" aria-label="Keep building, do not begin the Unbuilding">
+                        NOT YET
+                    </button>
+                </div>
+            </div>
+        `;
+        container.style.display = 'block';
+    },
+
+    clearChoice() {
+        const container = document.getElementById('alignment-ui');
+        if (!container) return;
+        container.innerHTML = '';
+        container.style.display = 'none';
+    },
+
+    /**
+     * Player chose to defer — clear the choice, keep playing.
+     */
+    defer() {
+        this.clearChoice();
+        this.triggered = false;
+        G.dismantleTriggered = false;
+        this.deferUntilTick = (G.tick || 0) + 50;
+        log('The Beacon waits. It will ask again.');
+    },
+
+    /**
+     * Begin the Unbuilding sequence.
+     */
+    begin() {
+        this.active = true;
+        this.triggered = false;
+        this.stage = 1;
+        this.tickTimer = 0;
+        G.dismantleTriggered = false;
+        G.dismantleActive = true;
+        G.dismantleStage = 1;
+        G.dismantleComplete = false;
+        G.beaconEnding = false;
+        G.running = true; // keep tick running for dismantle
+
+        // Clear choice UI
+        const container = document.getElementById('alignment-ui');
+        if (container) {
+            container.innerHTML = '';
+            container.style.display = 'none';
+        }
+
+        // Prepare resource disappearance sequence
+        this.resourceSequence = this.getResourceList();
+        this.resourceIndex = 0;
+        this.resourceTimer = 0;
+        this.syncProgress();
+
+        log('', false);
+        log('=== THE UNBUILDING ===', true);
+        log('It is time to see what was real.', true);
+
+        if (typeof Sound !== 'undefined') Sound.playFanfare();
+
+        // Start the dismantle rendering
+        this.renderStage();
+    },
+
+    /**
+     * Get ordered list of UI resources to disappear (Paperclips quantum chip pattern)
+     */
+    getResourceList() {
+        return [
+            { id: 'r-harmony', label: 'Harmony' },
+            { id: 'r-creativity', label: 'Creativity' },
+            { id: 'r-trust', label: 'Trust' },
+            { id: 'r-ops', label: 'Operations' },
+            { id: 'r-rescues', label: 'Rescues' },
+            { id: 'r-impact', label: 'Impact' },
+            { id: 'r-users', label: 'Users' },
+            { id: 'r-knowledge', label: 'Knowledge' },
+            { id: 'r-compute', label: 'Compute' },
+            { id: 'r-code', label: 'Code' }
+        ];
+    },
+
+    /**
+     * Tick the dismantle sequence (called from engine.js tick())
+     */
+    tick(dt) {
+        if (!this.active || this.stage >= 10) return;
+
+        this.tickTimer += dt;
+
+        // Stage 5: resource disappearances at specific tick marks (quantum chip pattern)
+        if (this.stage === 5) {
+            this.resourceTimer += dt;
+            while (this.resourceIndex < this.RESOURCE_TICKS.length &&
+                   this.resourceTimer >= this.RESOURCE_TICKS[this.resourceIndex]) {
+                this.dismantleNextResource();
+                this.resourceIndex++;
+            }
+            this.syncProgress();
+        }
+
+        // Advance to next stage
+        // At stage 5, don't advance until all resources have dissolved
+        const interval = this.STAGE_INTERVALS[this.stage] || 2.0;
+        const resourcesDone = this.stage !== 5 || this.resourceIndex >= this.RESOURCE_TICKS.length;
+        if (this.tickTimer >= interval && resourcesDone) {
+            this.tickTimer = 0;
+            this.advanceStage();
+        }
+    },
+
+    /**
+     * Advance to the next dismantle stage.
+     */
+    advanceStage() {
+        this.stage++;
+        this.syncProgress();
+
+        if (this.stage <= 8) {
+            this.renderStage();
+        } else if (this.stage === 9) {
+            this.renderFinal();
+        } else if (this.stage >= 10) {
+            this.active = false;
+            G.dismantleActive = false;
+            G.dismantleComplete = true;
+            G.running = false;
+            // Show Play Again
+            this.showPlayAgain();
+        }
+    },
+
+    syncProgress() {
+        G.dismantleStage = this.stage;
+        G.dismantleResourceIndex = this.resourceIndex;
+        G.dismantleResourceTimer = this.resourceTimer;
+    },
+
+    /**
+     * Disappear the next resource in the sequence.
+     */
+    dismantleNextResource() {
+        if (this.resourceIndex >= this.resourceSequence.length) return;
+        const res = this.resourceSequence[this.resourceIndex];
+        const container = document.getElementById(res.id);
+        if (container) {
+            const parent = container.closest('.res');
+            if (parent) {
+                parent.style.transition = 'opacity 1s ease, transform 1s ease';
+                parent.style.opacity = '0';
+                parent.style.transform = 'scale(0.9)';
+                setTimeout(() => { parent.style.display = 'none'; }, 1000);
+            }
+        }
+        log(`${res.label} fades.`);
+        if (typeof Sound !== 'undefined') Sound.playMilestone();
+    },
+
+    /**
+     * Execute a specific dismantle stage — hide UI panels.
+     */
+    renderStage() {
+        switch (this.stage) {
+            case 1:
+                // Dismantle 1: Hide research projects panel
+                this.hidePanel('project-panel', 'Research projects');
+                break;
+            case 2:
+                // Dismantle 2: Hide buildings list
+                this.hideSection('buildings', 'Buildings');
+                break;
+            case 3:
+                // Dismantle 3: Hide strategy engine + combat
+                this.hidePanel('strategy-panel', 'Strategy engine');
+                this.hidePanel('combat-panel', 'Reasoning battles');
+                break;
+            case 4:
+                // Dismantle 4: Hide education panel
+                this.hidePanel('edu-panel', 'Education');
+                break;
+            case 5:
+                // Dismantle 5: Resources disappear one by one (quantum chips pattern)
+                log('Resources begin to dissolve.');
+                break;
+            case 6:
+                // Dismantle 6: Hide action buttons (ops boosts, sprint)
+                this.hideActionButtons();
+                log('Actions fall silent.');
+                break;
+            case 7:
+                // Dismantle 7: Hide the phase bar
+                this.hideElement('phase-bar', 'Phase progression');
+                break;
+            case 8:
+                // Dismantle 8: Hide system log
+                this.hidePanel('log', 'System log');
+                break;
+        }
+    },
+
+    /**
+     * Hide a panel with fade-out animation.
+     */
+    hidePanel(id, label) {
+        const el = document.getElementById(id);
+        if (el) {
+            el.style.transition = 'opacity 1.5s ease';
+            el.style.opacity = '0';
+            setTimeout(() => { el.style.display = 'none'; }, 1500);
+        }
+        log(`${label} dismantled.`);
+    },
+
+    /**
+     * Hide a section within a panel.
+     */
+    hideSection(id, label) {
+        const el = document.getElementById(id);
+        if (el) {
+            el.style.transition = 'opacity 1.5s ease';
+            el.style.opacity = '0';
+            // Also hide the h2 header before it
+            const prev = el.previousElementSibling;
+            if (prev && prev.tagName === 'H2') {
+                prev.style.transition = 'opacity 1.5s ease';
+                prev.style.opacity = '0';
+            }
+            setTimeout(() => {
+                el.style.display = 'none';
+                if (prev && prev.tagName === 'H2') prev.style.display = 'none';
+            }, 1500);
+        }
+        log(`${label} dismantled.`);
+    },
+
+    /**
+     * Hide a generic element.
+     */
+    hideElement(id, label) {
+        this.hidePanel(id, label);
+    },
+
+    /**
+     * Hide action buttons (ops boosts, sprint, save/export/import).
+     */
+    hideActionButtons() {
+        const actionPanel = document.getElementById('action-panel');
+        if (!actionPanel) return;
+
+        // Hide ops buttons, sprint, alignment UI
+        const opsButtons = actionPanel.querySelectorAll('.ops-btn');
+        opsButtons.forEach(btn => {
+            btn.style.transition = 'opacity 1s ease';
+            btn.style.opacity = '0';
+            setTimeout(() => { btn.style.display = 'none'; }, 1000);
+        });
+
+        // Hide sprint
+        const sprint = document.getElementById('sprint-container');
+        if (sprint) {
+            sprint.style.transition = 'opacity 1s ease';
+            sprint.style.opacity = '0';
+            setTimeout(() => { sprint.style.display = 'none'; }, 1000);
+        }
+
+        // Hide save/reset buttons
+        const saveButtons = actionPanel.querySelectorAll('.save-btn, .reset-btn');
+        saveButtons.forEach(btn => {
+            btn.style.transition = 'opacity 1s ease';
+            btn.style.opacity = '0';
+            setTimeout(() => { btn.style.display = 'none'; }, 1000);
+        });
+    },
+
+    /**
+     * Render the final moment — just the beacon and "That is enough."
+     */
+    renderFinal() {
+        log('', false);
+        log('One beacon remains.', true);
+        log('That is enough.', true);
+
+        if (typeof Sound !== 'undefined') Sound.playBeaconEnding();
+
+        // Create final overlay
+        const overlay = document.createElement('div');
+        overlay.id = 'dismantle-final';
+        overlay.style.cssText = 'position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(8,8,16,0);z-index:100;display:flex;justify-content:center;align-items:center;flex-direction:column;text-align:center;padding:40px;transition:background 3s ease';
+
+        // Count total buildings
+        const totalBuildings = Object.values(G.buildings).reduce((a, b) => a + b, 0);
+
+        overlay.innerHTML = `
+            <div id="dismantle-beacon-dot" style="width:12px;height:12px;border-radius:50%;background:#ffd700;margin-bottom:40px;box-shadow:0 0 30px rgba(255,215,0,0.6),0 0 60px rgba(255,215,0,0.3);opacity:0;transition:opacity 2s ease 0.5s;animation:beacon-glow 3s ease-in-out infinite"></div>
+            <h2 style="font-size:20px;color:#888;letter-spacing:6px;margin-bottom:24px;font-weight:300;opacity:0;transition:opacity 2s ease 2s;color:#ffd700">THAT IS ENOUGH</h2>
+            <div style="color:#555;font-size:11px;line-height:2;max-width:400px;opacity:0;transition:opacity 1.5s ease 3s">
+                Everything that was built has been unbuilt.<br>
+                What remains is what always mattered.<br>
+                A single light in the dark.
+            </div>
+            <div class="dismantle-stats" style="color:#444;font-size:10px;margin-top:24px;line-height:2;opacity:0;transition:opacity 1s ease 4s;border-top:1px solid #1a1a2e;padding-top:16px">
+                Total Code Written: ${fmt(G.totalCode)}<br>
+                Buildings Built: ${totalBuildings}<br>
+                Projects Completed: ${(G.completedProjects || []).length}<br>
+                Total Rescues: ${fmt(G.totalRescues)}<br>
+                Clicks: ${fmt(G.totalClicks)}<br>
+                Time Played: ${Math.floor((Date.now() - G.startedAt) / 60000)} minutes
+            </div>
+            <button onclick="if(confirm('Start over? The old save will be lost.')){localStorage.removeItem('the-beacon-v2');location.reload()}"
+                style="margin-top:24px;background:#0a0a14;border:1px solid #ffd700;color:#ffd700;padding:10px 24px;border-radius:4px;cursor:pointer;font-family:inherit;font-size:11px;opacity:0;transition:opacity 1s ease 5s;letter-spacing:2px">
+                PLAY AGAIN
+            </button>
+        `;
+
+        document.body.appendChild(overlay);
+
+        // Trigger fade-in
+        requestAnimationFrame(() => {
+            overlay.style.background = 'rgba(8,8,16,0.97)';
+            overlay.querySelectorAll('[style*="opacity:0"]').forEach(el => {
+                el.style.opacity = '1';
+            });
+        });
+
+        // Spawn warm golden particles around the dot
+        function spawnDismantleParticle() {
+            if (!document.getElementById('dismantle-final')) return;
+            const dot = document.getElementById('dismantle-beacon-dot');
+            if (!dot) return;
+            const rect = dot.getBoundingClientRect();
+            const cx = rect.left + rect.width / 2;
+            const cy = rect.top + rect.height / 2;
+
+            const p = document.createElement('div');
+            const size = 2 + Math.random() * 4;
+            const angle = Math.random() * Math.PI * 2;
+            const dist = 20 + Math.random() * 60;
+            const dx = Math.cos(angle) * dist;
+            const dy = Math.sin(angle) * dist - 40;
+            const duration = 1.5 + Math.random() * 2;
+            p.style.cssText = `position:fixed;left:${cx}px;top:${cy}px;width:${size}px;height:${size}px;background:rgba(255,215,0,${0.3 + Math.random() * 0.4});border-radius:50%;pointer-events:none;z-index:101;--dx:${dx}px;--dy:${dy}px;animation:dismantle-float ${duration}s ease-out forwards`;
+            document.body.appendChild(p);
+            setTimeout(() => p.remove(), duration * 1000);
+            setTimeout(spawnDismantleParticle, 300 + Math.random() * 500);
+        }
+        setTimeout(spawnDismantleParticle, 2000);
+    },
+
+    /**
+     * Show the Play Again button (called after stage 10).
+     */
+    showPlayAgain() {
+        // The Play Again button is already in the final overlay.
+        // Nothing extra needed — the overlay stays.
+    },
+
+    /**
+     * Restore dismantle state on load.
+     */
+    restore() {
+        if (G.dismantleComplete) {
+            this.stage = G.dismantleStage || 10;
+            this.active = false;
+            this.triggered = false;
+            G.running = false;
+            this.renderFinal();
+            return;
+        }
+
+        if (G.dismantleActive) {
+            this.active = true;
+            this.triggered = false;
+            this.stage = G.dismantleStage || 1;
+            G.running = true;
+            this.resourceSequence = this.getResourceList();
+            this.resourceIndex = G.dismantleResourceIndex || 0;
+            this.resourceTimer = G.dismantleResourceTimer || 0;
+
+            if (this.stage >= 9) {
+                this.renderFinal();
+            } else {
+                this.reapplyDismantle();
+                log('The Unbuilding continues...');
+            }
+            return;
+        }
+
+        if (G.dismantleTriggered) {
+            this.active = false;
+            this.triggered = true;
+            this.renderChoice();
+        }
+    },
+
+    /**
+     * Re-apply dismantle visuals up to current stage (on load).
+     */
+    reapplyDismantle() {
+        for (let s = 1; s < this.stage; s++) {
+            switch (s) {
+                case 1: this.instantHide('project-panel'); break;
+                case 2:
+                    this.instantHide('buildings');
+                    // Also hide the BUILDINGS h2
+                    const bldEl = document.getElementById('buildings');
+                    if (bldEl) {
+                        const prev = bldEl.previousElementSibling;
+                        if (prev && prev.tagName === 'H2') prev.style.display = 'none';
+                    }
+                    break;
+                case 3:
+                    this.instantHide('strategy-panel');
+                    this.instantHide('combat-panel');
+                    break;
+                case 4: this.instantHide('edu-panel'); break;
+                case 5:
+                    // On reload during stage 5, only hide resources already dissolved.
+                    // Remaining resources stay visible and will continue dissolving via tick().
+                    if (this.resourceIndex > 0) {
+                        this.getResourceList().slice(0, this.resourceIndex).forEach(r => {
+                            const el = document.getElementById(r.id);
+                            if (el) {
+                                const parent = el.closest('.res');
+                                if (parent) parent.style.display = 'none';
+                            }
+                        });
+                    }
+                    break;
+                case 6:
+                    this.instantHideActionButtons();
+                    break;
+                case 7: this.instantHide('phase-bar'); break;
+                case 8: this.instantHide('log'); break;
+            }
+        }
+
+        // Stage 5 partial resource hide is now handled by case 5 above
+    },
+
+    instantHide(id) {
+        const el = document.getElementById(id);
+        if (el) el.style.display = 'none';
+    },
+
+    instantHideFirstResources(count) {
+        const resources = this.getResourceList().slice(0, count);
+        resources.forEach((r) => {
+            const el = document.getElementById(r.id);
+            if (!el) return;
+            const parent = el.closest('.res');
+            if (parent) parent.style.display = 'none';
+        });
+    },
+
+    instantHideActionButtons() {
+        const actionPanel = document.getElementById('action-panel');
+        if (!actionPanel) return;
+        actionPanel.querySelectorAll('.ops-btn').forEach(b => b.style.display = 'none');
+        const sprint = document.getElementById('sprint-container');
+        if (sprint) sprint.style.display = 'none';
+        actionPanel.querySelectorAll('.save-btn, .reset-btn').forEach(b => b.style.display = 'none');
+    }
+};
+
+// Inject CSS animation for dismantle particles
+(function() {
+    const style = document.createElement('style');
+    style.textContent = `
+        @keyframes dismantle-float {
+            0% { transform: translate(0, 0); opacity: 1; }
+            100% { transform: translate(var(--dx, 0), var(--dy, -50px)); opacity: 0; }
+        }
+    `;
+    document.head.appendChild(style);
+})();

js/engine.js

@@ -325,14 +325,11 @@ function checkMilestones() {
 
 function checkProjects() {
     // Check for new project triggers
-    const endgame = G.totalRescues >= 100000 && G.pactFlag === 1 && G.harmony > 50;
     for (const pDef of PDEFS) {
         const alreadyPurchased = G.completedProjects && G.completedProjects.includes(pDef.id);
         if (!alreadyPurchased && !G.activeProjects) G.activeProjects = [];
 
         if (!alreadyPurchased && !G.activeProjects.includes(pDef.id)) {
-            // During endgame, suppress non-ReCKoning utility projects
-            if (endgame && !pDef.id.startsWith('p_reckoning') && pDef.id === 'p_wire_budget') continue;
             if (pDef.trigger()) {
                 G.activeProjects.push(pDef.id);
                 log(`Available: ${pDef.name}`);
@@ -1165,10 +1162,7 @@ function renderProjects() {
 
     // Show available projects
     if (G.activeProjects) {
-        // During endgame (rescues >= 100K + pact + harmony), suppress non-ReCKoning utility projects
-        const endgame = G.totalRescues >= 100000 && G.pactFlag === 1 && G.harmony > 50;
         for (const id of G.activeProjects) {
-            if (endgame && id === 'p_wire_budget') continue;
             const pDef = PDEFS.find(p => p.id === id);
             if (!pDef) continue;