From 499fc006f5a4151e4fbbe4f520eb6a9005f2a9f4 Mon Sep 17 00:00:00 2001
From: Dejvino <scoutmaster@dejvino.cz>
Date: Wed, 19 Nov 2025 23:43:52 +0100
Subject: [PATCH] Feature: bubling cauldron

---
 magic-mirror/src/core/animate.js   |  2 +
 magic-mirror/src/scene/cauldron.js | 97 ++++++++++++++++++++++++++++++
 magic-mirror/src/scene/root.js     |  4 ++
 3 files changed, 103 insertions(+)
 create mode 100644 magic-mirror/src/scene/cauldron.js

diff --git a/magic-mirror/src/core/animate.js b/magic-mirror/src/core/animate.js
index ac566d3..7feac1c 100644
--- a/magic-mirror/src/core/animate.js
+++ b/magic-mirror/src/core/animate.js
@@ -3,6 +3,7 @@ import { updateDoor } from '../scene/door.js';
 import { updateVcrDisplay } from '../scene/vcr-display.js';
 import { state } from '../state.js';
 import { updateScreenEffect } from '../scene/magic-mirror.js'
+import { updateCauldron } from '../scene/cauldron.js';
 import { updateFire } from '../scene/fireplace.js';
 
 function updateCamera() {
@@ -174,6 +175,7 @@ export function animate() {
     // updatePictureFrame();
     updateScreenEffect();
     updateFire();
+    updateCauldron();
 
     // RENDER!
     state.renderer.render(state.scene, state.camera);
diff --git a/magic-mirror/src/scene/cauldron.js b/magic-mirror/src/scene/cauldron.js
new file mode 100644
index 0000000..702a922
--- /dev/null
+++ b/magic-mirror/src/scene/cauldron.js
@@ -0,0 +1,97 @@
+import * as THREE from 'three';
+import { state } from '../state.js';
+
+let cauldronParticles;
+let cauldronLight;
+const particleCount = 8;
+const particleVelocities = [];
+
+export function createCauldron(x, y, z) {
+    const cauldronGroup = new THREE.Group();
+
+    const cauldronRadius = 0.2;
+    const cauldronHeight = 0.25;
+
+    // 1. Cauldron Body
+    const cauldronMaterial = new THREE.MeshPhongMaterial({ color: 0x111111, shininess: 80 });
+    // Use a sphere geometry cut in half for the bowl shape
+    const cauldronGeo = new THREE.SphereGeometry(cauldronRadius, 32, 16, 0, Math.PI * 2, 0, Math.PI / 2);
+    const cauldronMesh = new THREE.Mesh(cauldronGeo, cauldronMaterial);
+    cauldronMesh.castShadow = true;
+    cauldronMesh.rotation.z = Math.PI;
+    cauldronGroup.add(cauldronMesh);
+
+    // 2. Glowing Liquid Surface
+    const liquidColor = 0x00ff00; // Bright green
+    const liquidMaterial = new THREE.MeshPhongMaterial({
+        color: liquidColor,
+        emissive: liquidColor,
+        emissiveIntensity: 0.6,
+        shininess: 100
+    });
+    const liquidGeo = new THREE.CircleGeometry(cauldronRadius * 0.95, 32);
+    const liquidSurface = new THREE.Mesh(liquidGeo, liquidMaterial);
+    liquidSurface.rotation.x = -Math.PI / 2;
+    liquidSurface.position.y = -0.01; // Slightly below the rim
+    cauldronGroup.add(liquidSurface);
+
+    // 3. Bubbling Particles
+    const particleGeo = new THREE.BufferGeometry();
+    const positions = new Float32Array(particleCount * 3);
+
+    for (let i = 0; i < particleCount; i++) {
+        positions[i * 3] = (Math.random() - 0.5) * cauldronRadius * 1.5;
+        positions[i * 3 + 1] = (Math.random() - 0.5) * 0.05; // Start near the surface
+        positions[i * 3 + 2] = (Math.random() - 0.5) * cauldronRadius * 1.5;
+        particleVelocities.push((0.05 + Math.random() * 0.1) / 60); // Random upward velocity
+    }
+    particleGeo.setAttribute('position', new THREE.BufferAttribute(positions, 3));
+
+    const particleMaterial = new THREE.PointsMaterial({
+        color: liquidColor,
+        size: 0.015,
+        transparent: true,
+        blending: THREE.AdditiveBlending,
+        depthWrite: false,
+        opacity: 0.7
+    });
+
+    cauldronParticles = new THREE.Points(particleGeo, particleMaterial);
+    cauldronGroup.add(cauldronParticles);
+
+    // 4. Light from the cauldron
+    cauldronLight = new THREE.PointLight(liquidColor, 0.8, 3);
+    cauldronLight.position.y = 0.2;
+    cauldronLight.castShadow = true;
+    cauldronGroup.add(cauldronLight);
+
+    // Position and add to scene
+    cauldronGroup.position.set(x, y, z);
+    state.scene.add(cauldronGroup);
+}
+
+export function updateCauldron() {
+    if (!cauldronParticles || !cauldronLight) return;
+
+    // Animate Bubbles
+    const positions = cauldronParticles.geometry.attributes.position.array;
+    const bubbleMaxHeight = 0.1;
+    const overfly = Math.random() * bubbleMaxHeight;
+
+    for (let i = 0; i < particleCount; i++) {
+        positions[i * 3 + 1] += particleVelocities[i]; // Move bubble up
+
+        // Reset bubble if it goes too high
+        if (positions[i * 3 + 1] > bubbleMaxHeight + overfly) {
+            positions[i * 3 + 1] = (Math.random() - 0.5) * 0.05;
+            // Give it a new random X/Z position
+            positions[i * 3] = (Math.random() - 0.5) * 0.2 * 1.5;
+            positions[i * 3 + 2] = (Math.random() - 0.5) * 0.2 * 1.5;
+        }
+    }
+    cauldronParticles.geometry.attributes.position.needsUpdate = true;
+
+    // Flicker Light
+    const flicker = Math.random() * 0.02;
+    cauldronLight.intensity = 0.1 + flicker;
+}
\ No newline at end of file
diff --git a/magic-mirror/src/scene/root.js b/magic-mirror/src/scene/root.js
index da768ba..3af39ed 100644
--- a/magic-mirror/src/scene/root.js
+++ b/magic-mirror/src/scene/root.js
@@ -5,6 +5,7 @@ import { createBookshelf } from './bookshelf.js';
 import { createMagicMirror } from './magic-mirror.js';
 import { createFireplace } from './fireplace.js';
 import { createTable } from './table.js';
+import { createCauldron } from './cauldron.js';
 import { PictureFrame } from './PictureFrame.js';
 import painting1 from '/textures/painting1.jpg';
 import painting2 from '/textures/painting2.jpg';
@@ -78,6 +79,9 @@ export function createSceneObjects() {
 
     createTable(-1.8, 0, -0.8, Math.PI / 2.3);
 
+    // Add cauldron on top of the table (Y = table height + cauldron radius)
+    createCauldron(-1.8, 0.5 + 0.2, -0.8);
+
     // --- 8. Timber Frames ---
     const beamThickness = 0.15;
     const beamDepth = 0.2;