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| <html> | |
| <head> | |
| <title>Three.js Synced World (DB Backend)</title> | |
| <style> | |
| body { margin: 0; overflow: hidden; } | |
| canvas { display: block; } | |
| </style> | |
| </head> | |
| <body> | |
| <script type="importmap"> | |
| { | |
| "imports": { | |
| "three": "https://unpkg.com/[email protected]/build/three.module.js", | |
| "three/addons/": "https://unpkg.com/[email protected]/examples/jsm/" | |
| } | |
| } | |
| </script> | |
| <script type="module"> | |
| import * as THREE from 'three'; | |
| // --- Variables --- | |
| let scene, camera, renderer, playerMesh; | |
| let raycaster, mouse; | |
| const keysPressed = {}; | |
| const playerSpeed = 0.15; | |
| let newlyPlacedObjects = []; // For sessionStorage | |
| const placeholderPlots = new Set(); | |
| const groundMeshes = {}; | |
| const allRenderedObjects = {}; // Tracks all current objects by ID | |
| const SESSION_STORAGE_KEY = 'unsavedDbWorldState_v2'; | |
| // --- State from Python --- | |
| const allInitialObjects = window.ALL_INITIAL_OBJECTS || []; | |
| const plotsMetadata = window.PLOTS_METADATA || []; | |
| const selectedObjectType = window.SELECTED_OBJECT_TYPE || "None"; | |
| const plotWidth = window.PLOT_WIDTH || 50.0; | |
| const plotDepth = window.PLOT_DEPTH || 50.0; | |
| // --- Materials --- | |
| const groundMaterial = new THREE.MeshStandardMaterial({ color: 0x55aa55, roughness: 0.9, metalness: 0.1, side: THREE.DoubleSide }); | |
| const placeholderGroundMaterial = new THREE.MeshStandardMaterial({ color: 0x448844, roughness: 0.95, metalness: 0.1, side: THREE.DoubleSide }); | |
| // --- Initialization --- | |
| function init() { | |
| scene = new THREE.Scene(); | |
| scene.background = new THREE.Color(0xabcdef); | |
| const aspect = window.innerWidth / window.innerHeight; | |
| camera = new THREE.PerspectiveCamera(60, aspect, 0.1, 4000); | |
| camera.position.set(plotWidth / 2, 15, plotDepth / 2 + 20); // Start looking at first plot | |
| camera.lookAt(plotWidth / 2, 0, plotDepth/2); | |
| scene.add(camera); | |
| setupLighting(); | |
| setupInitialGround(); // Creates ground based on plotsMetadata | |
| setupPlayer(); | |
| raycaster = new THREE.Raycaster(); | |
| mouse = new THREE.Vector2(); | |
| renderer = new THREE.WebGLRenderer({ antialias: true }); | |
| renderer.setSize(window.innerWidth, window.innerHeight); | |
| renderer.shadowMap.enabled = true; | |
| renderer.shadowMap.type = THREE.PCFSoftShadowMap; | |
| document.body.appendChild(renderer.domElement); | |
| loadInitialObjects(); // Loads objects from DB data | |
| restoreUnsavedState(); // Loads unsaved from sessionStorage | |
| // Event Listeners | |
| document.addEventListener('mousemove', onMouseMove, false); | |
| document.addEventListener('click', onDocumentClick, false); | |
| window.addEventListener('resize', onWindowResize, false); | |
| document.addEventListener('keydown', onKeyDown); | |
| document.addEventListener('keyup', onKeyUp); | |
| // Define global functions for Python | |
| window.teleportPlayer = teleportPlayer; | |
| window.getSaveDataAndPosition = getSaveDataAndPosition; | |
| console.log("Three.js Initialized (DB Backend v2). World ready."); | |
| animate(); | |
| } | |
| // --- Setup Functions --- | |
| function setupLighting() { const a=new THREE.AmbientLight(0xffffff,0.5); scene.add(a); const d=new THREE.DirectionalLight(0xffffff,1.0); d.position.set(50,150,100); d.castShadow=true; d.shadow.mapSize.width=4096; d.shadow.mapSize.height=4096; d.shadow.camera.near=0.5; d.shadow.camera.far=500; d.shadow.camera.left=-150; d.shadow.camera.right=150; d.shadow.camera.top=150; d.shadow.camera.bottom=-150; d.shadow.bias=-0.001; scene.add(d); } | |
| function setupInitialGround() { plotsMetadata.forEach(p => {createGroundPlane(p.grid_x,p.grid_z,false);}); if(plotsMetadata.length===0) {createGroundPlane(0,0,false);} } | |
| function createGroundPlane(gx,gz,isPlaceholder) { const k=`${gx}_${gz}`; if(groundMeshes[k]) return; const geo=new THREE.PlaneGeometry(plotWidth,plotDepth); const mat=isPlaceholder?placeholderGroundMaterial:groundMaterial; const mesh=new THREE.Mesh(geo,mat); mesh.rotation.x=-Math.PI/2; mesh.position.y=-0.05; mesh.position.x=gx*plotWidth+plotWidth/2; mesh.position.z=gz*plotDepth+plotDepth/2; mesh.receiveShadow=true; mesh.userData.gridKey=k; scene.add(mesh); groundMeshes[k]=mesh; if(isPlaceholder){placeholderPlots.add(k);} } | |
| function setupPlayer() { const g=new THREE.CapsuleGeometry(0.4,0.8,4,8); const m=new THREE.MeshStandardMaterial({color:0x0000ff,roughness:0.6}); playerMesh=new THREE.Mesh(g,m); playerMesh.position.set(plotWidth/2, 0.8, plotDepth/2); playerMesh.castShadow=true; playerMesh.receiveShadow=true; scene.add(playerMesh); } | |
| // --- Object Loading / State Management --- | |
| function loadInitialObjects() { console.log(`Loading ${allInitialObjects.length} initial objects.`); clearAllRenderedObjects(); allInitialObjects.forEach(d => { createAndPlaceObject(d, false); }); console.log("Finished initial load."); } | |
| function clearAllRenderedObjects() { Object.values(allRenderedObjects).forEach(o => { if(o.parent) o.parent.remove(o); /* Remove safely */ }); for (const k in allRenderedObjects) delete allRenderedObjects[k]; newlyPlacedObjects = []; } | |
| function createAndPlaceObject(objData, isNewObjectForSession) { let obj=null; switch(objData.type){case "Simple House":obj=createSimpleHouse();break; case "Tree":obj=createTree();break; case "Rock":obj=createRock();break; case "Fence Post":obj=createFencePost();break; default: return null;} if(obj){ obj.userData.obj_id = objData.obj_id || obj.userData.obj_id; if(allRenderedObjects[obj.userData.obj_id]){console.warn(`Duplicate obj ID load skipped: ${obj.userData.obj_id}`); return null;} if(objData.position&&objData.position.x!==undefined){obj.position.set(objData.position.x,objData.position.y,objData.position.z);} else if(objData.pos_x!==undefined){obj.position.set(objData.pos_x,objData.pos_y,objData.pos_z);} else {obj.position.set(0,0.5,0);} if(objData.rotation){obj.rotation.set(objData.rotation._x,objData.rotation._y,objData.rotation._z,objData.rotation._order||'XYZ');} else if(objData.rot_x!==undefined){obj.rotation.set(objData.rot_x,objData.rot_y,objData.rot_z,objData.rot_order||'XYZ');} scene.add(obj); allRenderedObjects[obj.userData.obj_id]=obj; if(isNewObjectForSession){newlyPlacedObjects.push(obj);} return obj; } return null; } | |
| function saveUnsavedState() { try { const d = newlyPlacedObjects.map(o => ({obj_id:o.userData.obj_id, type:o.userData.type, position:{x:o.position.x,y:o.position.y,z:o.position.z}, rotation:{_x:o.rotation.x,_y:o.rotation.y,_z:o.rotation.z,_order:o.rotation.order}})); sessionStorage.setItem(SESSION_STORAGE_KEY, JSON.stringify(d)); } catch(e) { console.error("Session save error:", e); } } | |
| function restoreUnsavedState() { try { const s=sessionStorage.getItem(SESSION_STORAGE_KEY); if(s) { const d=JSON.parse(s); if(Array.isArray(d)) { let c=0; d.forEach(o => { if(createAndPlaceObject(o, true)) c++;}); console.log(`Restored ${c} unsaved objects.`); } } } catch(e) { console.error("Session restore error:", e); sessionStorage.removeItem(SESSION_STORAGE_KEY); } } | |
| // --- Object Creation Primitives --- | |
| function createObjectBase(type) { return { userData: { type: type, obj_id: THREE.MathUtils.generateUUID() } }; } | |
| function createSimpleHouse() { const base = createObjectBase("Simple House"); const group = new THREE.Group(); Object.assign(group, base); const mat1=new THREE.MeshStandardMaterial({color:0xffccaa,roughness:0.8}), mat2=new THREE.MeshStandardMaterial({color:0xaa5533,roughness:0.7}); const m1=new THREE.Mesh(new THREE.BoxGeometry(2,1.5,2.5),mat1); m1.position.y=0.75;m1.castShadow=true;m1.receiveShadow=true;group.add(m1); const m2=new THREE.Mesh(new THREE.ConeGeometry(1.8,1,4),mat2); m2.position.y=1.5+0.5;m2.rotation.y=Math.PI/4;m2.castShadow=true;m2.receiveShadow=true;group.add(m2); return group; } | |
| function createTree() { const base=createObjectBase("Tree"); const group=new THREE.Group(); Object.assign(group,base); const mat1=new THREE.MeshStandardMaterial({color:0x8B4513,roughness:0.9}), mat2=new THREE.MeshStandardMaterial({color:0x228B22,roughness:0.8}); const m1=new THREE.Mesh(new THREE.CylinderGeometry(0.3,0.4,2,8),mat1); m1.position.y=1; m1.castShadow=true;m1.receiveShadow=true;group.add(m1); const m2=new THREE.Mesh(new THREE.IcosahedronGeometry(1.2,0),mat2); m2.position.y=2.8; m2.castShadow=true;m2.receiveShadow=true;group.add(m2); return group; } | |
| function createRock() { const base=createObjectBase("Rock"); const mat=new THREE.MeshStandardMaterial({color:0xaaaaaa,roughness:0.8,metalness:0.1}); const rock=new THREE.Mesh(new THREE.IcosahedronGeometry(0.7,0),mat); Object.assign(rock,base); rock.position.y=0.35; rock.rotation.set(Math.random()*Math.PI, Math.random()*Math.PI, 0); rock.castShadow=true;rock.receiveShadow=true; return rock; } | |
| function createFencePost() { // Continuing from where it cut off | |
| const base=createObjectBase("Fence Post"); | |
| const mat=new THREE.MeshStandardMaterial({color:0xdeb887, roughness:0.9}); // BurlyWood color | |
| const post=new THREE.Mesh(new THREE.BoxGeometry(0.2, 1.5, 0.2), mat); | |
| Object.assign(post, base); // Add userData to the mesh itself | |
| post.position.y= 1.5 / 2; // Position base at y=0 | |
| post.castShadow=true; | |
| post.receiveShadow=true; | |
| return post; | |
| } | |
| // --- Event Handlers --- | |
| function onMouseMove(event) { | |
| // Update mouse vector for raycasting | |
| mouse.x = (event.clientX / window.innerWidth) * 2 - 1; | |
| mouse.y = -(event.clientY / window.innerHeight) * 2 + 1; | |
| } | |
| function onDocumentClick(event) { | |
| if (selectedObjectType === "None") return; // Don't place if 'None' selected | |
| // Determine which ground mesh(es) to check for intersection | |
| const groundCandidates = Object.values(groundMeshes); | |
| if (groundCandidates.length === 0) { | |
| console.warn("No ground exists to place objects on."); | |
| return; | |
| } | |
| raycaster.setFromCamera(mouse, camera); | |
| const intersects = raycaster.intersectObjects(groundCandidates); // Check all ground planes | |
| if (intersects.length > 0) { | |
| // Found an intersection point on a ground plane | |
| const intersectPoint = intersects[0].point; | |
| let newObjectToPlace = null; | |
| // Create the selected object type | |
| switch (selectedObjectType) { | |
| case "Simple House": newObjectToPlace = createSimpleHouse(); break; | |
| case "Tree": newObjectToPlace = createTree(); break; | |
| case "Rock": newObjectToPlace = createRock(); break; | |
| case "Fence Post": newObjectToPlace = createFencePost(); break; | |
| default: console.warn("Attempted to place unknown object type:", selectedObjectType); return; | |
| } | |
| if (newObjectToPlace) { | |
| // Position the new object at the click point | |
| newObjectToPlace.position.copy(intersectPoint); | |
| // Adjust Y position slightly so it's definitely above the ground plane | |
| newObjectToPlace.position.y = Math.max(0.01, newObjectToPlace.position.y); | |
| scene.add(newObjectToPlace); | |
| // Add to tracked lists | |
| allRenderedObjects[newObjectToPlace.userData.obj_id] = newObjectToPlace; | |
| newlyPlacedObjects.push(newObjectToPlace); | |
| // Save the updated unsaved state to sessionStorage | |
| saveUnsavedState(); | |
| console.log(`Placed new ${selectedObjectType}. Total rendered: ${Object.keys(allRenderedObjects).length}, Unsaved in session: ${newlyPlacedObjects.length}`); | |
| } | |
| } | |
| } | |
| function onKeyDown(event) { keysPressed[event.code] = true; } | |
| function onKeyUp(event) { keysPressed[event.code] = false; } | |
| // --- Functions called by Python --- | |
| function teleportPlayer(targetX, targetZ) { | |
| console.log(`JS teleportPlayer called: Target X=${targetX}, Z=${targetZ}`); | |
| if (playerMesh) { | |
| playerMesh.position.set(targetX, playerMesh.position.y, targetZ); // Set X and Z | |
| // Instantly snap camera to new player position | |
| const offset = new THREE.Vector3(0, 15, 20); // Camera offset | |
| const cameraTargetPosition = playerMesh.position.clone().add(offset); | |
| camera.position.copy(cameraTargetPosition); | |
| camera.lookAt(playerMesh.position); // Look at player | |
| console.log("Player teleported to:", playerMesh.position); | |
| } else { | |
| console.error("Player mesh not found for teleport."); | |
| } | |
| } | |
| function getSaveDataAndPosition() { | |
| if (!playerMesh) { | |
| console.error("Player mesh missing, cannot determine save plot."); | |
| return JSON.stringify({ playerPosition: {x:0,y:0,z:0}, objectsToSave: [] }); | |
| } | |
| const playerPos = { x: playerMesh.position.x, y: playerMesh.position.y, z: playerMesh.position.z }; | |
| const currentGridX = Math.floor(playerPos.x / plotWidth); | |
| const currentGridZ = Math.floor(playerPos.z / plotDepth); | |
| const minX = currentGridX * plotWidth, maxX = minX + plotWidth; | |
| const minZ = currentGridZ * plotDepth, maxZ = minZ + plotDepth; | |
| console.log(`getSaveData: Player in grid [${currentGridX}, ${currentGridZ}]. Filtering objects within X:[${minX.toFixed(1)},${maxX.toFixed(1)}), Z:[${minZ.toFixed(1)},${maxZ.toFixed(1)})`); | |
| // Filter ALL currently rendered objects to find those within these boundaries | |
| const objectsInPlot = Object.values(allRenderedObjects).filter(obj => | |
| obj.position.x >= minX && obj.position.x < maxX && | |
| obj.position.z >= minZ && obj.position.z < maxZ | |
| ).map(obj => { // Serialize the filtered objects | |
| if (!obj.userData || !obj.userData.type || !obj.userData.obj_id) { | |
| console.warn("Skipping object with missing user data during save serialization:", obj); | |
| return null; | |
| } | |
| const rotation = { _x: obj.rotation.x, _y: obj.rotation.y, _z: obj.rotation.z, _order: obj.rotation.order }; | |
| return { // Send WORLD coordinates | |
| obj_id: obj.userData.obj_id, type: obj.userData.type, | |
| position: { x: obj.position.x, y: obj.position.y, z: obj.position.z }, | |
| rotation: rotation | |
| }; | |
| }).filter(obj => obj !== null); // Filter out any nulls from warnings | |
| const payload = { | |
| playerPosition: playerPos, | |
| objectsToSave: objectsInPlot // Contains all relevant objects for the current plot | |
| }; | |
| console.log(`Prepared payload with ${objectsInPlot.length} objects for saving plot (${currentGridX},${currentGridZ}).`); | |
| return JSON.stringify(payload); | |
| } | |
| // --- Animation Loop --- | |
| function updatePlayerMovement() { | |
| if (!playerMesh) return; | |
| const moveDirection = new THREE.Vector3(0, 0, 0); | |
| if (keysPressed['KeyW'] || keysPressed['ArrowUp']) moveDirection.z -= 1; | |
| if (keysPressed['KeyS'] || keysPressed['ArrowDown']) moveDirection.z += 1; | |
| if (keysPressed['KeyA'] || keysPressed['ArrowLeft']) moveDirection.x -= 1; | |
| if (keysPressed['KeyD'] || keysPressed['ArrowRight']) moveDirection.x += 1; | |
| if (moveDirection.lengthSq() > 0) { | |
| const forward = new THREE.Vector3(); camera.getWorldDirection(forward); forward.y = 0; forward.normalize(); | |
| const right = new THREE.Vector3().crossVectors(camera.up, forward).normalize(); | |
| const worldMove = new THREE.Vector3(); | |
| worldMove.add(forward.multiplyScalar(-moveDirection.z)); // W/S moves along camera forward/backward | |
| worldMove.add(right.multiplyScalar(-moveDirection.x)); // A/D moves along camera right/left | |
| worldMove.normalize().multiplyScalar(playerSpeed); | |
| playerMesh.position.add(worldMove); | |
| playerMesh.position.y = Math.max(0.8, playerMesh.position.y); // Keep player base y near 0.8 | |
| checkAndExpandGround(); // Check if new ground needs to be created visually | |
| } | |
| } | |
| function checkAndExpandGround() { | |
| if (!playerMesh) return; | |
| const currentGridX = Math.floor(playerMesh.position.x / plotWidth); | |
| const currentGridZ = Math.floor(playerMesh.position.z / plotDepth); | |
| // Check immediate neighbors and one step further maybe? Check radius 1 for now. | |
| for (let dx = -1; dx <= 1; dx++) { | |
| for (let dz = -1; dz <= 1; dz++) { | |
| // if (dx === 0 && dz === 0) continue; // Also check current cell just in case | |
| const checkX = currentGridX + dx; | |
| const checkZ = currentGridZ + dz; | |
| const gridKey = `${checkX}_${checkZ}`; | |
| // If no ground mesh exists for this grid cell yet... | |
| if (!groundMeshes[gridKey]) { | |
| // Check if it corresponds to a SAVED plot (metadata from Python) | |
| const isSavedPlot = plotsMetadata.some(plot => plot.grid_x === checkX && plot.grid_z === checkZ); | |
| // If it's NOT a saved plot, create a visual placeholder | |
| if (!isSavedPlot) { | |
| createGroundPlane(checkX, checkZ, true); // true = is placeholder | |
| } | |
| // If it IS a saved plot but the mesh is missing (e.g. after clear), recreate it | |
| // This shouldn't happen often with current logic but adds robustness | |
| else { | |
| createGroundPlane(checkX, checkZ, false); | |
| } | |
| } | |
| } | |
| } | |
| } | |
| function updateCamera() { | |
| if (!playerMesh) return; | |
| const offset = new THREE.Vector3(0, 15, 20); // Fixed third-person offset | |
| const targetPosition = playerMesh.position.clone().add(offset); | |
| // Smoothly interpolate camera position | |
| camera.position.lerp(targetPosition, 0.08); | |
| // Always look at the player's current position | |
| camera.lookAt(playerMesh.position); | |
| } | |
| function onWindowResize() { | |
| camera.aspect = window.innerWidth / window.innerHeight; | |
| camera.updateProjectionMatrix(); | |
| renderer.setSize(window.innerWidth, window.innerHeight); | |
| } | |
| function animate() { | |
| requestAnimationFrame(animate); | |
| updatePlayerMovement(); // Includes ground expansion check | |
| updateCamera(); | |
| renderer.render(scene, camera); | |
| } | |
| // --- Start the application --- | |
| init(); | |
| </script> | |
| </body> | |
| </html> |