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Right, I'm new. Hello! This might help someone. It's an example of drag and drop, collision detection and physics (a drag puzzle game). I sketched it pretty quickly, and I'm sorry it's not commented. Bit messy but you should be able to grab the helpful bits. I had a nightmare putting this together to be honest, but on the 5th evening this is the result, so I'm pleased. I'll update it soon to make things clearer. SHARE YOURS! <html xmlns="http://www.w3.org/1999/xhtml"><head> <script src="hand.js"></script> <script type="text/javascript" src="cannon.js"></script> <script src="babylon.js"></script> <script src="jquery.min.js"></script> <script type="text/javascript" src="oimo.js"></script> <style> html, body { width: 100%; height: 100%; margin: 0; padding: 0; } #renderCanvas { width: 100%; height: 100%; touch-action: none; } .debugDiv{ display:nones; } </style> </head> <body> <div class="debugDiv"></div> <canvas id="renderCanvas"></canvas> <script> var boxes = new Array(); var materials = new Array(); var box1, box2, blueBox, camera, scene, ground; var canvas = document.querySelector("#renderCanvas"); var engine = new BABYLON.Engine(canvas, true); var mazeSize = 3; var createScene = function(){ scene = new BABYLON.Scene(engine); var canvas = engine.getRenderingCanvas(); var startingPoint; var currentMesh; var camera = new BABYLON.ArcRotateCamera("Camera", 0, 0, 0, new BABYLON.Vector3(0, 5, 0), scene); camera.setPosition(new BABYLON.Vector3(200,150, 10)); scene.clearColor = new BABYLON.Color3(0, 0, 0); camera.attachControl(canvas, true); scene.enablePhysics(new BABYLON.Vector3(0, -500, 0), new BABYLON.OimoJSPlugin()); ground = BABYLON.Mesh.CreateGround("ground", 1000, 1000, 1, scene, false); ground.setPhysicsState(BABYLON.PhysicsEngine.BoxImpostor, {mass:0, friction:0.5, restitution: 1}); ground.visibility = 0; createWalls(); createBoxes(); var getGroundPosition = function(){ var pickinfo = scene.pick(scene.pointerX, scene.pointerY, function (mesh){return mesh == ground;}); if(pickinfo.hit){return pickinfo.pickedPoint;} return null; } var onPointerDown = function (evt) { if (evt.button !== 0){return;} var pickInfo = scene.pick(scene.pointerX, scene.pointerY, function(mesh){ return mesh !== ground;}); if(pickInfo.hit){ currentMesh = pickInfo.pickedMesh; startingPoint = getGroundPosition(evt); if(startingPoint){setTimeout(function(){camera.detachControl(canvas);}, 0);} } } var onPointerUp = function(){if(startingPoint){camera.attachControl(canvas, true); startingPoint = null; return;}} var onPointerMove = function(evt){ if(!startingPoint){return;} var current = getGroundPosition(evt); if(!current){return;} var diff = current.subtract(startingPoint); if(currentMesh.draggable){return;} currentMesh.moveWithCollisions(diff); startingPoint = current; currentMesh.updatePhysicsBodyPosition(); } $(canvas).bind("pointerdown", onPointerDown).bind("pointerup", onPointerUp).bind("pointermove", onPointerMove); scene.onDispose = function(){$(canvas).unbind("pointerdown", onPointerDown).bind("pointerup", onPointerUp).bind("pointermove", onPointerMove);} return scene; }; function createBoxes(){ matUnit = (1/mazeSize); blocks = new Array(); for(x=0;x<mazeSize;x++){ for(y=0;y<3;y++){ //materials materialsIndex = materials.length; materials[materialsIndex] = new BABYLON.StandardMaterial("texture1", scene); var m = materials[materialsIndex]; m.id = materialsIndex; m.diffuseTexture = new BABYLON.Texture("profilePic.jpg", scene); m.diffuseTexture.uScale = 1/mazeSize; m.diffuseTexture.vScale = 1/mazeSize; m.diffuseTexture.uOffset = matUnit*(-(x+1)); m.diffuseTexture.vOffset = matUnit*(0+y); boxIndex = boxes.length; boxes.push(BABYLON.Mesh.CreateBox("red", 49.9, scene)); var b = boxes[boxIndex]; b.id = materialsIndex; b.position.y = 25.1; b.position.x = 50-(50*y); b.position.z = 50-(50*x); b.setPhysicsState(BABYLON.PhysicsEngine.BoxImpostor, {mass:0.1, friction:0.1, restitution:0.1}); b.checkCollisions = true; b.ellipsoid = new BABYLON.Vector3(24, 24, 24); coords = [Math.round(b.position.x),Math.round(b.position.z)]; m.coords = coords; b.coords = coords; if(x == mazeSize-1 && y == mazeSize-2){ coords = [Math.round(b.position.x),Math.round(b.position.z)]; m.coords = coords; b.coords = coords; break; } } } swapArrayElements(boxes, 5, 7); swapArrayElements(boxes, 4, 7); //swapArrayElements(boxes, 3, 7); //shuffle(boxes); for(x=0;x<materials.length;x++){boxes[x].material = materials[x];} } function createWalls(){ wallScaleAxis = new Array("x","z","x","z"); wallDimsArr = new Array([25*mazeSize, 25, 0],[0,25,25*mazeSize],[0-(25*mazeSize),25,0],[0,25,0-(25*mazeSize)]); wallsArr = new Array(); lightsArr = new Array(); for(x=0;x<4;x++){ lightsArr[x] = new BABYLON.PointLight("omni", new BABYLON.Vector3(wallDimsArr[x][0]*2, 150, wallDimsArr[x][2]*2), scene); lightsArr[x].intensity = 0.3; wallsArr[x] = BABYLON.Mesh.CreateBox("ground", 50*mazeSize, scene); var w = wallsArr[x]; w.scaling[wallScaleAxis[x]] = 0.001; w.scaling.y = 0.5; w.position = new BABYLON.Vector3(wallDimsArr[x][0], wallDimsArr[x][1], wallDimsArr[x][2]); w.setPhysicsState(BABYLON.PhysicsEngine.BoxImpostor, {mass:0}); w.checkCollisions = true; w.draggable = true; w.ellipsoid = new BABYLON.Vector3(25*mazeSize, 25, 0.01); w.showBoundingBox = false; w.visibility = 0; } } var scene = createScene(); engine.runRenderLoop(function(){scene.render();}); $(window).bind("resize", function(){engine.resize();}); function swapArrayElements(arr, indexA, indexB){ var temp = arr[indexA]; arr[indexA] = arr[indexB]; arr[indexB] = temp; return arr; }; function shuffle(array) { var currentIndex = array.length, temporaryValue, randomIndex; // While there remain elements to shuffle... while (0 !== currentIndex) { // Pick a remaining element... randomIndex = Math.floor(Math.random() * currentIndex); currentIndex -= 1; // And swap it with the current element. temporaryValue = array[currentIndex]; array[currentIndex] = array[randomIndex]; array[randomIndex] = temporaryValue; } return array; } doer = 0; function showBoxPos(){ doer++; $(".debugDiv").html(doer) correct = 1; for(x=0;x<boxes.length;x++){ boxes[x].coords = [Math.round(boxes[x].position.x),Math.round(boxes[x].position.z)]; if(!(boxes[x].coords.toString() == materials[x].coords.toString())){correct++; break;}; } for(x=0;x<4;x++){ if(correct <= 1){ for(y=0;y<boxes.length;y++){ boxes[y].setPhysicsState(BABYLON.PhysicsEngine.BoxImpostor, {mass:-10}); boxes[y].updatePhysicsBodyPosition(); boxes[y].draggable = true; } clearTimeout(boxTimer); ground.setPhysicsState(BABYLON.PhysicsEngine.BoxImpostor, {mass:1, friction:0.5, restitution: 1}); break; } } } var boxTimer = setInterval(showBoxPos, 1) </script> </body> </html>
