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improve draggable cubes example #8758

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Merged
merged 1 commit into from
Apr 29, 2016
Merged

improve draggable cubes example #8758

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32 changes: 10 additions & 22 deletions examples/webgl_interactive_draggablecubes.html
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Original file line number Diff line number Diff line change
Expand Up @@ -25,11 +25,12 @@

var container, stats;
var camera, controls, scene, renderer;
var objects = [], plane;

var objects = [];
var plane = new THREE.Plane();
var raycaster = new THREE.Raycaster();
var mouse = new THREE.Vector2(),
offset = new THREE.Vector3(),
intersection = new THREE.Vector3(),
INTERSECTED, SELECTED;

init();
Expand Down Expand Up @@ -95,12 +96,6 @@

}

plane = new THREE.Mesh(
new THREE.PlaneBufferGeometry( 2000, 2000, 8, 8 ),
new THREE.MeshBasicMaterial( { visible: false } )
);
scene.add( plane );

renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setClearColor( 0xf0f0f0 );
renderer.setPixelRatio( window.devicePixelRatio );
Expand Down Expand Up @@ -149,17 +144,13 @@
mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;

//

raycaster.setFromCamera( mouse, camera );

if ( SELECTED ) {

var intersects = raycaster.intersectObject( plane );
if ( raycaster.ray.intersectPlane( plane, intersection ) ) {

if ( intersects.length > 0 ) {

SELECTED.position.copy( intersects[ 0 ].point.sub( offset ) );
SELECTED.position.copy( intersection.sub( offset ) );

}

Expand All @@ -178,8 +169,9 @@
INTERSECTED = intersects[ 0 ].object;
INTERSECTED.currentHex = INTERSECTED.material.color.getHex();

plane.position.copy( INTERSECTED.position );
plane.lookAt( camera.position );
plane.setFromNormalAndCoplanarPoint(
camera.getWorldDirection( plane.normal ),
INTERSECTED.position );

}

Expand Down Expand Up @@ -211,11 +203,9 @@

SELECTED = intersects[ 0 ].object;

var intersects = raycaster.intersectObject( plane );

if ( intersects.length > 0 ) {
if ( raycaster.ray.intersectPlane( plane, intersection ) ) {

offset.copy( intersects[ 0 ].point ).sub( plane.position );
offset.copy( intersection ).sub( SELECTED.position );

}

Expand All @@ -233,8 +223,6 @@

if ( INTERSECTED ) {

plane.position.copy( INTERSECTED.position );

SELECTED = null;

}
Expand Down