You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
319 lines
7.9 KiB
319 lines
7.9 KiB
import * as THREE from 'three';
|
|
|
|
const vpTemp = new THREE.Vector4();
|
|
|
|
class ViewHelper extends THREE.Object3D {
|
|
|
|
constructor( editorCamera, dom ) {
|
|
|
|
super();
|
|
|
|
this.isViewHelper = true;
|
|
|
|
this.animating = false;
|
|
this.controls = null;
|
|
|
|
const color1 = new THREE.Color( '#ff3653' );
|
|
const color2 = new THREE.Color( '#8adb00' );
|
|
const color3 = new THREE.Color( '#2c8fff' );
|
|
|
|
const interactiveObjects = [];
|
|
const raycaster = new THREE.Raycaster();
|
|
const mouse = new THREE.Vector2();
|
|
const dummy = new THREE.Object3D();
|
|
|
|
const camera = new THREE.OrthographicCamera( - 2, 2, 2, - 2, 0, 4 );
|
|
camera.position.set( 0, 0, 2 );
|
|
|
|
const geometry = new THREE.BoxGeometry( 0.8, 0.05, 0.05 ).translate( 0.4, 0, 0 );
|
|
|
|
const xAxis = new THREE.Mesh( geometry, getAxisMaterial( color1 ) );
|
|
const yAxis = new THREE.Mesh( geometry, getAxisMaterial( color2 ) );
|
|
const zAxis = new THREE.Mesh( geometry, getAxisMaterial( color3 ) );
|
|
|
|
yAxis.rotation.z = Math.PI / 2;
|
|
zAxis.rotation.y = - Math.PI / 2;
|
|
|
|
this.add( xAxis );
|
|
this.add( zAxis );
|
|
this.add( yAxis );
|
|
|
|
const posXAxisHelper = new THREE.Sprite( getSpriteMaterial( color1, 'X' ) );
|
|
posXAxisHelper.userData.type = 'posX';
|
|
const posYAxisHelper = new THREE.Sprite( getSpriteMaterial( color2, 'Y' ) );
|
|
posYAxisHelper.userData.type = 'posY';
|
|
const posZAxisHelper = new THREE.Sprite( getSpriteMaterial( color3, 'Z' ) );
|
|
posZAxisHelper.userData.type = 'posZ';
|
|
const negXAxisHelper = new THREE.Sprite( getSpriteMaterial( color1 ) );
|
|
negXAxisHelper.userData.type = 'negX';
|
|
const negYAxisHelper = new THREE.Sprite( getSpriteMaterial( color2 ) );
|
|
negYAxisHelper.userData.type = 'negY';
|
|
const negZAxisHelper = new THREE.Sprite( getSpriteMaterial( color3 ) );
|
|
negZAxisHelper.userData.type = 'negZ';
|
|
|
|
posXAxisHelper.position.x = 1;
|
|
posYAxisHelper.position.y = 1;
|
|
posZAxisHelper.position.z = 1;
|
|
negXAxisHelper.position.x = - 1;
|
|
negXAxisHelper.scale.setScalar( 0.8 );
|
|
negYAxisHelper.position.y = - 1;
|
|
negYAxisHelper.scale.setScalar( 0.8 );
|
|
negZAxisHelper.position.z = - 1;
|
|
negZAxisHelper.scale.setScalar( 0.8 );
|
|
|
|
this.add( posXAxisHelper );
|
|
this.add( posYAxisHelper );
|
|
this.add( posZAxisHelper );
|
|
this.add( negXAxisHelper );
|
|
this.add( negYAxisHelper );
|
|
this.add( negZAxisHelper );
|
|
|
|
interactiveObjects.push( posXAxisHelper );
|
|
interactiveObjects.push( posYAxisHelper );
|
|
interactiveObjects.push( posZAxisHelper );
|
|
interactiveObjects.push( negXAxisHelper );
|
|
interactiveObjects.push( negYAxisHelper );
|
|
interactiveObjects.push( negZAxisHelper );
|
|
|
|
const point = new THREE.Vector3();
|
|
const dim = 128;
|
|
const turnRate = 2 * Math.PI; // turn rate in angles per second
|
|
|
|
this.render = function ( renderer ) {
|
|
|
|
this.quaternion.copy( editorCamera.quaternion ).invert();
|
|
this.updateMatrixWorld();
|
|
|
|
point.set( 0, 0, 1 );
|
|
point.applyQuaternion( editorCamera.quaternion );
|
|
|
|
if ( point.x >= 0 ) {
|
|
|
|
posXAxisHelper.material.opacity = 1;
|
|
negXAxisHelper.material.opacity = 0.5;
|
|
|
|
} else {
|
|
|
|
posXAxisHelper.material.opacity = 0.5;
|
|
negXAxisHelper.material.opacity = 1;
|
|
|
|
}
|
|
|
|
if ( point.y >= 0 ) {
|
|
|
|
posYAxisHelper.material.opacity = 1;
|
|
negYAxisHelper.material.opacity = 0.5;
|
|
|
|
} else {
|
|
|
|
posYAxisHelper.material.opacity = 0.5;
|
|
negYAxisHelper.material.opacity = 1;
|
|
|
|
}
|
|
|
|
if ( point.z >= 0 ) {
|
|
|
|
posZAxisHelper.material.opacity = 1;
|
|
negZAxisHelper.material.opacity = 0.5;
|
|
|
|
} else {
|
|
|
|
posZAxisHelper.material.opacity = 0.5;
|
|
negZAxisHelper.material.opacity = 1;
|
|
|
|
}
|
|
|
|
//
|
|
|
|
const x = dom.offsetWidth - dim;
|
|
|
|
renderer.clearDepth();
|
|
|
|
renderer.getViewport( vpTemp );
|
|
renderer.setViewport( x, 0, dim, dim );
|
|
|
|
renderer.render( this, camera );
|
|
|
|
renderer.setViewport( vpTemp.x, vpTemp.y, vpTemp.z, vpTemp.w );
|
|
|
|
};
|
|
|
|
const targetPosition = new THREE.Vector3();
|
|
const targetQuaternion = new THREE.Quaternion();
|
|
|
|
const q1 = new THREE.Quaternion();
|
|
const q2 = new THREE.Quaternion();
|
|
let radius = 0;
|
|
|
|
this.handleClick = function ( event ) {
|
|
|
|
if ( this.animating === true ) return false;
|
|
|
|
const rect = dom.getBoundingClientRect();
|
|
const offsetX = rect.left + ( dom.offsetWidth - dim );
|
|
const offsetY = rect.top + ( dom.offsetHeight - dim );
|
|
mouse.x = ( ( event.clientX - offsetX ) / ( rect.width - offsetX ) ) * 2 - 1;
|
|
mouse.y = - ( ( event.clientY - offsetY ) / ( rect.bottom - offsetY ) ) * 2 + 1;
|
|
|
|
raycaster.setFromCamera( mouse, camera );
|
|
|
|
const intersects = raycaster.intersectObjects( interactiveObjects );
|
|
|
|
if ( intersects.length > 0 ) {
|
|
|
|
const intersection = intersects[ 0 ];
|
|
const object = intersection.object;
|
|
|
|
prepareAnimationData( object, this.controls.center );
|
|
|
|
this.animating = true;
|
|
|
|
return true;
|
|
|
|
} else {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
};
|
|
|
|
this.update = function ( delta ) {
|
|
|
|
const step = delta * turnRate;
|
|
const focusPoint = this.controls.center;
|
|
|
|
// animate position by doing a slerp and then scaling the position on the unit sphere
|
|
|
|
q1.rotateTowards( q2, step );
|
|
editorCamera.position.set( 0, 0, 1 ).applyQuaternion( q1 ).multiplyScalar( radius ).add( focusPoint );
|
|
|
|
// animate orientation
|
|
|
|
editorCamera.quaternion.rotateTowards( targetQuaternion, step );
|
|
|
|
if ( q1.angleTo( q2 ) === 0 ) {
|
|
|
|
this.animating = false;
|
|
|
|
}
|
|
|
|
};
|
|
|
|
this.dispose = function () {
|
|
|
|
geometry.dispose();
|
|
|
|
xAxis.material.dispose();
|
|
yAxis.material.dispose();
|
|
zAxis.material.dispose();
|
|
|
|
posXAxisHelper.material.map.dispose();
|
|
posYAxisHelper.material.map.dispose();
|
|
posZAxisHelper.material.map.dispose();
|
|
negXAxisHelper.material.map.dispose();
|
|
negYAxisHelper.material.map.dispose();
|
|
negZAxisHelper.material.map.dispose();
|
|
|
|
posXAxisHelper.material.dispose();
|
|
posYAxisHelper.material.dispose();
|
|
posZAxisHelper.material.dispose();
|
|
negXAxisHelper.material.dispose();
|
|
negYAxisHelper.material.dispose();
|
|
negZAxisHelper.material.dispose();
|
|
|
|
};
|
|
|
|
function prepareAnimationData( object, focusPoint ) {
|
|
|
|
switch ( object.userData.type ) {
|
|
|
|
case 'posX':
|
|
targetPosition.set( 1, 0, 0 );
|
|
targetQuaternion.setFromEuler( new THREE.Euler( 0, Math.PI * 0.5, 0 ) );
|
|
break;
|
|
|
|
case 'posY':
|
|
targetPosition.set( 0, 1, 0 );
|
|
targetQuaternion.setFromEuler( new THREE.Euler( - Math.PI * 0.5, 0, 0 ) );
|
|
break;
|
|
|
|
case 'posZ':
|
|
targetPosition.set( 0, 0, 1 );
|
|
targetQuaternion.setFromEuler( new THREE.Euler() );
|
|
break;
|
|
|
|
case 'negX':
|
|
targetPosition.set( - 1, 0, 0 );
|
|
targetQuaternion.setFromEuler( new THREE.Euler( 0, - Math.PI * 0.5, 0 ) );
|
|
break;
|
|
|
|
case 'negY':
|
|
targetPosition.set( 0, - 1, 0 );
|
|
targetQuaternion.setFromEuler( new THREE.Euler( Math.PI * 0.5, 0, 0 ) );
|
|
break;
|
|
|
|
case 'negZ':
|
|
targetPosition.set( 0, 0, - 1 );
|
|
targetQuaternion.setFromEuler( new THREE.Euler( 0, Math.PI, 0 ) );
|
|
break;
|
|
|
|
default:
|
|
console.error( 'ViewHelper: Invalid axis.' );
|
|
|
|
}
|
|
|
|
//
|
|
|
|
radius = editorCamera.position.distanceTo( focusPoint );
|
|
targetPosition.multiplyScalar( radius ).add( focusPoint );
|
|
|
|
dummy.position.copy( focusPoint );
|
|
|
|
dummy.lookAt( editorCamera.position );
|
|
q1.copy( dummy.quaternion );
|
|
|
|
dummy.lookAt( targetPosition );
|
|
q2.copy( dummy.quaternion );
|
|
|
|
}
|
|
|
|
function getAxisMaterial( color ) {
|
|
|
|
return new THREE.MeshBasicMaterial( { color: color, toneMapped: false } );
|
|
|
|
}
|
|
|
|
function getSpriteMaterial( color, text = null ) {
|
|
|
|
const canvas = document.createElement( 'canvas' );
|
|
canvas.width = 64;
|
|
canvas.height = 64;
|
|
|
|
const context = canvas.getContext( '2d' );
|
|
context.beginPath();
|
|
context.arc( 32, 32, 16, 0, 2 * Math.PI );
|
|
context.closePath();
|
|
context.fillStyle = color.getStyle();
|
|
context.fill();
|
|
|
|
if ( text !== null ) {
|
|
|
|
context.font = '24px Arial';
|
|
context.textAlign = 'center';
|
|
context.fillStyle = '#000000';
|
|
context.fillText( text, 32, 41 );
|
|
|
|
}
|
|
|
|
const texture = new THREE.CanvasTexture( canvas );
|
|
|
|
return new THREE.SpriteMaterial( { map: texture, toneMapped: false } );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
export { ViewHelper };
|
|
|