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Sleeping
File size: 3,075 Bytes
2b7aae2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 | import { Vector3 } from './Vector3.js';
import { Sphere } from './Sphere.js';
import { Plane } from './Plane.js';
const _sphere = /*@__PURE__*/ new Sphere();
const _vector = /*@__PURE__*/ new Vector3();
class Frustum {
constructor(p0 = new Plane(), p1 = new Plane(), p2 = new Plane(), p3 = new Plane(), p4 = new Plane(), p5 = new Plane()) {
this.planes = [p0, p1, p2, p3, p4, p5];
}
set(p0, p1, p2, p3, p4, p5) {
const planes = this.planes;
planes[0].copy(p0);
planes[1].copy(p1);
planes[2].copy(p2);
planes[3].copy(p3);
planes[4].copy(p4);
planes[5].copy(p5);
return this;
}
copy(frustum) {
const planes = this.planes;
for (let i = 0; i < 6; i++) {
planes[i].copy(frustum.planes[i]);
}
return this;
}
setFromProjectionMatrix(m) {
const planes = this.planes;
const me = m.elements;
const me0 = me[0],
me1 = me[1],
me2 = me[2],
me3 = me[3];
const me4 = me[4],
me5 = me[5],
me6 = me[6],
me7 = me[7];
const me8 = me[8],
me9 = me[9],
me10 = me[10],
me11 = me[11];
const me12 = me[12],
me13 = me[13],
me14 = me[14],
me15 = me[15];
planes[0].setComponents(me3 - me0, me7 - me4, me11 - me8, me15 - me12).normalize();
planes[1].setComponents(me3 + me0, me7 + me4, me11 + me8, me15 + me12).normalize();
planes[2].setComponents(me3 + me1, me7 + me5, me11 + me9, me15 + me13).normalize();
planes[3].setComponents(me3 - me1, me7 - me5, me11 - me9, me15 - me13).normalize();
planes[4].setComponents(me3 - me2, me7 - me6, me11 - me10, me15 - me14).normalize();
planes[5].setComponents(me3 + me2, me7 + me6, me11 + me10, me15 + me14).normalize();
return this;
}
intersectsObject(object) {
const geometry = object.geometry;
if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
_sphere.copy(geometry.boundingSphere).applyMatrix4(object.matrixWorld);
return this.intersectsSphere(_sphere);
}
intersectsSprite(sprite) {
_sphere.center.set(0, 0, 0);
_sphere.radius = 0.7071067811865476;
_sphere.applyMatrix4(sprite.matrixWorld);
return this.intersectsSphere(_sphere);
}
intersectsSphere(sphere) {
const planes = this.planes;
const center = sphere.center;
const negRadius = -sphere.radius;
for (let i = 0; i < 6; i++) {
const distance = planes[i].distanceToPoint(center);
if (distance < negRadius) {
return false;
}
}
return true;
}
intersectsBox(box) {
const planes = this.planes;
for (let i = 0; i < 6; i++) {
const plane = planes[i];
// corner at max distance
_vector.x = plane.normal.x > 0 ? box.max.x : box.min.x;
_vector.y = plane.normal.y > 0 ? box.max.y : box.min.y;
_vector.z = plane.normal.z > 0 ? box.max.z : box.min.z;
if (plane.distanceToPoint(_vector) < 0) {
return false;
}
}
return true;
}
containsPoint(point) {
const planes = this.planes;
for (let i = 0; i < 6; i++) {
if (planes[i].distanceToPoint(point) < 0) {
return false;
}
}
return true;
}
clone() {
return new this.constructor().copy(this);
}
}
export { Frustum };
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