import { Vector3 } from '../math/Vector3.js';
import { BufferAttribute } from './BufferAttribute.js';
import { denormalize, normalize } from '../math/MathUtils.js';
const _vector = /*@__PURE__*/ new Vector3();
class InterleavedBufferAttribute {
constructor( interleavedBuffer, itemSize, offset, normalized = false ) {
this.isInterleavedBufferAttribute = true;
this.name = '';
this.data = interleavedBuffer;
this.itemSize = itemSize;
this.offset = offset;
this.normalized = normalized === true;
}
get count() {
return this.data.count;
}
get array() {
return this.data.array;
}
set needsUpdate( value ) {
this.data.needsUpdate = value;
}
applyMatrix4( m ) {
for ( let i = 0, l = this.data.count; i < l; i ++ ) {
_vector.fromBufferAttribute( this, i );
_vector.applyMatrix4( m );
this.setXYZ( i, _vector.x, _vector.y, _vector.z );
}
return this;
}
applyNormalMatrix( m ) {
for ( let i = 0, l = this.count; i < l; i ++ ) {
_vector.fromBufferAttribute( this, i );
_vector.applyNormalMatrix( m );
this.setXYZ( i, _vector.x, _vector.y, _vector.z );
}
return this;
}
transformDirection( m ) {
for ( let i = 0, l = this.count; i < l; i ++ ) {
_vector.fromBufferAttribute( this, i );
_vector.transformDirection( m );
this.setXYZ( i, _vector.x, _vector.y, _vector.z );
}
return this;
}
setX( index, x ) {
if ( this.normalized ) x = normalize( x, this.array );
this.data.array[ index * this.data.stride + this.offset ] = x;
return this;
}
setY( index, y ) {
if ( this.normalized ) y = normalize( y, this.array );
this.data.array[ index * this.data.stride + this.offset + 1 ] = y;
return this;
}
setZ( index, z ) {
if ( this.normalized ) z = normalize( z, this.array );
this.data.array[ index * this.data.stride + this.offset + 2 ] = z;
return this;
}
setW( index, w ) {
if ( this.normalized ) w = normalize( w, this.array );
this.data.array[ index * this.data.stride + this.offset + 3 ] = w;
return this;
}
getX( index ) {
let x = this.data.array[ index * this.data.stride + this.offset ];
if ( this.normalized ) x = denormalize( x, this.array );
return x;
}
getY( index ) {
let y = this.data.array[ index * this.data.stride + this.offset + 1 ];
if ( this.normalized ) y = denormalize( y, this.array );
return y;
}
getZ( index ) {
let z = this.data.array[ index * this.data.stride + this.offset + 2 ];
if ( this.normalized ) z = denormalize( z, this.array );
return z;
}
getW( index ) {
let w = this.data.array[ index * this.data.stride + this.offset + 3 ];
if ( this.normalized ) w = denormalize( w, this.array );
return w;
}
setXY( index, x, y ) {
index = index * this.data.stride + this.offset;
if ( this.normalized ) {
x = normalize( x, this.array );
y = normalize( y, this.array );
}
this.data.array[ index + 0 ] = x;
this.data.array[ index + 1 ] = y;
return this;
}
setXYZ( index, x, y, z ) {
index = index * this.data.stride + this.offset;
if ( this.normalized ) {
x = normalize( x, this.array );
y = normalize( y, this.array );
z = normalize( z, this.array );
}
this.data.array[ index + 0 ] = x;
this.data.array[ index + 1 ] = y;
this.data.array[ index + 2 ] = z;
return this;
}
setXYZW( index, x, y, z, w ) {
index = index * this.data.stride + this.offset;
if ( this.normalized ) {
x = normalize( x, this.array );
y = normalize( y, this.array );
z = normalize( z, this.array );
w = normalize( w, this.array );
}
this.data.array[ index + 0 ] = x;
this.data.array[ index + 1 ] = y;
this.data.array[ index + 2 ] = z;
this.data.array[ index + 3 ] = w;
return this;
}
clone( data ) {
if ( data === undefined ) {
console.log( 'THREE.InterleavedBufferAttribute.clone(): Cloning an interleaved buffer attribute will deinterleave buffer data.' );
const array = [];
for ( let i = 0; i < this.count; i ++ ) {
const index = i * this.data.stride + this.offset;
for ( let j = 0; j < this.itemSize; j ++ ) {
array.push( this.data.array[ index + j ] );
}
}
return new BufferAttribute( new this.array.constructor( array ), this.itemSize, this.normalized );
} else {
if ( data.interleavedBuffers === undefined ) {
data.interleavedBuffers = {};
}
if ( data.interleavedBuffers[ this.data.uuid ] === undefined ) {
data.interleavedBuffers[ this.data.uuid ] = this.data.clone( data );
}
return new InterleavedBufferAttribute( data.interleavedBuffers[ this.data.uuid ], this.itemSize, this.offset, this.normalized );
}
}
toJSON( data ) {
if ( data === undefined ) {
console.log( 'THREE.InterleavedBufferAttribute.toJSON(): Serializing an interleaved buffer attribute will deinterleave buffer data.' );
const array = [];
for ( let i = 0; i < this.count; i ++ ) {
const index = i * this.data.stride + this.offset;
for ( let j = 0; j < this.itemSize; j ++ ) {
array.push( this.data.array[ index + j ] );
}
}
// deinterleave data and save it as an ordinary buffer attribute for now
return {
itemSize: this.itemSize,
type: this.array.constructor.name,
array: array,
normalized: this.normalized
};
} else {
// save as true interleaved attribtue
if ( data.interleavedBuffers === undefined ) {
data.interleavedBuffers = {};
}
if ( data.interleavedBuffers[ this.data.uuid ] === undefined ) {
data.interleavedBuffers[ this.data.uuid ] = this.data.toJSON( data );
}
return {
isInterleavedBufferAttribute: true,
itemSize: this.itemSize,
data: this.data.uuid,
offset: this.offset,
normalized: this.normalized
};
}
}
}
export { InterleavedBufferAttribute };
