import { AnimationClip, BufferGeometry, FileLoader, Float32BufferAttribute, Loader, Vector3 } from '../../../build/three.module.js'; const _normalData = [ [ - 0.525731, 0.000000, 0.850651 ], [ - 0.442863, 0.238856, 0.864188 ], [ - 0.295242, 0.000000, 0.955423 ], [ - 0.309017, 0.500000, 0.809017 ], [ - 0.162460, 0.262866, 0.951056 ], [ 0.000000, 0.000000, 1.000000 ], [ 0.000000, 0.850651, 0.525731 ], [ - 0.147621, 0.716567, 0.681718 ], [ 0.147621, 0.716567, 0.681718 ], [ 0.000000, 0.525731, 0.850651 ], [ 0.309017, 0.500000, 0.809017 ], [ 0.525731, 0.000000, 0.850651 ], [ 0.295242, 0.000000, 0.955423 ], [ 0.442863, 0.238856, 0.864188 ], [ 0.162460, 0.262866, 0.951056 ], [ - 0.681718, 0.147621, 0.716567 ], [ - 0.809017, 0.309017, 0.500000 ], [ - 0.587785, 0.425325, 0.688191 ], [ - 0.850651, 0.525731, 0.000000 ], [ - 0.864188, 0.442863, 0.238856 ], [ - 0.716567, 0.681718, 0.147621 ], [ - 0.688191, 0.587785, 0.425325 ], [ - 0.500000, 0.809017, 0.309017 ], [ - 0.238856, 0.864188, 0.442863 ], [ - 0.425325, 0.688191, 0.587785 ], [ - 0.716567, 0.681718, - 0.147621 ], [ - 0.500000, 0.809017, - 0.309017 ], [ - 0.525731, 0.850651, 0.000000 ], [ 0.000000, 0.850651, - 0.525731 ], [ - 0.238856, 0.864188, - 0.442863 ], [ 0.000000, 0.955423, - 0.295242 ], [ - 0.262866, 0.951056, - 0.162460 ], [ 0.000000, 1.000000, 0.000000 ], [ 0.000000, 0.955423, 0.295242 ], [ - 0.262866, 0.951056, 0.162460 ], [ 0.238856, 0.864188, 0.442863 ], [ 0.262866, 0.951056, 0.162460 ], [ 0.500000, 0.809017, 0.309017 ], [ 0.238856, 0.864188, - 0.442863 ], [ 0.262866, 0.951056, - 0.162460 ], [ 0.500000, 0.809017, - 0.309017 ], [ 0.850651, 0.525731, 0.000000 ], [ 0.716567, 0.681718, 0.147621 ], [ 0.716567, 0.681718, - 0.147621 ], [ 0.525731, 0.850651, 0.000000 ], [ 0.425325, 0.688191, 0.587785 ], [ 0.864188, 0.442863, 0.238856 ], [ 0.688191, 0.587785, 0.425325 ], [ 0.809017, 0.309017, 0.500000 ], [ 0.681718, 0.147621, 0.716567 ], [ 0.587785, 0.425325, 0.688191 ], [ 0.955423, 0.295242, 0.000000 ], [ 1.000000, 0.000000, 0.000000 ], [ 0.951056, 0.162460, 0.262866 ], [ 0.850651, - 0.525731, 0.000000 ], [ 0.955423, - 0.295242, 0.000000 ], [ 0.864188, - 0.442863, 0.238856 ], [ 0.951056, - 0.162460, 0.262866 ], [ 0.809017, - 0.309017, 0.500000 ], [ 0.681718, - 0.147621, 0.716567 ], [ 0.850651, 0.000000, 0.525731 ], [ 0.864188, 0.442863, - 0.238856 ], [ 0.809017, 0.309017, - 0.500000 ], [ 0.951056, 0.162460, - 0.262866 ], [ 0.525731, 0.000000, - 0.850651 ], [ 0.681718, 0.147621, - 0.716567 ], [ 0.681718, - 0.147621, - 0.716567 ], [ 0.850651, 0.000000, - 0.525731 ], [ 0.809017, - 0.309017, - 0.500000 ], [ 0.864188, - 0.442863, - 0.238856 ], [ 0.951056, - 0.162460, - 0.262866 ], [ 0.147621, 0.716567, - 0.681718 ], [ 0.309017, 0.500000, - 0.809017 ], [ 0.425325, 0.688191, - 0.587785 ], [ 0.442863, 0.238856, - 0.864188 ], [ 0.587785, 0.425325, - 0.688191 ], [ 0.688191, 0.587785, - 0.425325 ], [ - 0.147621, 0.716567, - 0.681718 ], [ - 0.309017, 0.500000, - 0.809017 ], [ 0.000000, 0.525731, - 0.850651 ], [ - 0.525731, 0.000000, - 0.850651 ], [ - 0.442863, 0.238856, - 0.864188 ], [ - 0.295242, 0.000000, - 0.955423 ], [ - 0.162460, 0.262866, - 0.951056 ], [ 0.000000, 0.000000, - 1.000000 ], [ 0.295242, 0.000000, - 0.955423 ], [ 0.162460, 0.262866, - 0.951056 ], [ - 0.442863, - 0.238856, - 0.864188 ], [ - 0.309017, - 0.500000, - 0.809017 ], [ - 0.162460, - 0.262866, - 0.951056 ], [ 0.000000, - 0.850651, - 0.525731 ], [ - 0.147621, - 0.716567, - 0.681718 ], [ 0.147621, - 0.716567, - 0.681718 ], [ 0.000000, - 0.525731, - 0.850651 ], [ 0.309017, - 0.500000, - 0.809017 ], [ 0.442863, - 0.238856, - 0.864188 ], [ 0.162460, - 0.262866, - 0.951056 ], [ 0.238856, - 0.864188, - 0.442863 ], [ 0.500000, - 0.809017, - 0.309017 ], [ 0.425325, - 0.688191, - 0.587785 ], [ 0.716567, - 0.681718, - 0.147621 ], [ 0.688191, - 0.587785, - 0.425325 ], [ 0.587785, - 0.425325, - 0.688191 ], [ 0.000000, - 0.955423, - 0.295242 ], [ 0.000000, - 1.000000, 0.000000 ], [ 0.262866, - 0.951056, - 0.162460 ], [ 0.000000, - 0.850651, 0.525731 ], [ 0.000000, - 0.955423, 0.295242 ], [ 0.238856, - 0.864188, 0.442863 ], [ 0.262866, - 0.951056, 0.162460 ], [ 0.500000, - 0.809017, 0.309017 ], [ 0.716567, - 0.681718, 0.147621 ], [ 0.525731, - 0.850651, 0.000000 ], [ - 0.238856, - 0.864188, - 0.442863 ], [ - 0.500000, - 0.809017, - 0.309017 ], [ - 0.262866, - 0.951056, - 0.162460 ], [ - 0.850651, - 0.525731, 0.000000 ], [ - 0.716567, - 0.681718, - 0.147621 ], [ - 0.716567, - 0.681718, 0.147621 ], [ - 0.525731, - 0.850651, 0.000000 ], [ - 0.500000, - 0.809017, 0.309017 ], [ - 0.238856, - 0.864188, 0.442863 ], [ - 0.262866, - 0.951056, 0.162460 ], [ - 0.864188, - 0.442863, 0.238856 ], [ - 0.809017, - 0.309017, 0.500000 ], [ - 0.688191, - 0.587785, 0.425325 ], [ - 0.681718, - 0.147621, 0.716567 ], [ - 0.442863, - 0.238856, 0.864188 ], [ - 0.587785, - 0.425325, 0.688191 ], [ - 0.309017, - 0.500000, 0.809017 ], [ - 0.147621, - 0.716567, 0.681718 ], [ - 0.425325, - 0.688191, 0.587785 ], [ - 0.162460, - 0.262866, 0.951056 ], [ 0.442863, - 0.238856, 0.864188 ], [ 0.162460, - 0.262866, 0.951056 ], [ 0.309017, - 0.500000, 0.809017 ], [ 0.147621, - 0.716567, 0.681718 ], [ 0.000000, - 0.525731, 0.850651 ], [ 0.425325, - 0.688191, 0.587785 ], [ 0.587785, - 0.425325, 0.688191 ], [ 0.688191, - 0.587785, 0.425325 ], [ - 0.955423, 0.295242, 0.000000 ], [ - 0.951056, 0.162460, 0.262866 ], [ - 1.000000, 0.000000, 0.000000 ], [ - 0.850651, 0.000000, 0.525731 ], [ - 0.955423, - 0.295242, 0.000000 ], [ - 0.951056, - 0.162460, 0.262866 ], [ - 0.864188, 0.442863, - 0.238856 ], [ - 0.951056, 0.162460, - 0.262866 ], [ - 0.809017, 0.309017, - 0.500000 ], [ - 0.864188, - 0.442863, - 0.238856 ], [ - 0.951056, - 0.162460, - 0.262866 ], [ - 0.809017, - 0.309017, - 0.500000 ], [ - 0.681718, 0.147621, - 0.716567 ], [ - 0.681718, - 0.147621, - 0.716567 ], [ - 0.850651, 0.000000, - 0.525731 ], [ - 0.688191, 0.587785, - 0.425325 ], [ - 0.587785, 0.425325, - 0.688191 ], [ - 0.425325, 0.688191, - 0.587785 ], [ - 0.425325, - 0.688191, - 0.587785 ], [ - 0.587785, - 0.425325, - 0.688191 ], [ - 0.688191, - 0.587785, - 0.425325 ] ]; class MD2Loader extends Loader { constructor( manager ) { super( manager ); } load( url, onLoad, onProgress, onError ) { const scope = this; const loader = new FileLoader( scope.manager ); loader.setPath( scope.path ); loader.setResponseType( 'arraybuffer' ); loader.setRequestHeader( scope.requestHeader ); loader.setWithCredentials( scope.withCredentials ); loader.load( url, function ( buffer ) { try { onLoad( scope.parse( buffer ) ); } catch ( e ) { if ( onError ) { onError( e ); } else { console.error( e ); } scope.manager.itemError( url ); } }, onProgress, onError ); } parse( buffer ) { const data = new DataView( buffer ); // http://tfc.duke.free.fr/coding/md2-specs-en.html const header = {}; const headerNames = [ 'ident', 'version', 'skinwidth', 'skinheight', 'framesize', 'num_skins', 'num_vertices', 'num_st', 'num_tris', 'num_glcmds', 'num_frames', 'offset_skins', 'offset_st', 'offset_tris', 'offset_frames', 'offset_glcmds', 'offset_end' ]; for ( let i = 0; i < headerNames.length; i ++ ) { header[ headerNames[ i ] ] = data.getInt32( i * 4, true ); } if ( header.ident !== 844121161 || header.version !== 8 ) { console.error( 'Not a valid MD2 file' ); return; } if ( header.offset_end !== data.byteLength ) { console.error( 'Corrupted MD2 file' ); return; } // const geometry = new BufferGeometry(); // uvs const uvsTemp = []; let offset = header.offset_st; for ( let i = 0, l = header.num_st; i < l; i ++ ) { const u = data.getInt16( offset + 0, true ); const v = data.getInt16( offset + 2, true ); uvsTemp.push( u / header.skinwidth, 1 - ( v / header.skinheight ) ); offset += 4; } // triangles offset = header.offset_tris; const vertexIndices = []; const uvIndices = []; for ( let i = 0, l = header.num_tris; i < l; i ++ ) { vertexIndices.push( data.getUint16( offset + 0, true ), data.getUint16( offset + 2, true ), data.getUint16( offset + 4, true ) ); uvIndices.push( data.getUint16( offset + 6, true ), data.getUint16( offset + 8, true ), data.getUint16( offset + 10, true ) ); offset += 12; } // frames const translation = new Vector3(); const scale = new Vector3(); const frames = []; offset = header.offset_frames; for ( let i = 0, l = header.num_frames; i < l; i ++ ) { scale.set( data.getFloat32( offset + 0, true ), data.getFloat32( offset + 4, true ), data.getFloat32( offset + 8, true ) ); translation.set( data.getFloat32( offset + 12, true ), data.getFloat32( offset + 16, true ), data.getFloat32( offset + 20, true ) ); offset += 24; const string = []; for ( let j = 0; j < 16; j ++ ) { const character = data.getUint8( offset + j, true ); if ( character === 0 ) break; string[ j ] = character; } const frame = { name: String.fromCharCode.apply( null, string ), vertices: [], normals: [] }; offset += 16; for ( let j = 0; j < header.num_vertices; j ++ ) { let x = data.getUint8( offset ++, true ); let y = data.getUint8( offset ++, true ); let z = data.getUint8( offset ++, true ); const n = _normalData[ data.getUint8( offset ++, true ) ]; x = x * scale.x + translation.x; y = y * scale.y + translation.y; z = z * scale.z + translation.z; frame.vertices.push( x, z, y ); // convert to Y-up frame.normals.push( n[ 0 ], n[ 2 ], n[ 1 ] ); // convert to Y-up } frames.push( frame ); } // static const positions = []; const normals = []; const uvs = []; const verticesTemp = frames[ 0 ].vertices; const normalsTemp = frames[ 0 ].normals; for ( let i = 0, l = vertexIndices.length; i < l; i ++ ) { const vertexIndex = vertexIndices[ i ]; let stride = vertexIndex * 3; // const x = verticesTemp[ stride ]; const y = verticesTemp[ stride + 1 ]; const z = verticesTemp[ stride + 2 ]; positions.push( x, y, z ); // const nx = normalsTemp[ stride ]; const ny = normalsTemp[ stride + 1 ]; const nz = normalsTemp[ stride + 2 ]; normals.push( nx, ny, nz ); // const uvIndex = uvIndices[ i ]; stride = uvIndex * 2; const u = uvsTemp[ stride ]; const v = uvsTemp[ stride + 1 ]; uvs.push( u, v ); } geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) ); geometry.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); geometry.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); // animation const morphPositions = []; const morphNormals = []; for ( let i = 0, l = frames.length; i < l; i ++ ) { const frame = frames[ i ]; const attributeName = frame.name; if ( frame.vertices.length > 0 ) { const positions = []; for ( let j = 0, jl = vertexIndices.length; j < jl; j ++ ) { const vertexIndex = vertexIndices[ j ]; const stride = vertexIndex * 3; const x = frame.vertices[ stride ]; const y = frame.vertices[ stride + 1 ]; const z = frame.vertices[ stride + 2 ]; positions.push( x, y, z ); } const positionAttribute = new Float32BufferAttribute( positions, 3 ); positionAttribute.name = attributeName; morphPositions.push( positionAttribute ); } if ( frame.normals.length > 0 ) { const normals = []; for ( let j = 0, jl = vertexIndices.length; j < jl; j ++ ) { const vertexIndex = vertexIndices[ j ]; const stride = vertexIndex * 3; const nx = frame.normals[ stride ]; const ny = frame.normals[ stride + 1 ]; const nz = frame.normals[ stride + 2 ]; normals.push( nx, ny, nz ); } const normalAttribute = new Float32BufferAttribute( normals, 3 ); normalAttribute.name = attributeName; morphNormals.push( normalAttribute ); } } geometry.morphAttributes.position = morphPositions; geometry.morphAttributes.normal = morphNormals; geometry.morphTargetsRelative = false; geometry.animations = AnimationClip.CreateClipsFromMorphTargetSequences( frames, 10 ); return geometry; } } export { MD2Loader };