( function () {
class MD2Character {
constructor() {
this.scale = 1;
this.animationFPS = 6;
this.root = new THREE.Object3D();
this.meshBody = null;
this.meshWeapon = null;
this.skinsBody = [];
this.skinsWeapon = [];
this.weapons = [];
this.activeAnimation = null;
this.mixer = null;
this.onLoadComplete = function () {};
this.loadCounter = 0;
}
loadParts( config ) {
const scope = this;
function createPart( geometry, skinMap ) {
const materialWireframe = new THREE.MeshLambertMaterial( {
color: 0xffaa00,
wireframe: true
} );
const materialTexture = new THREE.MeshLambertMaterial( {
color: 0xffffff,
wireframe: false,
map: skinMap
} ); //
const mesh = new THREE.Mesh( geometry, materialTexture );
mesh.rotation.y = - Math.PI / 2;
mesh.castShadow = true;
mesh.receiveShadow = true; //
mesh.materialTexture = materialTexture;
mesh.materialWireframe = materialWireframe;
return mesh;
}
function loadTextures( baseUrl, textureUrls ) {
const textureLoader = new THREE.TextureLoader();
const textures = [];
for ( let i = 0; i < textureUrls.length; i ++ ) {
textures[ i ] = textureLoader.load( baseUrl + textureUrls[ i ], checkLoadingComplete );
textures[ i ].mapping = THREE.UVMapping;
textures[ i ].name = textureUrls[ i ];
textures[ i ].encoding = THREE.sRGBEncoding;
}
return textures;
}
function checkLoadingComplete() {
scope.loadCounter -= 1;
if ( scope.loadCounter === 0 ) scope.onLoadComplete();
}
this.loadCounter = config.weapons.length * 2 + config.skins.length + 1;
const weaponsTextures = [];
for ( let i = 0; i < config.weapons.length; i ++ ) weaponsTextures[ i ] = config.weapons[ i ][ 1 ]; // SKINS
this.skinsBody = loadTextures( config.baseUrl + 'skins/', config.skins );
this.skinsWeapon = loadTextures( config.baseUrl + 'skins/', weaponsTextures ); // BODY
const loader = new THREE.MD2Loader();
loader.load( config.baseUrl + config.body, function ( geo ) {
const boundingBox = new THREE.Box3();
boundingBox.setFromBufferAttribute( geo.attributes.position );
scope.root.position.y = - scope.scale * boundingBox.min.y;
const mesh = createPart( geo, scope.skinsBody[ 0 ] );
mesh.scale.set( scope.scale, scope.scale, scope.scale );
scope.root.add( mesh );
scope.meshBody = mesh;
scope.meshBody.clipOffset = 0;
scope.activeAnimationClipName = mesh.geometry.animations[ 0 ].name;
scope.mixer = new THREE.AnimationMixer( mesh );
checkLoadingComplete();
} ); // WEAPONS
const generateCallback = function ( index, name ) {
return function ( geo ) {
const mesh = createPart( geo, scope.skinsWeapon[ index ] );
mesh.scale.set( scope.scale, scope.scale, scope.scale );
mesh.visible = false;
mesh.name = name;
scope.root.add( mesh );
scope.weapons[ index ] = mesh;
scope.meshWeapon = mesh;
checkLoadingComplete();
};
};
for ( let i = 0; i < config.weapons.length; i ++ ) {
loader.load( config.baseUrl + config.weapons[ i ][ 0 ], generateCallback( i, config.weapons[ i ][ 0 ] ) );
}
}
setPlaybackRate( rate ) {
if ( rate !== 0 ) {
this.mixer.timeScale = 1 / rate;
} else {
this.mixer.timeScale = 0;
}
}
setWireframe( wireframeEnabled ) {
if ( wireframeEnabled ) {
if ( this.meshBody ) this.meshBody.material = this.meshBody.materialWireframe;
if ( this.meshWeapon ) this.meshWeapon.material = this.meshWeapon.materialWireframe;
} else {
if ( this.meshBody ) this.meshBody.material = this.meshBody.materialTexture;
if ( this.meshWeapon ) this.meshWeapon.material = this.meshWeapon.materialTexture;
}
}
setSkin( index ) {
if ( this.meshBody && this.meshBody.material.wireframe === false ) {
this.meshBody.material.map = this.skinsBody[ index ];
}
}
setWeapon( index ) {
for ( let i = 0; i < this.weapons.length; i ++ ) this.weapons[ i ].visible = false;
const activeWeapon = this.weapons[ index ];
if ( activeWeapon ) {
activeWeapon.visible = true;
this.meshWeapon = activeWeapon;
this.syncWeaponAnimation();
}
}
setAnimation( clipName ) {
if ( this.meshBody ) {
if ( this.meshBody.activeAction ) {
this.meshBody.activeAction.stop();
this.meshBody.activeAction = null;
}
const action = this.mixer.clipAction( clipName, this.meshBody );
if ( action ) {
this.meshBody.activeAction = action.play();
}
}
this.activeClipName = clipName;
this.syncWeaponAnimation();
}
syncWeaponAnimation() {
const clipName = this.activeClipName;
if ( this.meshWeapon ) {
if ( this.meshWeapon.activeAction ) {
this.meshWeapon.activeAction.stop();
this.meshWeapon.activeAction = null;
}
const action = this.mixer.clipAction( clipName, this.meshWeapon );
if ( action ) {
this.meshWeapon.activeAction = action.syncWith( this.meshBody.activeAction ).play();
}
}
}
update( delta ) {
if ( this.mixer ) this.mixer.update( delta );
}
}
THREE.MD2Character = MD2Character;
} )();
