3d-interface/server/geo/MeshContainer.js

384 lines
9.4 KiB
JavaScript

var Log = require('../lib/NodeLog.js');
var L3D = require('../../static/js/l3d.min.js');
var THREE = require('three');
function clone(vec) {
return {x : vec.x, y : vec.y, z : vec.z};
}
function rotation(vec1, x, y, z) {
var cos = Math.cos(z);
var sin = Math.sin(z);
var newVec = {x:0, y:0, z:0};
oldVec = clone(vec1);
newVec.x = cos * oldVec.x - sin * oldVec.y;
newVec.y = sin * oldVec.x + cos * oldVec.y;
newVec.z = oldVec.z;
oldVec = clone(newVec);
cos = Math.cos(y);
sin = Math.sin(y);
newVec.x = cos * oldVec.x + sin * oldVec.z;
newVec.y = oldVec.y;
newVec.z = - sin * oldVec.x + cos * oldVec.z;
cos = Math.cos(x);
sin = Math.sin(x);
oldVec = clone(newVec);
newVec.x = oldVec.x;
newVec.y = oldVec.y * cos - oldVec.z * sin;
newVec.z = oldVec.y * sin + oldVec.z * cos;
return clone(newVec);
}
function applyTransformation(vector, transfo) {
var ret = rotation(vector, transfo.rotation.x, transfo.rotation.y, transfo.rotation.z);
var scale = transfo.scale || 1;
return {
x: (ret.x + transfo.translation.x) * scale,
y: (ret.y + transfo.translation.y) * scale,
z: (ret.z + transfo.translation.z) * scale
};
}
/**
* Represents a mesh. All meshes are loaded once in geo.availableMesh to avoid
* loading at each mesh request
* @constructor
* @memberOf geo
*/
geo.MeshContainer = function(path, transfo, callback) {
if (callback === undefined && typeof transfo === 'function') {
callback = transfo;
transfo = {translation: {x:0,y:0,z:0}, rotation: {x:0,y:0,z:0}};
}
if (transfo === undefined) {
transfo = {translation: {x:0,y:0,z:0}, rotation: {x:0,y:0,z:0}};
}
/**
* array of each part of the mesh
* @type {geo.Mesh[]}
*/
this.meshes = [];
/**
* array of the vertices of the meshes (all merged)
* @type {geo.Vertex[]}
*/
this.vertices = [];
/**
* array of the faces of the meshes (all merged)
* @type {geo.Face[]}
*/
this.faces = [];
/**
* array of the normals of the meshes (all merged)
* @type {geo.Normal[]}
*/
this.normals = [];
/**
* array of the texture coordinates (all merged)
* @type {geo.TexCoord[]}
*/
this.texCoords = [];
/**
* Number of elements to stream in the mesh
* @type {Number}
*/
this.numberOfFaces = 0;
this.transfo = transfo;
this.callback = callback;
if (path !== undefined) {
this.loadFromFile('../' + path);
}
};
/**
* Loads a obj file
* @param {string} path the path to the file
*/
geo.MeshContainer.prototype.loadFromFile = function(path) {
var self = this;
fs.readFile(path, {encoding: 'utf-8'}, function(err, data) {
var currentMesh;
// Get lines from file
var lines = data.toString('utf-8').split("\n");
// For each line
for (var i = 0; i < lines.length; i++) {
var line = lines[i];
if (line[0] === 'v') {
if (line[1] === 't') {
// Texture coord
var texCoord = new geo.TexCoord(line);
texCoord.index = self.texCoords.length;
self.texCoords.push(texCoord);
} else if (line[1] === 'n') {
var normal = new geo.Normal(line);
normal.index = self.normals.length;
self.normals.push(normal);
} else {
// Just a simple vertex
var vertex = new geo.Vertex(line);
var vertexTransformed = applyTransformation(vertex, self.transfo);
vertex.x = vertexTransformed.x;
vertex.y = vertexTransformed.y;
vertex.z = vertexTransformed.z;
vertex.index = self.vertices.length;
self.vertices.push(vertex);
}
} else if (line[0] === 'f') {
self.numberOfFaces++;
// Create mesh if it doesn't exist
if (currentMesh === undefined) {
currentMesh = new geo.Mesh();
self.meshes.push(currentMesh);
}
// Create faces (two if Face4)
var faces = currentMesh.addFaces(line);
faces[0].index = self.faces.length;
faces[0].meshIndex = self.meshes.length - 1;
self.faces.push(faces[0]);
if (faces.length === 2) {
self.numberOfFaces++;
faces[1].index = self.faces.length;
faces[1].meshIndex = self.meshes.length - 1;
self.faces.push(faces[1]);
}
} else if (line[0] === 'u') {
// usemtl
// If a current mesh exists, finish it
// Create a new mesh
currentMesh = new geo.Mesh();
self.meshes.push(currentMesh);
currentMesh.material = (new geo.Material(line)).name;
// console.log(currentMesh.material);
}
}
if (typeof self.callback === 'function') {
self.callback();
}
});
};
function trySetLoaded() {
for (var name in availableMeshNames) {
if (availableMeshNames[name].done === false) {
return;
}
}
Log.ready("Meshes loaded in " + (Date.now() - start) + 'ms');
}
var availableMeshNames = {
'/static/data/castle/princess peaches castle (outside).obj': {
done: false,
recommendations : L3D.createPeachRecommendations(1134, 768)
},
'/static/data/mountain/coocoolmountain.obj': {
done: false,
recommendations : L3D.createMountainRecommendations(1134, 768)
},
'/static/data/mountain/coocoolmountain_sub.obj': {
done: false,
recommendations : L3D.createMountainRecommendations(1134, 768)
},
'/static/data/whomp/Whomps Fortress.obj': {
done: false,
transfo: {
rotation: {
x: -Math.PI / 2,
y: 0,
z: Math.PI / 2
},
translation: {
x: 0,
y: 0,
z: 0
},
scale: 0.1
},
recommendations : L3D.createWhompRecommendations(1134, 768)
},
'/static/data/whomp/Whomps Fortress_sub.obj': {
done: false,
transfo: {
rotation: {
x: -Math.PI / 2,
y: 0,
z: Math.PI / 2
},
translation: {
x: 0,
y: 0,
z: 0
},
scale: 0.1
},
recommendations : L3D.createWhompRecommendations(1134, 768)
},
'/static/data/bobomb/bobomb battlefeild.obj': {
done: false,
transfo: {
rotation: {
x: 0,
y: Math.PI - 0.27,
z: 0
},
translation: {
x: 0,
y: 0,
z: 0
}
},
recommendations : L3D.createBobombRecommendations(1134, 768)
},
'/static/data/bobomb/bobomb battlefeild_sub.obj': {
done: false,
transfo: {
rotation: {
x: 0,
y: Math.PI - 0.27,
z: 0
},
translation: {
x: 0,
y: 0,
z: 0
}
},
recommendations : L3D.createBobombRecommendations(1134, 768)
},
'/static/data/sponza/sponza.obj': {
done: false,
recommendations : L3D.createSponzaRecommendations(1134,768)
}
};
for (var i = 1; i < 26; i++) {
availableMeshNames['/static/data/spheres/' + i + '.obj'] = { done: false};
}
geo.availableMeshes = {};
var start = Date.now();
function pushMesh(name) {
geo.availableMeshes[name] = new geo.MeshContainer(
name.substring(1, name.length),
availableMeshNames[name].transfo,
function() {
geo.availableMeshes[name].recommendations = [];
if (availableMeshNames[name].recommendations !== undefined) {
for (var i = 0; i < availableMeshNames[name].recommendations.length; i++) {
var reco = availableMeshNames[name].recommendations[i].camera;
reco.lookAt(reco.target);
reco.updateMatrix();
reco.updateProjectionMatrix();
reco.updateMatrixWorld();
reco.matrixWorldInverse.getInverse( reco.matrixWorld );
var frustum = new THREE.Frustum();
var projScreenMatrix = new THREE.Matrix4();
projScreenMatrix.multiplyMatrices(reco.projectionMatrix, reco.matrixWorldInverse);
frustum.setFromMatrix(new THREE.Matrix4().multiplyMatrices(reco.projectionMatrix, reco.matrixWorldInverse));
geo.availableMeshes[name].recommendations.push({
position: reco.position,
target: reco.target,
planes: frustum.planes
});
}
}
availableMeshNames[name].done = true;
trySetLoaded();
}
);
}
for (var name in availableMeshNames) {
pushMesh(name);
}