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BlockyAnimal.js
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BlockyAnimal.js
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// ColoredPoint.js (c) 2012 matsuda
// Vertex shader program
var VSHADER_SOURCE = `
attribute vec4 a_Position;
uniform mat4 u_ModelMatrix;
uniform mat4 u_GlobalRotateMatrix;
void main() {
gl_Position = u_GlobalRotateMatrix * u_ModelMatrix * a_Position;
}
`
// Fragment shader program
var FSHADER_SOURCE = `
precision mediump float;
uniform vec4 u_FragColor;
void main() {
gl_FragColor = u_FragColor;
}
`
const POINT = 0;
const TRIANGLE = 1;
const CIRCLE = 2
// Global variables
let canvas;
let gl;
let a_Position;
let u_FragColor;
let u_Size;
let u_ModelMatrix;
let u_GlobalRotateMatrix;
let MousePos = [0,0];
// UI gloabl variables
let g_selectedColor = [1.0, 1.0, 1.0, 1.0];
let g_selectedSize = 5;
let g_selectedType = POINT;
let g_segments = 10;
let g_globalRotateAngle = -45;
let g_globalRotateAngleY = 0;
let globalRotateX = 0;
let globalRotateY = 0;
let g_animation = true;
let g_specialAnimation = false;
let g_specialAnimationStartTime = null;
// Global joint angles
let backRightLegJoint1 = 0;
let backRightLegJoint2 = 0;
let backRightLegJoint3 = 0;
let backLeftLegJoint1 = 0;
let backLeftLegJoint2 = 0;
let backLeftLegJoint3 = 0;
let frontRightLegJoint1 = 0;
let frontRightLegJoint2 = 0;
let frontRightLegJoint3 = 0;
let frontLeftLegJoint1 = 0;
let frontLeftLegJoint2 = 0;
let frontLeftLegJoint3 = 0;
let bodyJoint = 0;
let headJoint = 0;
let upperLipJoint = 0;
let lowerLipJoint = 0;
function addActionsForHtmlUI(){
// Camera Angle Slider
document.getElementById("angleSlide").addEventListener("input", function(){globalRotateX = this.value;});
document.getElementById("angleSlide2").addEventListener("input", function(){globalRotateY = this.value;});
// Back right leg sliders
document.getElementById("backRightLegJoint1").addEventListener("mousemove", function(){backRightLegJoint1 = this.value;});
document.getElementById("backRightLegJoint2").addEventListener("mousemove", function(){backRightLegJoint2 = this.value;});
document.getElementById("backRightLegJoint3").addEventListener("mousemove", function(){backRightLegJoint3 = this.value;});
// Back left leg sliders
document.getElementById("backLeftLegJoint1").addEventListener("mousemove", function(){backLeftLegJoint1 = this.value;});
document.getElementById("backLeftLegJoint2").addEventListener("mousemove", function(){backLeftLegJoint2 = this.value;});
document.getElementById("backLeftLegJoint3").addEventListener("mousemove", function(){backLeftLegJoint3 = this.value;});
// Front right leg sliders
document.getElementById("frontRightLegJoint1").addEventListener("mousemove", function(){frontRightLegJoint1 = this.value;});
document.getElementById("frontRightLegJoint2").addEventListener("mousemove", function(){frontRightLegJoint2 = this.value;});
document.getElementById("frontRightLegJoint3").addEventListener("mousemove", function(){frontRightLegJoint3 = this.value;});
// Front left leg sliders
document.getElementById("frontLeftLegJoint1").addEventListener("mousemove", function(){frontLeftLegJoint1 = this.value;});
document.getElementById("frontLeftLegJoint2").addEventListener("mousemove", function(){frontLeftLegJoint2 = this.value;});
document.getElementById("frontLeftLegJoint3").addEventListener("mousemove", function(){frontLeftLegJoint3 = this.value;});
// Body joint slider
document.getElementById("bodyJoint").addEventListener("mousemove", function(){bodyJoint = this.value;});
// Head joint slider
document.getElementById("HeadJoint").addEventListener("mousemove", function(){headJoint = this.value;});
document.getElementById("upperLipJoint").addEventListener("mousemove", function(){upperLipJoint = this.value;});
document.getElementById("lowerLipJoint").addEventListener("mousemove", function(){lowerLipJoint = this.value;});
// Animation on off
document.getElementById("animationOn").addEventListener("click", function(){g_animation = true;});
document.getElementById("animationOff").addEventListener("click", function(){g_animation = false;});
}
function setupWebGL() {
// Retrieve <canvas> element
canvas = document.getElementById("webgl");
// Get the rendering context for WebGL
// gl = getWebGLContext(canvas, {preserveDrawingBuffer: true});
gl = getWebGLContext(canvas, false)
if (!gl) {
console.log("Failed to get the rendering context for WebGL");
return;
}
gl.enable(gl.DEPTH_TEST);
}
function connectVariablesToGLSL() {
// Initialize shaders
if (!initShaders(gl, VSHADER_SOURCE, FSHADER_SOURCE)) {
console.log("Failed to intialize shaders.");
return;
}
// // Get the storage location of a_Position
a_Position = gl.getAttribLocation(gl.program, "a_Position");
if (a_Position < 0) {
console.log("Failed to get the storage location of a_Position");
return;
}
// Get the storage location of u_FragColor
u_FragColor = gl.getUniformLocation(gl.program, "u_FragColor");
if (!u_FragColor) {
console.log("Failed to get the storage location of u_FragColor");
return;
}
u_ModelMatrix = gl.getUniformLocation(gl.program, 'u_ModelMatrix');
if (!u_ModelMatrix) {
console.log('Failed to get the storage location of u_ModelMatrix');
return;
}
u_GlobalRotateMatrix = gl.getUniformLocation(gl.program, 'u_GlobalRotateMatrix');
if (!u_GlobalRotateMatrix) {
console.log('Failed to get the storage location of u_GlobalRotateMatrix');
return;
}
let identityM = new Matrix4();
gl.uniformMatrix4fv(u_ModelMatrix, false, identityM.elements);
}
function main() {
// Set up canvas and gl variables
setupWebGL();
// Set up GLSL shader programs and connect GLSL variables
connectVariablesToGLSL();
// getValues();
addActionsForHtmlUI();
canvas.onmousemove = function(ev) { if (ev.buttons == 1) { moveAnimal(ev); } };
canvas.onmousedown = function(ev) { if (ev.shiftKey) { g_specialAnimation = true;}};
// Specify the color for clearing <canvas>
gl.clearColor(0.0, 0.0, 0.0, 1.0);
// Clear <canvas>
// gl.clear(gl.COLOR_BUFFER_BIT);
// renderAllShapes();
requestAnimationFrame(tick);
}
var g_startTime = performance.now()/1000;
var g_seconds = performance.now()/1000 - g_startTime;
function tick(){
// console.log(performance.now());
g_seconds = performance.now()/1000 - g_startTime;
// console.log(g_seconds);
updateAnimationAngles();
renderAllShapes();
requestAnimationFrame(tick);
}
function updateAnimationAngles(){
if(g_animation){
backRightLegJoint1 = (Math.max(120*Math.sin(g_seconds), 0));
backRightLegJoint2 = (Math.min(-90*Math.sin(g_seconds), 40));
backRightLegJoint3 = (Math.max(45*Math.sin(g_seconds),0));
backLeftLegJoint1 = (Math.max(120*Math.sin(g_seconds), 0));
backLeftLegJoint2 = (Math.min(-90*Math.sin(g_seconds), 40));
backLeftLegJoint3 = (Math.max(45*Math.sin(g_seconds), 0));
frontRightLegJoint1 = (Math.max(-40* -Math.sin(g_seconds), 0));
frontRightLegJoint2 = (Math.max(-90* -Math.sin(g_seconds), -40));
frontRightLegJoint3 = (Math.max(45*Math.sin(g_seconds), 0));
frontLeftLegJoint1 = (Math.max(-40* -Math.sin(g_seconds), 0));
frontLeftLegJoint2 = (Math.max(-90* -Math.sin(g_seconds), -40));
frontLeftLegJoint3 = (Math.max(45*Math.sin(g_seconds), 0));
headJoint = (Math.max(45*Math.sin(g_seconds), 0));
bodyJoint = (Math.min(-15*Math.sin(g_seconds), 0));
}
if(g_specialAnimation){
if(g_specialAnimationStartTime == null){
g_specialAnimationStartTime = g_seconds;
}
upperLipJoint = (5*Math.sin(g_seconds*4.5));
lowerLipJoint = (-5*Math.sin(g_seconds*4.5));
if(g_seconds > g_specialAnimationStartTime + 4){
g_specialAnimation = false;
g_specialAnimationStartTime = null;
}
}
}
function moveAnimal(ev){
g_globalRotateAngle += ev.movementX;
g_globalRotateAngleY += ev.movementY;
}
function convertCoordinatesEventToGL(ev){
var x = ev.clientX; // x coordinate of a mouse pointer
var y = ev.clientY; // y coordinate of a mouse pointer
var rect = ev.target.getBoundingClientRect();
x = (x - rect.left - canvas.width / 2) / (canvas.width / 2);
y = (canvas.height / 2 - (y - rect.top)) / (canvas.height / 2);
return([x,y]);
}
function renderAllShapes(){
// Check the time at the start of this function
var startTime = performance.now();
var globalRotMat = new Matrix4().rotate(g_globalRotateAngle, 0, 1, 0).rotate(g_globalRotateAngleY, 1, 0, 0);
globalRotMat.translate(-.25,.3,0);
globalRotMat.scale(0.75, 0.75, 0.75);
globalRotMat.rotate(globalRotateX, 0, 1, 0);
globalRotMat.rotate(globalRotateY, 1, 0, 0);
gl.uniformMatrix4fv(u_GlobalRotateMatrix, false, globalRotMat.elements);
// Clear <canvas>
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
renderScene();
var duration = performance.now() - startTime;
sendTextToHTML(" ms: " + duration.toFixed(2) + " fps: " + Math.floor(10000/duration), "numdot");
}
function sendTextToHTML(text, id){
var htmlElm = document.getElementById(id);
if(!htmlElm){
console.log("Error: could not find HTML element with id: " + id);
return;
}
htmlElm.innerHTML = text;
}
function renderScene(){
let body = new Cube();
body.color = [94, 221, 95, 1];
body.matrix.setTranslate(-.1, -.2, 0.0);
body.matrix.rotate(bodyJoint, 0, 0, 1);
let tempBodyMatrix = new Matrix4(body.matrix);
// this.bodyMatrix = new Matrix4(body.matrix);
body.matrix.rotate(-10, 0, 0, 1);
body.matrix.scale(1, .20, 0.5);
body.render();
let underBody = new Cube();
underBody.color = [255, 255, 255, 1];
underBody.matrix = new Matrix4(tempBodyMatrix);
underBody.matrix.translate(-.111, -.1, 0.0);
underBody.matrix.rotate(-10, 0, 0, 1);
underBody.matrix.scale(1.1, .12, 0.5);
underBody.render();
// Draw head
let head = new Cube();
head.color = [94, 221, 95, 1];
head.matrix = new Matrix4(tempBodyMatrix);
head.matrix.translate(-.35, 0, -0.0501);
head.matrix.rotate(0, 0, 0, 1);
head.matrix.rotate(headJoint, 0, 0, 1);
// let tempHeadMatrix1 = new Matrix4(head.matrix);
let tempHeadMatrix = new Matrix4(head.matrix);
head.matrix.scale(.4, .35, 0.601);
head.render();
// Lower lip
let lowerLip = new Cube();
lowerLip.color = [255, 255, 255, 1];
lowerLip.matrix = new Matrix4(tempHeadMatrix);
lowerLip.matrix.translate(.1, .075, .12);
lowerLip.matrix.rotate(20, 0, 0, 1);
lowerLip.matrix.rotate(lowerLipJoint, 0, 0, 1);
lowerLip.matrix.scale(-.2, .05, 0.35);
lowerLip.render();
// Upper lip
let upperLip = new Cube();
upperLip.color = [255, 255, 255, 1];
upperLip.matrix = new Matrix4(tempHeadMatrix);
upperLip.matrix.translate(.1, .075, .12);
upperLip.matrix.rotate(-20, 0, 0, 1);
upperLip.matrix.rotate(upperLipJoint, 0, 0, 1);
upperLip.matrix.scale(-.2, .05, 0.35);
upperLip.render();
// Draw eyes
let outerEye1 = new Cube();
outerEye1.color = [147, 19, 13, 1];
outerEye1.matrix = new Matrix4(tempHeadMatrix);
outerEye1.matrix.translate(-.05, .2, .075);
let outerEye1Matrix = new Matrix4(outerEye1.matrix);
outerEye1.matrix.rotate(0, 0, 0, 1);
outerEye1.matrix.scale(.1, .1, .1);
outerEye1.render();
let innerEye1 = new Cube();
innerEye1.color = [0, 0, 0, 1];
innerEye1.matrix = outerEye1Matrix;
innerEye1.matrix.translate(-.025, .025, .025);
innerEye1.matrix.rotate(0, 0, 0, 1);
innerEye1.matrix.scale(.05, .05, .05);
innerEye1.render();
let outerEye2 = new Cube();
outerEye2.color = [147, 19, 13, 1];
outerEye2.matrix = new Matrix4(tempHeadMatrix);
outerEye2.matrix.translate(-.05, .2, .4);
let outerEye2Matrix = new Matrix4(outerEye2.matrix);
outerEye2.matrix.rotate(0, 0, 0, 1);
outerEye2.matrix.scale(.1, .1, .1);
outerEye2.render();
let innerEye2 = new Cube();
innerEye2.color = [0, 0, 0, 1];
innerEye2.matrix = outerEye2Matrix;
innerEye2.matrix.translate(-.025, .025, .025);
innerEye2.matrix.rotate(0, 0, 0, 1);
innerEye2.matrix.scale(.05, .05, .05);
innerEye2.render();
// Draw Back Left Leg
let femur = new Cube();
femur.color = [94, 221, 95, 1];
femur.matrix = new Matrix4(tempBodyMatrix);
// femur.matrix = this.bodyMatrix;
femur.matrix.translate(.93, -.1, .05);
femur.matrix.rotate(backLeftLegJoint1, 0, 0, 1);
let tempfemurMatrix = new Matrix4(femur.matrix);
femur.matrix.rotate(-75, 0, 0, 1);
femur.matrix.scale(.15, -.45, -.1);
femur.render();
let tibia = new Cube();
tibia.color = [94, 221, 95, 1];
tibia.matrix = tempfemurMatrix;
tibia.matrix.translate(-.5,-.23,0);
tibia.matrix.rotate(backLeftLegJoint2, 0, 0, 1);
var temptibiaMatrix = new Matrix4(tibia.matrix);
tibia.matrix.rotate(65, 0, 0, 1);
tibia.matrix.scale(.15, -.55, -.1);
tibia.render();
let foot = new Cube();
foot.color = [255, 134, 0, 1];
foot.matrix = temptibiaMatrix;
foot.matrix.translate(.55, -.25, -.125);
foot.matrix.rotate(backLeftLegJoint3, 0, 0, 1);
let tempfootMatrix = new Matrix4(foot.matrix);
foot.matrix.rotate(90, 0, 0, 1);
foot.matrix.scale(.1, .25, .15);
foot.render();
// Draw toes
let toe = new TriangularPrism();
toe.color = [255, 134, 0, 1];
toe.matrix = new Matrix4(tempfootMatrix);
toe.matrix.translate(-.25, 0, .155);
toe.matrix.rotate(135, 0, 1, 0);
toe.matrix.scale(.12, .1, .12);
toe.render();
// Draw Back Right Leg
femur.color = [94, 221, 95, 1];
femur.matrix = new Matrix4(tempBodyMatrix);
femur.matrix.translate(.93, -.1, .55);
femur.matrix.rotate(backRightLegJoint1, 0, 0, 1);
tempfemurMatrix = new Matrix4(femur.matrix);
femur.matrix.rotate(-75, 0, 0, 1);
femur.matrix.scale(.15, -.45, -.1);
femur.render();
// let tibia = new Cube();
tibia.color = [94, 221, 95, 1];
tibia.matrix = tempfemurMatrix;
tibia.matrix.translate(-.5,-.23,0);
tibia.matrix.rotate(backRightLegJoint2, 0, 0, 1);
var temptibiaMatrix = new Matrix4(tibia.matrix);
tibia.matrix.rotate(65, 0, 0, 1);
tibia.matrix.scale(.15, -.55, -.1);
tibia.render();
foot.color = [255, 134, 0, 1];
foot.matrix = temptibiaMatrix;
foot.matrix.translate(.55, -.25, -.125);
foot.matrix.rotate(backRightLegJoint3, 0, 0, 1);
tempfootMatrix = new Matrix4(foot.matrix);
foot.matrix.rotate(90, 0, 0, 1);
foot.matrix.scale(.1, .25, .15);
foot.render();
toe.color = [255, 134, 0, 1];
toe.matrix = new Matrix4(tempfootMatrix);
toe.matrix.translate(-.25, 0, .155);
toe.matrix.rotate(135, 0, 1, 0);
toe.matrix.scale(.12, .1, .12);
toe.render();
// Draw Front Left Leg
femur.color = [94, 221, 95, 1];
femur.matrix = new Matrix4(tempBodyMatrix);
femur.matrix.translate(-.075, -.05, .05);
femur.matrix.rotate(frontLeftLegJoint1, 0, 0, 1);
tempfemurMatrix = new Matrix4(femur.matrix);
femur.matrix.rotate(50, 0, 0, 1);
femur.matrix.scale(.15, -.4, -.1);
femur.render();
// let tibia = new Cube();
tibia.color = [94, 221, 95, 1];
tibia.matrix = tempfemurMatrix;
tibia.matrix.translate(.3, -.1, 0);
tibia.matrix.rotate(frontLeftLegJoint2, 0, 0, 1);
var temptibiaMatrix = new Matrix4(tibia.matrix);
tibia.matrix.rotate(-50, 0, 0, 1);
tibia.matrix.scale(.15, -.52, -.1);
tibia.render();
// let foot = new Cube();
foot.color = [255, 134, 0, 1];
foot.matrix = temptibiaMatrix;
foot.matrix.translate(-.2, -.45, -.125);
foot.matrix.rotate(frontLeftLegJoint3, 0, 0, 1);
tempfootMatrix = new Matrix4(foot.matrix);
foot.matrix.rotate(90, 0, 0, 1);
foot.matrix.scale(.1, .3, .15);
foot.render();
toe.color = [255, 134, 0, 1];
toe.matrix = new Matrix4(tempfootMatrix);
toe.matrix.translate(-.3, 0, .155);
toe.matrix.rotate(135, 0, 1, 0);
toe.matrix.scale(.12, .1, .12);
toe.render();
// Draw Front Right Leg
femur.color = [94, 221, 95, 1];
femur.matrix = new Matrix4(tempBodyMatrix);
femur.matrix.translate(-.075, -.05, .55);
femur.matrix.rotate(frontRightLegJoint1, 0, 0, 1);
tempfemurMatrix = new Matrix4(femur.matrix);
femur.matrix.rotate(50, 0, 0, 1);
femur.matrix.scale(.15, -.4, -.1);
femur.render();
// let tibia = new Cube();
tibia.color = [94, 221, 95, 1];
tibia.matrix = tempfemurMatrix;
tibia.matrix.translate(.3, -.1, 0);
tibia.matrix.rotate(frontRightLegJoint2, 0, 0, 1);
temptibiaMatrix = new Matrix4(tibia.matrix);
tibia.matrix.rotate(-50, 0, 0, 1);
tibia.matrix.scale(.15, -.52, -.1);
tibia.render();
// let foot = new Cube();
foot.color = [255, 134, 0, 1];
foot.matrix = temptibiaMatrix;
foot.matrix.translate(-.2, -.45, -.125);
foot.matrix.rotate(frontRightLegJoint3, 0, 0, 1);
tempfootMatrix = new Matrix4(foot.matrix);
foot.matrix.rotate(90, 0, 0, 1);
foot.matrix.scale(.1, .3, .15);
foot.render();
toe.color = [255, 134, 0, 1];
toe.matrix = new Matrix4(tempfootMatrix);
toe.matrix.translate(-.3, 0, .155);
toe.matrix.rotate(135, 0, 1, 0);
toe.matrix.scale(.12, .1, .12);
toe.render();
}