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johnnyliao
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‎js/ane.js

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// ane 背景 海葵
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var margin = 16, //间距
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aneWidth = 20; //宽度
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var aneObj = function(){
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this.x = [];
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this.len = [];
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this.num = 50 //数量
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}
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aneObj.prototype.initAne = function(){
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for (let i = 0; i < this.num; i++) {
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this.x[i] = i * margin + Math.random() * 20;
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this.len[i] = 200 + Math.random() * 50;
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}
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}
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// 绘制
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aneObj.prototype.drawAne = function(){
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ctx2.save();
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ctx2.globalAlpha = 0.6;
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ctx2.strokeStyle = '#3b154e';//
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ctx2.lineWidth = 20;
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ctx2.lineCap = 'round';
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for (let i = 0; i < this.num; i++) {
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ctx2.beginPath();
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ctx2.moveTo(this.x[i], imgHeight);
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ctx2.lineTo(this.x[i], imgHeight - this.len[i]);
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ctx2.stroke();
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// console.log(this.x[i], imgHeight - this.len[i]);
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}
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ctx2.restore();
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}

‎js/baby.js

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//小鱼
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var babyObj = function(){
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this.x ;
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this.y;
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this.angle;
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// this.babyEye = new Image()
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this.babyBody = new Image()
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// this.babyTail = new Image()
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this.bodyCount = 0;
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this.bodyTimer = 0;
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this.tailTime = 0;
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this.tailCount = 0
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this.babyEyeTime=0;
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this.babyInterval = 1000;
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this.babyEyeCount = 0;
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}
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babyObj.prototype.init = function(){
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this.x = parseInt(imgWidth) * 0.5 - 50;
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this.y = parseInt(imgHeight) * 0.5 + 50;
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this.angle = 0;
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// this.babyEye.src = './src/babyEye0.png'
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// this.babyBody.src = './src/babyFade0.png'
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// this.babyTail.src = './src/babyTail0.png'
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}
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babyObj.prototype.draw = function(){
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this.x = lerpDistance(mom.x, this.x, 0.98)
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this.y = lerpDistance(mom.y, this.y, 0.9)
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var delataY =mom.y - this.y,
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deltaX = mom.x - this.x;
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this.bodyTimer += deltaTime;
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if (this.bodyTimer > 300) {
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this.bodyTimer %= 300
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this.bodyCount += 1
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if (this.bodyCount > 19) {
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//game over
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this.bodyCount = 19
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}else{
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this.bodyCount %= 19
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}
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}
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this.tailTime += deltaTime
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//尾巴
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if(this.tailTime > 50){
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this.tailTime %= 50
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this.tailCount = (this.tailCount+1) % 8;
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}
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this.babyEyeTime += deltaTime;
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if (this.babyEyeTime > this.babyInterval) {
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this.babyEyeCount = (this.babyEyeCount + 1) % 2;
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this.babyEyeTime %= this.babyInterval
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if (this.babyEyeCount == 0) {
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this.babyInterval = Math.random() * 1500 + 2000 // 眨眼之后
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}else{
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this.babyInterval = 200
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}
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}
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//获得反正切 + 一个Pi的角度
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var beta = Math.atan2(delataY, deltaX) + Math.PI;
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//把角度调整, 使鱼能跟随鼠标旋转
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this.angle = lerpAngle(beta, this.angle, 0.6)
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ctx1.save();
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var count = this.bodyCount;
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ctx1.translate(this.x, this.y)
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ctx1.rotate(this.angle)
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ctx1.drawImage(bigTail[this.tailCount], -bigTail[this.tailCount].width*0.5 + 23, -bigTail[this.tailCount].height*0.5)
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ctx1.drawImage(babyBody[count], -babyBody[count].width*0.5, -babyBody[count].height*0.5)
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ctx1.drawImage(babyEye[this.babyEyeCount], -babyEye[this.babyEyeCount].width*0.5, -babyEye[this.babyEyeCount].height*0.5)
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ctx1.restore()
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}

‎js/background.js

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//background
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function drawImage(){
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ctx2.drawImage(bgImg, 0, 0, imgWidth, imgHeight )
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}

‎js/collision.js

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//判断鱼鱼果实是否碰撞
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function momFruitCol(){
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for (var i = 0; i < fruit.num; i++) {
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if (fruit.alive[i])
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if (calLength2(fruit.x[i], fruit.y[i], mom.x, mom.y) < 900){
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console.log('碰撞')
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//30 * 30 区域为可以碰撞区域
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fruit.alive[i] = false
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}
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}
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}
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function calLenMomBaby(){
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var len = calLength2(mom.x, mom.y, baby.x, baby.y)
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if (len < 900) {
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baby.bodyCount = 0
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}
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}

‎js/commonFunctions.js

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window.requestAnimFrame = (function() {
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return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame ||
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function( /* function FrameRequestCallback */ callback, /* DOMElement Element */ element) {
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return window.setTimeout(callback, 1000 / 60);
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};
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})();
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function calLength2(x1, y1, x2, y2) {
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return Math.pow(x1 - x2, 2) + Math.pow(y1 - y2, 2);
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}
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function randomColor() {
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var col = [0, 1, 2];
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col[0] = Math.random() * 100 + 155;
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col[0] = col[0].toFixed();
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col[1] = Math.random() * 100 + 155;
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col[1] = col[1].toFixed();
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col[2] = Math.random() * 100 + 155;
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col[2] = col[2].toFixed();
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var num = Math.floor(Math.random() * 3);
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col[num] = 0;
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return "rgba(" + col[0] + "," + col[1] + "," + col[2] + ",";
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}
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function lerpAngle(a, b, t) {
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var d = b - a;
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if (d > Math.PI) d = d - 2 * Math.PI;
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if (d < -Math.PI) d = d + 2 * Math.PI;
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return a + d * t;
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}
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function lerpDistance(aim, cur, ratio) {
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var delta = cur - aim;
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return aim + delta * ratio;
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}
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function inOboundary(arrX, arrY, l, r, t, b) { //在l r t b范围内的检测
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return arrX > l && arrX < r && arrY > t && arrY < b;
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}
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function rgbColor(r, g, b) {
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r = Math.round(r * 256);
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g = Math.round(g * 256);
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b = Math.round(b * 256);
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return "rgba(" + r + "," + g + "," + b + ",1)";
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}
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function rgbNum(r, g, b) {
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r = Math.round(r * 256);
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g = Math.round(g * 256);
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b = Math.round(b * 256);
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return "rgba(" + r + "," + g + "," + b;
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}
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function rnd(m) {
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var n = m || 1;
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return Math.random() * n;
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}
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function rateRandom(m, n) {
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var sum = 0;
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for (var i = 1; i < (n - m); i++) {
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sum += i;
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}
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var ran = Math.random() * sum;
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for (var i = 1; i < (n - m); i++) {
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ran -= i;
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if (ran < 0) {
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return i - 1 + m;
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}
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}
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}
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function distance(x1, y1, x2, y2, l) {
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var x = Math.abs(x1 - x2);
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var y = Math.abs(y1 - y2);
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if (x < l && y < l) {
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return true;
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}
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return false;
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}
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function AABBbox(object1, w1, h1, object2, w2, h2, overlap) {
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A1 = object1.x + overlap;
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B1 = object1.x + w1 - overlap;
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C1 = object1.y + overlap;
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D1 = object1.y + h1 - overlap;
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A2 = object2.x + overlap;
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B2 = object2.x + w2 - overlap;
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C2 = object2.y + overlap;
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D2 = object2.y + h2 - overlap;
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if (A1 > B2 || B1 < A2 || C1 > D2 || D1 < C2) return false;
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else return true;
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}
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function dis2(x, y, x0, y0) {
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var dx = x - x0;
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var dy = y - y0;
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return dx * dx + dy * dy;
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}
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function rndi2(m, n) {
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var a = Math.random() * (n - m) + m;
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return Math.floor(a);
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}

‎js/fruit.js

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// var length = 20;
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function fruitObj (){
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this.x = [];
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this.y = [];
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this.num = 20;
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this.alive = [];
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this.l = [];
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this.spd = [];
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this.fruitType =[]
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this.orange = new Image();
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this.blue = new Image()
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}
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fruitObj.prototype.init = function (){
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for (var i = 0; i < this.num; i++) {
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this.x[i] = 0
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this.y[i] = ane.len[i]
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this.spd[i] = 0
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this.alive[i] = false
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this.born(i)
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}
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this.orange.src = './src/fruit.png';
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this.blue.src = './src/blue.png';
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}
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fruitObj.prototype.born = function(i){
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var aneID = Math.floor(Math.random() * ane.num)
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this.x[i] = ane.x[aneID];
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this.y[i] = imgHeight - ane.len[aneID]
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//生长速度
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this.l[i] = 0
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this.spd[i] = Math.random() * 0.017 + 0.003; //[0.003, 0.02]
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//blue || orange
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this.fruitType[i] = (Math.random() < 0.2 ? "blue": "orange")
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this.alive[i] = true
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}
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fruitObj.prototype.draw = function(){
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for (var i = 0; i < this.num; i++) {
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var pic = this.fruitType[i] == "blue" ? this.blue : this.orange;
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if (this.l[i] <= 10) {
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this.l[i] += this.spd[i] * deltaTime
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}else{
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this.y[i] -= this.spd[i] * 7 * deltaTime;
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}
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// console.log(this.l[i])
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//width height
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ctx2.drawImage(pic, this.x[i] - this.l[i] * 0.5, this.y[i] - this.l[i] * 0.5, this.l[i], this.l[i])
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// ctx2.drawImage(blue, this.x[i], this.y[i], 10,10 )
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if(this.y[i] <= 10){
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this.alive[i] = false
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}
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}
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}
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// fruitAlive()
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function fruitAlive(){
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// console.log(fruit)
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var aliveNum = 0;
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for (let i = 0; i < fruit.num; i++) {
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if(fruit.alive[i]){
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aliveNum++;
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}
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}
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if (aliveNum < 15 ) {
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sendFruit()
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return
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}
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}
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function sendFruit(){
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for (let i = 0; i < fruit.num; i++) {
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if (!fruit.alive[i]){
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fruit.born(i)
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console.log(i)
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}
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}
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}

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