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app.js
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app.js
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(function() {
var page, paused;
var wave, wavesum, oceanwave, bg = [], waveinfo = [], oceanwaveinfo = [], waveformula = [];
var wavelengthRange, amplitudeRange, phaseRange, speedRange, fetchRange;
var WAVELENGTH_MAGNIFY = 5;
var GRAVITATION = 9.8;
var time, timer;
init();
function init(){
page = 'single_page';
paused = [];
paused['single_page'] = false;
paused['inter_page'] = false;
paused['ocean_page'] = false;
wavelengthRange = new range(1,100);
amplitudeRange = new range(0,100);
phaseRange = new range(0,360);
speedRange = new range(-50,50);
windSpeedRange = new range(-45,45);
fetchRange = new range(0, 10000);
time = [];
time['single_page'] = 0;
time['inter_page'] = 0;
time['ocean_page'] = 0;
wave['single_page'] = [];
wave['single_page'][0] = new wave(1, 60, 50, 4, 0, 3, '#ecf0f1', 1024, 400);
bg[0] = new background(1,'#2980b9','#3498db',.3,12,1024,600);
waveControls(wave['single_page'][0]);
waveinfo['single_page'] = [];
waveinfo['single_page'][0] = wave['single_page'][0];
waveformula['single_page'] = [];
waveformula['single_page'][0] = wave['single_page'][0];
wave['inter_page'] = [];
wave['inter_page'][0] = new wave(2, 30, 90, 4, 10, 3, '#ecf0f1', 300, 100);
wave['inter_page'][1] = new wave(3, 40, 50, -10, 40, 3, '#ecf0f1', 300, 100);
wavesum['inter_page'] = [];
wavesum['inter_page'][0] = new wavesum('2_3', wave['inter_page'][0], wave['inter_page'][1], 3, '#ecf0f1', 1024, 400);
bg[1] = new background(2,'#2980b9','#3498db',.3,12,1024,600);
waveControls(wave['inter_page'][0]);
waveControls(wave['inter_page'][1]);
waveinfo['inter_page'] = [];
waveinfo['inter_page'][1] = wavesum['inter_page'][0];
waveinfo['inter_page'][2] = wave['inter_page'][0];
waveinfo['inter_page'][3] = wave['inter_page'][1];
oceanwave['ocean_page'] = [];
oceanwave['ocean_page'][0] = new oceanwave(4, 120, 30, 5, 0, 28, 5000, new box(1,'#C19264','#f9ba3e',100,15), 3, '#fff', '#00b2ff', 1024, 600);
waveControls(oceanwave['ocean_page'][0]);
oceanwaveinfo['ocean_page'] = [];
oceanwaveinfo['ocean_page'][0] = oceanwave['ocean_page'][0];
for(i in bg) drawBackground(bg[i]);
initAll(['single_page','inter_page','ocean_page']);
animateStart();
}
function range(min,max){
var r = new Object();
r.min = min;
r.max = max;
return r;
}
function waveFormula(wave){
var idx = wave.idx;
if(typeof wave.wave_a === "undefined"){
var k = Math.round((2 * Math.PI / wave.wavelength) * 100) / 100;
var wavelength = wave.wavelength;
var speed = wave.speed;
var amplitude = wave.amplitude;
var phase = wave.phase;
} else {
var k1 = 2 * Math.PI / wave.wave_a.wavelength;
var k2 = 2 * Math.PI / wave.wave_b.wavelength;
var k = Math.round(((1/2 * (k1 + k2)) * 100) / 100);
var wavelength = Math.round((2 * Math.PI / ((1/2) * (k1 + k2))) * 100) / 100;
var speed = Math.round((wave.wave_a.speed + wave.wave_b.speed) * 100) / 100;
var phase = Math.abs(Math.round((wave.wave_a.phase - wave.wave_b.phase) * 100) / 100);
var amplitude = Math.round(wave.amplitude * 100) / 100;
}
var freq = Math.abs(Math.round((speed / wavelength) * 100) / 100);
var omega = Math.round((2 * Math.PI * freq) * 100) / 100;
phase = Math.round(phase * Math.PI / 180 * 100) / 100;
document.getElementById("formula_" + idx).innerHTML = 'y = '+amplitude+' sin ('+k+'x + '+omega+'t + '+phase+')';
}
function waveInformation(wave){
var idx = wave.idx;
if(typeof wave.wave_a === "undefined"){
var wavelength = wave.wavelength;
var speed = wave.speed;
var amplitude = wave.amplitude;
var phase = wave.phase;
} else {
var k1 = 2 * Math.PI / wave.wave_a.wavelength;
var k2 = 2 * Math.PI / wave.wave_b.wavelength;
var wavelength = Math.round((2 * Math.PI / ((1/2) * (k1 + k2))) * 100) / 100;
var speed = Math.round((wave.wave_a.speed + wave.wave_b.speed) * 100) / 100;
var phase = Math.abs(Math.round((wave.wave_a.phase - wave.wave_b.phase) * 100) / 100);
var amplitude = Math.round(wave.amplitude * 100) / 100;
}
var freq = Math.abs(Math.round((speed / wavelength) * 100) / 100);
var T = Math.round((1/freq) * 100) / 100;
var omega = Math.round((2 * Math.PI * freq) * 100) / 100;
document.getElementById("value_" + idx + "_1").innerHTML = wavelength;
document.getElementById("value_" + idx + "_2").innerHTML = amplitude;
document.getElementById("value_" + idx + "_3").innerHTML = phase;
document.getElementById("value_" + idx + "_4").innerHTML = speed;
if(document.getElementById("value_" + idx + "_5") != null){
document.getElementById("value_" + idx + "_5").innerHTML = freq;
document.getElementById("value_" + idx + "_6").innerHTML = T;
document.getElementById("value_" + idx + "_7").innerHTML = omega;
}
}
function oceanWaveInformation(oceanwave){
function h(xi) {
if (xi > 500000) xi = 500000;
var x = Math.log(xi)/Math.log(10);
return 0.0027336911481801 * x * x * x * x * x
-0.047338700556038 * x * x * x * x
+0.30136374759533 * x * x * x
-0.85874717500723 * x * x
+1.115031374601401 * x
-0.50304293778164;
}
function p(xi) {
if (xi > 500000) xi = 500000;
var x = Math.log(xi)/Math.log(10);
return 0.000013082421016367561 * x * x * x * x * x
-0.000246236315245493 * x * x * x * x
+0.0016286724530578 * x * x * x
-0.0045435447286823 * x * x
+0.0064179166918176 * x
-0.0025698905219639;
}
var time_l = time[page];
var idx = oceanwave.idx;
var width = oceanwave.width;
var height = oceanwave.height;
var box = oceanwave.box;
var windSpeed = -oceanwave.windSpeed / 2;
var xi = Math.max(10, GRAVITATION * oceanwave.fetch / Math.max(Math.abs(windSpeed / 100),0.0001));
var amp = (oceanwave.height * (windSpeed * windSpeed * h(xi) / GRAVITATION)) / (2 * 100) - 2;
var freq = 2 * Math.PI * windSpeed * p(xi) / (GRAVITATION * WAVELENGTH_MAGNIFY) ;
var yOrigin = oceanwave.height / 2;
var omega = 2 * Math.PI * freq;
var lambda = 2 * Math.PI * GRAVITATION / (omega * omega);
var speed = Math.sqrt((GRAVITATION * lambda) / (2 * Math.PI)) / 20;
var phase = (oceanwave.phase + time_l*Math.min(speed, 20)) * Math.PI / 180;
var z = - amp * Math.sin(phase + freq * box.position);
var v_drift = 4 * Math.PI * Math.PI * amp * amp * Math.exp(4 * Math.PI * z / lambda) * freq / lambda;
document.getElementById("value_" + idx + "_1").innerHTML = Math.round(Math.abs(lambda/10));
document.getElementById("value_" + idx + "_2").innerHTML = Math.abs(Math.round(amp * 200) / 100);
document.getElementById("value_" + idx + "_4").innerHTML = Math.round(speed * 200) / 100;
document.getElementById("value_" + idx + "_5").innerHTML = Math.abs(Math.round(freq * 200) / 100);
document.getElementById("value_" + idx + "_6").innerHTML = Math.abs(Math.round(1 / freq * 200) / 100);
document.getElementById("value_" + idx + "_7").innerHTML = Math.abs(Math.round(omega * 200) / 100);
document.getElementById("value_" + idx + "_8").innerHTML = Math.round(oceanwave.windSpeed * 100) / 100;
document.getElementById("value_" + idx + "_9").innerHTML = - Math.round(v_drift * 200) / 100;
document.getElementById("value_" + idx + "_10").innerHTML = oceanwave.fetch;
}
function waveControls(wave) {
slider(wave, 1, wavelengthRange, 'horizontal', wave.wavelength);
slider(wave, 2, amplitudeRange, 'vertical', wave.amplitude);
slider(wave, 3, phaseRange, 'horizontal', wave.phase);
slider(wave, 4, speedRange, 'horizontal', wave.speed);
slider(wave, 8, windSpeedRange, 'horizontal', wave.windSpeed);
slider(wave, 9, fetchRange, 'horizontal', wave.fetch);
}
function slider(wave, i, range, orientation, val){
var idx = "" + wave.idx +"_"+ i;
$("#slider_" + idx).slider({
orientation: orientation,
range : "min",
min : range.min,
max : range.max,
value : val,
animate : true,
slide : function(event, ui) {
adjustWave(wave, i, ui.value);
}
});
}
function adjustWave(wave, i, val) {
if (i == 1) wave.wavelength = val;
else if (i == 2) wave.amplitude = val;
else if (i == 3) wave.phase = val;
else if (i == 4) wave.speed = val;
else if (i == 8) wave.windSpeed = val;
else if (i == 9) wave.fetch = val;
}
function initAll(arr){
for(var i in arr){
var page = arr[i];
if(typeof wave[page] !== "undefined") for(i in wave[page]) if(typeof wave[page][i] !== "undefined") drawWave(wave[page][i]);
if(typeof wavesum[page] !== "undefined") for(i in wavesum[page]) if(typeof wavesum[page][i] !== "undefined") drawSum(wavesum[page][i]);
if(typeof waveinfo[page] !== "undefined") for(i in waveinfo[page]) if(typeof waveinfo[page][i] !== "undefined") waveInformation(waveinfo[page][i]);
if(typeof waveformula[page] !== "undefined") for(i in waveformula[page]) if(typeof waveformula[page][i] !== "undefined") waveFormula(waveformula[page][i]);
if(typeof oceanwave[page] !== "undefined") for(i in oceanwave[page]) if(typeof oceanwave[page][i] !== "undefined") drawOceanWave(oceanwave[page][i]);
if(typeof oceanwaveinfo[page] !== "undefined") for(i in oceanwaveinfo[page]) if(typeof oceanwaveinfo[page][i] !== "undefined") oceanWaveInformation(oceanwaveinfo[page][i]);
}
}
function animateStart() {
timer = setInterval(function() {
if(!paused[page]){
if(typeof wave[page] !== "undefined") for(i in wave[page]) if(typeof wave[page][i] !== "undefined") drawWave(wave[page][i]);
if(typeof wavesum[page] !== "undefined") for(i in wavesum[page]) if(typeof wavesum[page][i] !== "undefined") drawSum(wavesum[page][i]);
if(typeof oceanwave[page] !== "undefined") for(i in oceanwave[page]) if(typeof oceanwave[page][i] !== "undefined") drawOceanWave(oceanwave[page][i]);
if(time[page] & 1){
if(typeof waveinfo[page] !== "undefined") for(i in waveinfo[page]) if(typeof waveinfo[page][i] !== "undefined") waveInformation(waveinfo[page][i]);
if(typeof waveformula[page] !== "undefined") for(i in waveformula[page]) if(typeof waveformula[page][i] !== "undefined") waveFormula(waveformula[page][i]);
if(typeof oceanwaveinfo[page] !== "undefined") for(i in oceanwaveinfo[page]) if(typeof oceanwaveinfo[page][i] !== "undefined") oceanWaveInformation(oceanwaveinfo[page][i]);
}
time[page]++;
}
}, 1000 / 20);
}
function animateStop() {
clearInterval(timer);
timer = null;
}
function wave(idx, wavelength, amplitude, speed, phase, lineWidth, color, width, height){
var w = new Object();
w.idx = idx;
w.wavelength = wavelength;
w.amplitude = amplitude;
w.speed = speed;
w.phase = phase;
w.lineWidth = lineWidth;
w.color = color;
w.width = width;
w.height = height;
w.canvas = document.getElementById('canvas-'+idx+'-wave');
w.buffer = document.createElement('canvas');
w.buffer.width = w.width;
w.buffer.height = w.height;
return w;
}
function wavesum(idx, wave_a, wave_b, lineWidth, color, width, height){
var w = new Object();
w.idx = idx;
w.lineWidth = lineWidth;
w.color = color;
w.width = width;
w.height = height;
w.wave_a = wave_a;
w.wave_b = wave_b;
w.amplitude = 0;
w.canvas = document.getElementById('canvas-'+idx+'-wavesum');
w.buffer = document.createElement('canvas');
w.buffer.width = w.width;
w.buffer.height = w.height;
return w;
}
function oceanwave(idx, wavelength, amplitude, speed, phase, windSpeed, fetch, box, lineWidth, color, bgColor, width, height){
var w = new Object();
w.idx = idx;
w.wavelength = wavelength;
w.amplitude = amplitude;
w.speed = speed;
w.phase = phase;
w.windSpeed = windSpeed;
w.fetch = fetch;
w.box = box;
w.lineWidth = lineWidth;
w.color = color;
w.bgColor = bgColor;
w.width = width;
w.height = height;
w.canvas = document.getElementById('canvas-'+idx+'-oceanwave');
w.buffer = document.createElement('canvas');
w.buffer.width = w.width;
w.buffer.height = w.height;
return w;
}
function box(idx, color, bgColor, position, radius, fixedPosition) {
var b = new Object();
b.idx = idx;
b.color = color;
b.bgColor = bgColor;
b.position = position;
b.radius = radius;
b.fixedPosition;
return b;
}
function background(idx, bgColor, lineColor, lineWidth, increment, width, height){
var b = new Object();
b.idx = idx;
b.bgColor = bgColor;
b.lineColor = lineColor;
b.lineWidth = lineWidth;
b.increment = increment;
b.width = width;
b.height = height;
return b;
}
function drawWave(wave){
var time_l = time[page];
var idx = wave.idx;
var width = wave.width;
var height = wave.height;
var ctx = wave.buffer.getContext('2d');
ctx.clearRect(0,0,width,height);
ctx.lineWidth = wave.lineWidth;
var phase = (wave.phase + time_l*wave.speed) * Math.PI / 180;
var amp = (wave.height * wave.amplitude) / (2 * 100);
var freq = 2 * Math.PI * (1 / (wave.wavelength * WAVELENGTH_MAGNIFY));
var yOrigin = wave.height / 2;
ctx.beginPath();
var line_color = 'rgba('+hexToRgb(wave.color).r+','+hexToRgb(wave.color).g+','+hexToRgb(wave.color).b+','+0.2+')';
ctx.strokeStyle = line_color;
ctx.moveTo(0, height/2);
ctx.lineTo(width, height/2);
ctx.stroke();
ctx.beginPath();
ctx.strokeStyle = wave.color;
for ( var i = 0; i < wave.width; i++) {
var y2 = amp * Math.sin(phase + freq * (i + 1)) + yOrigin;
ctx.lineTo(i + 1, y2);
}
ctx.stroke();
var front_ctx = wave.canvas.getContext("2d");
front_ctx.clearRect(0, 0, wave.width, wave.height);
front_ctx.drawImage(wave.buffer, 0, 0);
}
function drawSum(wavesum){
var time_l = time[page];
var idx = wavesum.idx;
var width = wavesum.width;
var height = wavesum.height;
var ctx = wavesum.buffer.getContext('2d');
ctx.clearRect(0,0,width,height);
ctx.lineWidth = wavesum.lineWidth;
var wave_a = wavesum.wave_a;
var wave_b = wavesum.wave_b;
var wave_a_color = 'rgba('+hexToRgb(wave_a.color).r+','+hexToRgb(wave_a.color).g+','+hexToRgb(wave_a.color).b+','+0.3+')';
var wave_b_color = 'rgba('+hexToRgb(wave_b.color).r+','+hexToRgb(wave_a.color).g+','+hexToRgb(wave_a.color).b+','+0.2+')';
var phase1 = (wave_a.phase + time_l*wave_a.speed) * Math.PI / 180;
var phase2 = (wave_b.phase + time_l*wave_b.speed) * Math.PI / 180;
var amp1 = (wave_a.height * wave_a.amplitude) / (2 * 100);
var amp2 = (wave_b.height * wave_b.amplitude) / (2 * 100);
var freq1 = 2 * Math.PI * (1 / (wave_a.wavelength * WAVELENGTH_MAGNIFY));
var freq2 = 2 * Math.PI * (1 / (wave_b.wavelength * WAVELENGTH_MAGNIFY));
var yOrigin = height / 2;
ctx.beginPath();
var line_color = 'rgba('+hexToRgb(wavesum.color).r+','+hexToRgb(wavesum.color).g+','+hexToRgb(wavesum.color).b+','+0.2+')';
ctx.strokeStyle = line_color;
ctx.moveTo(0, height/2);
ctx.lineTo(width, height/2);
ctx.stroke();
var amplitude_max = 0;
for ( var i = 0; i < width; i++) {
var y1_1 = amp1 * Math.sin(phase1 + freq1 * i);
var y1_2 = amp1 * Math.sin(phase1 + freq1 * (i + 1));
var y2_1 = amp2 * Math.sin(phase2 + freq2 * i);
var y2_2 = amp2 * Math.sin(phase2 + freq2 * (i + 1));
ctx.strokeStyle = wave_a_color;
ctx.beginPath();
ctx.moveTo(i, y2_1 + yOrigin);
ctx.lineTo(i + 1, y2_2 + yOrigin);
ctx.stroke();
ctx.strokeStyle = wave_b_color;
ctx.beginPath();
ctx.moveTo(i, y1_1 + yOrigin);
ctx.lineTo(i + 1, y1_2 + yOrigin);
ctx.stroke();
ctx.strokeStyle = wavesum.color;
ctx.beginPath();
ctx.moveTo(i, y1_1 + y2_1 + yOrigin);
ctx.lineTo(i + 1, y1_2 + y2_2 + yOrigin);
ctx.stroke();
if(wave_a.wavelength == wave_b.wavelength) amplitude_max = 2*(y1_1 + y2_1) > amplitude_max ? 2*(y1_1 + y2_1) : amplitude_max;
}
if(wave_a.wavelength != wave_b.wavelength) amplitude_max = wave_a.amplitude + wave_b.amplitude;
wavesum.amplitude = amplitude_max;
var front_ctx = wavesum.canvas.getContext("2d");
front_ctx.clearRect(0, 0, width, height);
front_ctx.drawImage(wavesum.buffer, 0, 0);
}
function drawOceanWave(oceanwave){
function h(xi) {
if (xi > 500000) xi = 500000;
var x = Math.log(xi)/Math.log(10);
return 0.0027336911481801 * x * x * x * x * x
-0.047338700556038 * x * x * x * x
+0.30136374759533 * x * x * x
-0.85874717500723 * x * x
+1.115031374601401 * x
-0.50304293778164;
}
function p(xi) {
if (xi > 500000) xi = 500000;
var x = Math.log(xi)/Math.log(10);
return 0.000013082421016367561 * x * x * x * x * x
-0.000246236315245493 * x * x * x * x
+0.0016286724530578 * x * x * x
-0.0045435447286823 * x * x
+0.0064179166918176 * x
-0.0025698905219639;
}
var time_l = time[page];
var idx = oceanwave.idx;
var width = oceanwave.width;
var height = oceanwave.height;
var ctx = oceanwave.buffer.getContext('2d');
ctx.clearRect(0,0,width,height);
ctx.strokeStyle = oceanwave.color;
ctx.lineWidth = oceanwave.lineWidth;
var box = oceanwave.box;
var windSpeed = -oceanwave.windSpeed / 2;
console.log(oceanwave.fetch);
var xi = Math.max(10, GRAVITATION * oceanwave.fetch / Math.max(Math.abs(windSpeed / 100),0.0001));
var amp = (oceanwave.height * (windSpeed * windSpeed * h(xi) / GRAVITATION)) / (2 * 100) - 2;
var freq = 2 * Math.PI * windSpeed * p(xi) / (GRAVITATION * WAVELENGTH_MAGNIFY) ;
var yOrigin = oceanwave.height / 2;
var omega = 2 * Math.PI * freq;
var lambda = 2 * Math.PI * GRAVITATION / (omega * omega);
var speed = Math.sqrt((GRAVITATION * lambda) / (2 * Math.PI)) / 20;
var phase = (oceanwave.phase + time_l*Math.min(speed, 20)) * Math.PI / 180;
var z = - amp * Math.sin(phase + freq * box.position);
var v_drift = 4 * Math.PI * Math.PI * amp * amp * Math.exp(4 * Math.PI * z / lambda) * freq / lambda;
box.position = (box.position + oceanwave.width - v_drift) % oceanwave.width;
ctx.beginPath();
ctx.strokeStyle = 'rgba('+hexToRgb(oceanwave.color).r+','+hexToRgb(oceanwave.color).g+','+hexToRgb(oceanwave.color).b+','+0.4+')';
for ( var i = 0; i < oceanwave.width; i++) {
var y = amp/7.3 * Math.sin(phase + (freq*3.2) * i) + yOrigin;
ctx.lineTo(i, y);
}
ctx.lineTo(oceanwave.width,oceanwave.height);
ctx.lineTo(-2,oceanwave.height);
ctx.closePath();
ctx.fillStyle = 'rgba('+hexToRgb(oceanwave.bgColor).r+','+hexToRgb(oceanwave.bgColor).g+','+hexToRgb(oceanwave.bgColor).b+','+0.4+')';
ctx.fill();
ctx.stroke();
ctx.beginPath();
ctx.strokeStyle = 'rgba('+hexToRgb(oceanwave.color).r+','+hexToRgb(oceanwave.color).g+','+hexToRgb(oceanwave.color).b+','+0.65+')';
for ( var i = 0; i < oceanwave.width; i++) {
var y = amp/3.2 * Math.sin(phase + (freq*1.7) * i) + yOrigin;
ctx.lineTo(i, y);
}
ctx.lineTo(oceanwave.width,oceanwave.height);
ctx.lineTo(-2,oceanwave.height);
ctx.closePath();
ctx.fillStyle = 'rgba('+hexToRgb(oceanwave.bgColor).r+','+hexToRgb(oceanwave.bgColor).g+','+hexToRgb(oceanwave.bgColor).b+','+0.65+')';
ctx.fill();
ctx.stroke();
ctx.beginPath();
ctx.moveTo(-2, 0);
ctx.strokeStyle = 'rgba('+hexToRgb(oceanwave.color).r+','+hexToRgb(oceanwave.color).g+','+hexToRgb(oceanwave.color).b+','+0.9+')';
for ( var i = 0; i < oceanwave.width; i++) {
var y = amp * Math.sin(phase + freq * i) + yOrigin;
ctx.lineTo(i, y);
}
ctx.lineTo(oceanwave.width,oceanwave.height);
ctx.lineTo(-2,oceanwave.height);
ctx.closePath();
ctx.fillStyle = 'rgba('+hexToRgb(oceanwave.bgColor).r+','+hexToRgb(oceanwave.bgColor).g+','+hexToRgb(oceanwave.bgColor).b+','+1+')';
ctx.fill();
ctx.stroke();
for ( var i = - box.radius; i < oceanwave.width + box.radius; i++) {
if (Math.abs((i + oceanwave.width) % oceanwave.width - box.position) < 1) {
var y1 = amp * Math.sin(phase + freq * (i-box.radius / 2)) + yOrigin;
var y2 = amp * Math.sin(phase + freq * (i+box.radius * 3 / 2)) + yOrigin;
var dist = Math.sqrt((box.radius*box.radius) + (y1-y2)*(y1-y2)/4);
var radius = box.radius * (box.radius / dist);
ctx.strokeStyle = box.color;
ctx.beginPath();
ctx.moveTo(i, y1 - radius);
ctx.lineTo(i + 2 * radius, y2 - radius);
ctx.lineTo(i + 2 * radius + y1 - y2, y2 + radius);
ctx.lineTo(i + y1 - y2, y1 + radius);
ctx.closePath();
ctx.stroke();
ctx.fillStyle = box.bgColor;
ctx.fill();
ctx.strokeStyle = 'rgba('+hexToRgb(box.color).r+','+hexToRgb(box.color).g+','+hexToRgb(box.color).b+','+0.4+')';
ctx.beginPath();
ctx.moveTo(i, y1 - radius);
ctx.lineTo(i + 2 * radius + y1 - y2, y2 + radius);
ctx.moveTo(i + 2 * radius, y2 - radius);
ctx.lineTo(i + y1 - y2, y1 + radius);
ctx.closePath();
ctx.stroke();
}
}
ctx.beginPath();
ctx.moveTo(-2, 0);
ctx.strokeStyle = 'rgba('+hexToRgb(oceanwave.color).r+','+hexToRgb(oceanwave.color).g+','+hexToRgb(oceanwave.color).b+','+0.5+')';
for ( var i = 0; i < oceanwave.width; i++) {
var y = amp * Math.sin(phase + freq * i) + yOrigin;
ctx.lineTo(i, y);
}
ctx.lineTo(oceanwave.width,oceanwave.height);
ctx.lineTo(-2,oceanwave.height);
ctx.closePath();
ctx.fillStyle = 'rgba('+hexToRgb(oceanwave.bgColor).r+','+hexToRgb(oceanwave.bgColor).g+','+hexToRgb(oceanwave.bgColor).b+','+0.2+')';
ctx.fill();
ctx.stroke();
var front_ctx = oceanwave.canvas.getContext("2d");
front_ctx.clearRect(0, 0, oceanwave.width, oceanwave.height);
front_ctx.drawImage(oceanwave.buffer, 0, 0);
}
function drawBackground(bgr){
var idx = bgr.idx;
var width = bgr.width;
var height = bgr.height;
var canvas = document.getElementById('canvas-'+idx+'-bg');
var ctx = canvas.getContext('2d');
ctx.fillStyle = bgr.bgColor;
ctx.fillRect(0,0,width,height);
ctx.strokeStyle = bgr.lineColor;
ctx.strokeWidth = bgr.lineWidth;
var increment = bgr.increment;
for(var i = 0; i < height/increment; i++){
ctx.moveTo(0,i*increment);
ctx.lineTo(width,i*increment);
}
for(var i = 0; i < width/increment; i++){
ctx.moveTo(i*increment,0);
ctx.lineTo(i*increment,height);
}
ctx.stroke();
}
$('ul.menu-list > li > a').click(function(){
var id = $(this).attr('id');
if(id == 'single_page') $('.canvas-area').css('top',0);
if(id == 'inter_page') $('.canvas-area').css('top',-600);
if(id == 'ocean_page') $('.canvas-area').css('top',-1200);
if(id == 'about_page') $('.canvas-area').css('top',-1800);
page = id;
var current_state = paused[page];
paused[page] = true;
setTimeout(function(){ $('.canvas-area').removeClass('slideright'); }, 500);
setTimeout(function(){ paused[page] = current_state; }, 1000);
});
$('.playpause').click(function(){
if(paused[page]){
$(this).html('<i class="fa fa-pause"></i>');
paused[page] = false;
} else {
$(this).html('<i class="fa fa-play"></i>');
paused[page] = true;
}
// Handle timer leak
var allpaused = true;
for(var p in paused){
if(!paused[p]) allpaused = false;
}
if(allpaused) animateStop();
else if(timer == null) animateStart();
});
$('.trigger-menu').click(function(){
var current_state = paused[page];
paused[page] = true;
if($('.canvas-area').hasClass('slideright')) $('.canvas-area').removeClass('slideright');
else $('.canvas-area').addClass('slideright');
setTimeout(function(){ paused[page] = current_state; }, 500);
});
function hexToRgb(hex) {
// Expand shorthand form (e.g. "03F") to full form (e.g. "0033FF")
var shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
hex = hex.replace(shorthandRegex, function(m, r, g, b) {
return r + r + g + g + b + b;
});
var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
return result ? {
r: parseInt(result[1], 16),
g: parseInt(result[2], 16),
b: parseInt(result[3], 16)
} : null;
}
})();