asif/ab-particles
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create func checkParams

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Better organization.
Added helpful console messages.
This commit is contained in:
Asif Bacchus 2020-04-08 06:37:51 -06:00
parent e345b58555
commit 26cd9261e7
1 changed files with 59 additions and 22 deletions
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81
js/particles.js
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@ -4,28 +4,8 @@ function particles(){
https://youtu.be/d620nV6bp0A
*/
// handle parameters
particles = (
typeof particles !== 'undefined'
&& Number.isFinite(particles)
) ? particles : 1;
sizeMultiplier = (
typeof sizeMultiplier !== 'undefined'
&& Number.isFinite(sizeMultiplier)
) ? sizeMultiplier : 3;
speed = (
typeof speed !== 'undefined'
&& Number.isFinite(speed)
&& (1 <= speed && speed <= 1000)
) ? (speed / 100) : 50;
avoidMouse = (
typeof avoidMouse !== 'undefined'
&& typeof avoidMouse === 'boolean'
) ? avoidMouse : true;
hover = (
typeof hover !== 'undefined'
&& typeof hover === 'boolean'
) ? hover : true;
// check parameters and use defaults as necessary
checkParams();
// read css colour variables from root element
const particleColour = getComputedStyle(document.documentElement).getPropertyValue('--col-particle');
@ -192,4 +172,61 @@ function particles(){
init();
animate();
function checkParams(){
if (typeof numParticles == 'undefined'){
numParticles = 1;
}
else if (Number.isInteger(particles)){
numParticles;
}
else{
numParticles = 1;
console.log("'particles' must be an integer value. Using default of '1'");
};
if (typeof sizeMultiplier == 'undefined'){
sizeMultiplier = 3;
}
else if (Number.isFinite(sizeMultiplier)){
sizeMultiplier;
}
else{
sizeMultiplier = 3;
console.log("'sizeMultiplier' must be a finite number. Using default of '3'");
};
if (typeof speed == 'undefined'){
speed = 50;
}
if (Number.isInteger(speed) && (1 <= speed && speed <= 1000)){
speed;
}
else{
speed = 50;
console.log("'speed' must be an integer between 1-1000. Using default of '50'");
};
if (typeof avoidMouse == 'undefined'){
avoidMouse = true;
}
else if (typeof avoidMouse === 'boolean'){
avoidMouse;
}
else{
avoidMouse = true;
console.log("'avoidMouse' must either 'true' or 'false'. Using default of 'true'");
}
if (typeof hover == 'undefined'){
hover = true;
}
else if (typeof hover === 'boolean'){
hover;
}
else{
hover = true;
console.log("'hover' must either 'true' or 'false'. Using default of 'true'");
}
}
}