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Removed status msgs, added a tmp variable, kept parseInt to prevent rounding error when high value has a decimal value

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juggledad 2020-11-13 17:16:43 -05:00 committed by GitHub
parent 3cbbd1b21a
commit b284f86520
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1 changed files with 38 additions and 43 deletions
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81
function/random/random.js
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@ -4,62 +4,57 @@ module.exports = function(RED) {
function RandomNode(n) {
RED.nodes.createNode(this,n);
this.status({}); // blank status on a deploy
this.low = n.low
this.high = n.high
this.inte = n.inte || false;
this.property = n.property||"payload";
var node = this;
var tmp = {};
this.on("input", function(msg) {
if (n.low !== "") {this.low = parseFloat(n.low)}
else {this.low = n.low};
if (n.high !== "") {this.high = parseFloat(n.high)}
else {this.high = n.high};
if (node.low === "") {
node.low = 1;
if ('from' in msg) {node.low = msg.from}
tmp.low = 1;
if ('from' in msg) {
tmp.low = msg.from}
}
if (node.high === "") {
node.high = 10;
if ('to' in msg) {node.high = msg.to}
}
// if returning an interger, do a parseInt() on the low and high values
if ( (node.inte == "true") || (node.inte === true) ) {
node.low = parseInt(node.low);
node.high = parseInt(node.high);
tmp.high = 10;
if ('to' in msg) {tmp.high = msg.to}
}
// if tmp.low or tmp.high is not a number flag an error and do not send out a msg
if ( (isNaN(tmp.low)) || (isNaN(tmp.high)) ) {
this.error({node:"random",text:"one of the input values is not a number"})
}
else {
// force tmp.high/low to Numbers since they may be a string
tmp.low = Number(tmp.low)
tmp.high = Number(tmp.high)
// flip the values if low > high so random will work
var value;
if (node.low > node.high) {
value = node.low
node.low = node.high
node.high = value
}
// generate the random number
if ( (node.inte == "true") || (node.inte === true) ) {
node.low = Math.round(node.low)
node.high = Math.round(node.high)
value = Math.round(Math.random() * (node.high - node.low + 1) + node.low - 0.5);
} else {
value = Math.random() * (node.high - node.low) + node.low;
}
RED.util.setMessageProperty(msg,node.property,value);
var value = 0;
if (tmp.low > tmp.high) {
value = tmp.low
tmp.low = tmp.high
tmp.high = value
}
// output a status under the node
var color = "grey";
if ( (isNaN(node.low)) || (isNaN(node.high)) ) {
this.status({fill:"red",shape:"dot",text:"random: from " + node.low + " to " + node.high})
this.error({node:"random",text:"one of the input values is not a number"})
} else {
this.status({fill:"grey",shape:"dot",text:"random: from " + node.low + " to " + node.high + " value=" + value});
node.send(msg);
// if returning an integer, do a parseInt() on the low and high values
// before generate the random number. This must be done to insure the rounding
// doesn't go up if using something like 4.7 or you can end up with 5
if ( (node.inte == "true") || (node.inte === true) ) {
tmp.low = parseInt(tmp.low);
tmp.high = parseInt(tmp.high);
value = Math.round(Math.random() * (tmp.high - tmp.low + 1) + tmp.low - 0.5);
} else {
value = (Math.random() * (tmp.high - tmp.low)) + tmp.low;
}
RED.util.setMessageProperty(msg,node.property,value);
node.send(msg);
}
});
}