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ModdingUtils.js
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ModdingUtils.js
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function randomIntInRange(min, max) {
return Math.floor(Math.random() * (max - min + 1) + min);
}
function randomDecimalInRange(min, max) {
return Math.random() * (max - min) + min;
}
function randomVelocity(speed) {
let phi = 2 * Math.PI * Math.random();
let vx = speed * Math.cos(phi);
let vy = speed * Math.sin(phi);
return {"vx":vx, "vy":vy};
}
function chooseRandom(choices) {
return choices[Math.floor(Math.random() * choices.length)];
}
function chooseRandomIdx(choices) {
let idx = Math.floor(Math.random() * choices.length);
let choice = choices[idx];
return {"choice":choice, "idx":idx};
}
function chooseRandomChance(choices) {
let totalChance = 0;
for (let choice of choices) {
totalChance += choice.chance;
}
let decider = Math.random() * totalChance;
let accumulatedChance = 0;
for (let choice of choices) {
accumulatedChance += choice.chance;
if (decider < accumulatedChance) {
return choice.value;
}
}
}