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Make the world stepping framerate independent #160

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Merged
stockhuman merged 1 commit into from
Feb 15, 2021
Merged

Make the world stepping framerate independent #160

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Make the cannon-es stepping framerate independent
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@marcofugaro
marcofugaro committed Feb 15, 2021
commit efe2e2edf7f91e85ca289701bf0b2c67ca7510dc
11 changes: 10 additions & 1 deletion src/worker.js
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,7 @@ function syncBodies() {
bodies = world.bodies.reduce((acc, body) => ({ ...acc, [body.uuid]: body }), {})
}

let lastCallTime
self.onmessage = (e) => {
const { op, uuid, type, positions, quaternions, props } = e.data

Expand Down Expand Up @@ -95,7 +96,15 @@ self.onmessage = (e) => {
break
}
case 'step': {
world.step(config.step)
const now = performance.now() / 1000
if (!lastCallTime) {
world.step(config.step)
} else {
const timeSinceLastCall = now - lastCallTime
world.step(config.step, timeSinceLastCall)
}
lastCallTime = now

const numberOfBodies = world.bodies.length
for (let i = 0; i < numberOfBodies; i++) {
let b = world.bodies[i],
Expand Down