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Running
Running
| import type { Step } from "./types"; | |
| // Forward pass: copies of the numbers travel to the node, the operation is applied, the result settles above it | |
| export const TRAVEL_MS = 900; | |
| export const APPLY_MS = 750; | |
| const RESULT_HOLD_MS = 350; | |
| export const SETTLE_MS = 500; | |
| export const RESULT_AT = TRAVEL_MS + APPLY_MS; | |
| export const SETTLE_AT = RESULT_AT + RESULT_HOLD_MS; | |
| export const FORWARD_MS = SETTLE_AT + SETTLE_MS; | |
| // The backward pass starts with the seed moving from f to the output node | |
| export const SEED_HOLD_MS = 300; | |
| export const SEED_TRAVEL_MS = 700; | |
| export const SEED_MS = SEED_HOLD_MS + SEED_TRAVEL_MS + SETTLE_MS; | |
| // A derivative goes halfway along each edge, is multiplied by the edge's partial, carries on | |
| // to the far end, and is added to what's there. These times count from when it sets off. | |
| export const OUT_MS = 650; | |
| const MULTIPLY_MS = 750; | |
| const PRODUCT_MS = 350; | |
| export const IN_MS = 650; | |
| const LAND_MS = 500; | |
| const SUM_MS = 200; | |
| export const PRODUCT_AT = OUT_MS + MULTIPLY_MS; | |
| export const IN_AT = PRODUCT_AT + PRODUCT_MS; | |
| export const LAND_AT = IN_AT + IN_MS; | |
| export const SUM_AT = LAND_AT + LAND_MS; | |
| export const FADE_AT = SUM_AT + SUM_MS; | |
| export const DERIVATIVE_MS = FADE_AT + SETTLE_MS; | |
| export function flowDuration(step: Step): number { | |
| if (step.phase === "forward") { | |
| // Forward mode's tangents set off as the value settles | |
| return step.derivative === undefined ? FORWARD_MS : SETTLE_AT + DERIVATIVE_MS; | |
| } | |
| return step.partials.length === 0 ? SEED_MS : DERIVATIVE_MS; | |
| } | |