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CORPORATION: Fix negative stored material (#1771)

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catloversg 2024-11-12 22:24:59 +07:00 committed by GitHub
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commit 9bba6a0a41
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1 changed files with 36 additions and 1 deletions
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37
src/Corporation/Division.ts
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@ -452,6 +452,21 @@ export class Division {
const reqMatQtyNeeded = reqMat * prod * producableFrac;
// producableFrac already takes into account that we have enough stored
// Math.max is used here to avoid stored becoming negative (which can lead to NaNs)
/**
* material.stored can become negative due to floating-point inaccuracy.
*
* Let's check this situation: Tobacco: 1 Plants -> 1 Product. In this situation, we have:
* - reqQty = 1
* - producableFrac = material.stored / prod
* - reqMatQtyNeeded = prod * material.stored / prod
*
* Due to floating-point inaccuracy, "prod * material.stored / prod" may be slightly greater than
* "material.stored". Example numbers from a real test run:
* - warehouse.materials[reqMatName].stored: 942118
* - prod: 176915618.50773352
* - producableFrac: 0.005325239274783516
* - reqMatQtyNeeded: 942118.0000000001
*/
warehouse.materials[reqMatName].stored = Math.max(
0,
warehouse.materials[reqMatName].stored - reqMatQtyNeeded,
@ -797,7 +812,27 @@ export class Division {
let avgQlt = 1;
for (const [reqMatName, reqQty] of getRecordEntries(product.requiredMaterials)) {
const reqMatQtyNeeded = reqQty * prod * producableFrac;
warehouse.materials[reqMatName].stored -= reqMatQtyNeeded;
// producableFrac already takes into account that we have enough stored
// Math.max is used here to avoid stored becoming negative (which can lead to NaNs)
/**
* material.stored can become negative due to floating-point inaccuracy.
*
* Let's check this situation: Tobacco: 1 Plants -> 1 Product. In this situation, we have:
* - reqQty = 1
* - producableFrac = material.stored / prod
* - reqMatQtyNeeded = prod * material.stored / prod
*
* Due to floating-point inaccuracy, "prod * material.stored / prod" may be slightly greater than
* "material.stored". Example numbers from a real test run:
* - warehouse.materials[reqMatName].stored: 942118
* - prod: 176915618.50773352
* - producableFrac: 0.005325239274783516
* - reqMatQtyNeeded: 942118.0000000001
*/
warehouse.materials[reqMatName].stored = Math.max(
0,
warehouse.materials[reqMatName].stored - reqMatQtyNeeded,
);
warehouse.materials[reqMatName].productionAmount -=
reqMatQtyNeeded / (corpConstants.secondsPerMarketCycle * marketCycles);
avgQlt += warehouse.materials[reqMatName].quality;