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Update TradeEvaluation.kt (#13770)

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EmperorPinguin 2025-08-06 21:24:29 +02:00 committed by GitHub
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1 changed files with 5 additions and 4 deletions
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core/src/com/unciv/logic/trade/TradeEvaluation.kt
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@ -144,9 +144,10 @@ class TradeEvaluation {
TradeOfferType.Embassy -> return (30 * civInfo.gameInfo.speed.goldCostModifier).toInt()
TradeOfferType.Gold -> return offer.amount
// GPT loses value for each 'future' turn, meaning: gold now is more valuable than gold in the future
// Empire-wide production tends to grow at roughly 2% per turn (quick speed), so let's take that as a base line
// Formula could be more sophisticated by taking into account game speed and estimated chance of the gpt-giver cancelling the trade after X amount of turns
TradeOfferType.Gold_Per_Turn -> return (1..offer.duration).sumOf { offer.amount * 0.98.pow(it) }.toInt()
// Empire-wide production tends to grow at roughly 2% per turn (quick speed), so let's take that as a base line,
// which results in an efficiency of (0.98 + 0.98^2 + ... + 0.98^25) / 25 = 0.7772 compared to instant gold, assume this scales similarly on different game speed
// Formula could be more sophisticated by taking into account estimated chance of the gpt-giver cancelling the trade after X amount of turns
TradeOfferType.Gold_Per_Turn -> return offer.amount * offer.duration * 4/5
TradeOfferType.Treaty -> {
return when (offer.name) {
// Since it will be evaluated twice, once when they evaluate our offer and once when they evaluate theirs
@ -348,7 +349,7 @@ class TradeEvaluation {
return (30 * civInfo.gameInfo.speed.goldCostModifier).toInt() // 30 is Civ V default (on standard only?)
}
TradeOfferType.Gold -> return offer.amount
TradeOfferType.Gold_Per_Turn -> return offer.amount * offer.duration
TradeOfferType.Gold_Per_Turn -> return offer.amount * offer.duration * 4/5
TradeOfferType.Treaty -> {
return when (offer.name) {
// Since it will be evaluated twice, once when they evaluate our offer and once when they evaluate theirs