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Add "very reduced" mode to the vehicle breakdowns setting

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This commit is contained in:
Jonathan G Rennison
2023-03-21 17:30:16 +00:00
parent a6babb23d3
commit 664c486fea
3 changed files with 17 additions and 7 deletions
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6
src/vehicle.cpp
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@@ -2175,6 +2175,9 @@ void CheckVehicleBreakdown(Vehicle *v)
}
/**
* Chance is (1 - reliability) * breakdown_setting * breakdown_chance / 10.
* breakdown_setting is scaled by 2 to support a value of 1/2 (setting value 64).
* Chance is (1 - reliability) * breakdown_scaling_x2 * breakdown_chance / 20.
*
* At 90% reliabilty, normal setting (2) and average breakdown_chance (128),
* a vehicle will break down (on average) every 100 days.
* This *should* mean that vehicles break down about as often as (or a little less than) they used to.
@@ -2182,7 +2185,8 @@ void CheckVehicleBreakdown(Vehicle *v)
* their impact will be significantly less.
*/
uint32 r1 = Random();
if ((uint32) (0xffff - v->reliability) * _settings_game.difficulty.vehicle_breakdowns * chance > GB(r1, 0, 24) * 10) {
uint32 breakdown_scaling_x2 = (_settings_game.difficulty.vehicle_breakdowns == 64) ? 1 : (_settings_game.difficulty.vehicle_breakdowns * 2);
if ((uint32) (0xffff - v->reliability) * breakdown_scaling_x2 * chance > GB(r1, 0, 24) * 10 * 2) {
uint32 r2 = Random();
v->breakdown_ctr = GB(r1, 24, 6) + 0xF;
if (v->type == VEH_TRAIN) SetBit(Train::From(v)->First()->flags, VRF_CONSIST_BREAKDOWN);