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(svn r3546) - NewGRF feature: Implement rail vehicle 'property' 0x1A: allows shuffling order of rail vehicle purchase list (and replace vehicle list)

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peter1138
2006-02-04 21:48:46 +00:00
parent 78b51cbec2
commit 500a7e6627
5 changed files with 68 additions and 7 deletions
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41
newgrf_engine.c
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@@ -591,3 +591,44 @@ StringID GetCustomEngineName(EngineID engine)
return STR_SPEC_USERSTRING;
}
// Functions for changing the order of vehicle purchase lists
// This is currently only implemented for rail vehicles.
static EngineID engine_list_order[NUM_TRAIN_ENGINES];
void ResetEngineListOrder(void)
{
EngineID i;
for (i = 0; i < NUM_TRAIN_ENGINES; i++)
engine_list_order[i] = i;
}
EngineID GetRailVehAtPosition(EngineID pos)
{
return engine_list_order[pos];
}
void AlterRailVehListOrder(EngineID engine, EngineID target)
{
EngineID i;
bool moving = false;
if (engine == target) return;
// First, remove our ID from the list.
for (i = 0; i < NUM_TRAIN_ENGINES - 1; i++) {
if (engine_list_order[i] == engine)
moving = true;
if (moving)
engine_list_order[i] = engine_list_order[i + 1];
}
// Now, insert it again, before the target engine.
for (i = NUM_TRAIN_ENGINES - 1; i > 0; i--) {
engine_list_order[i] = engine_list_order[i - 1];
if (engine_list_order[i] == target) {
engine_list_order[i - 1] = engine;
break;
}
}
}