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(svn r7070) -Codechange: Make the AI choose road vehicles based on a rating (currently max speed * capacity) instead of either the cost or the index of the vheicle.

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peter1138
2006-11-05 21:50:08 +00:00
parent d7a56088a5
commit 6aa0c247c8
2 changed files with 29 additions and 11 deletions
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18
ai/default/default.c
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@@ -162,12 +162,14 @@ static EngineID AiChooseTrainToBuild(RailType railtype, int32 money, byte flag,
static EngineID AiChooseRoadVehToBuild(CargoID cargo, int32 money, TileIndex tile)
{
EngineID best_veh_index = INVALID_ENGINE;
int32 best_veh_cost = 0;
int32 best_veh_rating = 0;
EngineID i = ROAD_ENGINES_INDEX;
EngineID end = i + NUM_ROAD_ENGINES;
for (; i != end; i++) {
const RoadVehicleInfo *rvi = RoadVehInfo(i);
const Engine* e = GetEngine(i);
int32 rating;
int32 ret;
if (!HASBIT(e->player_avail, _current_player) || e->reliability < 0x8A3D) {
@@ -175,13 +177,17 @@ static EngineID AiChooseRoadVehToBuild(CargoID cargo, int32 money, TileIndex til
}
/* Skip vehicles which can't take our cargo type */
if (RoadVehInfo(i)->cargo_type != cargo) continue;
if (rvi->cargo_type != cargo) continue;
/* Rate and compare the engine by speed & capacity */
rating = rvi->max_speed * rvi->capacity;
if (rating <= best_veh_rating) continue;
ret = DoCommand(tile, i, 0, 0, CMD_BUILD_ROAD_VEH);
if (!CmdFailed(ret) && ret <= money && ret >= best_veh_cost) {
best_veh_cost = ret;
best_veh_index = i;
}
if (CmdFailed(ret) || ret > money) continue;
best_veh_rating = rating;
best_veh_index = i;
}
return best_veh_index;