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(svn r2389) - Feature: [newgrf] Implement the mechanism for handling newgrf callbacks.

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- Feature: [newgrf] Implement the 'refit capacity' callback.
This commit is contained in:
hackykid
2005-06-01 11:34:37 +00:00
parent d1c1a7cba7
commit 351d7aaa9f
5 changed files with 156 additions and 57 deletions
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60
train_cmd.c
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@@ -1318,10 +1318,6 @@ int32 CmdRefitRailVehicle(int x, int y, uint32 flags, uint32 p1, uint32 p2)
cost = 0;
num = 0;
// newgrf stuff can change graphics when refitting
if (!(flags & DC_EXEC))
InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
do {
/* XXX: We also refit all the attached wagons en-masse if they
* can be refitted. This is how TTDPatch does it. TODO: Have
@@ -1330,30 +1326,42 @@ int32 CmdRefitRailVehicle(int x, int y, uint32 flags, uint32 p1, uint32 p2)
if (v->cargo_cap != 0) {
RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
uint16 amount = rvi->capacity;
CargoID old_cid = rvi->cargo_type;
uint16 amount;
CargoID temp_cid = v->cargo_type;
/* the capacity depends on the cargo type, a rail vehicle
* can carry twice as much mail/goods as normal cargo,
* and four times as much passengers */
(old_cid == CT_PASSENGERS) ||
(amount <<= 1, old_cid == CT_MAIL || old_cid == CT_GOODS) ||
(amount <<= 1, true);
(new_cid == CT_PASSENGERS) ||
(amount >>= 1, new_cid == CT_MAIL || new_cid == CT_GOODS) ||
(amount >>= 1, true);
/* Check the 'refit capacity' callback */
v->cargo_type = new_cid;
amount = GetCallBackResult(CB_REFIT_CAP, v->engine_type, v);
v->cargo_type = temp_cid;
if (new_cid != v->cargo_type)
cost += (_price.build_railvehicle >> 8);
num += amount;
if (flags & DC_EXEC) {
//autorefitted train cars wants to keep the cargo
//it will be checked if the cargo is valid in CmdReplaceVehicle
if (!(SkipStoppedInDepotCheck))
v->cargo_count = 0;
v->cargo_type = new_cid;
v->cargo_cap = amount;
InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
if (amount == CALLBACK_FAILED) { // callback failed, use default
CargoID old_cid = rvi->cargo_type;
/* normally, the capacity depends on the cargo type, a rail vehicle
* can carry twice as much mail/goods as normal cargo,
* and four times as much passengers */
amount = rvi->capacity;
(old_cid == CT_PASSENGERS) ||
(amount <<= 1, old_cid == CT_MAIL || old_cid == CT_GOODS) ||
(amount <<= 1, true);
(new_cid == CT_PASSENGERS) ||
(amount >>= 1, new_cid == CT_MAIL || new_cid == CT_GOODS) ||
(amount >>= 1, true);
};
if (amount != 0) {
if (new_cid != v->cargo_type)
cost += (_price.build_railvehicle >> 8);
num += amount;
if (flags & DC_EXEC) {
//autorefitted train cars wants to keep the cargo
//it will be checked if the cargo is valid in CmdReplaceVehicle
if (!(SkipStoppedInDepotCheck))
v->cargo_count = 0;
v->cargo_type = new_cid;
v->cargo_cap = amount;
InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
}
}
}
// SkipStoppedInDepotCheck is called by CmdReplace and it should only apply to the single car it is called for