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-rw-r--r--src/train_cmd.cpp95
1 files changed, 83 insertions, 12 deletions
diff --git a/src/train_cmd.cpp b/src/train_cmd.cpp
index fd7c17127..f2be43e03 100644
--- a/src/train_cmd.cpp
+++ b/src/train_cmd.cpp
@@ -51,6 +51,8 @@
#include "order_func.h"
#include "newgrf_station.h"
#include "effectvehicle_func.h"
+#include "gamelog.h"
+#include "network/network.h"
#include "table/strings.h"
#include "table/train_cmd.h"
@@ -181,13 +183,76 @@ static void TrainCargoChanged(Vehicle *v)
}
+/** Logs a bug in GRF and shows a warning message if this
+ * is for the first time this happened.
+ * @param u first vehicle of chain
+ */
+static void RailVehicleLengthChanged(const Vehicle *u)
+{
+ /* show a warning once for each engine in whole game and once for each GRF after each game load */
+ const Engine *engine = GetEngine(u->engine_type);
+ uint32 grfid = engine->grffile->grfid;
+ GRFConfig *grfconfig = GetGRFConfig(grfid);
+ if (GamelogGRFBugReverse(grfid, engine->internal_id) || !HasBit(grfconfig->grf_bugs, GBUG_VEH_LENGTH)) {
+ SetBit(grfconfig->grf_bugs, GBUG_VEH_LENGTH);
+ SetDParamStr(0, grfconfig->name);
+ SetDParam(1, u->engine_type);
+ ShowErrorMessage(STR_NEWGRF_BROKEN_VEHICLE_LENGTH, STR_NEWGRF_BROKEN, 0, 0);
+
+ /* debug output */
+ char buffer[512];
+
+ SetDParamStr(0, grfconfig->name);
+ GetString(buffer, STR_NEWGRF_BROKEN, lastof(buffer));
+ DEBUG(grf, 0, "%s", buffer + 3);
+
+ SetDParam(1, u->engine_type);
+ GetString(buffer, STR_NEWGRF_BROKEN_VEHICLE_LENGTH, lastof(buffer));
+ DEBUG(grf, 0, "%s", buffer + 3);
+
+#ifdef ENABLE_NETWORK
+ if (!_networking) _pause_game = -1;
+#else
+ _pause_game = -1;
+#endif
+ }
+}
+
+/** Checks if lengths of all rail vehicles are valid. If not, shows an error message. */
+void CheckTrainsLengths()
+{
+ const Vehicle *v;
+
+ FOR_ALL_VEHICLES(v) {
+ if (v->type == VEH_TRAIN && v->First() == v && !(v->vehstatus & VS_CRASHED)) {
+ for (const Vehicle *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
+ if (u->u.rail.track != TRACK_BIT_DEPOT) {
+ if ((w->u.rail.track != TRACK_BIT_DEPOT &&
+ max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->u.rail.cached_veh_length) ||
+ (w->u.rail.track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
+ SetDParam(0, v->index);
+ SetDParam(1, v->owner);
+ ShowErrorMessage(INVALID_STRING_ID, STR_BROKEN_VEHICLE_LENGTH, 0, 0);
+#ifdef ENABLE_NETWORK
+ if (!_networking) _pause_game = -1;
+#else
+ _pause_game = -1;
+#endif
+ }
+ }
+ }
+ }
+ }
+}
+
/**
* Recalculates the cached stuff of a train. Should be called each time a vehicle is added
* to/removed from the chain, and when the game is loaded.
* Note: this needs to be called too for 'wagon chains' (in the depot, without an engine)
* @param v First vehicle of the chain.
+ * @param same_length should length of vehicles stay the same?
*/
-void TrainConsistChanged(Vehicle *v)
+void TrainConsistChanged(Vehicle *v, bool same_length)
{
uint16 max_speed = UINT16_MAX;
@@ -295,8 +360,14 @@ void TrainConsistChanged(Vehicle *v)
veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
}
if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
- veh_len = Clamp(veh_len, 0, u->Next() == NULL ? 7 : 5); // the clamp on vehicles not the last in chain is stricter, as too short wagons can break the 'follow next vehicle' code
- u->u.rail.cached_veh_length = 8 - veh_len;
+ veh_len = 8 - Clamp(veh_len, 0, u->Next() == NULL ? 7 : 5); // the clamp on vehicles not the last in chain is stricter, as too short wagons can break the 'follow next vehicle' code
+
+ /* verify length hasn't changed */
+ if (same_length && veh_len != u->u.rail.cached_veh_length) RailVehicleLengthChanged(u);
+
+ /* update vehicle length? */
+ if (!same_length) u->u.rail.cached_veh_length = veh_len;
+
v->u.rail.cached_total_length += u->u.rail.cached_veh_length;
}
@@ -618,7 +689,7 @@ static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, uint32 fla
_new_vehicle_id = v->index;
VehiclePositionChanged(v);
- TrainConsistChanged(v->First());
+ TrainConsistChanged(v->First(), false);
UpdateTrainGroupID(v->First());
InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
@@ -794,7 +865,7 @@ CommandCost CmdBuildRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32
AddArticulatedParts(vl, VEH_TRAIN);
}
- TrainConsistChanged(v);
+ TrainConsistChanged(v, false);
UpdateTrainGroupID(v);
if (!HasBit(p2, 1) && !(flags & DC_AUTOREPLACE)) { // check if the cars should be added to the new vehicle
@@ -1247,7 +1318,7 @@ CommandCost CmdMoveRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32 p
if (src_head != NULL) {
NormaliseTrainConsist(src_head);
- TrainConsistChanged(src_head);
+ TrainConsistChanged(src_head, false);
UpdateTrainGroupID(src_head);
if (IsFrontEngine(src_head)) {
/* Update the refit button and window */
@@ -1260,7 +1331,7 @@ CommandCost CmdMoveRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32 p
if (dst_head != NULL) {
NormaliseTrainConsist(dst_head);
- TrainConsistChanged(dst_head);
+ TrainConsistChanged(dst_head, false);
UpdateTrainGroupID(dst_head);
if (IsFrontEngine(dst_head)) {
/* Update the refit button and window */
@@ -1432,7 +1503,7 @@ CommandCost CmdSellRailWagon(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
/* 5. If the train still exists, update its acceleration, window, etc. */
if (first != NULL) {
NormaliseTrainConsist(first);
- TrainConsistChanged(first);
+ TrainConsistChanged(first, false);
UpdateTrainGroupID(first);
if (IsFrontEngine(first)) InvalidateWindow(WC_VEHICLE_REFIT, first->index);
}
@@ -1497,7 +1568,7 @@ CommandCost CmdSellRailWagon(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
/* 3. If it is still a valid train after selling, update its acceleration and cached values */
if (flags & DC_EXEC && first != NULL) {
NormaliseTrainConsist(first);
- TrainConsistChanged(first);
+ TrainConsistChanged(first, false);
UpdateTrainGroupID(first);
InvalidateWindow(WC_VEHICLE_REFIT, first->index);
}
@@ -1832,7 +1903,7 @@ static void ReverseTrainDirection(Vehicle *v)
ClrBit(v->u.rail.flags, VRF_REVERSING);
/* recalculate cached data */
- TrainConsistChanged(v);
+ TrainConsistChanged(v, true);
/* update all images */
for (Vehicle *u = v; u != NULL; u = u->Next()) u->cur_image = u->GetImage(u->direction);
@@ -2009,7 +2080,7 @@ CommandCost CmdRefitRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32
_returned_refit_capacity = num;
/* Update the train's cached variables */
- if (flags & DC_EXEC) TrainConsistChanged(GetVehicle(p1)->First());
+ if (flags & DC_EXEC) TrainConsistChanged(GetVehicle(p1)->First(), false);
return cost;
}
@@ -3147,7 +3218,7 @@ static void DeleteLastWagon(Vehicle *v)
InvalidateWindow(WC_COMPANY, v->owner);
} else {
/* Recalculate cached train properties */
- TrainConsistChanged(first);
+ TrainConsistChanged(first, false);
/* Update the depot window if the first vehicle is in depot -
* if v == first, then it is updated in PreDestructor() */
if (first->u.rail.track == TRACK_BIT_DEPOT) {
generated by cgit v1.2.3-54-g00ecf (git 2.44.0) at 2024-07-13 18:38:57 +0000