cpp/openttd-patchpack/source Changeset - r14274:562f45526a0b

Changeset - r14274:562f45526a0b

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rubidium - 15 years ago 2010-01-16 22:16:28
rubidium@openttd.org

(svn r18836) -Codechange: make TrainUpdateSpeed a class function and update some comments (Terkhen)

3 files changed with 22 insertions and 22 deletions:

src/rail_cmd.cpp

src/train.h

src/train_cmd.cpp

0 comments (0 inline, 0 general)

src/rail_cmd.cpp

➞

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@@ @@ -1279,7 +1279,7 @@ static Vehicle *UpdateTrainPowerProc(Veh @@
+{
 	if (v->type != VEH_TRAIN) return NULL;
-	/* Similiar checks as in TrainPowerChanged() */
+	/* Similar checks as in Train::PowerChanged() */
 	Train *t = Train::From(v);
 	if (t->IsArticulatedPart()) return NULL;

src/train.h

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@@ @@ -139,6 +139,8 @@ struct Train : public SpecializedVehicle @@
 	void CargoChanged();
 	void PowerChanged();
 	int UpdateSpeed();
 	void UpdateAcceleration();
 	/**

src/train_cmd.cpp

➞

Show inline comments

@@ @@ -141,7 +141,6 @@ void Train::PowerChanged() @@
 /**
  * Recalculates the cached weight of a train and its vehicles. Should be called each time the cargo on
  * the consist changes.
  * @param v First vehicle of the consist.
  */
 void Train::CargoChanged()
+{
@@ @@ -2956,34 +2955,33 @@ void Train::MarkDirty() @@
  * where n is the number of straight (long) tracks the train can
  * traverse. This means that moving along a straight track costs 256
  * "speed" and a diagonal track costs 192 "speed".
  * @param v The vehicle to update the speed of.
  * @return distance to drive.
  */
-static int UpdateTrainSpeed(Train *v)
+int Train::UpdateSpeed()
+{
 	uint accel;
-	if ((v->vehstatus & VS_STOPPED) || HasBit(v->flags, VRF_REVERSING) || HasBit(v->flags, VRF_TRAIN_STUCK)) {
+	if ((this->vehstatus & VS_STOPPED) || HasBit(this->flags, VRF_REVERSING) || HasBit(this->flags, VRF_TRAIN_STUCK)) {
 		switch (_settings_game.vehicle.train_acceleration_model) {
 			default: NOT_REACHED();
 			case TAM_ORIGINAL:  accel = v->acceleration * -4; break;
 			case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_BRAKE); break;
 			case TAM_ORIGINAL:  accel = this->acceleration * -4; break;
 			case TAM_REALISTIC: accel = GetTrainAcceleration(this, AM_BRAKE); break;
+		}
 	} else {
 		switch (_settings_game.vehicle.train_acceleration_model) {
 			default: NOT_REACHED();
 			case TAM_ORIGINAL:  accel = v->acceleration * 2; break;
 			case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_ACCEL); break;
+		}
+	}
 	uint spd = v->subspeed + accel;
 	v->subspeed = (byte)spd;
 			case TAM_ORIGINAL:  accel = this->acceleration * 2; break;
 			case TAM_REALISTIC: accel = GetTrainAcceleration(this, AM_ACCEL); break;
+		}
+	}
 	uint spd = this->subspeed + accel;
 	this->subspeed = (byte)spd;
+	{
 		int tempmax = v->max_speed;
 		if (v->cur_speed > v->max_speed)
 			tempmax = v->cur_speed - (v->cur_speed / 10) - 1;
 		v->cur_speed = spd = Clamp(v->cur_speed + ((int)spd >> 8), 0, tempmax);
 		int tempmax = this->max_speed;
 		if (this->cur_speed > this->max_speed)
 			tempmax = this->cur_speed - (this->cur_speed / 10) - 1;
 		this->cur_speed = spd = Clamp(this->cur_speed + ((int)spd >> 8), 0, tempmax);
+	}
 	/* Scale speed by 3/4. Previously this was only done when the train was
@@ @@ -2995,12 +2993,12 @@ static int UpdateTrainSpeed(Train *v) @@
+	 *
 	 * The scaling is done in this direction and not by multiplying the amount
 	 * to be subtracted by 4/3 so that the leftover speed can be saved in a
-	 * byte in v->progress.
+	 * byte in this->progress.
 	 */
 	int scaled_spd = spd * 3 >> 2;
 	scaled_spd += v->progress;
 	v->progress = 0; // set later in TrainLocoHandler or TrainController
 	scaled_spd += this->progress;
 	this->progress = 0; // set later in TrainLocoHandler or TrainController
 	return scaled_spd;
+}
@@ @@ -4015,7 +4013,7 @@ static bool TrainLocoHandler(Train *v, b @@
 		return true;
+	}
-	int j = UpdateTrainSpeed(v);
+	int j = v->UpdateSpeed();
 	/* we need to invalidate the widget if we are stopping from 'Stopping 0 km/h' to 'Stopped' */
 	if (v->cur_speed == 0 && v->tcache.last_speed == 0 && (v->vehstatus & VS_STOPPED)) {

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