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(svn r8703) -Codechange/cleanup: some magic numbers -> enums and other small coding style changes to the ShipController and TrainController.

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rubidium
2007-02-13 11:29:20 +00:00
parent 0ba18a677c
commit 4d0f8bac27
2 changed files with 31 additions and 31 deletions
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39
src/train_cmd.cpp
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@@ -2995,7 +2995,7 @@ static void TrainController(Vehicle *v, bool update_image)
{
Vehicle *prev;
GetNewVehiclePosResult gp;
uint32 r, tracks,ts;
uint32 r, tracks, ts;
Trackdir i;
DiagDirection enterdir;
Direction dir;
@@ -3013,11 +3013,11 @@ static void TrainController(Vehicle *v, bool update_image)
if (GetNewVehiclePos(v, &gp)) {
/* Staying in the old tile */
if (v->u.rail.track == TRACK_BIT_DEPOT) {
/* inside depot */
/* Inside depot */
gp.x = v->x_pos;
gp.y = v->y_pos;
} else {
/* is not inside depot */
/* Not inside depot */
if (IsFrontEngine(v) && !TrainCheckIfLineEnds(v)) return;
@@ -3043,7 +3043,7 @@ static void TrainController(Vehicle *v, bool update_image)
/* Determine what direction we're entering the new tile from */
dir = GetNewVehicleDirectionByTile(gp.new_tile, gp.old_tile);
enterdir = DirToDiagDir(dir);
assert(enterdir==0 || enterdir==1 || enterdir==2 || enterdir==3);
assert(IsValidDiagDirection(enterdir));
/* Get the status of the tracks in the new tile and mask
* away the bits that aren't reachable. */
@@ -3060,17 +3060,11 @@ static void TrainController(Vehicle *v, bool update_image)
bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
}
if (bits == TRACK_BIT_NONE) {
//debug("%x == 0", bits);
goto invalid_rail;
}
if (bits == TRACK_BIT_NONE) goto invalid_rail;
/* Check if the new tile contrains tracks that are compatible
* with the current train, if not, bail out. */
if (!CheckCompatibleRail(v, gp.new_tile)) {
//debug("!CheckCompatibleRail(%p, %x)", v, gp.new_tile);
goto invalid_rail;
}
if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
if (prev == NULL) {
/* Currently the locomotive is active. Determine which one of the
@@ -3079,16 +3073,24 @@ static void TrainController(Vehicle *v, bool update_image)
assert(chosen_track & tracks);
/* Check if it's a red signal and that force proceed is not clicked. */
if ( (tracks>>16)&chosen_track && v->u.rail.force_proceed == 0) goto red_light;
if ((tracks >> 16) & chosen_track && v->u.rail.force_proceed == 0) goto red_light;
} else {
static byte _matching_tracks[8] = {0x30, 1, 0xC, 2, 0x30, 1, 0xC, 2};
static const TrackBits _matching_tracks[8] = {
TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y,
TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y
};
/* The wagon is active, simply follow the prev vehicle. */
chosen_track = (TrackBits)(byte)(_matching_tracks[GetDirectionToVehicle(prev, gp.x, gp.y)] & bits);
}
/* make sure chosen track is a valid track */
assert(chosen_track==1 || chosen_track==2 || chosen_track==4 || chosen_track==8 || chosen_track==16 || chosen_track==32);
/* Make sure chosen track is a valid track */
assert(
chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
/* Update XY to reflect the entrance to the new tile, and select the direction to use */
{
@@ -3126,15 +3128,14 @@ static void TrainController(Vehicle *v, bool update_image)
/* Signals can only change when the first
* (above) or the last vehicle moves. */
if (v->next == NULL)
TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
if (v->next == NULL) TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
if (prev == NULL) AffectSpeedByDirChange(v, chosen_dir);
v->direction = chosen_dir;
}
} else {
/* in tunnel on on a bridge */
/* In tunnel or on a bridge */
GetNewVehiclePos(v, &gp);
SetSpeedLimitOnBridge(v);