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(svn r15671) -Codechange: bit of coding style/clarification.

This commit is contained in:
rubidium 2009-03-11 15:00:40 +00:00
parent bdab37b11a
commit 66e0fcdd01
1 changed files with 25 additions and 38 deletions
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63
src/roadveh_cmd.cpp
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@ -1348,12 +1348,6 @@ static bool CanBuildTramTrackOnTile(CompanyID c, TileIndex t, RoadBits r)
static bool IndividualRoadVehicleController(Vehicle *v, const Vehicle *prev)
{
Direction new_dir;
Direction old_dir;
RoadDriveEntry rd;
int x, y;
uint32 r;
if (v->u.road.overtaking != 0) {
if (IsTileType(v->tile, MP_STATION)) {
/* Force us to be not overtaking! */
@ -1406,16 +1400,13 @@ static bool IndividualRoadVehicleController(Vehicle *v, const Vehicle *prev)
/* Get move position data for next frame.
* For a drive-through road stop use 'straight road' move data.
* In this case v->u.road.state is masked to give the road stop entry direction. */
rd = _road_drive_data[v->u.road.roadtype][(
RoadDriveEntry rd = _road_drive_data[v->u.road.roadtype][(
(HasBit(v->u.road.state, RVS_IN_DT_ROAD_STOP) ? v->u.road.state & RVSB_ROAD_STOP_TRACKDIR_MASK : v->u.road.state) +
(_settings_game.vehicle.road_side << RVS_DRIVE_SIDE)) ^ v->u.road.overtaking][v->u.road.frame + 1];
if (rd.x & RDE_NEXT_TILE) {
TileIndex tile = v->tile + TileOffsByDiagDir((DiagDirection)(rd.x & 3));
Trackdir dir;
uint32 r;
Direction newdir;
const RoadDriveEntry *rdp;
if (IsRoadVehFront(v)) {
/* If this is the front engine, look for the right path. */
@ -1486,21 +1477,21 @@ again:
}
/* Get position data for first frame on the new tile */
rdp = _road_drive_data[v->u.road.roadtype][(dir + (_settings_game.vehicle.road_side << RVS_DRIVE_SIDE)) ^ v->u.road.overtaking];
const RoadDriveEntry *rdp = _road_drive_data[v->u.road.roadtype][(dir + (_settings_game.vehicle.road_side << RVS_DRIVE_SIDE)) ^ v->u.road.overtaking];
x = TileX(tile) * TILE_SIZE + rdp[start_frame].x;
y = TileY(tile) * TILE_SIZE + rdp[start_frame].y;
int x = TileX(tile) * TILE_SIZE + rdp[start_frame].x;
int y = TileY(tile) * TILE_SIZE + rdp[start_frame].y;
newdir = RoadVehGetSlidingDirection(v, x, y);
Direction new_dir = RoadVehGetSlidingDirection(v, x, y);
if (IsRoadVehFront(v)) {
Vehicle *u = RoadVehFindCloseTo(v, x, y, newdir);
Vehicle *u = RoadVehFindCloseTo(v, x, y, new_dir);
if (u != NULL) {
v->cur_speed = u->First()->cur_speed;
return false;
}
}
r = VehicleEnterTile(v, tile, x, y);
uint32 r = VehicleEnterTile(v, tile, x, y);
if (HasBit(r, VETS_CANNOT_ENTER)) {
if (!IsTileType(tile, MP_TUNNELBRIDGE)) {
v->cur_speed = 0;
@ -1536,12 +1527,12 @@ again:
v->u.road.state = (byte)dir;
v->u.road.frame = start_frame;
}
if (newdir != v->direction) {
v->direction = newdir;
if (new_dir != v->direction) {
v->direction = new_dir;
v->cur_speed -= v->cur_speed >> 2;
}
v->cur_image = v->GetImage(newdir);
v->cur_image = v->GetImage(v->direction);
v->UpdateDeltaXY(v->direction);
RoadZPosAffectSpeed(v, SetRoadVehPosition(v, x, y));
return true;
@ -1550,10 +1541,6 @@ again:
if (rd.x & RDE_TURNED) {
/* Vehicle has finished turning around, it will now head back onto the same tile */
Trackdir dir;
uint32 r;
Direction newdir;
const RoadDriveEntry *rdp;
uint turn_around_start_frame = RVC_TURN_AROUND_START_FRAME;
RoadBits tram;
@ -1589,15 +1576,15 @@ again:
return false;
}
rdp = _road_drive_data[v->u.road.roadtype][(_settings_game.vehicle.road_side << RVS_DRIVE_SIDE) + dir];
const RoadDriveEntry *rdp = _road_drive_data[v->u.road.roadtype][(_settings_game.vehicle.road_side << RVS_DRIVE_SIDE) + dir];
x = TileX(v->tile) * TILE_SIZE + rdp[turn_around_start_frame].x;
y = TileY(v->tile) * TILE_SIZE + rdp[turn_around_start_frame].y;
int x = TileX(v->tile) * TILE_SIZE + rdp[turn_around_start_frame].x;
int y = TileY(v->tile) * TILE_SIZE + rdp[turn_around_start_frame].y;
newdir = RoadVehGetSlidingDirection(v, x, y);
if (IsRoadVehFront(v) && RoadVehFindCloseTo(v, x, y, newdir) != NULL) return false;
Direction new_dir = RoadVehGetSlidingDirection(v, x, y);
if (IsRoadVehFront(v) && RoadVehFindCloseTo(v, x, y, new_dir) != NULL) return false;
r = VehicleEnterTile(v, v->tile, x, y);
uint32 r = VehicleEnterTile(v, v->tile, x, y);
if (HasBit(r, VETS_CANNOT_ENTER)) {
v->cur_speed = 0;
return false;
@ -1606,12 +1593,12 @@ again:
v->u.road.state = dir;
v->u.road.frame = turn_around_start_frame;
if (newdir != v->direction) {
v->direction = newdir;
if (new_dir != v->direction) {
v->direction = new_dir;
v->cur_speed -= v->cur_speed >> 2;
}
v->cur_image = v->GetImage(newdir);
v->cur_image = v->GetImage(v->direction);
v->UpdateDeltaXY(v->direction);
RoadZPosAffectSpeed(v, SetRoadVehPosition(v, x, y));
return true;
@ -1627,10 +1614,10 @@ again:
}
/* Calculate new position for the vehicle */
x = (v->x_pos & ~15) + (rd.x & 15);
y = (v->y_pos & ~15) + (rd.y & 15);
int x = (v->x_pos & ~15) + (rd.x & 15);
int y = (v->y_pos & ~15) + (rd.y & 15);
new_dir = RoadVehGetSlidingDirection(v, x, y);
Direction new_dir = RoadVehGetSlidingDirection(v, x, y);
if (IsRoadVehFront(v) && !IsInsideMM(v->u.road.state, RVSB_IN_ROAD_STOP, RVSB_IN_ROAD_STOP_END)) {
/* Vehicle is not in a road stop.
@ -1646,13 +1633,13 @@ again:
}
}
old_dir = v->direction;
Direction old_dir = v->direction;
if (new_dir != old_dir) {
v->direction = new_dir;
v->cur_speed -= (v->cur_speed >> 2);
if (old_dir != v->u.road.state) {
/* The vehicle is in a road stop */
v->cur_image = v->GetImage(new_dir);
v->cur_image = v->GetImage(v->direction);
v->UpdateDeltaXY(v->direction);
SetRoadVehPosition(v, v->x_pos, v->y_pos);
/* Note, return here means that the frame counter is not incremented
@ -1761,7 +1748,7 @@ again:
/* Check tile position conditions - i.e. stop position in depot,
* entry onto bridge or into tunnel */
r = VehicleEnterTile(v, v->tile, x, y);
uint32 r = VehicleEnterTile(v, v->tile, x, y);
if (HasBit(r, VETS_CANNOT_ENTER)) {
v->cur_speed = 0;
return false;