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(svn r9299) -Fix (FS#675,FS#660): Small micro-movements on airports (of <4 pixels) caused odd aircraft movements. On oilrigs, this caused a full crash as movement would take helicopter out of airport/station tile.

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Corrected by maneuvering aircraft directly over these tiny movements, rather than relying on movement by changing facing.
This commit is contained in:
richk 2007-03-18 21:44:00 +00:00
parent 408442d575
commit f44cbfe1fe
1 changed files with 29 additions and 10 deletions
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39
src/aircraft_cmd.cpp
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@ -1063,19 +1063,38 @@ static bool AircraftController(Vehicle *v)
if (v->load_unload_time_rem != 0) v->load_unload_time_rem--;
do {
/* Turn. Do it slowly if in the air. */
Direction newdir = GetDirectionTowards(v, x + amd->x, y + amd->y);
if (newdir != v->direction) {
v->direction = newdir;
if (amd->flag & AMED_SLOWTURN) {
if (v->load_unload_time_rem == 0) v->load_unload_time_rem = 8;
} else {
v->cur_speed >>= 1;
GetNewVehiclePosResult gp;
if (dist < 4) {
/* move vehicle one pixel towards target */
gp.x = (v->x_pos != (x + amd->x)) ?
v->x_pos + ((x + amd->x > v->x_pos) ? 1 : -1) :
v->x_pos;
gp.y = (v->y_pos != (y + amd->y)) ?
v->y_pos + ((y + amd->y > v->y_pos) ? 1 : -1) :
v->y_pos;
/* Oilrigs must keep v->tile as st->airport_tile, since the landing pad is in a non-airport tile */
gp.new_tile = (st->airport_type == AT_OILRIG) ? st->airport_tile : TileVirtXY(gp.x, gp.y);
} else {
/* Turn. Do it slowly if in the air. */
Direction newdir = GetDirectionTowards(v, x + amd->x, y + amd->y);
if (newdir != v->direction) {
v->direction = newdir;
if (amd->flag & AMED_SLOWTURN) {
if (v->load_unload_time_rem == 0) v->load_unload_time_rem = 8;
} else {
v->cur_speed >>= 1;
}
}
/* Move vehicle. */
gp = GetNewVehiclePos(v);
}
/* Move vehicle. */
GetNewVehiclePosResult gp = GetNewVehiclePos(v);
v->tile = gp.new_tile;
/* If vehicle is in the air, use tile coordinate 0. */
// if (amd->flag & (AMED_TAKEOFF | AMED_SLOWTURN | AMED_LAND)) v->tile = 0;