Mercurial Mercurial > openttd-ottdgrfs / comparison
summary | shortlog | changelog | graph | tags | bookmarks | branches | files | changeset | file | latest | revisions | annotate | diff | comparison | raw | help
src/aircraft_cmd.cpp
changeset 6519 367d6f96e23f
parent 6502 7ca154aca2b7
child 6563 d08d813ecd42
child 9895 7bd07f43b0e3
equal deleted inserted replaced
6518:c7ac357020e3 6519:367d6f96e23f 
   860 	if (!PlayVehicleSound(v, VSE_START)) {
 
   860 	if (!PlayVehicleSound(v, VSE_START)) {
 
   861 		SndPlayVehicleFx(AircraftVehInfo(v->engine_type)->sfx, v);
 
   861 		SndPlayVehicleFx(AircraftVehInfo(v->engine_type)->sfx, v);
 
   862 	}
 
   862 	}
 
   863 }
 
   863 }
 
   864 
   864 
   865 /** Special velocities for aircraft
 
   865 /**
 
       
   866  * Special velocities for aircraft
 
   866  */
 
   867  */
 
   867 enum AircraftSpeedLimits {
 
   868 enum AircraftSpeedLimits {
 
   868 	SPEED_LIMIT_NONE   =  0,  ///< No environmental speed limit. Speed limit is type dependent
 
   869 	SPEED_LIMIT_TAXI     =     50,  ///< Maximum speed of an aircraft while taxiing
 
   869 	SPEED_LIMIT_TAXI   = 12,  ///< Maximum speed of an aircraft while taxiing
 
   870 	SPEED_LIMIT_APPROACH =    230,  ///< Maximum speed of an aircraft on finals
 
   870 	SPEED_LIMIT_BROKEN = 27,  ///< Maximum speed of an aircraft that is broken
 
   871 	SPEED_LIMIT_BROKEN   =    320,  ///< Maximum speed of an aircraft that is broken
 
       
   872 	SPEED_LIMIT_HOLD     =    425,  ///< Maximum speed of an aircraft that flies the holding pattern
 
       
   873 	SPEED_LIMIT_NONE     = 0xFFFF   ///< No environmental speed limit. Speed limit is type dependent
 
   871 };
 
   874 };
 
   872 
   875 
   873 static bool UpdateAircraftSpeed(Vehicle *v, uint speed_limit)
 
   876 /**
 
   874 {
 
   877  * Sets the new speed for an aircraft
 
   875 	uint spd = v->acceleration * 2;
 
   878  * @param v The vehicle for which the speed should be obtained
 
       
   879  * @param speed_limit The maximum speed the vehicle may have.
 
       
   880  * @param hard_limit If true, the limit is directly enforced, otherwise the plane is slowed down gradually
 
       
   881  * @return The number of position updates needed within the tick
 
       
   882  */
 
       
   883 static int UpdateAircraftSpeed(Vehicle *v, uint speed_limit = SPEED_LIMIT_NONE, bool hard_limit = true)
 
       
   884 {
 
       
   885 	uint spd = v->acceleration * 16;
 
   876 	byte t;
 
   886 	byte t;
 
   877 
   887 
       
   888 	speed_limit = min(speed_limit, v->max_speed);
 
       
   889 
   878 	v->subspeed = (t=v->subspeed) + (byte)spd;
 
   890 	v->subspeed = (t=v->subspeed) + (byte)spd;
 
   879 	if (speed_limit == SPEED_LIMIT_NONE) speed_limit = v->max_speed;
 
   891 
       
   892 	if (!hard_limit && v->cur_speed > speed_limit) speed_limit = v->cur_speed - (v->cur_speed / 48);
 
       
   893 
   880 	spd = min(v->cur_speed + (spd >> 8) + (v->subspeed < t), speed_limit);
 
   894 	spd = min(v->cur_speed + (spd >> 8) + (v->subspeed < t), speed_limit);
 
   881 
   895 
   882 	/* adjust speed for broken vehicles */
 
   896 	/* adjust speed for broken vehicles */
 
   883 	if (v->vehstatus & VS_AIRCRAFT_BROKEN) spd = min(spd, SPEED_LIMIT_BROKEN);
 
   897 	if (v->vehstatus & VS_AIRCRAFT_BROKEN) spd = min(spd, SPEED_LIMIT_BROKEN);
 
   884 
   898 
   889 			InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, STATUS_BAR);
 
   903 			InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, STATUS_BAR);
 
   890 	}
 
   904 	}
 
   891 
   905 
   892 	if (!(v->direction & 1)) spd = spd * 3 / 4;
 
   906 	if (!(v->direction & 1)) spd = spd * 3 / 4;
 
   893 
   907 
   894 	if (spd == 0) return false;
 
   908 	spd += v->progress;
 
   895 
   909 	v->progress = (byte)spd;
 
   896 	if ((byte)++spd == 0) return true;
 
   910 	return spd >> 8;
 
   897 
       
   898 	v->progress = (t = v->progress) - (byte)spd;
 
       
   899 
       
   900 	return t < v->progress;
 
       
   901 }
 
   911 }
 
   902 
   912 
   903 /**
 
   913 /**
 
   904  * Gets the cruise altitude of an aircraft.
 
   914  * Gets the cruise altitude of an aircraft.
 
   905  * The cruise altitude is determined by the velocity of the vehicle
 
   915  * The cruise altitude is determined by the velocity of the vehicle
 
   920 	switch (v->direction) {
 
   930 	switch (v->direction) {
 
   921 		case DIR_N:
 
   931 		case DIR_N:
 
   922 		case DIR_NE:
 
   932 		case DIR_NE:
 
   923 		case DIR_E:
 
   933 		case DIR_E:
 
   924 		case DIR_SE:
 
   934 		case DIR_SE:
 
   925 			base_altitude += 15;
 
   935 			base_altitude += 10;
 
   926 			break;
 
   936 			break;
 
   927 
   937 
   928 		default: break;
 
   938 		default: break;
 
   929 	}
 
   939 	}
 
   930 
   940 
   931 	/* Make faster planes fly higher so that they can overtake slower ones */
 
   941 	/* Make faster planes fly higher so that they can overtake slower ones */
 
   932 	base_altitude += min(30 * (v->max_speed / 37), 90);
 
   942 	base_altitude += min(20 * (v->max_speed / 200), 90);
 
   933 
   943 
   934 	return base_altitude;
 
   944 	return base_altitude;
 
   935 }
 
   945 }
 
   936 
   946 
       
   947 /**
 
       
   948  * Controls the movement of an aircraft. This function actually moves the vehicle
 
       
   949  * on the map and takes care of minor things like sound playback.
 
       
   950  * @todo    De-mystify the cur_speed values for helicopter rotors.
 
       
   951  * @param v The vehicle that is moved. Must be the first vehicle of the chain
 
       
   952  * @return  Whether the position requested by the State Machine has been reached
 
       
   953  */
 
   937 static bool AircraftController(Vehicle *v)
 
   954 static bool AircraftController(Vehicle *v)
 
   938 {
 
   955 {
 
       
   956 	int count;
 
   939 	const Station *st = GetStation(v->u.air.targetairport);
 
   957 	const Station *st = GetStation(v->u.air.targetairport);
 
   940 
   958 
   941 	/* prevent going to 0,0 if airport is deleted. */
 
   959 	/* prevent going to 0,0 if airport is deleted. */
 
   942 	TileIndex tile = st->airport_tile;
 
   960 	TileIndex tile = st->airport_tile;
 
   943 	if (tile == 0) tile = st->xy;
 
   961 	if (tile == 0) tile = st->xy;
 
   956 		if (u->cur_speed > 32) {
 
   974 		if (u->cur_speed > 32) {
 
   957 			v->cur_speed = 0;
 
   975 			v->cur_speed = 0;
 
   958 			if (--u->cur_speed == 32) SndPlayVehicleFx(SND_18_HELICOPTER, v);
 
   976 			if (--u->cur_speed == 32) SndPlayVehicleFx(SND_18_HELICOPTER, v);
 
   959 		} else {
 
   977 		} else {
 
   960 			u->cur_speed = 32;
 
   978 			u->cur_speed = 32;
 
   961 			if (UpdateAircraftSpeed(v, SPEED_LIMIT_NONE)) {
 
   979 			count = UpdateAircraftSpeed(v);
 
       
   980 			if (count > 0) {
 
   962 				v->tile = 0;
 
   981 				v->tile = 0;
 
   963 
   982 
   964 				/* Reached altitude? */
 
   983 				/* Reached altitude? */
 
   965 				if (v->z_pos >= 184) {
 
   984 				if (v->z_pos >= 184) {
 
   966 					v->cur_speed = 0;
 
   985 					v->cur_speed = 0;
 
   967 					return true;
 
   986 					return true;
 
   968 				}
 
   987 				}
 
   969 				SetAircraftPosition(v, v->x_pos, v->y_pos, v->z_pos+1);
 
   988 				SetAircraftPosition(v, v->x_pos, v->y_pos, min(v->z_pos + count, 184));
 
   970 			}
 
   989 			}
 
   971 		}
 
   990 		}
 
   972 		return false;
 
   991 		return false;
 
   973 	}
 
   992 	}
 
   974 
   993 
   975 	/* Helicopter landing. */
 
   994 	/* Helicopter landing. */
 
   976 	if (amd->flag & AMED_HELI_LOWER) {
 
   995 	if (amd->flag & AMED_HELI_LOWER) {
 
   977 		if (UpdateAircraftSpeed(v, SPEED_LIMIT_NONE)) {
 
   996 		count = UpdateAircraftSpeed(v);
 
       
   997 		if (count > 0) {
 
   978 			if (st->airport_tile == 0) {
 
   998 			if (st->airport_tile == 0) {
 
   979 				/* FIXME - AircraftController -> if station no longer exists, do not land
 
   999 				/* FIXME - AircraftController -> if station no longer exists, do not land
 
   980 				 * helicopter will circle until sign disappears, then go to next order
 
  1000 				 * helicopter will circle until sign disappears, then go to next order
 
   981 				 * what to do when it is the only order left, right now it just stays in 1 place */
 
  1001 				 * what to do when it is the only order left, right now it just stays in 1 place */
 
   982 				v->u.air.state = FLYING;
 
  1002 				v->u.air.state = FLYING;
 
   986 
  1006 
   987 			/* Vehicle is now at the airport. */
 
  1007 			/* Vehicle is now at the airport. */
 
   988 			v->tile = st->airport_tile;
 
  1008 			v->tile = st->airport_tile;
 
   989 
  1009 
   990 			/* Find altitude of landing position. */
 
  1010 			/* Find altitude of landing position. */
 
   991 			uint z = GetSlopeZ(x, y) + 1 + afc->delta_z;
 
  1011 			int z = GetSlopeZ(x, y) + 1 + afc->delta_z;
 
   992 
  1012 
   993 			if (z == v->z_pos) {
 
  1013 			if (z == v->z_pos) {
 
   994 				Vehicle *u = v->next->next;
 
  1014 				Vehicle *u = v->next->next;
 
   995 
  1015 
   996 				/*  Increase speed of rotors. When speed is 80, we've landed. */
 
  1016 				/*  Increase speed of rotors. When speed is 80, we've landed. */
 
   997 				if (u->cur_speed >= 80) return true;
 
  1017 				if (u->cur_speed >= 80) return true;
 
   998 				u->cur_speed += 4;
 
  1018 				u->cur_speed += 4;
 
   999 			} else if (v->z_pos > z) {
 
  1019 			} else if (v->z_pos > z) {
 
  1000 				SetAircraftPosition(v, v->x_pos, v->y_pos, v->z_pos-1);
 
  1020 				SetAircraftPosition(v, v->x_pos, v->y_pos, max(v->z_pos - count, z));
 
  1001 			} else {
 
  1021 			} else {
 
  1002 				SetAircraftPosition(v, v->x_pos, v->y_pos, v->z_pos+1);
 
  1022 				SetAircraftPosition(v, v->x_pos, v->y_pos, min(v->z_pos + count, z));
 
  1003 			}
 
  1023 			}
 
  1004 		}
 
  1024 		}
 
  1005 		return false;
 
  1025 		return false;
 
  1006 	}
 
  1026 	}
 
  1007 
  1027 
  1008 	/* Get distance from destination pos to current pos. */
 
  1028 	/* Get distance from destination pos to current pos. */
 
  1009 	uint dist = myabs(x + amd->x - v->x_pos) +  myabs(y + amd->y - v->y_pos);
 
  1029 	uint dist = myabs(x + amd->x - v->x_pos) +  myabs(y + amd->y - v->y_pos);
 
  1010 
  1030 
  1011 	/* Need exact position? */
 
  1031 	/* Need exact position? */
 
  1012 	if (!(amd->flag & AMED_EXACTPOS) && dist <= (amd->flag & AMED_SLOWTURN ? 8U : 4U))
 
  1032 	if (!(amd->flag & AMED_EXACTPOS) && dist <= (amd->flag & AMED_SLOWTURN ? 8U : 4U)) return true;
 
  1013 		return true;
 
       
  1014 
  1033 
  1015 	/* At final pos? */
 
  1034 	/* At final pos? */
 
  1016 	if (dist == 0) {
 
  1035 	if (dist == 0) {
 
  1017 		/* Change direction smoothly to final direction. */
 
  1036 		/* Change direction smoothly to final direction. */
 
  1018 		DirDiff dirdiff = DirDifference(amd->direction, v->direction);
 
  1037 		DirDiff dirdiff = DirDifference(amd->direction, v->direction);
 
  1030 
  1049 
  1031 		SetAircraftPosition(v, v->x_pos, v->y_pos, v->z_pos);
 
  1050 		SetAircraftPosition(v, v->x_pos, v->y_pos, v->z_pos);
 
  1032 		return false;
 
  1051 		return false;
 
  1033 	}
 
  1052 	}
 
  1034 
  1053 
  1035 	if (!UpdateAircraftSpeed(v, ((amd->flag & AMED_NOSPDCLAMP) == 0) ? SPEED_LIMIT_TAXI : SPEED_LIMIT_NONE)) return false;
 
  1054 	uint speed_limit = SPEED_LIMIT_TAXI;
 
       
  1055 	bool hard_limit = true;
 
       
  1056 
       
  1057 	if (amd->flag & AMED_NOSPDCLAMP)   speed_limit = SPEED_LIMIT_NONE;
 
       
  1058 	if (amd->flag & AMED_HOLD)       { speed_limit = SPEED_LIMIT_HOLD;     hard_limit = false; }
 
       
  1059 	if (amd->flag & AMED_LAND)       { speed_limit = SPEED_LIMIT_APPROACH; hard_limit = false; }
 
       
  1060 	if (amd->flag & AMED_BRAKE)      { speed_limit = SPEED_LIMIT_TAXI;     hard_limit = false; }
 
       
  1061 
       
  1062 	count = UpdateAircraftSpeed(v, speed_limit, hard_limit);
 
       
  1063 	if (count == 0) return false;
 
  1036 
  1064 
  1037 	if (v->load_unload_time_rem != 0) v->load_unload_time_rem--;
 
  1065 	if (v->load_unload_time_rem != 0) v->load_unload_time_rem--;
 
  1038 
  1066 
  1039 	/* Turn. Do it slowly if in the air. */
 
  1067 	do {
 
  1040 	Direction newdir = GetDirectionTowards(v, x + amd->x, y + amd->y);
 
  1068 		/* Turn. Do it slowly if in the air. */
 
  1041 	if (newdir != v->direction) {
 
  1069 		Direction newdir = GetDirectionTowards(v, x + amd->x, y + amd->y);
 
  1042 		if (amd->flag & AMED_SLOWTURN) {
 
  1070 		if (newdir != v->direction) {
 
  1043 			if (v->load_unload_time_rem == 0) v->load_unload_time_rem = 8;
 
       
  1044 			v->direction = newdir;
 
  1071 			v->direction = newdir;
 
  1045 		} else {
 
  1072 			if (amd->flag & AMED_SLOWTURN) {
 
  1046 			v->cur_speed >>= 1;
 
  1073 				if (v->load_unload_time_rem == 0) v->load_unload_time_rem = 8;
 
  1047 			v->direction = newdir;
 
  1074 			} else {
 
  1048 		}
 
  1075 				v->cur_speed >>= 1;
 
  1049 	}
 
  1076 			}
 
  1050 
  1077 		}
 
  1051 	/* Move vehicle. */
 
  1078 
  1052 	GetNewVehiclePosResult gp = GetNewVehiclePos(v);
 
  1079 		/* Move vehicle. */
 
  1053 	v->tile = gp.new_tile;
 
  1080 		GetNewVehiclePosResult gp = GetNewVehiclePos(v);
 
  1054 
  1081 		v->tile = gp.new_tile;
 
  1055 	/* If vehicle is in the air, use tile coordinate 0. */
 
  1082 		/* If vehicle is in the air, use tile coordinate 0. */
 
  1056 	if (amd->flag & (AMED_TAKEOFF | AMED_SLOWTURN | AMED_LAND)) v->tile = 0;
 
  1083 		// if (amd->flag & (AMED_TAKEOFF | AMED_SLOWTURN | AMED_LAND)) v->tile = 0;
 
  1057 
  1084 
  1058 	/* Adjust Z for land or takeoff? */
 
  1085 		/* Adjust Z for land or takeoff? */
 
  1059 	uint z = v->z_pos;
 
  1086 		uint z = v->z_pos;
 
  1060 
  1087 
  1061 	if (amd->flag & AMED_TAKEOFF) {
 
  1088 		if (amd->flag & AMED_TAKEOFF) {
 
  1062 		z = min(z + 2, GetAircraftFlyingAltitude(v));
 
  1089 			z = min(z + 2, GetAircraftFlyingAltitude(v));
 
  1063 	}
 
  1090 		}
 
  1064 
  1091 
  1065 	if (amd->flag & AMED_LAND) {
 
  1092 		if ((amd->flag & AMED_HOLD) && (z > 150)) z--;
 
  1066 		if (st->airport_tile == 0) {
 
  1093 
  1067 			v->u.air.state = FLYING;
 
  1094 		if (amd->flag & AMED_LAND) {
 
  1068 			AircraftNextAirportPos_and_Order(v);
 
  1095 			if (st->airport_tile == 0) {
 
  1069 			/* get aircraft back on running altitude */
 
  1096 				/* Airport has been removed, abort the landing procedure */
 
  1070 			SetAircraftPosition(v, gp.x, gp.y, GetAircraftFlyingAltitude(v));
 
  1097 				v->u.air.state = FLYING;
 
  1071 			return false;
 
  1098 				AircraftNextAirportPos_and_Order(v);
 
  1072 		}
 
  1099 				/* get aircraft back on running altitude */
 
  1073 
  1100 				SetAircraftPosition(v, gp.x, gp.y, GetAircraftFlyingAltitude(v));
 
  1074 		uint curz = GetSlopeZ(x, y) + 1;
 
  1101 				continue;
 
  1075 
  1102 			}
 
  1076 		if (curz > z) {
 
  1103 
  1077 			z++;
 
  1104 			uint curz = GetSlopeZ(x, y) + 1;
 
  1078 		} else {
 
  1105 
  1079 			int t = max(1U, dist - 4);
 
  1106 			if (curz > z) {
 
  1080 
  1107 				z++;
 
  1081 			z -= ((z - curz) + t - 1) / t;
 
  1108 			} else {
 
  1082 			if (z < curz) z = curz;
 
  1109 				int t = max(1U, dist - 4);
 
  1083 		}
 
  1110 
  1084 	}
 
  1111 				z -= ((z - curz) + t - 1) / t;
 
  1085 
  1112 				if (z < curz) z = curz;
 
  1086 	/* We've landed. Decrase speed when we're reaching end of runway. */
 
  1113 			}
 
  1087 	if (amd->flag & AMED_BRAKE) {
 
  1114 		}
 
  1088 		uint curz = GetSlopeZ(x, y) + 1;
 
  1115 
  1089 
  1116 		/* We've landed. Decrase speed when we're reaching end of runway. */
 
  1090 		if (z > curz) {
 
  1117 		if (amd->flag & AMED_BRAKE) {
 
  1091 			z--;
 
  1118 			uint curz = GetSlopeZ(x, y) + 1;
 
  1092 		} else if (z < curz) {
 
  1119 
  1093 			z++;
 
  1120 			if (z > curz) {
 
  1094 		}
 
  1121 				z--;
 
  1095 
  1122 			} else if (z < curz) {
 
  1096 		if (dist < 64 && v->cur_speed > 12) v->cur_speed -= 4;
 
  1123 				z++;
 
  1097 	}
 
  1124 			}
 
  1098 
  1125 
  1099 	SetAircraftPosition(v, gp.x, gp.y, z);
 
  1126 		}
 
       
  1127 
       
  1128 		SetAircraftPosition(v, gp.x, gp.y, z);
 
       
  1129 	} while (--count != 0);
 
  1100 	return false;
 
  1130 	return false;
 
  1101 }
 
  1131 }
 
  1102 
  1132 
  1103 
  1133 
  1104 static void HandleCrashedAircraft(Vehicle *v)
 
  1134 static void HandleCrashedAircraft(Vehicle *v)
 
  2065 
  2095 
  2066 	if (v->subtype == AIR_HELICOPTER) HelicopterTickHandler(v);
 
  2096 	if (v->subtype == AIR_HELICOPTER) HelicopterTickHandler(v);
 
  2067 
  2097 
  2068 	AgeAircraftCargo(v);
 
  2098 	AgeAircraftCargo(v);
 
  2069 
  2099 
  2070 	for (uint i = 0; i != 6; i++) {
 
  2100 	for (uint i = 0; i != 2; i++) {
 
  2071 		AircraftEventHandler(v, i);
 
  2101 		AircraftEventHandler(v, i);
 
  2072 		if (v->type != VEH_Aircraft) // In case it was deleted
 
  2102 		if (v->type != VEH_Aircraft) // In case it was deleted
 
  2073 			break;
 
  2103 			break;
 
  2074 	}
 
  2104 	}
 
  2075 }
 
  2105 }
openttd-ottdgrfs