/**
* @brief Check if the ufo can shoot back at phalanx aircraft
* @param[in] campaign The campaign data structure
* @param[in,out] ufo The ufo to check the shotting for
* @param[in,out] phalanxAircraft The possible target
*/
void UFO_CheckShootBack (const campaign_t* campaign, aircraft_t *ufo, aircraft_t* phalanxAircraft)
{
/* check if the ufo is already attacking an aircraft */
if (ufo->aircraftTarget) {
/* check if the target flee in a base */
if (AIR_IsAircraftOnGeoscape(ufo->aircraftTarget))
AIRFIGHT_ExecuteActions(campaign, ufo, ufo->aircraftTarget);
else {
ufo->aircraftTarget = NULL;
CP_UFOProceedMission(campaign, ufo);
}
} else {
/* check that aircraft is flying */
if (AIR_IsAircraftOnGeoscape(phalanxAircraft))
UFO_SendPursuingAircraft(ufo, phalanxAircraft);
}
}
/**
* @brief Check if the ufo can shoot at a PHALANX aircraft
*/
static void UFO_SearchAircraftTarget (const campaign_t* campaign, aircraft_t *ufo)
{
float distance = 999999.;
/* UFO never try to attack a PHALANX aircraft except if they came on earth in that aim */
if (ufo->mission->stage != STAGE_INTERCEPT) {
/* Check if UFO is defending itself */
if (ufo->aircraftTarget)
UFO_CheckShootBack(campaign, ufo, ufo->aircraftTarget);
return;
}
/* check if the ufo is already attacking an aircraft */
if (ufo->aircraftTarget) {
/* check if the target disappeared from geoscape (fled in a base) */
if (AIR_IsAircraftOnGeoscape(ufo->aircraftTarget))
AIRFIGHT_ExecuteActions(campaign, ufo, ufo->aircraftTarget);
else
ufo->aircraftTarget = NULL;
return;
}
ufo->status = AIR_TRANSIT;
AIR_Foreach(phalanxAircraft) {
/* check that aircraft is flying */
if (AIR_IsAircraftOnGeoscape(phalanxAircraft)) {
/* get the distance from ufo to aircraft */
const float dist = GetDistanceOnGlobe(ufo->pos, phalanxAircraft->pos);
/* check out of reach */
if (dist > MAX_DETECTING_RANGE)
continue;
/* choose the nearest target */
if (dist < distance) {
distance = dist;
if (UFO_SendPursuingAircraft(ufo, phalanxAircraft) && UFO_IsUFOSeenOnGeoscape(ufo)) {
/* stop time and notify */
MSO_CheckAddNewMessage(NT_UFO_ATTACKING, _("Notice"), va(_("A UFO is flying toward %s"), phalanxAircraft->name), qfalse,
MSG_STANDARD, NULL);
/** @todo present a popup with possible orders like: return to base, attack the ufo, try to flee the rockets */
}
}
}
}
}
/**
* @brief Check if the ufo can shoot at a PHALANX aircraft and whether it should follow another ufo
*/
static void UFO_SearchAircraftTarget (const campaign_t* campaign, aircraft_t* ufo, float maxDetectionRange = MAX_DETECTING_RANGE)
{
float distance = 999999.;
/* UFO never try to attack a PHALANX aircraft except if they came on earth in that aim */
if (ufo->mission->stage != STAGE_INTERCEPT) {
/* Check if UFO is defending itself */
if (ufo->aircraftTarget)
UFO_CheckShootBack(campaign, ufo, ufo->aircraftTarget);
return;
}
/* check if the ufo is already attacking an aircraft */
if (ufo->aircraftTarget) {
/* check if the target disappeared from geoscape (fled in a base) */
if (AIR_IsAircraftOnGeoscape(ufo->aircraftTarget))
AIRFIGHT_ExecuteActions(campaign, ufo, ufo->aircraftTarget);
else
ufo->aircraftTarget = nullptr;
return;
}
ufo->status = AIR_TRANSIT;
AIR_Foreach(phalanxAircraft) {
/* check that aircraft is flying */
if (AIR_IsAircraftOnGeoscape(phalanxAircraft)) {
/* get the distance from ufo to aircraft */
const float dist = GetDistanceOnGlobe(ufo->pos, phalanxAircraft->pos);
/* check out of reach */
if (dist > maxDetectionRange)
continue;
/* choose the nearest target */
if (dist < distance) {
distance = dist;
if (UFO_SendPursuingAircraft(ufo, phalanxAircraft) && UFO_IsUFOSeenOnGeoscape(ufo)) {
/* stop time and notify */
MSO_CheckAddNewMessage(NT_UFO_ATTACKING, _("Notice"), va(_("A UFO is flying toward %s"), phalanxAircraft->name));
/** @todo present a popup with possible orders like: return to base, attack the ufo, try to flee the rockets */
return;
}
}
}
}
/* if this ufo is a leader, it does not try to search another one */
if (ufo->leader)
return;
aircraft_t* otherUFO = nullptr;
const float polarCoordinatesOffset = 1.0f;
while ((otherUFO = UFO_GetNextOnGeoscape(otherUFO)) != nullptr) {
if (otherUFO == ufo)
continue;
if (otherUFO->leader) {
vec2_t dest;
AIR_GetDestinationWhilePursuing(ufo, otherUFO, dest);
dest[0] += polarCoordinatesOffset;
dest[1] += polarCoordinatesOffset;
GEO_CalcLine(ufo->pos, dest, &ufo->route);
ufo->time = 0;
ufo->point = 0;
break;
}
}
}
