/**
* @brief Actions to perform when destroying one hangar.
* @param[in] base Pointer to the base where hangar is destroyed.
* @param[in] capacity Type of hangar capacity: CAP_AIRCRAFT_SMALL or CAP_AIRCRAFT_BIG
* @note called when player destroy its building or hangar is destroyed during base attack.
* @note These actions will be performed after we actually remove the building.
* @pre we checked before calling this function that all parameters are valid.
* @pre building is not under construction.
* @sa B_BuildingDestroy_f
* @todo If player choose to destroy the building, a popup should ask him if he wants to sell aircraft in it.
*/
void CAP_RemoveAircraftExceedingCapacity (base_t* base, baseCapacities_t capacity)
{
linkedList_t *awayAircraft = nullptr;
int numAwayAircraft;
int randomNum;
/* destroy aircraft only if there's not enough hangar (hangar is already destroyed) */
if (CAP_GetFreeCapacity(base, capacity) >= 0)
return;
/* destroy one aircraft (must not be sold: may be destroyed by aliens) */
AIR_ForeachFromBase(aircraft, base) {
const int aircraftSize = aircraft->size;
switch (aircraftSize) {
case AIRCRAFT_SMALL:
if (capacity != CAP_AIRCRAFT_SMALL)
continue;
break;
case AIRCRAFT_LARGE:
if (capacity != CAP_AIRCRAFT_BIG)
continue;
break;
default:
cgi->Com_Error(ERR_DROP, "B_RemoveAircraftExceedingCapacity: Unknown type of aircraft '%i'", aircraftSize);
}
/* Only aircraft in hangar will be destroyed by hangar destruction */
if (!AIR_IsAircraftInBase(aircraft)) {
if (AIR_IsAircraftOnGeoscape(aircraft))
cgi->LIST_AddPointer(&awayAircraft, (void*)aircraft);
continue;
}
/* Remove aircraft and aircraft items, but do not fire employees */
AIR_DeleteAircraft(aircraft);
cgi->LIST_Delete(&awayAircraft);
return;
}
numAwayAircraft = cgi->LIST_Count(awayAircraft);
if (!numAwayAircraft)
return;
/* All aircraft are away from base, pick up one and change it's homebase */
randomNum = rand() % numAwayAircraft;
if (!CL_DisplayHomebasePopup((aircraft_t*)cgi->LIST_GetByIdx(awayAircraft, randomNum), false)) {
aircraft_t *aircraft = (aircraft_t*)cgi->LIST_GetByIdx(awayAircraft, randomNum);
/* No base can hold this aircraft */
UFO_NotifyPhalanxAircraftRemoved(aircraft);
if (!MapIsWater(GEO_GetColor(aircraft->pos, MAPTYPE_TERRAIN, nullptr)))
CP_SpawnRescueMission(aircraft, nullptr);
else {
/* Destroy the aircraft and everything onboard - the aircraft pointer
* is no longer valid after this point */
/* Pilot skills; really kill pilot in this case? */
AIR_DestroyAircraft(aircraft);
}
}
cgi->LIST_Delete(&awayAircraft);
}
/**
* @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 events for UFOs: Appears or disappears on radars
* @return qtrue if any new ufo was detected during this iteration, qfalse otherwise
*/
qboolean UFO_CampaignCheckEvents (void)
{
qboolean newDetection;
aircraft_t *ufo;
newDetection = qfalse;
/* For each ufo in geoscape */
ufo = NULL;
while ((ufo = UFO_GetNext(ufo)) != NULL) {
char detectedBy[MAX_VAR] = "";
float minDistance = -1;
/* detected tells us whether or not a UFO is detected NOW, whereas ufo->detected tells
* us whether or not the UFO was detected PREVIOUSLY. */
qboolean detected = qfalse;
base_t *base;
/* don't update UFO status id UFO is landed or crashed */
if (ufo->landed)
continue;
/* note: We can't exit these loops as soon as we found the UFO detected
* RADAR_CheckUFOSensored registers the UFO in every radars' detection list
* which detect it */
/* Check if UFO is detected by an aircraft */
AIR_Foreach(aircraft) {
if (!AIR_IsAircraftOnGeoscape(aircraft))
continue;
/* maybe the ufo is already detected, don't reset it */
if (RADAR_CheckUFOSensored(&aircraft->radar, aircraft->pos, ufo, detected | ufo->detected)) {
const int distance = GetDistanceOnGlobe(aircraft->pos, ufo->pos);
detected = qtrue;
if (minDistance < 0 || minDistance > distance) {
minDistance = distance;
Q_strncpyz(detectedBy, aircraft->name, sizeof(detectedBy));
}
}
}
/* Check if UFO is detected by a base */
base = NULL;
while ((base = B_GetNext(base)) != NULL) {
if (!B_GetBuildingStatus(base, B_POWER))
continue;
/* maybe the ufo is already detected, don't reset it */
if (RADAR_CheckUFOSensored(&base->radar, base->pos, ufo, detected | ufo->detected)) {
const int distance = GetDistanceOnGlobe(base->pos, ufo->pos);
detected = qtrue;
if (minDistance < 0 || minDistance > distance) {
minDistance = distance;
Q_strncpyz(detectedBy, base->name, sizeof(detectedBy));
}
}
}
/* Check if UFO is detected by a radartower */
INS_Foreach(installation) {
/* maybe the ufo is already detected, don't reset it */
if (RADAR_CheckUFOSensored(&installation->radar, installation->pos, ufo, detected | ufo->detected)) {
const int distance = GetDistanceOnGlobe(installation->pos, ufo->pos);
detected = qtrue;
if (minDistance < 0 || minDistance > distance) {
minDistance = distance;
Q_strncpyz(detectedBy, installation->name, sizeof(detectedBy));
}
}
}
/* Check if ufo appears or disappears on radar */
if (detected != ufo->detected) {
if (detected) {
/* if UFO is aiming a PHALANX aircraft, warn player */
if (ufo->aircraftTarget) {
/* stop time and notify */
MSO_CheckAddNewMessage(NT_UFO_ATTACKING, _("Notice"), va(_("A UFO is flying toward %s"), ufo->aircraftTarget->name), qfalse,
MSG_STANDARD, NULL);
/** @todo present a popup with possible orders like: return to base, attack the ufo, try to flee the rockets
* @sa UFO_SearchAircraftTarget */
} else {
MSO_CheckAddNewMessage(NT_UFO_SPOTTED, _("Notice"), va(_("Our radar detected a new UFO near %s"), detectedBy), qfalse,
MSG_UFOSPOTTED, NULL);
}
newDetection = qtrue;
UFO_DetectNewUFO(ufo);
} else if (!detected) {
MSO_CheckAddNewMessage(NT_UFO_SIGNAL_LOST, _("Notice"), _("Our radar has lost the tracking on a UFO"), qfalse, MSG_UFOLOST, NULL);
/* Make this UFO undetected */
ufo->detected = qfalse;
/* Notify that ufo disappeared */
AIR_AircraftsUFODisappear(ufo);
MAP_NotifyUFODisappear(ufo);
/* Deactivate Radar overlay */
RADAR_DeactivateRadarOverlay();
}
}
}
return newDetection;
}
/**
* @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;
}
}
}
