// called from CAttackHandler::Update()
void CAttackGroup::Update(int frameNr) {
int frameSpread = 30;
unsigned int numUnits = units.size();
if (!numUnits) {
// empty attack group, nothing to update
return;
}
float3 groupPosition = GetGroupPos();
if (groupPosition == ERRORVECTOR)
return;
// this part of the code checks for nearby enemies and does focus fire/maneuvering
if ((frameNr % frameSpread) == ((groupID * 4) % frameSpread)) {
isShooting = false;
// get all enemies within attack range
float range = highestAttackRange + 100.0f;
int numEnemies = ai->cheat->GetEnemyUnits(&ai->unitIDs[0], groupPosition, range);
if (numEnemies > 0) {
// select one of the enemies
int enemySelected = SelectEnemy(numEnemies, groupPosition);
// for every unit, pathfind to enemy perifery (with personal range - 10) then
// if distance to that last point in the path is < 10 or cost is 0, attack
if (enemySelected != -1) {
AttackEnemy(enemySelected, numUnits, range, frameSpread);
}
}
}
if (pathToTarget.size() >= 2) {
// AssignToTarget() was called for this group so
// we have an attack position and path, just move
// (movement may be slow due to spreading of orders)
if (!isShooting && isMoving && (frameNr % 60 == (groupID * 5) % frameSpread)) {
MoveAlongPath(groupPosition, numUnits);
}
} else {
// find something to attack within visual and radar LOS if AssignToTarget() wasn't called
if ((defending && !isShooting && !isMoving) && (frameNr % 60 == groupID % 60)) {
FindDefenseTarget(groupPosition, frameNr);
}
}
}
void AAIGroup::AttackSector(AAISector *dest, float importance)
{
float3 pos;
Command c;
c.id = CMD_FIGHT;
c.params.resize(3);
// get position of the group
pos = GetGroupPos();
int group_x = pos.x/ai->Getmap()->xSectorSize;
int group_y = pos.z/ai->Getmap()->ySectorSize;
c.params[0] = (dest->left + dest->right)/2;
c.params[2] = (dest->bottom + dest->top)/2;
// choose location that way that attacking units must cross the entire sector
if(dest->x > group_x)
c.params[0] = (dest->left + 7 * dest->right)/8;
else if(dest->x < group_x)
c.params[0] = (7 * dest->left + dest->right)/8;
else
c.params[0] = (dest->left + dest->right)/2;
if(dest->y > group_y)
c.params[2] = (7 * dest->bottom + dest->top)/8;
else if(dest->y < group_y)
c.params[2] = (dest->bottom + 7 * dest->top)/8;
else
c.params[2] = (dest->bottom + dest->top)/2;
c.params[1] = ai->Getcb()->GetElevation(c.params[0], c.params[2]);
// move group to that sector
GiveOrder(&c, importance + 8, UNIT_ATTACKING, "Group::AttackSector");
target_sector = dest;
task = GROUP_ATTACKING;
}
