// ////////////////////////////////////////////////////////////////////////////
// receive droid information form other players.
BOOL recvDroidInfo(NETQUEUE queue)
{
NETbeginDecode(queue, GAME_DROIDINFO);
{
QueuedDroidInfo info;
memset(&info, 0x00, sizeof(info));
NETQueuedDroidInfo(&info);
STRUCTURE_STATS *psStats = NULL;
if (info.order == DORDER_BUILD || info.order == DORDER_LINEBUILD)
{
// Find structure target
for (unsigned typeIndex = 0; typeIndex < numStructureStats; typeIndex++)
{
if (asStructureStats[typeIndex].ref == info.structRef)
{
psStats = asStructureStats + typeIndex;
break;
}
}
}
if (info.subType)
{
syncDebug("Order=%s,%d(%d)", getDroidOrderName(info.order), info.destId, info.destType);
}
else
{
syncDebug("Order=%s,(%d,%d)", getDroidOrderName(info.order), info.x, info.y);
}
DROID_ORDER_DATA sOrder;
memset(&sOrder, 0x00, sizeof(sOrder));
sOrder.order = info.order;
sOrder.x = info.x;
sOrder.y = info.y;
sOrder.x2 = info.x2;
sOrder.y2 = info.y2;
sOrder.direction = info.direction;
sOrder.psObj = processDroidTarget(info.destType, info.destId);
sOrder.psStats = (BASE_STATS *)psStats;
uint32_t num = 0;
NETuint32_t(&num);
for (unsigned n = 0; n < num; ++n)
{
// Get the next droid ID which is being given this order.
uint32_t deltaDroidId = 0;
NETuint32_t(&deltaDroidId);
info.droidId += deltaDroidId;
DROID *psDroid = NULL;
if (!IdToDroid(info.droidId, ANYPLAYER, &psDroid))
{
debug(LOG_NEVER, "Packet from %d refers to non-existent droid %u, [%s : p%d]",
queue.index, info.droidId, isHumanPlayer(info.player) ? "Human" : "AI", info.player);
syncDebug("Droid %d missing", info.droidId);
continue; // Can't find the droid, so skip this droid.
}
CHECK_DROID(psDroid);
syncDebugDroid(psDroid, '<');
psDroid->waitingForOwnReceiveDroidInfoMessage = false;
/*
* If the current order not is a command order and we are not a
* commander yet are in the commander group remove us from it.
*/
if (hasCommander(psDroid))
{
grpLeave(psDroid->psGroup, psDroid);
}
if (sOrder.psObj != TargetMissing) // Only do order if the target didn't die.
{
orderDroidBase(psDroid, &sOrder);
}
syncDebugDroid(psDroid, '>');
CHECK_DROID(psDroid);
}
}
NETend();
return true;
}
/* Calculates attack priority for a certain target */
static SDWORD targetAttackWeight(BASE_OBJECT *psTarget, BASE_OBJECT *psAttacker, SDWORD weapon_slot)
{
SDWORD targetTypeBonus=0, damageRatio=0, attackWeight=0, noTarget=-1;
UDWORD weaponSlot;
DROID *targetDroid=NULL,*psAttackerDroid=NULL,*psGroupDroid,*psDroid;
STRUCTURE *targetStructure=NULL;
WEAPON_EFFECT weaponEffect;
WEAPON_STATS *attackerWeapon;
BOOL bEmpWeap=false,bCmdAttached=false,bTargetingCmd=false;
if (psTarget == NULL || psAttacker == NULL || aiObjectIsProbablyDoomed(psTarget))
{
return noTarget;
}
ASSERT(psTarget != psAttacker, "targetAttackWeight: Wanted to evaluate the worth of attacking ourselves...");
targetTypeBonus = 0; //Sensors/ecm droids, non-military structures get lower priority
/* Get attacker weapon effect */
if(psAttacker->type == OBJ_DROID)
{
psAttackerDroid = (DROID *)psAttacker;
attackerWeapon = (WEAPON_STATS *)(asWeaponStats + psAttackerDroid->asWeaps[weapon_slot].nStat);
//check if this droid is assigned to a commander
bCmdAttached = hasCommander(psAttackerDroid);
//find out if current target is targeting our commander
if(bCmdAttached)
{
if(psTarget->type == OBJ_DROID)
{
psDroid = (DROID *)psTarget;
//go through all enemy weapon slots
for(weaponSlot = 0; !bTargetingCmd &&
weaponSlot < ((DROID *)psTarget)->numWeaps; weaponSlot++)
{
//see if this weapon is targeting our commander
if (psDroid->psActionTarget[weaponSlot] == (BASE_OBJECT *)psAttackerDroid->psGroup->psCommander)
{
bTargetingCmd = true;
}
}
}
else
{
if(psTarget->type == OBJ_STRUCTURE)
{
//go through all enemy weapons
for(weaponSlot = 0; !bTargetingCmd && weaponSlot < ((STRUCTURE *)psTarget)->numWeaps; weaponSlot++)
{
if (((STRUCTURE *)psTarget)->psTarget[weaponSlot] ==
(BASE_OBJECT *)psAttackerDroid->psGroup->psCommander)
{
bTargetingCmd = true;
}
}
}
}
}
}
else if(psAttacker->type == OBJ_STRUCTURE)
{
attackerWeapon = ((WEAPON_STATS *)(asWeaponStats + ((STRUCTURE *)psAttacker)->asWeaps[weapon_slot].nStat));
}
else /* feature */
{
ASSERT(!"invalid attacker object type", "targetAttackWeight: Invalid attacker object type");
return noTarget;
}
//Get weapon effect
weaponEffect = attackerWeapon->weaponEffect;
//See if attacker is using an EMP weapon
bEmpWeap = (attackerWeapon->weaponSubClass == WSC_EMP);
/* Calculate attack weight */
if(psTarget->type == OBJ_DROID)
{
targetDroid = (DROID *)psTarget;
if (targetDroid->died)
{
debug(LOG_NEVER, "Target droid is dead, skipping invalid droid.\n");
return noTarget;
}
/* Calculate damage this target suffered */
if (targetDroid->originalBody == 0) // FIXME Somewhere we get 0HP droids from
{
damageRatio = 0;
debug(LOG_ERROR, "targetAttackWeight: 0HP droid detected!");
debug(LOG_ERROR, " Type: %i Name: \"%s\" Owner: %i \"%s\")",
targetDroid->droidType, targetDroid->aName, targetDroid->player, getPlayerName(targetDroid->player));
}
else
{
damageRatio = 1 - targetDroid->body / targetDroid->originalBody;
}
assert(targetDroid->originalBody != 0); // Assert later so we get the info from above
/* See if this type of a droid should be prioritized */
switch (targetDroid->droidType)
{
case DROID_SENSOR:
case DROID_ECM:
case DROID_PERSON:
case DROID_TRANSPORTER:
case DROID_DEFAULT:
case DROID_ANY:
break;
case DROID_CYBORG:
case DROID_WEAPON:
case DROID_CYBORG_SUPER:
targetTypeBonus = WEIGHT_WEAPON_DROIDS;
break;
case DROID_COMMAND:
targetTypeBonus = WEIGHT_COMMAND_DROIDS;
break;
case DROID_CONSTRUCT:
case DROID_REPAIR:
case DROID_CYBORG_CONSTRUCT:
case DROID_CYBORG_REPAIR:
targetTypeBonus = WEIGHT_SERVICE_DROIDS;
break;
}
/* Now calculate the overall weight */
attackWeight = asWeaponModifier[weaponEffect][(asPropulsionStats + targetDroid->asBits[COMP_PROPULSION].nStat)->propulsionType] // Our weapon's effect against target
+ WEIGHT_DIST_TILE_DROID * psAttacker->sensorRange/TILE_UNITS
- WEIGHT_DIST_TILE_DROID * map_coord(iHypot(psAttacker->pos.x - targetDroid->pos.x, psAttacker->pos.y - targetDroid->pos.y)) // farer droids are less attractive
+ WEIGHT_HEALTH_DROID * damageRatio // we prefer damaged droids
+ targetTypeBonus; // some droid types have higher priority
/* If attacking with EMP try to avoid targets that were already "EMPed" */
if(bEmpWeap &&
(targetDroid->lastHitWeapon == WSC_EMP) &&
((gameTime - targetDroid->timeLastHit) < EMP_DISABLE_TIME)) //target still disabled
{
attackWeight /= EMP_DISABLED_PENALTY_F;
}
}
else if(psTarget->type == OBJ_STRUCTURE)
{
targetStructure = (STRUCTURE *)psTarget;
/* Calculate damage this target suffered */
damageRatio = 1 - targetStructure->body / structureBody(targetStructure);
/* See if this type of a structure should be prioritized */
switch(targetStructure->pStructureType->type)
{
case REF_DEFENSE:
targetTypeBonus = WEIGHT_WEAPON_STRUCT;
break;
case REF_RESOURCE_EXTRACTOR:
targetTypeBonus = WEIGHT_DERRICK_STRUCT;
break;
case REF_FACTORY:
case REF_CYBORG_FACTORY:
case REF_REPAIR_FACILITY:
targetTypeBonus = WEIGHT_MILITARY_STRUCT;
break;
default:
break;
}
/* Now calculate the overall weight */
attackWeight = asStructStrengthModifier[weaponEffect][targetStructure->pStructureType->strength] // Our weapon's effect against target
+ WEIGHT_DIST_TILE_STRUCT * psAttacker->sensorRange/TILE_UNITS
- WEIGHT_DIST_TILE_STRUCT * map_coord(iHypot(psAttacker->pos.x - targetStructure->pos.x, psAttacker->pos.y - targetStructure->pos.y)) // farer structs are less attractive
+ WEIGHT_HEALTH_STRUCT * damageRatio // we prefer damaged structures
+ targetTypeBonus; // some structure types have higher priority
/* Go for unfinished structures only if nothing else found (same for non-visible structures) */
if(targetStructure->status != SS_BUILT) //a decoy?
{
attackWeight /= WEIGHT_STRUCT_NOTBUILT_F;
}
/* EMP should only attack structures if no enemy droids are around */
if(bEmpWeap)
{
attackWeight /= EMP_STRUCT_PENALTY_F;
}
}
else //a feature
{
return 1;
}
/* We prefer objects we can see and can attack immediately */
if(!visibleObject((BASE_OBJECT *)psAttacker, psTarget, true))
{
attackWeight /= WEIGHT_NOT_VISIBLE_F;
}
/* Commander-related criterias */
if(bCmdAttached) //attached to a commander and don't have a target assigned by some order
{
ASSERT(psAttackerDroid->psGroup->psCommander != NULL, "Commander is NULL");
//if commander is being targeted by our target, try to defend the commander
if(bTargetingCmd)
{
attackWeight += WEIGHT_CMD_RANK * ( 1 + getDroidLevel(psAttackerDroid->psGroup->psCommander));
}
//fire support - go through all droids assigned to the commander
for (psGroupDroid = psAttackerDroid->psGroup->psList; psGroupDroid; psGroupDroid = psGroupDroid->psGrpNext)
{
for(weaponSlot = 0; weaponSlot < psGroupDroid->numWeaps; weaponSlot++)
{
//see if this droid is currently targeting current target
if(psGroupDroid->psTarget == psTarget ||
psGroupDroid->psActionTarget[weaponSlot] == psTarget)
{
//we prefer targets that are already targeted and hence will be destroyed faster
attackWeight += WEIGHT_CMD_SAME_TARGET;
}
}
}
}
return attackWeight;
}
/* Do the AI for a droid */
void aiUpdateDroid(DROID *psDroid)
{
BASE_OBJECT *psTarget;
bool lookForTarget, updateTarget;
ASSERT(psDroid != NULL, "Invalid droid pointer");
if (!psDroid || isDead((BASE_OBJECT *)psDroid))
{
return;
}
lookForTarget = false;
updateTarget = false;
// look for a target if doing nothing
if (orderState(psDroid, DORDER_NONE) ||
orderState(psDroid, DORDER_GUARD) ||
orderState(psDroid, DORDER_HOLD))
{
lookForTarget = true;
}
// but do not choose another target if doing anything while guarding
// exception for sensors, to allow re-targetting when target is doomed
if (orderState(psDroid, DORDER_GUARD) && psDroid->action != DACTION_NONE && psDroid->droidType != DROID_SENSOR)
{
lookForTarget = false;
}
// don't look for a target if sulking
if (psDroid->action == DACTION_SULK)
{
lookForTarget = false;
}
/* Only try to update target if already have some target */
if (psDroid->action == DACTION_ATTACK ||
psDroid->action == DACTION_MOVEFIRE ||
psDroid->action == DACTION_MOVETOATTACK ||
psDroid->action == DACTION_ROTATETOATTACK)
{
updateTarget = true;
}
if ((orderState(psDroid, DORDER_OBSERVE) || orderState(psDroid, DORDER_ATTACKTARGET)) &&
psDroid->order.psObj && psDroid->order.psObj->died)
{
lookForTarget = true;
updateTarget = false;
}
/* Don't update target if we are sent to attack and reached attack destination (attacking our target) */
if (orderState(psDroid, DORDER_ATTACK) && psDroid->psActionTarget[0] == psDroid->order.psObj)
{
updateTarget = false;
}
// don't look for a target if there are any queued orders
if (psDroid->listSize > 0)
{
lookForTarget = false;
updateTarget = false;
}
// don't allow units to start attacking if they will switch to guarding the commander
if (hasCommander(psDroid))
{
lookForTarget = false;
updateTarget = false;
}
if (bMultiPlayer && isVtolDroid(psDroid) && isHumanPlayer(psDroid->player))
{
lookForTarget = false;
updateTarget = false;
}
// do not look for a target if droid is currently under direct control.
if (driveModeActive() && (psDroid == driveGetDriven()))
{
lookForTarget = false;
updateTarget = false;
}
// CB and VTOL CB droids can't autotarget.
if (psDroid->droidType == DROID_SENSOR && !standardSensorDroid(psDroid))
{
lookForTarget = false;
updateTarget = false;
}
// do not attack if the attack level is wrong
if (secondaryGetState(psDroid, DSO_ATTACK_LEVEL) != DSS_ALEV_ALWAYS)
{
lookForTarget = false;
}
/* For commanders and non-assigned non-commanders: look for a better target once in a while */
if (!lookForTarget && updateTarget && psDroid->numWeaps > 0 && !hasCommander(psDroid)
&& (psDroid->id + gameTime) / TARGET_UPD_SKIP_FRAMES != (psDroid->id + gameTime - deltaGameTime) / TARGET_UPD_SKIP_FRAMES)
{
for (int i = 0; i < psDroid->numWeaps; ++i)
{
updateAttackTarget((BASE_OBJECT *)psDroid, i);
}
}
/* Null target - see if there is an enemy to attack */
if (lookForTarget && !updateTarget)
{
if (psDroid->droidType == DROID_SENSOR)
{
if (aiChooseSensorTarget((BASE_OBJECT *)psDroid, &psTarget))
{
actionDroid(psDroid, DACTION_OBSERVE, psTarget);
}
}
else
{
if (aiChooseTarget((BASE_OBJECT *)psDroid, &psTarget, 0, true, NULL))
{
actionDroid(psDroid, DACTION_ATTACK, psTarget);
}
}
}
}
/* Do the AI for a droid */
void aiUpdateDroid(DROID *psDroid)
{
BASE_OBJECT *psTarget;
BOOL lookForTarget,updateTarget;
ASSERT(psDroid != NULL, "Invalid droid pointer");
if (!psDroid || isDead((BASE_OBJECT *)psDroid))
{
return;
}
// HACK: we always want to update orders when NOT running a MP game,
// and we don't want to update when the droid belongs to another human player
if (!myResponsibility(psDroid->player) && bMultiPlayer
&& isHumanPlayer(psDroid->player))
{
return; // we should not order this droid around
}
lookForTarget = false;
updateTarget = false;
// look for a target if doing nothing
if (orderState(psDroid, DORDER_NONE) ||
orderState(psDroid, DORDER_GUARD) ||
orderState(psDroid, DORDER_TEMP_HOLD))
{
lookForTarget = true;
}
// but do not choose another target if doing anything while guarding
if (orderState(psDroid, DORDER_GUARD) &&
(psDroid->action != DACTION_NONE))
{
lookForTarget = false;
}
// except when self-repairing
if (psDroid->action == DACTION_DROIDREPAIR &&
psDroid->psActionTarget[0] == (BASE_OBJECT *)psDroid)
{
lookForTarget = true;
}
// don't look for a target if sulking
if (psDroid->action == DACTION_SULK)
{
lookForTarget = false;
}
/* Only try to update target if already have some target */
if (psDroid->action == DACTION_ATTACK ||
psDroid->action == DACTION_MOVEFIRE ||
psDroid->action == DACTION_MOVETOATTACK ||
psDroid->action == DACTION_ROTATETOATTACK)
{
updateTarget = true;
}
if ((orderState(psDroid, DORDER_OBSERVE) || orderState(psDroid, DORDER_ATTACKTARGET)) &&
psDroid->psTarget && aiObjectIsProbablyDoomed(psDroid->psTarget))
{
lookForTarget = true;
updateTarget = false;
}
/* Don't update target if we are sent to attack and reached
attack destination (attacking our target) */
if (orderState(psDroid, DORDER_ATTACK) && psDroid->psActionTarget[0] == psDroid->psTarget)
{
updateTarget = false;
}
// don't look for a target if there are any queued orders
if (psDroid->listSize > 0)
{
lookForTarget = false;
updateTarget = false;
}
// horrible check to stop droids looking for a target if
// they would switch to the guard order in the order update loop
if ((psDroid->order == DORDER_NONE) &&
(psDroid->player == selectedPlayer) &&
!isVtolDroid(psDroid) &&
secondaryGetState(psDroid, DSO_HALTTYPE) == DSS_HALT_GUARD)
{
lookForTarget = false;
updateTarget = false;
}
// don't allow units to start attacking if they will switch to guarding the commander
if(hasCommander(psDroid))
{
lookForTarget = false;
updateTarget = false;
}
if(bMultiPlayer && isVtolDroid(psDroid) && isHumanPlayer(psDroid->player))
{
lookForTarget = false;
updateTarget = false;
}
// do not look for a target if droid is currently under direct control.
if(driveModeActive() && (psDroid == driveGetDriven())) {
lookForTarget = false;
updateTarget = false;
}
// CB and VTOL CB droids can't autotarget.
if (psDroid->droidType == DROID_SENSOR && !standardSensorDroid(psDroid))
{
lookForTarget = false;
updateTarget = false;
}
// do not attack if the attack level is wrong
if (secondaryGetState(psDroid, DSO_ATTACK_LEVEL) != DSS_ALEV_ALWAYS)
{
lookForTarget = false;
}
/* For commanders and non-assigned non-commanders:
look for a better target once in a while */
if(!lookForTarget && updateTarget)
{
if((psDroid->numWeaps > 0) && !hasCommander(psDroid)) //not assigned to commander
{
if((psDroid->id + gameTime)/TARGET_UPD_SKIP_FRAMES != (psDroid->id + gameTime - deltaGameTime)/TARGET_UPD_SKIP_FRAMES)
{
unsigned int i;
(void)updateAttackTarget((BASE_OBJECT*)psDroid, 0); // this function always has to be called on weapon-slot 0 (even if ->numWeaps == 0)
//updates all targets
for (i = 1; i < psDroid->numWeaps; ++i)
{
(void)updateAttackTarget((BASE_OBJECT*)psDroid, i);
}
}
}
}
/* Null target - see if there is an enemy to attack */
if (lookForTarget && !updateTarget)
{
if (psDroid->droidType == DROID_SENSOR)
{
if (aiChooseSensorTarget((BASE_OBJECT *)psDroid, &psTarget))
{
orderDroidObj(psDroid, DORDER_OBSERVE, psTarget);
}
}
else
{
if (aiChooseTarget((BASE_OBJECT *)psDroid, &psTarget, 0, true, NULL))
{
orderDroidObj(psDroid, DORDER_ATTACKTARGET, psTarget);
}
}
}
}
// ////////////////////////////////////////////////////////////////////////////
// receive droid information form other players.
bool recvDroidInfo(NETQUEUE queue)
{
NETbeginDecode(queue, GAME_DROIDINFO);
{
QueuedDroidInfo info;
memset(&info, 0x00, sizeof(info));
NETQueuedDroidInfo(&info);
STRUCTURE_STATS *psStats = NULL;
if (info.subType == LocOrder && (info.order == DORDER_BUILD || info.order == DORDER_LINEBUILD))
{
// Find structure target
for (unsigned typeIndex = 0; typeIndex < numStructureStats; typeIndex++)
{
if (asStructureStats[typeIndex].ref == info.structRef)
{
psStats = asStructureStats + typeIndex;
break;
}
}
}
switch (info.subType)
{
case ObjOrder: syncDebug("Order=%s,%d(%d)", getDroidOrderName(info.order), info.destId, info.destType); break;
case LocOrder: syncDebug("Order=%s,(%d,%d)", getDroidOrderName(info.order), info.pos.x, info.pos.y); break;
case SecondaryOrder: syncDebug("SecondaryOrder=%d,%08X", (int)info.secOrder, (int)info.secState); break;
}
DROID_ORDER_DATA sOrder = infoToOrderData(info, psStats);
uint32_t num = 0;
NETuint32_t(&num);
for (unsigned n = 0; n < num; ++n)
{
// Get the next droid ID which is being given this order.
uint32_t deltaDroidId = 0;
NETuint32_t(&deltaDroidId);
info.droidId += deltaDroidId;
DROID *psDroid = IdToDroid(info.droidId, info.player);
if (!psDroid)
{
debug(LOG_NEVER, "Packet from %d refers to non-existent droid %u, [%s : p%d]",
queue.index, info.droidId, isHumanPlayer(info.player) ? "Human" : "AI", info.player);
syncDebug("Droid %d missing", info.droidId);
continue; // Can't find the droid, so skip this droid.
}
CHECK_DROID(psDroid);
syncDebugDroid(psDroid, '<');
switch (info.subType)
{
case ObjOrder:
case LocOrder:
/*
* If the current order not is a command order and we are not a
* commander yet are in the commander group remove us from it.
*/
if (hasCommander(psDroid))
{
psDroid->psGroup->remove(psDroid);
}
if (sOrder.psObj != TargetMissing) // Only do order if the target didn't die.
{
if (!info.add)
{
orderDroidListEraseRange(psDroid, 0, psDroid->listSize + 1); // Clear all non-pending orders, plus the first pending order (which is probably the order we just received).
orderDroidBase(psDroid, &sOrder); // Execute the order immediately (even if in the middle of another order.
}
else
{
orderDroidAdd(psDroid, &sOrder); // Add the order to the (non-pending) list. Will probably overwrite the corresponding pending order, assuming all pending orders were written to the list.
}
}
break;
case SecondaryOrder:
// Set the droids secondary order
turnOffMultiMsg(true);
secondarySetState(psDroid, info.secOrder, info.secState);
turnOffMultiMsg(false);
break;
}
syncDebugDroid(psDroid, '>');
CHECK_DROID(psDroid);
}
}
NETend();
return true;
}
