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Improve "Whomever is attacking me" targeting 

Fixes #197
This commit is contained in:
Alexander Batalov 2022-12-29 09:37:51 +03:00
parent 11217974c6
commit 34259269a4
1 changed files with 85 additions and 27 deletions
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102
src/combat_ai.cc
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@ -1508,7 +1508,7 @@ static Object* _ai_danger_source(Object* a1)
return NULL;
}
bool v2 = false;
bool ignoreFleeingCritters = false;
int attackWho;
Object* targets[4];
@ -1518,42 +1518,100 @@ static Object* _ai_danger_source(Object* a1)
int disposition = aiGetDisposition(a1);
switch (disposition + 1) {
case 1:
case 2:
case 3:
case 4:
v2 = true;
case DISPOSITION_CUSTOM:
case DISPOSITION_COWARD:
case DISPOSITION_DEFENSIVE:
case DISPOSITION_AGGRESSIVE:
ignoreFleeingCritters = true;
break;
case 0:
case 5:
v2 = false;
case DISPOSITION_NONE:
case DISPOSITION_BERKSERK:
ignoreFleeingCritters = false;
break;
}
if (v2 && aiGetDistance(a1) == DISTANCE_CHARGE) {
v2 = false;
if (ignoreFleeingCritters && aiGetDistance(a1) == DISTANCE_CHARGE) {
ignoreFleeingCritters = false;
}
attackWho = aiGetAttackWho(a1);
switch (attackWho) {
case ATTACK_WHO_WHOMEVER_ATTACKING_ME: {
Object* candidate = aiInfoGetLastTarget(gDude);
if (candidate == NULL || a1->data.critter.combat.team == candidate->data.critter.combat.team) {
break;
case ATTACK_WHO_WHOMEVER_ATTACKING_ME:
if (1) {
// CE: Slightly improve "Whomever is attacking me" targeting.
//
// First attempt to continue attack our previous target. This
// prevents jumping from target to target thus spending precious
// action points on meaningless movements.
Object* candidate = aiInfoGetLastTarget(a1);
if (candidate != NULL) {
// Check if candidate is still a valid target:
// - not dead and not knocked out
// - not on the same team
// - still attacking dude
Object* critter = candidate;
if ((critter->data.critter.combat.results & (DAM_DEAD | DAM_KNOCKED_OUT)) != 0
|| a1->data.critter.combat.team == critter->data.critter.combat.team
|| aiInfoGetLastTarget(critter) != gDude) {
candidate = NULL;
}
if (pathfinderFindPath(a1, a1->tile, gDude->data.critter.combat.whoHitMe->tile, NULL, 0, _obj_blocking_at) == 0
&& _combat_check_bad_shot(a1, candidate, HIT_MODE_RIGHT_WEAPON_PRIMARY, false) != COMBAT_BAD_SHOT_OK) {
debugPrint("\nai_danger_source: %s couldn't attack at target! Picking alternate!", critterGetName(a1));
break;
// NOTE: I'm not sure if we need to revalidate candidate's
// reachability and shot conditions.
// Do not chase fleeing critter.
if (ignoreFleeingCritters && critterIsFleeing(critter)) {
candidate = NULL;
}
}
if (v2 && critterIsFleeing(a1)) {
break;
if (candidate == NULL) {
// Previous target is invalid. Pick nearest candidate who's
// attacking dude.
_ai_sort_list_distance(_curr_crit_list, _curr_crit_num, a1);
for (int index = 0; index < _curr_crit_num; index++) {
Object* critter = _curr_crit_list[index];
if (critter != a1) {
// Check if it's valid target (same conditions as
// above).
if ((critter->data.critter.combat.results & (DAM_DEAD | DAM_KNOCKED_OUT)) != 0
|| a1->data.critter.combat.team == critter->data.critter.combat.team
|| aiInfoGetLastTarget(critter) != gDude) {
continue;
}
// Make sure critter is reachable.
if (pathfinderFindPath(a1, a1->tile, critter->tile, NULL, 0, _obj_blocking_at) == 0) {
continue;
}
// Check if we can attack it. No ammo and out of
// range are ok results, since we can reload weapon
// move closer if necessary.
int badShot = _combat_check_bad_shot(a1, critter, HIT_MODE_RIGHT_WEAPON_PRIMARY, false);
if (badShot != COMBAT_BAD_SHOT_OK
&& badShot != COMBAT_BAD_SHOT_NO_AMMO
&& badShot != COMBAT_BAD_SHOT_OUT_OF_RANGE) {
continue;
}
// Do not chase fleeing critter.
if (ignoreFleeingCritters && critterIsFleeing(critter)) {
continue;
}
candidate = critter;
break;
}
}
}
if (candidate != NULL) {
return candidate;
}
}
break;
case ATTACK_WHO_STRONGEST:
case ATTACK_WHO_WEAKEST:
case ATTACK_WHO_CLOSEST:
@ -1585,7 +1643,7 @@ static Object* _ai_danger_source(Object* a1)
aiFindAttackers(a1, &(targets[1]), &(targets[2]), &(targets[3]));
if (v2) {
if (ignoreFleeingCritters) {
for (int index = 0; index < 4; index++) {
if (targets[index] != NULL && critterIsFleeing(targets[index])) {
targets[index] = NULL;