diff --git a/src/battle/ai.c b/src/battle/ai.c index 8e619e4..e60ff0a 100644 --- a/src/battle/ai.c +++ b/src/battle/ai.c @@ -55,7 +55,8 @@ static int selectWeaponForTarget(Entity *e); static void deployMine(void); static int isSurrendering(void); static void doSurrender(void); -static void fleeWithinBattleArea(void); +static void fleeWithinBattleArea(int x, int y, int numEnemies); +static int evadeNonKillTargets(void); void doAI(void) { @@ -162,32 +163,35 @@ static void doFighterAI(void) if (!self->target) { - /* move to leader and wander take priority over move to player */ - if (self->aiFlags & AIF_MOVES_TO_LEADER) + if (!evadeNonKillTargets()) { - if (!lookForLeader()) + /* move to leader and wander take priority over move to player */ + if (self->aiFlags & AIF_MOVES_TO_LEADER) { - if (self->aiFlags & AIF_MOVES_TO_PLAYER && player->alive == ALIVE_ALIVE) + if (!lookForLeader()) { - moveToPlayer(); - } - else - { - applyFighterBrakes(); + if (self->aiFlags & AIF_MOVES_TO_PLAYER && player->alive == ALIVE_ALIVE) + { + moveToPlayer(); + } + else + { + applyFighterBrakes(); + } } } - } - else if (self->aiFlags & AIF_WANDERS) - { - doWander(); - } - else if (self->aiFlags & AIF_MOVES_TO_PLAYER && player->alive == ALIVE_ALIVE) - { - moveToPlayer(); - } - else - { - applyFighterBrakes(); + else if (self->aiFlags & AIF_WANDERS) + { + doWander(); + } + else if (self->aiFlags & AIF_MOVES_TO_PLAYER && player->alive == ALIVE_ALIVE) + { + moveToPlayer(); + } + else + { + applyFighterBrakes(); + } } return; @@ -673,21 +677,7 @@ static int nearEnemies(void) if (numEnemies) { - self->targetLocation.x = x; - self->targetLocation.y = y; - - self->targetLocation.x /= numEnemies; - self->targetLocation.y /= numEnemies; - - /* dodge slightly */ - self->targetLocation.x += (rand() % 100 - rand() % 100); - self->targetLocation.y += (rand() % 100 - rand() % 100); - - self->aiActionTime = FPS * 2; - - fleeWithinBattleArea(); - - self->action = fleeEnemies; + fleeWithinBattleArea(x, y, numEnemies); return 1; } @@ -695,8 +685,55 @@ static int nearEnemies(void) return 0; } -static void fleeWithinBattleArea(void) +static int evadeNonKillTargets(void) { + int i, numEnemies, x, y; + Entity *e, **candidates; + + candidates = getAllEntsInRadius(self->x, self->y, SCREEN_WIDTH, self); + + self->target = NULL; + x = y = 0; + + numEnemies = 0; + + for (i = 0, e = candidates[i] ; e != NULL ; e = candidates[++i]) + { + if ((e->flags & EF_TAKES_DAMAGE) && e->side != SIDE_NONE && e->side != self->side && (!(e->flags & EF_DISABLED))) + { + if (getDistance(e->x, e->y, self->x, self->y) <= SCREEN_WIDTH) + { + x += e->x; + y += e->y; + numEnemies++; + } + } + } + + if (numEnemies) + { + fleeWithinBattleArea(x, y, numEnemies); + + return 1; + } + + return 0; +} + +static void fleeWithinBattleArea(int x, int y, int numEnemies) +{ + self->targetLocation.x = x; + self->targetLocation.y = y; + + self->targetLocation.x /= numEnemies; + self->targetLocation.y /= numEnemies; + + /* dodge slightly */ + self->targetLocation.x += (rand() % 100 - rand() % 100); + self->targetLocation.y += (rand() % 100 - rand() % 100); + + self->aiActionTime = FPS * 2; + /* at the limit of the battle area, try somewhere else */ if (self->targetLocation.x < SCREEN_WIDTH || self->targetLocation.x >= BATTLE_AREA_WIDTH - SCREEN_WIDTH) { @@ -710,6 +747,8 @@ static void fleeWithinBattleArea(void) self->targetLocation.y = -self->targetLocation.y; self->aiActionTime = FPS * 5; } + + self->action = fleeEnemies; } static void deployMine(void) @@ -733,12 +772,12 @@ static void deployMine(void) static int nearMines(void) { - int i, numMines; + int i, numMines, x, y; Entity *e, **candidates; candidates = getAllEntsInRadius(self->x, self->y, SCREEN_HEIGHT, self); - self->targetLocation.x = self->targetLocation.y = 0; + x = y = 0; numMines = 0; @@ -746,26 +785,15 @@ static int nearMines(void) { if (e->side != self->side && e->type == ET_MINE && getDistance(e->x, e->y, self->x, self->y) <= SCREEN_HEIGHT) { - self->targetLocation.x += e->x; - self->targetLocation.y += e->y; + x += e->x; + y += e->y; numMines++; } } if (numMines) { - self->targetLocation.x /= numMines; - self->targetLocation.y /= numMines; - - /* dodge slightly */ - self->targetLocation.x += (rand() % 100 - rand() % 100); - self->targetLocation.y += (rand() % 100 - rand() % 100); - - self->action = fleeEnemies; - - self->aiActionTime = FPS * 2; - - fleeWithinBattleArea(); + fleeWithinBattleArea(x, y, numMines); return 1; }