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Allow enemies to flee.

This commit is contained in:
Steve 2015-10-29 16:18:41 +00:00
parent 6409e4ec11
commit a87395cc23
9 changed files with 109 additions and 47 deletions
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36
data/missions/test/test.json
View File

@ -5,12 +5,6 @@
"planet" : "gfx/planets/spirit.png",
"music" : "",
"objectives" : [
{
"description" : "Reach Waypoints",
"targetName" : "Waypoint",
"targetValue" : 1,
"targetType" : "TT_WAYPOINT"
},
{
"description" : "Destroy Fighters",
"targetName" : "Dart",
@ -19,22 +13,6 @@
"active" : 0
}
],
"triggers" : [
{
"type" : "TRIGGER_WAYPOINT",
"targetName" : "Waypoint #1",
"targetValue" : "1",
"action" : "TA_ACTIVE_ENTITY",
"actionValue" : "Dart"
},
{
"type" : "TRIGGER_WAYPOINT",
"targetName" : "Waypoint #1",
"targetValue" : "1",
"action" : "TA_ACTIVE_OBJECTIVE",
"actionValue" : "1"
}
],
"player" : {
"type" : "ATAF",
"side" : "SIDE_CSN"
@ -46,15 +24,17 @@
"side" : "SIDE_PIRATE",
"x" : 640,
"y" : 0,
"active" : 0
"flags" : "EF_FLEES+EF_MISSION_TARGET"
}
],
"entityGroups" : [
"fighterGroups" : [
{
"type" : "ET_WAYPOINT",
"number" : 1,
"x" : 0,
"y" : 1000
"name" : "Dart",
"types" : "UnarmedDart",
"side" : "SIDE_PIRATE",
"x" : 640,
"y" : 0,
"number" : 5
}
]
}

38
src/battle/ai.c
View File

@ -45,11 +45,12 @@ static int targetOutOfRange(void);
static void moveToPlayer(void);
static int canAttack(Entity *f);
static int selectWeapon(int type);
static void flee(void);
void doAI(void)
{
int r;
if (!self->target || targetOutOfRange() || self->target->systemPower <= 0)
{
findTarget();
@ -60,10 +61,11 @@ void doAI(void)
{
moveToPlayer();
}
else
else if (!(self->flags & EF_FLEEING))
{
applyFighterBrakes();
}
return;
}
}
@ -100,6 +102,17 @@ void doAI(void)
self->action = huntAndAttackTarget;
self->aiActionTime = FPS * 1;
}
if (player != NULL && battle.numEnemies <= 2 && self->flags & EF_FLEES)
{
self->action = flee;
self->aiActionTime = FPS * 3;
if (!(self->flags & EF_FLEEING) && (self->flags & EF_MISSION_TARGET) && self->side != player->side)
{
addHudMessage(colors.cyan, "Mission target is escaping!");
self->flags |= EF_FLEEING;
}
}
}
static int targetOutOfRange(void)
@ -308,6 +321,27 @@ static void dodge(void)
nextAction();
}
static void flee(void)
{
int dir;
int wantedAngle = 180 + getAngle(self->x, self->y, player->x, player->y);
wantedAngle %= 360;
if (fabs(wantedAngle - self->angle) > TURN_THRESHOLD)
{
dir = ((int)(wantedAngle - self->angle + 360)) % 360 > 180 ? -1 : 1;
self->angle += dir * TURN_SPEED;
self->angle = mod(self->angle, 360);
}
applyFighterThrust();
nextAction();
}
static void nextAction(void)
{
if (--self->aiActionTime <= 0)

2
src/battle/ai.h
View File

@ -32,7 +32,9 @@ extern void fireGuns(Entity *owner);
extern float getAngle(int x1, int y1, int x2, int y2);
extern void applyFighterThrust(void);
extern void applyFighterBrakes(void);
extern void addHudMessage(SDL_Color c, char *format, ...);
extern Battle battle;
extern Colors colors;
extern Entity *self;
extern Entity *player;

25
src/battle/entities.c
View File

@ -38,11 +38,12 @@ Entity *spawnEntity(void)
void doEntities(void)
{
int numAllies, numEnemies;
Entity *e, *prev;
prev = &battle.entityHead;
battle.numAllies = battle.numEnemies = 0;
numAllies = numEnemies = 0;
for (e = battle.entityHead.next ; e != NULL ; e = e->next)
{
@ -56,6 +57,9 @@ void doEntities(void)
if (e->active)
{
self = e;
e->x += e->dx;
e->y += e->dy;
if (e->target != NULL && e->target->health <= 0)
{
@ -63,9 +67,6 @@ void doEntities(void)
e->target = NULL;
}
e->x += e->dx;
e->y += e->dy;
if (e->action != NULL)
{
if (--e->thinkTime <= 0)
@ -79,6 +80,19 @@ void doEntities(void)
{
case ET_FIGHTER:
doFighter();
if (player != NULL)
{
if (self->side == player->side)
{
numAllies++;
}
else
{
numEnemies++;
}
}
break;
default:
@ -111,6 +125,9 @@ void doEntities(void)
prev = e;
}
battle.numAllies = numAllies;
battle.numEnemies = numEnemies;
}
static void doEntity(void)

42
src/battle/fighters.c
View File

@ -27,6 +27,7 @@ static void spinDie(void);
static void straightDie(void);
static void randomizeDart(Entity *dart);
static void randomizeDartGuns(Entity *dart);
static void checkHasFled(void);
Entity *spawnFighter(char *name, int x, int y, int side)
{
@ -152,18 +153,6 @@ static void randomizeDartGuns(Entity *dart)
void doFighter(void)
{
if (player != NULL)
{
if (self->side == player->side)
{
battle.numAllies++;
}
else
{
battle.numEnemies++;
}
}
if (self != player && self->health > 0)
{
separate();
@ -221,6 +210,13 @@ void doFighter(void)
battle.stats[STAT_DISABLED]++;
}
}
else
{
if (player != NULL && self->flags & EF_FLEEING && battle.stats[STAT_TIME] % FPS == 0)
{
checkHasFled();
}
}
}
if (self->alive == ALIVE_DEAD)
@ -481,3 +477,25 @@ static void straightDie(void)
playBattleSound(SND_EXPLOSION_1 + rand() % 4, self->x, self->y);
}
}
static void checkHasFled(void)
{
long distance = getDistance(self->x, self->y, player->x, player->y);
if (distance > 5000)
{
if (self->side != player->side)
{
addHudMessage(colors.red, "Mission target has escaped.");
battle.stats[STAT_ENEMIES_ESCAPED]++;
}
else
{
battle.stats[STAT_ALLIES_ESCAPED]++;
}
checkTrigger("ESCAPE", TRIGGER_ESCAPES);
self->alive = ALIVE_DEAD;
}
}

3
src/battle/triggers.c
View File

@ -48,6 +48,9 @@ static int conditionMet(Trigger *trigger)
case TRIGGER_WAYPOINT:
return 1;
case TRIGGER_ESCAPES:
return trigger->targetValue == battle.stats[STAT_ENEMIES_ESCAPED];
}
return 0;

7
src/defs.h
View File

@ -56,6 +56,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#define EF_DISABLE (2 << 1)
#define EF_IMMORTAL (2 << 2)
#define EF_MISSION_TARGET (2 << 3)
#define EF_FLEES (2 << 4)
#define EF_FLEEING (2 << 5)
enum
{
@ -154,7 +156,8 @@ enum
{
TRIGGER_TIME,
TRIGGER_KILLS,
TRIGGER_WAYPOINT
TRIGGER_WAYPOINT,
TRIGGER_ESCAPES
};
enum
@ -206,6 +209,8 @@ enum
STAT_ALLIES_KILLED,
STAT_PLAYER_KILLED,
STAT_DISABLED,
STAT_ENEMIES_ESCAPED,
STAT_ALLIES_ESCAPED,
STAT_TIME,
STAT_MAX
};

2
src/galaxy/stats.c
View File

@ -32,6 +32,8 @@ static char *statDescription[] = {
"Allies Killed",
"Times Killed",
"Enemies Disabled",
"Enemies Escaped",
"Allies Escaped",
"STAT_TIME"
};

1
src/system/lookup.c
View File

@ -36,6 +36,7 @@ void initLookups(void)
addLookup("EF_DISABLE", EF_DISABLE);
addLookup("EF_IMMORTAL", EF_IMMORTAL);
addLookup("EF_MISSION_TARGET", EF_MISSION_TARGET);
addLookup("EF_FLEES", EF_FLEES);
addLookup("TT_DESTROY", TT_DESTROY);
addLookup("TT_DISABLE", TT_DISABLE);