Added ability to flag fighters and prevent team mates from killing mission targets.

data/missions/temper/03 - pirate uprising #3.json

@@ -31,6 +31,14 @@
 			"type" : "StaticDart",
 			"side" : "SIDE_PIRATE",
 			"x" : 800,
+			"y" : 200,
+			"flags" : "FF_NO_KILL+FF_DISABLE"
+		},
+		{
+			"name" : "TAF",
+			"type" : "Ray",
+			"side" : "SIDE_ALLIES",
+			"x" : 100,
 			"y" : 200
 		}
 	]

src/battle/ai.c

@@ -43,12 +43,14 @@ static void boost(void);
 static void slow(void);
 static int targetOutOfRange(void);
 static void moveToPlayer(void);
+static int canAttack(Fighter *f);
+static int selectWeapon(int type);
 
 void doAI(void)
 {
 	int r;
 	
-	if (!self->target || targetOutOfRange())
+	if (!self->target || targetOutOfRange() || self->target->systemPower <= 0)
 	{
 		findTarget();
 		
@@ -144,9 +146,11 @@ static void findTarget(void)
 	int closest = 2000;
 	int dist = 2000;
 	
+	self->target = NULL;
+	
 	for (f = battle.fighterHead.next ; f != NULL ; f = f->next)
 	{
-		if (f->side != self->side && f->health > 0)
+		if (f->side != self->side && f->health > 0 && canAttack(f))
 		{
 			dist = getDistance(self->x, self->y, f->x, f->y);
 			if (dist < closest)
@@ -158,6 +162,44 @@ static void findTarget(void)
 	}
 }
 
+static int canAttack(Fighter *f)
+{
+	self->selectedGunType = self->guns[0].type;
+	
+	if (f->flags & FF_DISABLE)
+	{
+		if (f->systemPower > 0)
+		{
+			return selectWeapon(BT_MAG);
+		}
+		
+		return 0;
+	}
+	
+	if (f->flags & FF_NO_KILL)
+	{
+		return selectWeapon(BT_LASER) || selectWeapon(BT_MAG);
+	}
+	
+	return 1;
+}
+
+static int selectWeapon(int type)
+{
+	int i;
+	
+	for (i = 0 ; i < MAX_FIGHTER_GUNS ; i++)
+	{
+		if (self->guns[i].type == type)
+		{
+			self->selectedGunType = type;
+			return 1;
+		}
+	}
+	
+	return 0;
+}
+
 static void faceTarget(Fighter *f)
 {
 	int dir;

src/battle/fighters.c

@@ -73,8 +73,6 @@ Fighter *spawnFighter(char *name, int x, int y, int side)
 		randomizeDart(f);
 	}
 	
-	f->selectedGunType = f->guns[0].type;
-	
 	f->defaultAction = doAI;
 	f->die = die;
 	

src/defs.h

@@ -50,6 +50,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #define BF_ENGINE			(2 << 0)
 #define BF_SYSTEM_DAMAGE	(2 << 1)
 
+#define FF_NONE				0
+#define FF_NO_KILL			(2 << 0)
+#define FF_DISABLE			(2 << 1)
+#define FF_IMMORTAL			(2 << 2)
+
 enum
 {
 	TA_LEFT,
@@ -145,7 +150,8 @@ enum
 	MS_FAILED
 };
 
-enum {
+enum
+{
 	WT_BUTTON,
 	WT_SELECT
 };

src/galaxy/mission.c

@@ -143,6 +143,11 @@ static void loadFighters(cJSON *node)
 			
 			STRNCPY(f->name, cJSON_GetObjectItem(node, "name")->valuestring, MAX_NAME_LENGTH);
 			
+			if (cJSON_GetObjectItem(node, "flags"))
+			{
+				f->flags = flagsToLong(cJSON_GetObjectItem(node, "flags")->valuestring);
+			}
+		
 			node = node->next;
 		}
 	}

src/galaxy/mission.h

@@ -34,6 +34,7 @@ extern void endSectionTransition(void);
 extern void playMusic(char *filename);
 extern void stopMusic(void);
 extern void initPlayer(void);
+extern long flagsToLong(char *flags);
 
 extern Battle battle;
 extern Fighter *player;

src/system/lookup.c

@@ -30,6 +30,10 @@ void initLookups(void)
 	memset(&head, 0, sizeof(Lookup));
 	tail = &head;
 	
+	addLookup("FF_NO_KILL", FF_NO_KILL);
+	addLookup("FF_DISABLE", FF_DISABLE);
+	addLookup("FF_IMMORTAL", FF_IMMORTAL);
+	
 	addLookup("TT_DESTROY", TT_DESTROY);
 	addLookup("TT_DISABLE", TT_DISABLE);