Mines have a short radar range.

src/battle/mine.c

@@ -21,6 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "mine.h"
 
 static void think(void);
+static void die(void);
 static void lookForFighters(void);
 
 Entity *spawnMine(void)
@@ -31,6 +32,8 @@ Entity *spawnMine(void)
 	mine->health = mine->maxHealth = 1;
 	mine->texture = getTexture("gfx/entities/mine.png");
 	mine->action = think;
+	mine->die = die;
+	mine->flags = EF_TAKES_DAMAGE+EF_SHORT_RADAR_RANGE;
 
 	return mine;
 }
@@ -47,6 +50,13 @@ static void think(void)
 	lookForFighters();
 }
 
+static void die(void)
+{
+	addMineExplosion();
+	
+	self->alive = ALIVE_DEAD;
+}
+
 static void lookForFighters(void)
 {
 	Entity *e, **candidates;
@@ -59,8 +69,6 @@ static void lookForFighters(void)
 		if (e->health > 0 && e->type == ET_FIGHTER && getDistance(self->x, self->y, e->x, e->y) <= 128)
 		{
 			self->health = 0;
-			
-			addMineExplosion();
 		}
 	}
 }

src/battle/radar.c

@@ -34,6 +34,7 @@ void drawRadar(void)
 {
 	SDL_Rect r;
 	Entity *e;
+	int dist, inRange;
 	
 	blit(radarTexture, SCREEN_WIDTH - 85, SCREEN_HEIGHT - 85, 1);
 	
@@ -43,7 +44,13 @@ void drawRadar(void)
 	
 	for (e = battle.entityHead.next ; e != NULL ; e = e->next)
 	{
-		if (e->active && getDistance(e->x, e->y, player->x, player->y) / radarRanges[battle.radarRange] < 70)
+		dist = getDistance(e->x, e->y, player->x, player->y);
+		
+		if (e->active)
+		{
+			inRange = (!(e->flags & EF_SHORT_RADAR_RANGE)) ? (dist / radarRanges[battle.radarRange]) < 70 : dist < 500;
+			
+			if (inRange)
 			{
 				r.x = SCREEN_WIDTH - 85;
 				r.y = SCREEN_HEIGHT - 85;
@@ -85,6 +92,7 @@ void drawRadar(void)
 			}
 		}
 	}
+}
 
 void drawRadarRangeWarning(void)
 {

src/defs.h

@@ -97,6 +97,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #define EF_AI_LEADER			(2 << 14)
 #define EF_ROPED_ATTACHED		(2 << 15)
 #define EF_NO_KILL_INC			(2 << 16)
+#define EF_SHORT_RADAR_RANGE	(2 << 17)
 
 #define AIF_NONE				0
 #define AIF_FOLLOWS_PLAYER		(2 << 0)