Modify loop in moveProjectiles and fix zombies bug

Fix all zombies freezing while Projectile is live
Moved usleep outside of for loop in moveProjectiles

weaponsSystem.c

@@ -48,12 +48,12 @@ void moveProjectiles(){
 				projectiles[i].isAlive=0;
 				mvwaddch(viewportWin, projectiles[i].curYpos, projectiles[i].curXpos, ' ');
 			}
-			usleep(30000);
 		}
 		else{
 			mvwaddch(viewportWin, projectiles[i].curYpos, projectiles[i].curXpos, ' ');
 		}
 	}
+	usleep(30000);
 }
 
 void fireWeapon(struct Weapon *weaponRef, char *direction){

zombies.c

@@ -48,7 +48,7 @@ void moveZombies(){
 	int i;
 	for(i=1;i<MAX_ALIVE;i++){
 		if(allEntities[i].isAlive){	 
-			int moveCheck = rand()%2000;
+			int moveCheck = rand()%20;
 			if(moveCheck==1){
 				getNextPos(allEntities[i].curYpos,allEntities[i].curXpos,allEntities[0].curYpos,allEntities[0].curXpos);
 				allEntities[i].nextYpos = nextPos.y;