setup_planet: Concentrate the mass mostly in the middle of the system

[sdl-planets] / planet.c

diff --git a/planet.c b/planet.c
index 1cf5d1ef50251cf947edf7f58f5b19156a8291d5..c7b01a05995f91442d0c550df6e259a49c4e2dc4 100644 (file)
--- a/planet.c
+++ b/planet.c
@@ -51,7 +51,7 @@ static void setup_planet(struct planet *p, double mass, double total_mass,
        double velocity;
        double distance;
 
-       distance = radius * get_random_double();
+       distance = radius * pow(get_random_double(), 2);
        velocity = sqrt(total_mass / radius);
 
        velocity *= pow(distance / radius, 0.2);