Maths question spawning ent around circle

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Maths question spawning ent around circle #399230 04/12/12 15:43 04/12/12 15:43
Joined: Feb 2007 Posts: 146 UK robertbruce OP Member
robertbruce OP Member Joined: Feb 2007 Posts: 146 UK	Hello, How could I code an object that spawns entities around it in a circle at a set distance. For instance, a random angle is chosen 1-360 and the object is spawned at distance of 100 at the random angle. I can think of several ways of doing this like random pan then move to set distance but there must be a mathematician who knows better. thanks, Rob

Re: Maths question spawning ent around circle [Re: robertbruce] #399232 04/12/12 16:07 04/12/12 16:07
Joined: Jun 2007 Posts: 1,337 Hiporope and its pain txesmi Serious User
txesmi Serious User Joined: Jun 2007 Posts: 1,337 Hiporope and its pain	Hi! Code: SpawnPos.x = Center.x + fsin ( Angle, Distance ); SpawnPos.y = Center.y + fcos ( Angle, Distance ); The conditions of the operations depend on the coordinate system, as well as the addition or subtraction of the same. Wellcome to trigonometry!

Re: Maths question spawning ent around circle [Re: robertbruce] #399233 04/12/12 16:08 04/12/12 16:08
Joined: Dec 2003 Posts: 988 Germany, Magdeburg JoGa User
JoGa User Joined: Dec 2003 Posts: 988 Germany, Magdeburg	I'm at cooking, so I can't write a roman, but here a idea: I made something like this some weeks ago (spawming PowerUps in a cycle) Code: int anzahl = 5; //numbers of Ents VECTOR vec_platzierung; var drehung = 360 / anzahl; vec_set(vec_platzierung, vector(300,0,0)); // place around 0,0,0 with distance of 300 Quants for(i=0;i<anzahl;i++) { vec_rotate(vec_platzierung, vector(drehung,0,0)); // turn the place around you = ent_create(...); } edit: txesmi was quicker and did it like a (math) boss ^^ Last edited by JoGa; 04/12/12 16:10.

Re: Maths question spawning ent around circle [Re: JoGa] #399250 04/12/12 21:59 04/12/12 21:59
Joined: Feb 2007 Posts: 146 UK robertbruce OP Member
robertbruce OP Member Joined: Feb 2007 Posts: 146 UK	thanks for the maths lessons. Will give them a try. best regards, Rob