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[ 8 posts ]

MOPixel won't stay put?

Author	Message
Awesomeness Joined: Sat Jun 19, 2010 5:02 pm Posts: 331 Location: Mekkan	MOPixel won't stay put? How come this script doesn't work? Code: function Create(self) self.StartPos = self.Pos; self.StartVel = self.Vel; end function Update(self) self.Pos = self.StartPos; self.Vel = self.StartVel; end
Wed Sep 14, 2011 1:39 am

Asklar Data Realms Elite Joined: Fri Jan 07, 2011 8:01 am Posts: 6211 Location: In your office, earning your salary.	Re: MOPixel won't stay put? And if you pin the MOPixel and give it a speed with lua?
Wed Sep 14, 2011 1:52 am

Awesomeness Joined: Sat Jun 19, 2010 5:02 pm Posts: 331 Location: Mekkan	Re: MOPixel won't stay put? No, Nonsequitorian, I need it to retain its speed, that way the trail still shows.
Wed Sep 14, 2011 1:54 am

Asklar Data Realms Elite Joined: Fri Jan 07, 2011 8:01 am Posts: 6211 Location: In your office, earning your salary.	Re: MOPixel won't stay put? If it doesn't change positions it won't have speed.
Wed Sep 14, 2011 2:11 am

TheLastBanana DRL Developer Joined: Wed Dec 13, 2006 5:27 am Posts: 3138 Location: A little south and a lot west of Moscow	Re: MOPixel won't stay put? No, if it doesn't change positions, it will still have speed, as long as the velocity is >0. Currently, self.StartPos and self.StartVel are storing a reference to self.Pos and self.Vel, respectively. That means every Update, you're essentially doing this: Code: self.Pos = self.Pos; self.Vel = self.Vel; Lua is a bit weird like that. To do what you want, set the variables like so: Code: self.StartPos = Vector(self.Pos.X, self.Pos.Y); self.StartVel = Vector(self.Vel.X, self.Vel.Y);
Wed Sep 14, 2011 2:21 am

Asklar Data Realms Elite Joined: Fri Jan 07, 2011 8:01 am Posts: 6211 Location: In your office, earning your salary.	Re: MOPixel won't stay put? Cortex Command is wierd
Wed Sep 14, 2011 2:25 am

Roast Veg Data Realms Elite Joined: Tue May 25, 2010 8:27 pm Posts: 4521 Location: Constant motion	Re: MOPixel won't stay put? Not really. Self.Pos is not a constant, and will change throughout the game. Self.Pos.X and Self.Pos.Y are constants at the time you reference them, so you have to reconstruct the Vector for the two inter-frame-constant variables in order to give a true starting value. Which is exactly what TLB said in more words.
Wed Sep 14, 2011 5:19 pm

Awesomeness Joined: Sat Jun 19, 2010 5:02 pm Posts: 331 Location: Mekkan	Re: MOPixel won't stay put? Iiiiiew references... I had to deal with them in Java using clone()... So much pain.... It worked.
Fri Sep 16, 2011 2:01 am

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MOPixel won't stay put?

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