2d camera?

nDEV · Post by **nDEV** » Thu May 17, 2007 6:13 pm

Hello , im making a 2d shooter game but with also some 3d effects!
Im stuck with the 2d camera , can someone help me?

The game is tile based , it uses a file to load every character , and then , it fills an array called char MAP[25][25].

Any help?

ufoz · Post by **ufoz** » Thu May 17, 2007 7:18 pm

Help with... what? Setting up the projection matrix?

nDEV · Post by **nDEV** » Thu May 17, 2007 7:32 pm

ufoz wrote:Help with... what? Setting up the projection matrix?

Well , i want the camera to follow player's object !
How can i do it?

thanks

nDEV · Post by **nDEV** » Fri May 18, 2007 7:36 pm

Im not asking for full source , just some theory , or maybe pseudo code!

th@nks.

rapso · Post by **rapso** » Fri May 18, 2007 9:43 pm

dont move the players object, just keep it in center of the camera/view during rendering, but move everything else.

nDEV · Post by **nDEV** » Fri May 18, 2007 10:35 pm

rapso wrote:dont move the players object, just keep it in center of the camera/view during rendering, but move everything else.

Wah , i think i know how to do it!

To keep the player in the center of the screen , i will need something like this:

x = WindowWIDTH /2 - PLAYERWIDTH/2;
y = WindowHeight /2 - PLAYERHEIGHT /2;

Then i just have to scroll the world(array) left/up/down/right ?..

rapso · Post by **rapso** » Fri May 18, 2007 10:44 pm

nDEV wrote: Then i just have to scroll the world(array) left/up/down/right ?..

exactly!
kinda by the reversed position of the players-object.

nDEV · Post by **nDEV** » Sat May 19, 2007 3:22 am

ok thanks!