#mouselook

[thebiteycat]

( -`д´- ) Devil Child by Rikku Yheng | http://rikkuritz.tumblr.com Via Flickr: Picture for friend Noeky.

[gizmorati]

System Shock: Enhanced Edition adds mouselook, higher resolutions

System Shock: Enhanced Edition adds mouselook, higher resolutions At gizmorati.com, the privacy of our visitors is of extreme importance to us (See this article to learn more about Privacy Policies.). This privacy policy document outlines the types of personal information is received and collected by gizmorati.com and how it is used. Log FilesLike many other... http://gizmorati.com/2015/09/22/system-shock-enhanced-edition-adds-mouselook-higher-resolutions/

[iwsdev]

It's now possible to look around by pressing and holding the left mouse button, also known as "mouse look". And the music boxes are 2x2 dm big - a little more manageable.

[squareys]

Mouselook and SDL - Code

Okay, here is some code for mouselook with SDL...

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struct {     int x, y;     //In this case: the position where the mouse is held at     bool trap; //flag for holding mouse at one place } mouse; void MouseMotion(){     /* Set x and y to the current mouse position */     int x, y;     SDL_GetMouseState(&x, &y);     int xdiff = x - mouse.x; //Calculate difference in x     int ydiff = y - mouse.y; //Calculate difference in y     /* rotate camera relative to what it was before */     Cam->relRot( (float) ydiff, (float) xdiff, 0.0f); //Alternative: use gluLookAt(...);     // ( xdiff and ydiff are in the right place... comment, if you need explaination)     if (mouse.trap){         //Reset Mouse Position to middle of screen         SDL_WarpMouse(mouse.x, mouse.y); //Set Cursor     } } int main (){     //Initialization...blabla     bool done = false;     while(!done) {         SDL_Event event;         while(SDL_PollEvent(&event)) {             switch(event.type)                 case SDL_MOUSEMOTION:                     MouseMotion();                     break;                 //... ther Events ...         }         //... do other things     }     //End }

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This code is only a bunch of fragments to keep it simple. "Cam" is a camera class I created to handle every camera-related stuff (Position/Rotation...). "RelRot" adds the given vector values to the rotation-vector of the camera. When rendering the sceen, I rotate the Projection Matrix by the rotation-vector of the camera.

btw: this is not exacly the code I use in Mineshooter. I use more classes there ;)

Anyway, I hope this helps somebody out there :)

[squareys]

Fixed the SDL and Mouselook Problem

After spending hours trying to figure out why my mouselook function didn't work with SDL, I finally got a solution.

The problem was that I didn't use SDL_PumpEvents() before calling SDL_GetMouseState(). But if I do that I get the next problem: my Keyboard Events get delayed because the event-queue got enormous.

In the end I decided to put the mouse motion handling in where I handled the SDL-events. That worked. I'll post some code very soon, so if somebody has a similar problem, he/she doesn't need to spend hours on it, as I did.

Greetings, Squareys