1.1 --- a/src/app.cc	Sat Jan 31 20:01:35 2015 +0200
     1.2 +++ b/src/app.cc	Sun Feb 01 12:51:10 2015 +0200
     1.3 @@ -1,6 +1,12 @@
     1.4  #include <assert.h>
     1.5  #include "opengl.h"
     1.6  #include "app.h"
     1.7 +#include "user.h"
     1.8 +
     1.9 +static void draw_grid(int num, float sep);
    1.10 +
    1.11 +static User user;
    1.12 +static float eye_level = 1.6;
    1.13  
    1.14  bool app_init()
    1.15  {
    1.16 @@ -18,6 +24,15 @@
    1.17  {
    1.18  	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    1.19  
    1.20 +	glMatrixMode(GL_MODELVIEW);
    1.21 +	glLoadIdentity();
    1.22 +
    1.23 +	Matrix4x4 viewmat;
    1.24 +	user.posrot.calc_inv_matrix(&viewmat);
    1.25 +	glLoadTransposeMatrixf(viewmat.m[0]);
    1.26 +	glTranslatef(0, -eye_level, 0);
    1.27 +
    1.28 +	draw_grid(20, 1.0);
    1.29  
    1.30  	swap_buffers();
    1.31  	assert(glGetError() == GL_NO_ERROR);
    1.32 @@ -49,3 +64,41 @@
    1.33  void app_mouse_motion(int x, int y)
    1.34  {
    1.35  }
    1.36 +
    1.37 +void app_sball_motion(float x, float y, float z)
    1.38 +{
    1.39 +}
    1.40 +
    1.41 +void app_sball_rotate(float x, float y, float z)
    1.42 +{
    1.43 +}
    1.44 +
    1.45 +void app_sball_button(int bn, bool pressed)
    1.46 +{
    1.47 +}
    1.48 +
    1.49 +static void draw_grid(int num, float sep)
    1.50 +{
    1.51 +	int hnum = num / 2;
    1.52 +	float max_dist = hnum * sep;
    1.53 +
    1.54 +	glBegin(GL_LINES);
    1.55 +	glVertex3f(0, 0, -max_dist);
    1.56 +	glVertex3f(0, 0, max_dist);
    1.57 +	glVertex3f(-max_dist, 0, 0);
    1.58 +	glVertex3f(max_dist, 0, 0);
    1.59 +
    1.60 +	for(int i=1; i<hnum; i++) {
    1.61 +		float x = i * sep;
    1.62 +
    1.63 +		glVertex3f(-x, 0, -max_dist);
    1.64 +		glVertex3f(-x, 0, max_dist);
    1.65 +		glVertex3f(x, 0, -max_dist);
    1.66 +		glVertex3f(x, 0, max_dist);
    1.67 +		glVertex3f(-max_dist, 0, -x);
    1.68 +		glVertex3f(max_dist, 0, -x);
    1.69 +		glVertex3f(-max_dist, 0, x);
    1.70 +		glVertex3f(max_dist, 0, x);
    1.71 +	}
    1.72 +	glEnd();
    1.73 +}