107 lines
2.1 KiB
C++
107 lines
2.1 KiB
C++
|
|
#include <stdlib.h>
|
|
#include <time.h>
|
|
#include <math.h>
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
|
|
#include <GL/gl.h>
|
|
#include <GL/glu.h>
|
|
|
|
#include "Tunnel.h"
|
|
|
|
using namespace std;
|
|
|
|
#define N_INITIAL_LAYERS 5
|
|
#define N_LOGOS_PER_RING 12
|
|
#define RING_RADIUS 18
|
|
#define BREAKOFF_DIST 80
|
|
#define RING_LAYER_DIST 10
|
|
#define XLATE_RATE 0.02
|
|
|
|
Tunnel::Tunnel()
|
|
{
|
|
m_last_ticks = 0;
|
|
srand(time(NULL) + getpid());
|
|
}
|
|
|
|
Tunnel::~Tunnel()
|
|
{
|
|
}
|
|
|
|
bool Tunnel::expose (GnomeScreensaver & gs)
|
|
{
|
|
if (m_last_ticks == 0)
|
|
m_last_ticks = gs.getTicks();
|
|
uint64_t ticks = gs.getTicks();
|
|
int elapsed = ticks - m_last_ticks;
|
|
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
|
|
for (list<LBStruct>::const_iterator it = m_logos.begin();
|
|
it != m_logos.end();
|
|
it++)
|
|
{
|
|
glPushMatrix();
|
|
glTranslatef(0, m_offset + it->offset, 0);
|
|
glRotatef(it->trot, 0, 1, 0);
|
|
glTranslatef(RING_RADIUS, 0, 0);
|
|
glRotatef(-90.0, 0, 0, 1);
|
|
glRotatef(90.0, 1, 0, 0);
|
|
glRotatef(it->zrot, 0, 0, 1);
|
|
m_logobox.draw();
|
|
glPopMatrix();
|
|
}
|
|
|
|
m_last_ticks = ticks;
|
|
|
|
return true;
|
|
}
|
|
|
|
void Tunnel::addRing()
|
|
{
|
|
for (int j = 0; j < N_LOGOS_PER_RING; j++)
|
|
{
|
|
float zrot = ((j + m_ring_rot_idx) & 0x3) * 90.0;
|
|
float trot = j * 360.0 / N_LOGOS_PER_RING;
|
|
LBStruct lbs = {
|
|
m_offset,
|
|
zrot,
|
|
trot,
|
|
{0, 0, 1}
|
|
};
|
|
m_logos.push_back(lbs);
|
|
}
|
|
m_ring_rot_idx++;
|
|
}
|
|
|
|
bool Tunnel::configure (GnomeScreensaver & gs)
|
|
{
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
gluPerspective(60.0, gs.getAspectRatio() / gs.getNumMonitors(),
|
|
0.01, 1000.0);
|
|
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
gluLookAt(0, 0, 0, 0, 1, 0, 0, 0, 1);
|
|
|
|
glViewport(0, 0, gs.getWidth(), gs.getHeight());
|
|
|
|
for (int i = 0; i <= N_INITIAL_LAYERS; i++)
|
|
{
|
|
m_offset = (N_INITIAL_LAYERS - i) * RING_LAYER_DIST,
|
|
addRing();
|
|
}
|
|
|
|
m_offset = 0.0;
|
|
m_last_ring_offset = 0.0;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool Tunnel::update (GnomeScreensaver & gs)
|
|
{
|
|
return true;
|
|
}
|