/* -------------------------------------------------------------------------- */
void LensFlare::update()
{
if (mHidden || !mLightNode) return;
/// If the Light is out of the Camera field Of View, the lensflare is hidden.
if (!mCamera->isVisible(getLightPosition()))
{
mHaloSet->setVisible(false);
mBurstSet->setVisible(false);
return;
}
Vector3 lightToCamera = mCamera->getDerivedPosition() - getLightPosition();
Vector3 CameraVect = lightToCamera.length() * mCamera->getDerivedDirection();
CameraVect += mCamera->getDerivedPosition();
// The LensFlare effect takes place along this vector.
Vector3 LFvect = (CameraVect - getLightPosition());
// LFvect += Vector3(-64,-64,0); // sprite dimension (to be adjusted, but not necessary)
// The different sprites are placed along this line.
mHaloSet->getBillboard(0)->setPosition( LFvect);
mHaloSet->getBillboard(1)->setPosition( LFvect*0.725);
mHaloSet->getBillboard(2)->setPosition( LFvect*0.250);
mBurstSet->getBillboard(0)->setPosition( LFvect*0.833);
mBurstSet->getBillboard(1)->setPosition( LFvect*0.500);
mBurstSet->getBillboard(2)->setPosition( LFvect*0.320);
// We redraw the lensflare (in case it was previouly out of the camera field, and hidden)
this->setVisible(true);
}
/* Makes perlin-noise clouds! Uses Ken Perlin's PerlinNoise3D function, taken from
http://local.wasp.uwa.edu.au/~pbourke/texture_colour/perlin */
void perlin_clouds(double level, double scale, double deg)
{
int x, z;
GLfloat *light = getLightPosition();
clouds_flag = 1;
level = bounds(level, 0, WORLDY-1);
for(x = 0; x < WORLDX; x++)
{
for(z = 0; z < WORLDZ; z++)
{
/* Overwrite whatever was here before, as long as it isn't the sun. */
if(!((float)x == light[0] && level == light[1] && (float)z == light[2]))
world[x][(int)level][z] = EMPTY;
/* Using deg (from update) as the y-axis, step through slices of
smooth volumetric noise to get realistic looking clouds. */
if((PerlinNoise3D(x/76.0, z/76.0, deg/108.0, 1.99, 2.1, 4) * scale) > 0)
world[x][(int)level][z] = WHITE;
}
}
}
int send_stuff_to_clients()
{
float px, py, pz, rx, ry, rz;
int i, j;
char buf[MESSAGE_LENGTH];
Stack s;
new_stack(&s);
for(i = 0; i < PLAYER_COUNT; i++)
{
if(player_flag[i])
{
player_flag[i] = 0;
if(i == 0)
{
getViewPosition(&px,&py,&pz);
getViewOrientation(&rx,&ry,&rz);
sprintf(buf, "player %f %f %f %d %d", px, py, pz, (int)ry, 0);
}
else
{
sprintf(buf, "player %f %f %f %d %d", playerPosition[i][0], playerPosition[i][1], playerPosition[i][2], (int)playerPosition[i][3], i);
}
push(s, buf);
}
}
if(sun_flag)
{
sun_flag = 0;
getLightPosition(&px,&py,&pz);
sprintf(buf, "sun %d %d %d", (int)px, (int)py, (int)pz);
push(s, buf);
}
if(clouds_flag)
{
clouds_flag = 0;
for(i = 0; i < WORLDX; i++)
for(j = 0; j < WORLDZ; j++)
if(world[i][96][j] == WHITE)
{
sprintf(buf, "cloud %d 90 %d %d", i, j, WHITE);
push(s, buf);
}
}
for(i = 0; i < MOB_COUNT; i++)
if(mobflag[i])
{
mobflag[i] = 0;
sprintf(buf, "mob %f %f %f %d %d", mobPosition[i][0], mobPosition[i][1], mobPosition[i][2], (int)mobPosition[i][3], i);
push(s, buf);
}
if(digflag[0])
{
digflag[0] = 0;
sprintf(buf, "dig %d %d %d", digflag[1], digflag[2], digflag[3]);
push(s, buf);
}
while(pop(s, buf) == 0)
{
for(i = 0; i < num_clients; i++)
{
sendall(fdlist[i], buf, MESSAGE_LENGTH);
}
}
sendall(fdlist[i], "done", MESSAGE_LENGTH);
kill_stack(&s);
return 0;
}
