void GameClass::DrawSpike (float x, float y, float xf, float yf) const {
if ((xf - x < cTileSize/6) ||
(rand()%1001 < 0)) {
float z = y + 0.2*cTileSize*(rand()%1001)/1000.0;
al_draw_filled_triangle((x+xf)/2, z+1, xf, yf, x, yf, cWhite);
return;
}
float xm = x + (xf - x)*(1 + 2*(rand()%1001)/1000.0)/4;
DrawSpike( x, y, xm, yf);
DrawSpike(xm, y, xf, yf);
}
void GameClass::DrawGameGrid () const {
ALLEGRO_COLOR color(cWhite);
for (size_t i = 0; i < gridHeight; i++) {
for (size_t j = 0; j < gridWidth; j++) {
int x = j*cTileSize, y = i*cTileSize,
xf = (j+1)*cTileSize, yf = (i+1)*cTileSize;
switch (gameGrid[i][j]) {
case cBlock:
if (i > 0 && gameGrid[i-1][j] == cNone)
DrawFloor(x, y, xf, yf);
else
DrawBlock(x, y, xf, yf);
break;
case cSpike:
DrawSpike(x, y, xf, yf);
break;
case cNone:
if (i < gridHeight-1 && gameGrid[i+1][j] == cBlock)
DrawGrass(x, y, xf, yf);
//Nothing
default:
break;
}
}
}
float x = regionExit->GetX() +
cTileSize*regionExit->GetWidth()/2;
float y = regionExit->GetY();
al_draw_text(hugeFont, cWhite, x, y,
ALLEGRO_ALIGN_CENTRE, cExit[language].c_str());
}
void Camera::Draw()
{
if (!m_body) return;
m_frustum.Enable();
glPushAttrib(GL_ALL_ATTRIB_BITS);
glClearColor(0,0,0,0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
matrix4x4d trans2bg;
Frame::GetFrameTransform(Pi::game->GetSpace()->GetRootFrame(), m_camFrame, trans2bg);
trans2bg.ClearToRotOnly();
Pi::game->GetSpace()->GetBackground().Draw(trans2bg);
int num_lights = 0;
position_system_lights(m_camFrame, Pi::game->GetSpace()->GetRootFrame(), num_lights);
if (num_lights == 0) {
// no lights means we're somewhere weird (eg hyperspace). fake one
// fake one up and give a little ambient light so that we can see and
// so that things that need lights don't explode
float lightPos[4] = { 0,0,0,0 };
float lightCol[4] = { 1.0, 1.0, 1.0, 0 };
float ambCol[4] = { 1.0,1.0,1.0,0 };
glLightfv(GL_LIGHT0, GL_POSITION, lightPos);
glLightfv(GL_LIGHT0, GL_DIFFUSE, lightCol);
glLightfv(GL_LIGHT0, GL_AMBIENT, ambCol);
glLightfv(GL_LIGHT0, GL_SPECULAR, lightCol);
glEnable(GL_LIGHT0);
num_lights++;
}
Render::State::SetNumLights(num_lights);
float znear, zfar;
Render::GetNearFarClipPlane(znear, zfar);
Render::State::SetZnearZfar(znear, zfar);
for (std::list<BodyAttrs>::iterator i = m_sortedBodies.begin(); i != m_sortedBodies.end(); ++i) {
BodyAttrs *attrs = &(*i);
double rad = attrs->body->GetClipRadius();
if (!m_frustum.TestPointInfinite((*i).viewCoords, rad))
continue;
// draw spikes for far objects
double screenrad = 500 * rad / attrs->camDist; // approximate pixel size
if (!attrs->body->IsType(Object::STAR) && screenrad < 2) {
if (!attrs->body->IsType(Object::PLANET)) continue;
// absolute bullshit
double spikerad = (7 + 1.5*log10(screenrad)) * rad / screenrad;
DrawSpike(spikerad, attrs->viewCoords, attrs->viewTransform);
}
else
attrs->body->Render(attrs->viewCoords, attrs->viewTransform);
}
Sfx::RenderAll(Pi::game->GetSpace()->GetRootFrame(), m_camFrame);
Render::State::UseProgram(0);
Render::UnbindAllBuffers();
m_body->GetFrame()->RemoveChild(m_camFrame);
delete m_camFrame;
m_camFrame = 0;
glDisable(GL_LIGHT0);
glDisable(GL_LIGHT1);
glDisable(GL_LIGHT2);
glDisable(GL_LIGHT3);
glPopAttrib();
m_frustum.Disable();
}
void CLineChartCtrl::Go()
{
DrawSpike();
Invalidate(FALSE);
}