source/launchscreen.cpp

   1 #include <msp/gl/blend.h>
   2 #include <msp/gl/framebuffer.h>
   3 #include <msp/gl/renderer.h>
   4 #include <msp/strings/format.h>
   5 #include "launchscreen.h"
   6
   7 using namespace Msp;
   8
   9 LaunchScreen::LaunchScreen(DataFile::Collection &resources):
  10         font(resources.get<GL::Font>("ikarius-48.font")),
  11         tech(resources.get<GL::Technique>("basic_text.tech")),
  12         countdown(font, &tech),
  13         countdown_value(0),
  14         enter_prompt(font, &tech),
  15         esc_prompt(font, &tech)
  16 {
  17         countdown.set_alignment(GL::Text::CENTER);
  18
  19         enter_prompt.set_alignment(GL::Text::CENTER);
  20         enter_prompt.set_text("Press ENTER now to remain windowed");
  21
  22         esc_prompt.set_alignment(GL::Text::CENTER);
  23         esc_prompt.set_text("Press ESC at any time to exit");
  24
  25         camera.set_orthographic(1920, 1080);
  26         camera.set_depth_clip(-1, 1);
  27 }
  28
  29 void LaunchScreen::set_countdown(unsigned c)
  30 {
  31         if(c!=countdown_value)
  32         {
  33                 countdown_value = c;
  34                 countdown.set_text(format("Going fullscreen in %d...", countdown_value));
  35         }
  36 }
  37
  38 void LaunchScreen::render()
  39 {
  40         GL::Framebuffer::system().clear(GL::COLOR_BUFFER_BIT);
  41         GL::Bind blend(GL::Blend::alpha());
  42         GL::Renderer renderer(&camera);
  43         renderer.transform(GL::Matrix().scale(48).translate(0, 1.2, 0));
  44         countdown.render(renderer);
  45         renderer.transform(GL::Matrix::translation(0, -1.2, 0));
  46         enter_prompt.render(renderer);
  47         renderer.transform(GL::Matrix::translation(0, -1.2, 0));
  48         esc_prompt.render(renderer);
  49 }