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 namespace Msp {
   8 namespace DemoScene {
   9
  10 LaunchScreen::LaunchScreen(Resources &resources):
  11         font(resources.get_ui_font()),
  12         tech(resources.get_ui_text_technique()),
  13         countdown(font, &tech),
  14         countdown_value(0),
  15         enter_prompt(font, &tech),
  16         esc_prompt(font, &tech)
  17 {
  18         countdown.set_alignment(GL::Text::CENTER);
  19
  20         enter_prompt.set_alignment(GL::Text::CENTER);
  21         enter_prompt.set_text("Press ENTER now to remain windowed");
  22
  23         esc_prompt.set_alignment(GL::Text::CENTER);
  24         esc_prompt.set_text("Press ESC at any time to exit");
  25
  26         camera.set_orthographic(1920, 1080);
  27         camera.set_depth_clip(-1, 1);
  28 }
  29
  30 void LaunchScreen::set_countdown(unsigned c)
  31 {
  32         if(c!=countdown_value)
  33         {
  34                 countdown_value = c;
  35                 countdown.set_text(format("Going fullscreen in %d...", countdown_value));
  36         }
  37 }
  38
  39 void LaunchScreen::render()
  40 {
  41         GL::Framebuffer::system().clear(GL::COLOR_BUFFER_BIT);
  42         GL::Bind blend(GL::Blend::alpha());
  43         GL::Renderer renderer(&camera);
  44         renderer.transform(GL::Matrix().scale(48).translate(0, 1.2, 0));
  45         countdown.render(renderer);
  46         renderer.transform(GL::Matrix::translation(0, -1.2, 0));
  47         enter_prompt.render(renderer);
  48         renderer.transform(GL::Matrix::translation(0, -1.2, 0));
  49         esc_prompt.render(renderer);
  50 }
  51
  52 } // namespace DemoScene
  53 } // namespace Msp