aug00/sharp/harness/drivershell.cpp - master - redgpu/GDMagArchive

aug00/sharp/harness/drivershell.cpp
141 строка3 KB
Don Williamson
first commit
31 окт 2016, 17:03
31 окт 2016, 17:03c823e7b
// This is a shell for applications to use in implementing their main loop; it just
// does some basic GL stuff, turns on a light, etc.
//
// BHS 11/18/99
#include <harness/main.h>
#include <harness/CameraMover.h>
#include <harness/FreeCamera.h>
#include <harness/PlatformSpecific.h>
#include <harness/GlobalCamera.h>
#include <harness/OpenGL.h>
#include <harness/PlatformSpecific.h>

#include <math/Vector.h>

#include <iostream>
#include <gl/glut.h>

#pragma warning (disable: 4786)

GLenum polyMode = GL_FILL;

const char* appWindowName()
{
  return "Unnamed Player";
}

void appCleanup()
{
}

void appInit(int argc, char** argv)
{
  glEnable(GL_DEPTH_TEST);
  glEnable(GL_CULL_FACE);
  
  glEnable(GL_LIGHTING);
  glEnable(GL_LIGHT0);
  glEnable(GL_COLOR_MATERIAL);
  
  float ones[4] = {1.0f, 1.0f, 1.0f, 1.0f};
  float zeros[4] = {0.0f, 0.0f, 0.0f, 0.0f};
  glLightfv(GL_LIGHT0, GL_DIFFUSE, ones);
  glLightfv(GL_LIGHT0, GL_SPECULAR, zeros);

  glLightf(GL_LIGHT0, GL_CONSTANT_ATTENUATION, 0);
  glLightf(GL_LIGHT0, GL_LINEAR_ATTENUATION, 0.03);
  glLightf(GL_LIGHT0, GL_QUADRATIC_ATTENUATION, 0);

  glColor3f(0.0f,0.2f,1.0f);
  glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, zeros);
  glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 0.0f);

  // Setup our mover so we can have mouse-driven camera movement.
  CameraMover::initCallbacks();
  CameraMover::registerPersona(new FreeCamera());

  GlobalCamera::Instance()->setFovY(40);
  GlobalCamera::Instance()->getPosition().x = 5;
  GlobalCamera::Instance()->getPosition().y = 25;
  GlobalCamera::Instance()->getPosition().z = 5;
  GlobalCamera::Instance()->getPosition().setOrientation(Vector(-5,-25,-5));
  GlobalCamera::Instance()->getPosition().setUpVector(Vector(0,0,1));

  // Also, make the mouse invisible since we do mlook-style movement now!
  glutSetCursor(GLUT_CURSOR_NONE);

  // Rev up the extensions.
  OpenGL::initExtensions();
}

void appKey(unsigned char keyHit, int x, int y)
{
  // Note that we're case-insensitive here (- and _ do the same thing).
  switch ( keyHit )
  {
  case ')':
  case '0':
    break;

  case '(':
  case '9':
    break;

  case '-':
  case '_':
    break;

  case '=':
  case '+':
    break;

  case 'p':
  case 'P':
    polyMode = (polyMode == GL_FILL) ? GL_LINE : GL_FILL;
    break;

  case '.':
  case '>':
    break;

  case ',':
  case '<':
    break;

  case 'l':
  case 'L':
    {
      if (glIsEnabled(GL_LIGHTING))
      {
        glDisable(GL_LIGHTING);
      }
      else
      {
        glEnable(GL_LIGHTING);
      }
    }
    break;
  }
}

void appDraw()
{
  glClear(GL_DEPTH_BUFFER_BIT);

  // Update any mouse movement.
  CameraMover::update();

  // Position the light.
  float lightPos[4];
  lightPos[0] = 10; 
  lightPos[1] = 10; 
  lightPos[2] = 10; 
  lightPos[3] = 1.0f; 
  glLightfv(GL_LIGHT0, GL_POSITION, lightPos);

  // Re-init the camera.
  GlobalCamera::Instance()->makeCurrent();

  // Draw our surface.
  glPolygonMode(GL_FRONT_AND_BACK, polyMode);
}