seamulator.cpp

   1 #include <ctime>
   2 #include <cmath>
   3 #include <memory>
   4
   5 #include <GL/glut.h>
   6
   7 #include "sea.h"
   8 #include "seaview.h"
   9 #include "watersurface.h"
  10
  11 const int LATTICE_SIZE{128};
  12 const double LATTICE_EXTEND{10};
  13 const int INIT_WINDOW_POS_X{50};
  14 const int INIT_WINDOW_POS_Y{50};
  15 const int INIT_WINDOW_WIDTH{800};
  16 const int INIT_WINDOW_HEIGHT{600};
  17 const double INIT_VIEW_DISTANCE{LATTICE_EXTEND * 1.5};
  18 const double INIT_VIEW_AZIMUTH{0};
  19 const double INIT_VIEW_ALTITUDE{M_PI / 4};
  20 const char WINDOW_TITLE[]{"seamulator"};
  21
  22 SeaPtr sea;
  23 WaterSurfacePtr surface;
  24 std::unique_ptr<SeaView> seaView;
  25
  26 void glDisplayFunc();
  27 void glReshapeFunc(int width, int height);
  28 void glMouseFunc(int button, int state, int x, int y);
  29 void glMotionFunc(int x, int y);
  30
  31 int main(int argc, char** argv)
  32 {
  33   std::srand(std::time(0));
  34
  35   surface = std::make_shared<WaterSurface>(LATTICE_SIZE, LATTICE_EXTEND);
  36   sea = std::make_shared<Sea>(surface);
  37   seaView = std::make_unique<SeaView>(INIT_VIEW_DISTANCE, INIT_VIEW_AZIMUTH,
  38                                       INIT_VIEW_ALTITUDE);
  39
  40   glutInit(&argc, argv);
  41   glutInitDisplayMode(GLUT_DOUBLE);
  42   glutInitWindowSize(INIT_WINDOW_WIDTH, INIT_WINDOW_HEIGHT);
  43   glutInitWindowPosition(INIT_WINDOW_POS_X, INIT_WINDOW_POS_Y);
  44   glutCreateWindow(WINDOW_TITLE);
  45   glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
  46
  47   glutDisplayFunc(glDisplayFunc);
  48   glutReshapeFunc(glReshapeFunc);
  49   glutMouseFunc(glMouseFunc);
  50   glutMotionFunc(glMotionFunc);
  51
  52   glutMainLoop();
  53
  54   return 0;
  55 }
  56
  57 void glDisplayFunc()
  58 {
  59   glClear(GL_COLOR_BUFFER_BIT);
  60
  61   seaView->setupView();
  62   sea->update();
  63   surface->draw();
  64
  65   glutSwapBuffers();
  66   glutPostRedisplay();
  67 }
  68
  69 void glReshapeFunc(int width, int height)
  70 {
  71   glMatrixMode(GL_PROJECTION);
  72   glLoadIdentity();
  73   gluPerspective(50.0, ((float)width/(float)height), 0, 1000.0);
  74   glViewport(0, 0, width, height);
  75 }
  76
  77 void glMouseFunc(int button, int state, int x, int y)
  78 {
  79   seaView->onMouseEvent(button, state, x, y);
  80 }
  81
  82 void glMotionFunc(int x, int y)
  83 {
  84   seaView->onMouseMove(x, y);
  85 }