Moved view code to separate class

[seamulator.git] / seamulator.cpp

diff --git a/seamulator.cpp b/seamulator.cpp
index 3d6a5397125afd4ae82ff378489d02f57299250e..d3ac1c48172ed34cd6d27c9a8fee73e76f53879c 100644 (file)
--- a/seamulator.cpp
+++ b/seamulator.cpp
@@ -1,9 +1,11 @@
 #include <ctime>
 #include <cmath>
+#include <memory>
 
 #include <GL/glut.h>
 
 #include "sea.h"
+#include "seaview.h"
 #include "watersurface.h"
 
 const int LATTICE_SIZE = 10;
@@ -11,14 +13,7 @@ const double LATTICE_UNIT = 1;
 
 SeaPtr sea;
 WaterSurfacePtr surface;
-
-struct
-{
-  float lookRadius = LATTICE_SIZE*LATTICE_UNIT*1.5;
-  float lookAz = 0;
-  float lookAlt = M_PI/4;
-  float fstMouseAngle[2], oldLookAz, oldLookAlt;
-} view;
+std::unique_ptr<SeaView> seaView;
 
 void glDisplayFunc();
 void glReshapeFunc(int width, int height);
@@ -31,13 +26,14 @@ int main(int argc, char** argv)
 
   surface = std::make_shared<WaterSurface>(LATTICE_SIZE, LATTICE_UNIT);
   sea = std::make_shared<Sea>(surface);
+  seaView = std::make_unique<SeaView>(LATTICE_SIZE * LATTICE_UNIT * 1.5,
+                                     0, M_PI/4);
 
   glutInit(&argc, argv);
   glutInitDisplayMode(GLUT_DOUBLE);
   glutInitWindowSize(300, 300);
   glutInitWindowPosition(100, 100);
   glutCreateWindow("seamulator");
-
   glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
 
   glutDisplayFunc(glDisplayFunc);
@@ -52,81 +48,30 @@ int main(int argc, char** argv)
 
 void glDisplayFunc()
 {
-  glMatrixMode(GL_MODELVIEW);
-  glLoadIdentity();
-
   glClear(GL_COLOR_BUFFER_BIT);
 
+  seaView->setupView();
   sea->update();
   surface->draw();
 
   glutSwapBuffers();
-
   glutPostRedisplay();
 }
 
-void updateView(int width, int height)
+void glReshapeFunc(int width, int height)
 {
   glMatrixMode(GL_PROJECTION);
   glLoadIdentity();
-
   gluPerspective(50.0, ((float)width/(float)height), 0, 1000.0);
   glViewport(0, 0, width, height);
-
-  float eyePos[3];
-  eyePos[0] = view.lookRadius*cos(view.lookAlt)*sin(view.lookAz);
-  eyePos[1] = view.lookRadius*cos(view.lookAlt)*cos(view.lookAz);
-  eyePos[2] = view.lookRadius*sin(view.lookAlt);
-
-  gluLookAt(eyePos[0], eyePos[1], eyePos[2],
-           0, 0, 0,
-           0, 0, 1);
-}
-
-void updateView()
-{
-  updateView(glutGet(GLUT_WINDOW_WIDTH), glutGet(GLUT_WINDOW_HEIGHT));
-}
-
-void glReshapeFunc(int width, int height)
-{
-  updateView(width, height);
 }
 
 void glMouseFunc(int button, int state, int x, int y)
 {
-  if (button == 3 && state == 0)
-    {
-      view.lookRadius += view.lookRadius*0.1;
-      updateView();
-    }
-
-  else if (button == 4 && state == 0)
-    {
-      view.lookRadius -= view.lookRadius*0.1;
-      updateView();
-    }
-
-  else if (button == 0 && state == 0) {
-    view.fstMouseAngle[0] = x;
-    view.fstMouseAngle[1] = y;
-    view.oldLookAz = view.lookAz;
-    view.oldLookAlt = view.lookAlt;
-  }
-
+  seaView->onMouseEvent(button, state, x, y);
 }
 
 void glMotionFunc(int x, int y)
 {
-  view.lookAlt =
-    fmod(view.oldLookAlt +
-        (float)((y-view.fstMouseAngle[1])*2*M_PI/glutGet(GLUT_WINDOW_HEIGHT)),
-        (float)(2*M_PI));
-
-  view.lookAz =
-    fmod(view.oldLookAz +
-        (float)((x-view.fstMouseAngle[0])*2*M_PI/glutGet(GLUT_WINDOW_WIDTH)),
-        (float)(2*M_PI));
-
-  updateView();
+  seaView->onMouseMove(x, y);
 }