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Added camera zoom

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This commit is contained in:
kennyboy55
2016-04-21 15:23:32 +02:00
parent ce99f3eb08
commit 3acb2b9370
1 changed files with 11 additions and 4 deletions
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OpenGL1/Main.cpp
+11 -4
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@@ -16,6 +16,7 @@ float rotation = 0;
float keyrotationx = 0;
float keyrotationy = 0;
float changelocation = 0;
float camerazoom = 5;
float color = 0;
int width = 800;
int height = 600;
@@ -77,14 +78,16 @@ void display()
//overlay
set_view(1);
std::string str0 = "FPS: " + std::to_string(fps);
std::string str1 = "Wireframe: " + std::string(wireframe ? "On" : "Off");
std::string str2 = "Projectie: " + std::string(persp ? "Perspective" : "Ortho");
std::string str3 = "Rotation: " + std::string(rotatec ? "On" : "Off");
std::string str1 = "Wireframe: " + std::string(wireframe ? "On" : "Off") + " (L)";
std::string str2 = "Projectie: " + std::string(persp ? "Perspective" : "Ortho") + " (SPC)";
std::string str3 = "Rotation: " + std::string(rotatec ? "On" : "Off") + " (R)";
std::string str4 = "Zoom: " + std::to_string(camerazoom) + " (+/-)";
draw_string(str0, 10, 30);
draw_string(str1, 10, 60);
draw_string(str2, 10, 90);
draw_string(str3, 10, 120);
draw_string(str4, 10, 150);
frameCount++;
@@ -116,7 +119,7 @@ void set_view(int view)
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(cos(cameraRot) * 5, 5, sin(cameraRot) * 5,
gluLookAt(cos(cameraRot) * camerazoom, camerazoom, sin(cameraRot) * camerazoom,
0, 0, 0,
0, 1, 0);
}
@@ -160,6 +163,10 @@ void keyboard(unsigned char key, int x, int y)
changelocation += 2.0f;
else if (key == 101)
changelocation -= 2.0f;
else if (key == 43)
camerazoom -= (camerazoom <= 1.7f ? 0 : 0.2f);
else if (key == 45)
camerazoom += (camerazoom >= 9.9f ? 0 : 0.2f);
}
void specialkeyboard(int key, int x, int y)