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Added mouse navigation.

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This commit is contained in:
Camilla Berglund 2010-11-17 23:29:28 +01:00
parent 1057630e1f
commit 3350cc73aa
1 changed files with 45 additions and 0 deletions
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45
examples/wave.c
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@ -27,6 +27,10 @@ GLfloat alpha = 210.f, beta = -70.f;
GLfloat zoom = 2.f; GLfloat zoom = 2.f;
GLboolean running = GL_TRUE; GLboolean running = GL_TRUE;
GLboolean locked = GL_FALSE;
int cursorX;
int cursorY;
struct Vertex struct Vertex
{ {
@ -293,6 +297,45 @@ void key_callback(GLFWwindow window, int key, int action)
} }
//========================================================================
// Callback function for mouse button events
//========================================================================
void mouse_button_callback(GLFWwindow window, int button, int action)
{
if (button != GLFW_MOUSE_BUTTON_LEFT)
return;
if (action == GLFW_PRESS)
{
glfwDisable(window, GLFW_MOUSE_CURSOR);
locked = GL_TRUE;
}
else
{
locked = GL_FALSE;
glfwEnable(window, GLFW_MOUSE_CURSOR);
}
}
//========================================================================
// Callback function for mouse motion events
//========================================================================
void mouse_position_callback(GLFWwindow window, int x, int y)
{
if (locked)
{
alpha += (x - cursorX) / 10.f;
beta += (y - cursorY) / 10.f;
}
cursorX = x;
cursorY = y;
}
//======================================================================== //========================================================================
// Callback function for window resize events // Callback function for window resize events
//======================================================================== //========================================================================
@ -344,6 +387,8 @@ int main(int argc, char* argv[])
// Window resize handler // Window resize handler
glfwSetWindowSizeCallback(window_resize_callback); glfwSetWindowSizeCallback(window_resize_callback);
glfwSetMouseButtonCallback(mouse_button_callback);
glfwSetMousePosCallback(mouse_position_callback);
// Initialize OpenGL // Initialize OpenGL
init_opengl(); init_opengl();