protected override void OnUpdate()
{
if (!initialized)
{
return;
}
base.OnUpdate(); // advances input state one frame
GLFWNativeCalls.lockStreams();
if (GLFWNativeCalls.getWindowLostFocus() != 0)
{
ExitMouseMode();
}
m_inputState.mouseDeltaX = 0;
m_inputState.mouseDeltaY = 0;
m_inputState.scrollDeltaX = 0;
m_inputState.scrollDeltaY = 0;
unsafe
{
// key, scancode, action, mods
int keyStreamLen = 0;
int *keyStream = GLFWNativeCalls.getKeyStream(ref keyStreamLen);
for (int i = 0; i < keyStreamLen; i += 4)
{
int key = keyStream[i];
int scancode = keyStream[i + 1];
int action = keyStream[i + 2];
int mods = keyStream[i + 3];
if (key == GLFW_KEY_ESCAPE)
{
ExitMouseMode();
}
KeyCode translatedKey = TranslateKey(key, scancode, mods);
if (translatedKey == KeyCode.None)
{
continue;
}
if (action == GLFW_RELEASE)
{
m_inputState.KeyUp(translatedKey);
}
else if (action == GLFW_PRESS)
{
m_inputState.KeyDown(translatedKey);
}
}
// button, action, mods
int mouseButtonStreamLen = 0;
int *mouseButtonStream = GLFWNativeCalls.getMouseButtonStream(ref mouseButtonStreamLen);
for (int i = 0; i < mouseButtonStreamLen; i += 3)
{
int button = mouseButtonStream[i];
int action = mouseButtonStream[i + 1];
int mods = mouseButtonStream[i + 2];
if (action == GLFW_RELEASE)
{
m_inputState.MouseUp(button);
}
else if (action == GLFW_PRESS)
{
m_inputState.MouseDown(button);
EnterMouseMode();
}
}
int mouseScrollStreamLen = 0;
float *mouseScrollStream = GLFWNativeCalls.getMouseScrollStream(ref mouseScrollStreamLen);
for (int i = 0; i < mouseScrollStreamLen; i += 2)
{
float scrollX = mouseScrollStream[i];
float scrollY = mouseScrollStream[i + 1];
m_inputState.scrollDeltaX = scrollX;
m_inputState.scrollDeltaY = scrollY;
}
// position
// Ensure mouse movement isn't detected if cursor is meant to be locked
// but isn't (lost focus and never clicked back in the window).
int mousePosStreamLen = 0;
int *mousePosStream = GLFWNativeCalls.getMousePosStream(ref mousePosStreamLen);
if (mouseCursorModeSaved == mouseCursorModeActive)
{
for (int i = 0; i < mousePosStreamLen; i += 2)
{
int nextX = mousePosStream[i];
int nextY = mousePosStream[i + 1];
if (!mouseInitDelta)
{
m_inputState.mouseDeltaX += nextX - m_inputState.mouseX;
m_inputState.mouseDeltaY += nextY - m_inputState.mouseY;
}
m_inputState.mouseX = nextX;
m_inputState.mouseY = nextY;
mouseInitDelta = false;
}
}
if (mouseButtonStreamLen != 0 || mousePosStreamLen != 0 || mouseScrollStreamLen != 0)
{
m_inputState.hasMouse = true;
}
}
GLFWNativeCalls.unlockAndResetStreams();
}