//////// OPTIONAL ////////
// Processs any SDL2 events manually if required.
// Return false to not allow the default event handler to process it.
public bool MyEventHandler(SDL2Window _self, SDL.SDL_Event e)
{
// We're replacing OnEvent and thus call ImGuiSDL2CSHelper.OnEvent manually.
if (!ImGuiSDL2CSHelper.HandleEvent(e, ref g_MouseWheel, g_MousePressed))
{
return(false);
}
// Any custom event handling can happen here.
return(true);
}
private bool MyEventHandler(SDL2Window window, SDL.SDL_Event e)
{
int mouseX;
int mouseY;
SDL.SDL_GetMouseState(out mouseX, out mouseY);
if (!ImGuiSDL2CSHelper.HandleEvent(e, ref g_MouseWheel, g_MousePressed))
{
return(false);
}
if (e.type == SDL.SDL_EventType.SDL_MOUSEBUTTONDOWN && e.button.button == 1 & !ImGui.GetIO().WantCaptureMouse)
{
_state.Camera.IsGrabbingMap = true;
_state.Camera.MouseFrameIncrementX = e.motion.x;
_state.Camera.MouseFrameIncrementY = e.motion.y;
mouseDownX = mouseX;
mouseDownY = mouseY;
}
if (e.type == SDL.SDL_EventType.SDL_MOUSEBUTTONUP && e.button.button == 1)
{
_state.Camera.IsGrabbingMap = false;
if (mouseDownX == mouseX && mouseDownY == mouseY) //click on map.
{
_state.MapClicked(_state.Camera.WorldCoordinate(mouseX, mouseY), MouseButtons.Primary); //sdl and imgu use different numbers for buttons.
}
}
if (e.type == SDL.SDL_EventType.SDL_MOUSEBUTTONDOWN && e.button.button == 3 & !ImGui.GetIO().WantCaptureMouse)
{
mouseDownAltX = mouseX;
mouseDownAltY = mouseY;
}
if (e.type == SDL.SDL_EventType.SDL_MOUSEBUTTONUP && e.button.button == 3)
{
_state.Camera.IsGrabbingMap = false;
if (mouseDownAltX == mouseX && mouseDownAltY == mouseY) //click on map.
{
_state.MapClicked(_state.Camera.WorldCoordinate(mouseX, mouseY), MouseButtons.Alt); //sdl and imgu use different numbers for buttons.
}
}
if (_state.Camera.IsGrabbingMap)
{
int deltaX = _state.Camera.MouseFrameIncrementX - e.motion.x;
int deltaY = _state.Camera.MouseFrameIncrementY - e.motion.y;
_state.Camera.WorldOffset(deltaX, deltaY);
_state.Camera.MouseFrameIncrementX = e.motion.x;
_state.Camera.MouseFrameIncrementY = e.motion.y;
}
if (e.type == SDL.SDL_EventType.SDL_KEYUP)
{
if (e.key.keysym.sym == SDL.SDL_Keycode.SDLK_ESCAPE)
{
MainMenuItems mainMenu = MainMenuItems.GetInstance();
mainMenu.IsActive = true;
}
}
if (e.type == SDL.SDL_EventType.SDL_MOUSEWHEEL)
{
if (e.wheel.y > 0)
{
_state.Camera.ZoomIn(mouseX, mouseY);
}
else if (e.wheel.y < 0)
{
_state.Camera.ZoomOut(mouseX, mouseY);
}
}
return(true);
}