public void MouseMove(int x, int y)
{
// If our left mouse button is down, we can apply dragging
// processing on our focused scene object.
if (this.MouseLeftDown && this._curFocus != null)
{
this._curFocus.Drag(x, y);
}
// Make sure that we actually initialized the scene system.
if (this._UIObject != null)
{
// Make sure that we actually have scene objects in our current state.
if (this._UIObject[(int)Game.State] != null)
{
// Loop through all possible values for the ZOrder.
for (int z = ZOrder.GetHighZ(); z >= 0; z--)
{
// Loop through every scene object we have in our current state.
foreach (var obj in this._UIObject[(int)Game.State])
{
obj.HasMouse = false;
// Does the object's ZIndex match the ZOrder?
if (obj.Z == z)
{
// Is the object visible?
if (obj.Visible)
{
// Did we move our mouse within the area of the scene object?
if (x >= obj.Left && x <= obj.Left + obj.Width)
{
if (y >= obj.Top && y <= obj.Top + obj.Height)
{
// We did. Invoke appropriate event-handling methods.
obj.MouseMove(x - obj.Left, y - obj.Top);
// We assume we have the object we moused over.
// Return so that we don't apply similar logic on scene objects that
// should not receive this processing.
return;
}
}
}
// This break will break out of the current loop through all the scene objects for a respective Z value.
// It ensures we don't waste time looking for another object that can't exist.
break;
}
}
}
}
}
}
public void MouseDown(string button, int x, int y)
{
// Set the states of the appropriate mouse button to pressed.
switch (button)
{
case "left":
this.MouseLeftDown = true;
break;
case "middle":
this.MouseMiddleDown = true;
break;
case "right":
this.MouseRightDown = true;
break;
}
// Make sure that the scene system has actually been initialized.
if (this._UIObject != null)
{
// Make sure that we actually have scene objects in our current state.
if (this._UIObject[(int)TowerDefense.State] != null)
{
// Loop through every possible ZOrder value.
for (int z = ZOrder.GetHighZ(); z >= 0; z--)
{
// Loop through all the scene objects in our current state.
foreach (var obj in this._UIObject[(int)TowerDefense.State])
{
// Does the ZIndex match the ZOrder?
if (obj.Z == z)
{
// Make sure that the object is visible.
if (obj.Visible)
{
// Did we click within the area of the scene object?
if (x >= obj.Left && x <= obj.Left + obj.Width)
{
if (y >= obj.Top && y <= obj.Top + obj.Height)
{
//If we had a previous scene object, let that object
// know that it no longer has the focus.
if (this._curFocus != null)
{
this._curFocus.HasFocus = false;
}
// Assign this scene object as our currently focused scene object and
// let it know that it has our focus.
this._curFocus = obj;
this._curFocus.HasFocus = true;
// Invoke the appropriate event handling methods.
this._curFocus.MouseDown(x - obj.Left, y - obj.Top);
this._curFocus.BeginDrag(x - obj.Left, y - obj.Top);
// We assume that we have the object we clicked on.
// Return so that we don't apply similar logic on scene objects that
// should not receive this processing.
return;
}
}
}
// This break will break out of the current loop through all the scene objects for a respective Z value.
// It ensures we don't waste time looking for another object that can't exist.
break;
}
}
}
}
}
}