UIElement:is_mouse_inside

Returns whether the mouse target is an element inside this one (or itself).

The data returned by this function is updated at the start of each update_tree call.

Usage

ui_element:is_mouse_inside()

Returns

Name	Type	Description
inside	boolean	True if the current mouse target is a descendent of this element, false otherwise.

Examples

This example defines a scene which constantly prints whether the mouse is inside a list of images:

local MyScene = Class("MyScene", crystal.Scene);

MyScene.init = function(self)
  self.list = crystal.VerticalList:new();
  self.sword = self.list:add_child(crystal.Image:new(crystal.assets.get("assets/sword.png")));
  self.shield = self.list:add_child(crystal.Image:new(crystal.assets.get("assets/shield.png")));
end

MyScene.update = function(self, dt)
  self.list:update_tree(dt);
  print(self.list:is_mouse_inside());
end

MyScene.draw = function(self)
  self.list:draw_tree();
end

MyScene.mouse_moved = function(self, x, y, dx, dy, is_touch)
  self.list:update_mouse_target();
end