Interaction

Interaction with objects is handled in the following way:

• when an object is in range, it is selected

• when an object is no longer in range, it is deselected

• when an object is selected and LMB is pressed, the object is activated

• when an object is selected and RMB is pressed, the object is activated alternatively

Every change of state emits a signal:

goat_interaction.object_selected (object_name, point)
goat_interaction.object_deselected (object_name)
goat_interaction.object_activated (object_name, point)
goat_interaction.object_activated_alternatively (object_name, point)

object_name represents the unique name associated with an interactive object that is currently being selected/deselected/activated (either an item or a screen). Additionally, point stores a global 3D location where an interaction took place (that usually doesn’t matter for items, but is quite important for screens).

To make things easier, currently selected objects and their corresponding points are stored globally and can be accessed like this:

goat_interaction.get_selected_object(category)
goat_interaction.get_selected_point(category)

category represents the type of interaction object. Currently, only two values are used: environment and inventory. Each category can store only one item and one point at the same time. That means that if a new object is selected, the previous one will be deselected first.

goat_inventory contains methods for selecting/deselecting/activating interactive objects, but they are used internally by GOAT and usually don’t need to be used directly by game developers.