Hello.
For my 2d top-down tile map project i need to change object z coordinate (index) for depth simulation. For that purpose i use Y coordinate of each object on the map and map it to the range from 0 to 1. It works as expected so far.
The problem is - i can not update Z coordinate for objects currently updated by go.animate. This lead to an issue where animated object will overlap other objects on it’s movement path until animation is complete.
For example if i move an to some destination point
go.animate(
go.get_id(),
CONSTANTS.PROPS.POSITION, go.PLAYBACK_ONCE_FORWARD,
destination, go.EASING_LINEAR, duration, 0,
function (self)
idle(self)
end
)
Then updating it’s z index during update will not work
function update(self, dt)
local position = go.get_position()
position = map_helper.z_index_for_y(position.y)
go.set_position(position)
end
It looks like go.animate makes changes after game object update call and overrides position property.
What i looking for is some sort of callback for go.animate or post_update where i can modify animation result.
I can move objects manually inside update callback obviously, but this will introduce complexity since i really do not want to loose ability to use easing functions and handle precision issues manually.