DrawSystem:update_drawables

Runs update logic for drawables that have any. This involves:

Updating the current keyframe of all AnimatedSprite components.
Updating the script and layout of all WorldWidget components.

If you have unrelated scripts joining on threads managed by these components (such as threads returned by AnimatedSprite:play_animation), they may resume execution during this call.

Usage

draw_system:update_drawables(delta_time)

Arguments

Name	Type	Description
`delta_time`	`number`	Time since previous update, in seconds.

Examples

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

MyScene.init = function(self)
  self.ecs = crystal.ECS:new();
  self.draw_system = self.ecs:add_system(crystal.DrawSystem);
end

MyScene.update = function(self, delta_time)
  self.draw_system:update_drawables(delta_time);
end

MyScene.draw = function(self)
  self.draw_system:draw_entities();
end