First dirty commit of old code

druid/components/counter.lua

@@ -0,0 +1,67 @@
+local M = {}
+
+local text_field = require "modules.ui.components.text_field"
+
+local FRAMES = 60
+
+--- Bounce text field
+M.bounce = text_field.bounce
+
+--- Set text to text field
+-- @param set_to - set value to text field
+M.set_to = text_field.set_to
+
+--- Set color
+-- @param color
+M.set_color = text_field.set_color
+
+--- Set scale
+-- @param scale
+M.set_scale = text_field.set_scale
+
+--- Called when layout updated (rotate for example)
+function M.on_layout_updated(instance)
+  text_field.on_layout_updated(instance)
+  if instance.last_value then
+    text_field.set_to(instance, instance.last_value)
+  end
+end
+
+--- Animate counter
+-- @param set_to - set value to text field
+function M.animate_to(instance, set_to, frames)
+  if set_to == instance.last_value then
+    text_field.set_to(instance, set_to)
+  elseif not instance.is_animate then
+    frames = frames or FRAMES
+    instance.end_anim_value = set_to
+    local diff = set_to - instance.last_value
+    instance.anim_step = math.floor((set_to - instance.last_value) / frames)
+    if diff ~= 0 and instance.anim_step == 0 then
+      instance.anim_step = diff > 0 and 1 or - 1
+    end
+    instance.is_animate = true
+  else
+    instance.end_anim_value = set_to
+  end
+end
+
+--- Called when update
+-- @param dt - delta time
+function M.on_updated(instance, dt)
+  if instance.is_animate then
+    instance.last_value = instance.last_value + instance.anim_step
+    text_field.set_to(instance, instance.last_value)
+    if not instance.is_in_bounce then
+      instance.is_in_bounce = true
+      text_field.bounce(instance, function() instance.is_in_bounce = false end)
+    end
+    if instance.anim_step > 0 and instance.last_value >= instance.end_anim_value or
+    instance.anim_step < 0 and instance.last_value <= instance.end_anim_value then
+      instance.is_animate = false
+      text_field.set_to(instance, instance.end_anim_value)
+    end
+  end
+end
+
+return M