From 3e9f16dfbdab813e92c35ca629be2ffe3d5e1818 Mon Sep 17 00:00:00 2001
From: fnicon <mybeddrom@gmail.com>
Date: Sun, 22 Mar 2026 23:42:13 +0900
Subject: [PATCH] Add countdown

---
 .../src/new/shared/components/animation.lua   | 61 +++++++++++++++++++
 .../new/world/race/components/checkpoint.lua  |  0
 .../new/world/race/components/countdown.lua   | 32 ++++++++++
 .../src/new/world/race/components/phase.lua   | 27 ++++++++
 game/love_src/src/new/world/race/init.lua     | 33 ++++++++++
 game/love_src/src/system/animation.lua        | 50 +++++++++++++++
 6 files changed, 203 insertions(+)
 create mode 100644 game/love_src/src/new/shared/components/animation.lua
 create mode 100644 game/love_src/src/new/world/race/components/checkpoint.lua
 create mode 100644 game/love_src/src/new/world/race/components/countdown.lua
 create mode 100644 game/love_src/src/new/world/race/components/phase.lua
 create mode 100644 game/love_src/src/system/animation.lua

diff --git a/game/love_src/src/new/shared/components/animation.lua b/game/love_src/src/new/shared/components/animation.lua
new file mode 100644
index 0000000..7fde508
--- /dev/null
+++ b/game/love_src/src/new/shared/components/animation.lua
@@ -0,0 +1,61 @@
+local vm = require"lib.vornmath"
+local uib = require"love_src.src.system.ui_behavior"
+local uir = require"love_src.src.system.ui_render"
+
+local sfx = require"love_src.wrapper.lappy.new.source".obj
+
+local anim_math = require("love_src.src.system.animation")
+
+local main_wrapper = require "love_src.wrapper.lappy.world"
+---@class wrappers.Concord.world : lappy.world
+local world = main_wrapper:extend()
+
+local reap = require("lib.reap")
+local BASE = reap.base_path(...)
+
+function world:new()
+  world.super.new(self, BASE, "animation")
+end
+
+local function default_trigger()
+end
+
+function world:load(e, data)
+  self.data = {}
+
+  self.data.run_time = data.run_time or 0
+  self.data.anim_direction = data.anim_direction or 1
+  self.data.fps = data.fps or 12
+  self.data.frames = data.frames or {}
+  self.data.current_frame = data.current_frame or 1
+  self.data.triggers = data.triggers or {}
+  self.data.next_trigger = data.next_trigger or 1
+
+  self.data.triggers_fn = data.triggers_fn or {}
+end
+
+function world:update(dt)
+  self.data.run_time = anim_math.update_time(
+    self.data.run_time, dt, self.data.anim_direction
+  )
+  local new_index = anim_math.update_fps_time(
+    self.data.run_time, self.data.fps
+  )
+  self.data.current_frame = anim_math.get_loop(
+    new_index,
+    #self.data.frames
+  )
+
+  if (anim_math.is_trigger(
+    self.data.triggers,
+    self.data.next_trigger,
+    self.data.current_frame
+  )) then
+    self.data.triggers_fn[self.data.current_frame]()
+    self.data.next_trigger = anim_math.get_loop(
+      self.data.next_trigger + 1, #self.data.triggers
+    )
+  end
+end
+
+return world
diff --git a/game/love_src/src/new/world/race/components/checkpoint.lua b/game/love_src/src/new/world/race/components/checkpoint.lua
new file mode 100644
index 0000000..e69de29
diff --git a/game/love_src/src/new/world/race/components/countdown.lua b/game/love_src/src/new/world/race/components/countdown.lua
new file mode 100644
index 0000000..ce1e3ad
--- /dev/null
+++ b/game/love_src/src/new/world/race/components/countdown.lua
@@ -0,0 +1,32 @@
+local vm = require"lib.vornmath"
+local uib = require"love_src.src.system.ui_behavior"
+local uir = require"love_src.src.system.ui_render"
+
+local main_wrapper = require "love_src.wrapper.lappy.world"
+---@class wrappers.Concord.world : lappy.world
+local world = main_wrapper:extend()
+
+local reap = require("lib.reap")
+local BASE = reap.base_path(...)
+
+function world:new()
+  world.super.new(self, BASE, "phase")
+end
+
+function world:load(entity, data)
+  self.data = data
+  self.e = entity
+end
+
+function world:update(dt)
+  self.data.label = self.e.components.animation.data.frames[self.e.components.animation.data.current_frame]
+end
+
+function world:ui_draw()
+  uir.draw_text(self.data.label,
+    self.data.pos[1], self.data.pos[2],
+    self.data.label_color
+  )
+end
+
+return world
diff --git a/game/love_src/src/new/world/race/components/phase.lua b/game/love_src/src/new/world/race/components/phase.lua
new file mode 100644
index 0000000..b1cfcbb
--- /dev/null
+++ b/game/love_src/src/new/world/race/components/phase.lua
@@ -0,0 +1,27 @@
+local vm = require"lib.vornmath"
+local uib = require"love_src.src.system.ui_behavior"
+local uir = require"love_src.src.system.ui_render"
+
+local main_wrapper = require "love_src.wrapper.lappy.world"
+---@class wrappers.Concord.world : lappy.world
+local world = main_wrapper:extend()
+
+local reap = require("lib.reap")
+local BASE = reap.base_path(...)
+
+function world:new()
+  world.super.new(self, BASE, "phase")
+end
+
+function world:load(entity, data)
+  self.data = data
+end
+
+function world:ui_draw()
+  uir.draw_text(self.data.label,
+    self.data.pos[1], self.data.pos[2],
+    self.data.label_color
+  )
+end
+
+return world
diff --git a/game/love_src/src/new/world/race/init.lua b/game/love_src/src/new/world/race/init.lua
index fc463fa..06a5e9e 100644
--- a/game/love_src/src/new/world/race/init.lua
+++ b/game/love_src/src/new/world/race/init.lua
@@ -14,6 +14,8 @@ local default = {
   }
 }
 
+local lw, lh = love.graphics.getDimensions()
+
 local entities_default = {
   {
     components = {
@@ -62,6 +64,37 @@ local entities_default = {
         drag =  vm.vec2(0.1, 0.0)
       }
     }
+  },
+  {
+    type = "countdown",
+    name = "321go",
+    components = {
+      countdown = require("love_src.src.new.world.race.components.countdown"),
+      animation = require("love_src.src.new.shared.components.animation"),
+    },
+    data = {
+      countdown = {
+        label = "",
+        pos = vm.vec2(lw/2, lh/2),
+        label_color = {1, 0, 1}
+      },
+      animation = {
+        frames = {
+          "3",
+          "2",
+          "1",
+          "go",
+          ""
+        },
+        fps = 1,
+        triggers = {4},
+        triggers_fn = {
+          [4] = function ()
+            print("GO")
+          end
+        }
+      }
+    }
   }
 }
 
diff --git a/game/love_src/src/system/animation.lua b/game/love_src/src/system/animation.lua
new file mode 100644
index 0000000..f6739a4
--- /dev/null
+++ b/game/love_src/src/system/animation.lua
@@ -0,0 +1,50 @@
+local floor = math.floor
+
+--- system time
+---@param time number
+---@param delta number
+---@param indicator number 1 | -1 forward/backward
+---@return number
+local function update_time(time, delta, indicator)
+  return time + (delta * indicator)
+end
+
+--- loop index from min to max
+---@param index number
+---@param _max number
+---@param _min number?
+---@return number
+local function get_loop(index, _max, _min)
+  _min = _min or 0
+  local md = _min + index % (_max - _min)
+  if (md == _min) then
+    return _max
+  else
+    return _min + index % (_max - _min)
+  end
+end
+
+---comment
+---@param time number
+---@param fps number
+---@return integer
+local function update_fps_time(time, fps)
+  -- floor time to 1. check x fps per second
+  return floor(time / (1 / fps))
+end
+
+---check if it's time to trigger something
+---@param trigger_frames any[]
+---@param trigger_id number | string
+---@param frame_id number id to compare
+---@return boolean
+local function is_trigger(trigger_frames, trigger_id, frame_id)
+  return (trigger_frames[trigger_id] == frame_id)
+end
+
+return {
+  update_time = update_time,
+  update_fps_time = update_fps_time,
+  get_loop = get_loop,
+  is_trigger = is_trigger
+}