finish animation

game/animation.lua

@@ -10,8 +10,9 @@ local _M = {}
 
 ---@param tilesheet Texture
 ---@param frames table<Frame>
-function _M.CreateAnimation(tilesheet, frames)
-    local o = {tilesheet = tilesheet, frames = frames, index = 1, counter = 0, isPlaying = false}
+---@param onEndCallback function
+function _M.CreateAnimation(tilesheet, frames, onEndCallback)
+    local o = {tilesheet = tilesheet, frames = frames, index = 1, counter = 0, isPlaying = false, onEndCallback = onEndCallback}
     setmetatable(o, {__index = _M})
     return o
 end
@@ -47,7 +48,7 @@ end
 
 ---@param self Animation
 function _M.Rewind(self)
-    self.index = 0
+    self.index = 1
     self.counter = 0
 end
 
@@ -63,14 +64,15 @@ function _M.Update(self)
     end
     if self.index > #self.frames then
         self:Pause()
+        if self.onEndCallback then
+            self.onEndCallback(self)
+        end
+        return
     end
 
     self.counter = self.counter + hazel.Time.GetElapseTime()
     ---@type Frame
     local curFrame = self.frames[self.index]
-    if not curFrame then
-        return
-    end
     if self.counter >= curFrame.time then
         self.counter = self.counter - curFrame.time
         self.index = self.index + 1

game/content.lua

@@ -37,4 +37,24 @@ _M.MonsterBirthNum = 0
 
 _M.MonsterBirthCountDown = 0
 
+_M.Animations = {
+    ---@type Animation
+    PlayerWalkDown = nil,
+    ---@type Animation
+    PlayerWalkUp = nil,
+    ---@type Animation
+    PlayerWalkRight = nil,
+    ---@type Animation
+    PlayerWalkLeft = nil,
+
+    ---@type Animation
+    EnemyWalkDown = nil,
+    ---@type Animation
+    EnemyWalkUp = nil,
+    ---@type Animation
+    EnemyWalkRight = nil,
+    ---@type Animation
+    EnemyWalkLeft = nil,
+}
+
 return _M

game/main.lua

@@ -4,6 +4,7 @@ local constants = require "constants"
 local content = require "content"
 local vmath = require "vmath"
 local timer = require "timer"
+local animation = require "animation"
 
 local function drawCurosr()
     hazel.Renderer.SetDrawColor(1, 0, 0, 1)
@@ -171,6 +172,11 @@ local function initGame()
     content.PlayerEntity = ECS.CreatePlayer(hazel.CreatePos(constants.TileSize * 16, constants.TileSize * 13))
     content.MonsterBirthNum = constants.MonsterBirthInitNum
     content.GameState = content.GameStateEnum.WaitStart
+    ---@param v Animation
+    for _, v in pairs(content.Animations) do
+        v:Rewind()
+        v:Stop()
+    end
 end
 
 local function generateMonster()
@@ -208,6 +214,19 @@ end
 ---@type Timer
 local showLicenseTimer = nil
 
+---@return Animation
+---@param row number
+---@param time number
+local function createAnimation(row, time)
+    local frame = {}
+    for i = 0, 2 do
+        table.insert(frame, {row = row, col = i, time = time})
+    end
+    return animation.CreateAnimation(content.Tilesheet, frame, function(self)
+        self:Rewind()
+    end)
+end
+
 function GameStart()
     hazel.SetWindowIcon("resources/icon.png")
     content.Texture = hazel.LoadTexture("resources/tilesheet.png")
@@ -220,9 +239,18 @@ function GameStart()
 
     content.GameState = content.GameStateEnum.ShowLogo
 
+    content.Animations.PlayerWalkDown = createAnimation(0, 0.1)
+    content.Animations.PlayerWalkUp = createAnimation(1, 0.1)
+    content.Animations.PlayerWalkRight = createAnimation(2, 0.1)
+    content.Animations.PlayerWalkLeft = createAnimation(3, 0.1)
+
+    content.Animations.EnemyWalkDown = createAnimation(5, 0.1)
+    content.Animations.EnemyWalkUp = createAnimation(6, 0.1)
+    content.Animations.EnemyWalkRight = createAnimation(7, 0.1)
+    content.Animations.EnemyWalkLeft = createAnimation(8, 0.1)
+
     showLicenseTimer = timer.CreateTimer(constants.ShowLicenseTime, 1, function()
         content.GameState = content.GameStateEnum.WaitStart
-        showLicenseTimer = nil
     end)
 
     hazel.HideCursor()