.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+    "Lua.diagnostics.disable": [
+        "lowercase-global"
+    ]
+}

def/Object.d.lua

@@ -1,24 +0,0 @@
----@diagnostic disable: undefined-field
----@meta
----@module 'classic'
-
----@class Object
-local Object = {}
-
----Create a new instance of the class.
----@return self
-function Object:new(...) end
-
----Call the super-class constructor.
----@param self Object
-function Object.super.new(self, ...) end
-
----Create a subclass.
----@return Object   # the new subclass (its metatable is set up)
-function Object:extend() end
-
----Mix-in a table of methods into the class.
----@param mixin table
-function Object:implement(mixin) end
-
-return Object

learns.code-workspace

@@ -10,15 +10,8 @@
 			"love.filesystem.load": "loadfile"
 		},
 		"Lua.diagnostics.globals": ["love"],
-		"Lua.workspace.library": [
-			"${3rd}/love2d/library",
-			"${3rd}/classic",
-			"${workspaceFolder}/def"
-		],
-		"Lua.workspace.checkThirdParty": true,
-		"Lua.diagnostics.disable": [
-        	"lowercase-global"
-    	]
+		"Lua.workspace.library": ["${3rd}/love2d/library"],
+		"Lua.workspace.checkThirdParty": true
 	},
 	"launch": {
 		"version": "0.2.0",

main.lua

@@ -1,26 +1,17 @@
--- debug
-if os.getenv("LOCAL_LUA_DEBUGGER_VSCODE") == "1" then
-    require("lldebugger").start()
-end
+-- debug --
+-- if os.getenv("LOCAL_LUA_DEBUGGER_VSCODE") == "1" then
+--     require("lldebugger").start()
+-- end
 
--- libraries
+-- libraries --
 Object = require 'lib/classic/classic'
 Baton = require 'lib/baton/baton'
 Timer = require 'lib/hump/timer'
 
--- objects
-Room = require 'obj/Room'
+-- objects --
+Healthbar = require 'obj/Healthbar'
 
 function love.load()
-    ---@type Room|nil
-    current_room = nil
-
-    -- load rooms
-    local room_files = {}
-    recursiveEnumerate('rooms', room_files)
-    requireFiles(room_files)
-
-    -- load input
     input = Baton.new {
         controls = {
             left = {'key:left', 'key:a'},
@@ -33,46 +24,16 @@ function love.load()
             move = {'left', 'right', 'up', 'down'}
         }
     }
+    timer = Timer()
+    health = Healthbar()
 end
 
 function love.update(dt)
     input:update(dt)
-    if current_room then current_room:update(dt) end
+    timer:update(dt)
+    health:update(dt)
 end
 
 function love.draw()
-    if current_room then current_room:draw() end
-end
-
----Enumerates files in a folder and inserts them to a provided table.
----@param folder string path to folder to scan
----@param file_list table table to be inserted to
-function recursiveEnumerate(folder, file_list)
-    local items = love.filesystem.getDirectoryItems(folder)
-    for _, item in ipairs(items) do
-        local file = folder .. '/' .. item
----@diagnostic disable-next-line: undefined-field
-        if love.filesystem.isFile(file) then
-            table.insert(file_list, file)
----@diagnostic disable-next-line: undefined-field
-        elseif love.filesystem.isDirectory(file) then
-            recursiveEnumerate(file, file_list)
-        end
-    end
-end
-
----Load files table as lua modules.
----@param files table table containing files to be loaded
-function requireFiles(files)
-    for _, file in ipairs(files) do
-        local file = file:sub(1, -5)
-        require(file)
-    end
-end
-
----Go to a specific room.
----@param room_type string the name of the room as registered
----@param ... any arguments passed to the room constructor
-function gotoRoom(room_type, ...)
-    current_room = _G[room_type](...)
+    health:draw()
 end

obj/Healthbar.lua

@@ -0,0 +1,41 @@
+local Healthbar = Object:extend()
+
+function Healthbar:new(x, y, hp)
+    self.x = x or 100
+    self.y = y or 100
+    self.hp = hp or 100
+    self.max_width = 200
+    self.qwidth = (self.hp / 100) * self.max_width
+    self.lwidth = self.qwidth
+end
+
+function Healthbar:decrease(amount)
+    if self.hp ~= 0 then
+        if fg then timer:cancel(fg) end
+        if bg then timer:cancel(bg) end
+        if self.hp - amount <= 0 then
+            self.hp = 0
+        else
+            self.hp = self.hp - amount
+        end
+        local target_width = self.max_width * (self.hp / 100)
+        fg = timer:tween(0.3, self, {qwidth = target_width}, 'in-out-cubic')
+        bg = timer:tween(0.6, self, {lwidth = target_width}, 'in-out-cubic')
+    end
+end
+
+function Healthbar:update(dt)
+    if input:pressed('right') then self:decrease(20) end
+end
+
+function Healthbar:draw()
+    -- trailing hp
+    love.graphics.setColor(1, 0.5, 0.5)
+    love.graphics.rectangle("fill", self.x, self.y, self.lwidth, 20)
+
+    -- healthbar
+    love.graphics.setColor(1, 0.2, 0.2)
+    love.graphics.rectangle("fill", self.x, self.y, self.qwidth, 20)
+end
+
+return Healthbar

obj/Room.lua

@@ -1,16 +0,0 @@
----@module 'obj/Room'
-
----@class Room:Object
-local Room = Object:extend()
-
----Instantiates room.
-function Room:new() end
-
----Updates room (see [love.update()](lua://love.update))
----@param dt number delta time
-function Room:update(dt) end
-
----Draws graphics (see [love.draw()](lua://love.draw))
-function Room:draw() end
-
-return Room