epervier-old/examples/menus/options/init.lua

-- scenes/options :: a basic example of how to handle gamecore options in a menu

--[[
  Copyright © 2019 Kazhnuz

  Permission is hereby granted, free of charge, to any person obtaining a copy of
  this software and associated documentation files (the "Software"), to deal in
  the Software without restriction, including without limitation the rights to
  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
  the Software, and to permit persons to whom the Software is furnished to do so,
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  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
  FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
]]

local Scene     = require "gamecore.modules.scenes"
local OptionsMenu  = Scene:extend()

local ListBox   = require "gamecore.modules.menusystem.listbox"
local Widget    = require "gamecore.modules.menusystem.widgets"

local DoubleTextWidget = Widget.Text:extend()

local SubMenuWidget = DoubleTextWidget:extend()
local SceneWidget   = Widget.Text:extend()
local ExitWidget    = Widget.Text:extend()

function OptionsMenu:new()
  OptionsMenu.super.new(self)
  self.assets:addImageFont("medium", "examples/mainmenu/assets/medium")

  self:addMenu("main", true)
  self:addSubMenu("basic", "Basic Tests")
  self:addScene("basic", examples.Test, "Basic Test 1")
  self:addScene("basic", examples.Test2, "Basic Test 2")
  self:addScene("basic", examples.TestMenu, "Basic Test Menu")
  self:addSubMenu("menus", "Menus Tests")
  self:addScene("menus", examples.Inventory, "Inventory")
  self:addSubMenu("gameplay", "Games Examples")
  self:addScene("gameplay", examples.MovePlayer, "Movable Player")

  ExitWidget(self, "main")
  self.menusystem:switchMenu("main")
end

-- MENU FUNCTION
-- Functions that serve the handling of menus

function OptionsMenu:addMenu(name, nobackbutton)
  local screenHeight, screenWidth = core.screen:getDimensions()
  local w, h = 424/2, 240 - 48
  local x, y = w / 2, 24
  ListBox(self.menusystem, name, x, y, w, h, 8)
end

function OptionsMenu:addSubMenu(name, fullname)
  self:addMenu(name)
  SubMenuWidget(self, "main", name, fullname)
  SubMenuWidget(self, name, "main", "Back", 1, "<")
end

function OptionsMenu:addScene(submenu, scene, fullname)
  SceneWidget(self, submenu, scene, fullname)
end

function OptionsMenu:draw()
  love.graphics.setColor(.3,  .1, .4, 1)
  love.graphics.rectangle("fill", 0, 0, 424, 240)
end

-- WIDGETS
-- Widgets used by menus

-- DoubleText widget : a two-side text widget

function DoubleTextWidget:new(menu, font, label1, label2)
  DoubleTextWidget.super.new(self, menu, font, label1)
  self.label2 = label2 or ""
end

function DoubleTextWidget:drawCanvas()
  local w, h
  w = math.floor(self.width)
  h = math.floor(self.height / 2) - (self.font:getHeight() / 2)
  self.font:draw(self.label, 4, h, -1, "left")
  self.font:draw(self.label2, w-4, h, -1, "right")
end

-- Submenu widget :: go to a submenu

function SubMenuWidget:new(scene, menu, newmenu, fullname, order, label2)
  self.scene = scene
  local widgetmenu  = self.scene.menusystem.menus[menu]
  local font        = self.scene.assets.fonts["medium"]
  local label2      = label2 or ">"
  self.newmenu      = newmenu
  SubMenuWidget.super.new(self, widgetmenu, font, fullname, label2)
  self.order = order or 0
end

function SubMenuWidget:action()
  self.scene.menusystem:switchMenu(self.newmenu)
end

-- Scene widget :: switch scene

function SceneWidget:new(scene, menu, newscene, fullname)
  self.scene = scene
  local widgetmenu  = self.scene.menusystem.menus[menu]
  local font        = self.scene.assets.fonts["medium"]
  self.newscene     = newscene
  SceneWidget.super.new(self, widgetmenu, font, fullname)
end

function SceneWidget:action()
  core.scenemanager:storeCurrentScene("mainmenu")
  self.newscene()
end

-- Exit Widget : exit the examples

function ExitWidget:new(scene, menu)
  self.scene = scene
  local widgetmenu  = self.scene.menusystem.menus[menu]
  local font        = self.scene.assets.fonts["medium"]
  SceneWidget.super.new(self, widgetmenu, font, "Exit")
end

function ExitWidget:action()
  core.scenemanager:setStoredScene("mainmenu")
end

return OptionsMenu