From 81015b011baebc7fb606990024e07c3b7e7164d5 Mon Sep 17 00:00:00 2001
From: Kazhnuz <antoine@sortilege.net>
Date: Sun, 16 Jun 2019 16:37:22 +0200
Subject: [PATCH] feat(examples): add a pause menu in plateformer example

---
 examples/gameplay/plateform/actors/player.lua |  6 +-
 examples/gameplay/plateform/assets/init.lua   |  8 +++
 examples/gameplay/plateform/init.lua          | 21 +++++--
 examples/gameplay/plateform/pause.lua         | 61 +++++++++++++++++++
 4 files changed, 90 insertions(+), 6 deletions(-)
 create mode 100644 examples/gameplay/plateform/pause.lua

diff --git a/examples/gameplay/plateform/actors/player.lua b/examples/gameplay/plateform/actors/player.lua
index 2f18947..add912c 100644
--- a/examples/gameplay/plateform/actors/player.lua
+++ b/examples/gameplay/plateform/actors/player.lua
@@ -25,8 +25,10 @@ function Player:updateStart(dt)
   end
 
   if self.keys["start"].isPressed then
-    self.world:switchActivity()
-    self.assets:switchActivity()
+    --self.world:switchActivity()
+    --self.assets:switchActivity()
+    self.scene.menusystem:activate()
+    self.scene.menusystem:switchMenu("PauseMenu")
     self.scene:flushKeys()
   end
 
diff --git a/examples/gameplay/plateform/assets/init.lua b/examples/gameplay/plateform/assets/init.lua
index af6c93b..2d93581 100644
--- a/examples/gameplay/plateform/assets/init.lua
+++ b/examples/gameplay/plateform/assets/init.lua
@@ -3,5 +3,13 @@ return {
     {"player",    "examples/gameplay/plateform/assets/monkey_lad"},
     {"coin",      "examples/gameplay/plateform/assets/coin5"},
     {"sparkle",   "examples/gameplay/plateform/assets/sparkle"}
+  },
+  ["imagefonts"] = {
+    {"medium",    "examples/mainmenu/assets/medium"}
+  },
+  ["sfx"] = {
+    {"navigate",  "examples/mainmenu/assets/menu_move.mp3"},
+    {"confirm",   "examples/mainmenu/assets/menu_confirm.mp3"},
+    {"cancel",    "examples/mainmenu/assets/menu_error.mp3"},
   }
 }
diff --git a/examples/gameplay/plateform/init.lua b/examples/gameplay/plateform/init.lua
index bf59362..d8f0381 100644
--- a/examples/gameplay/plateform/init.lua
+++ b/examples/gameplay/plateform/init.lua
@@ -25,6 +25,7 @@ local Scene = require "gamecore.modules.scenes"
 local Plateformer = Scene:extend()
 
 local World = require "gamecore.modules.world.world2D"
+local Pause = require "examples.gameplay.plateform.pause"
 
 function Plateformer:new()
   Plateformer.super.new(self)
@@ -35,20 +36,32 @@ function Plateformer:new()
 
   World(self, folder .. ".actors", "examples/gameplay/plateform/assets/platformer.lua")
 
+  Pause(self)
+  self.menusystem:deactivate()
+  self.menusystem:lockWorldWhenActive(true)
+  self.menusystem:lockAssetsWhenActive(true)
+
   self.world:loadMap()
 end
 
+function Plateformer:restart()
+  self.menusystem:deactivate()
+  collectgarbage()
+  self.world:reset()
+end
+
 function Plateformer:update(dt)
-  if (self.world.isActive == false) and self.sources[1].keys["start"].isPressed then
-    self.world:switchActivity()
-    self.assets:switchActivity()
+  if (self.menusystem.isActive == true) and self.sources[1].keys["start"].isPressed then
+    self.menusystem:deactivate()
   end
 end
 
 function Plateformer:draw()
   if (self.world.isActive == false) then
     local w, h = core.screen:getDimensions()
-    love.graphics.printf("PAUSE", 0, h/2 - 16, w, "center")
+    love.graphics.setColor(1, 1, 0, 1)
+    love.graphics.printf("PAUSE", 0,  24*3, w, "center")
+    utils.graphics.resetColor()
   end
 end
 
diff --git a/examples/gameplay/plateform/pause.lua b/examples/gameplay/plateform/pause.lua
new file mode 100644
index 0000000..1ac3bac
--- /dev/null
+++ b/examples/gameplay/plateform/pause.lua
@@ -0,0 +1,61 @@
+local ListMenu  = require "gamecore.modules.menusystem.listbox"
+local Widget    = require "gamecore.modules.menusystem.widgets"
+
+local PauseMenu = ListMenu:extend()
+
+local ResumeWidget  = Widget.Text:extend()
+local RestartWidget = Widget.Text:extend()
+local ExitWidget    = Widget.Text:extend()
+
+function PauseMenu:new(scene)
+  self.scene = scene
+  local screenHeight, screenWidth = core.screen:getDimensions()
+  local w, h = 424/4, 240 - 48*4
+  local x, y = 3*w/2, 24*4
+  PauseMenu.super.new(self, scene.menusystem, "PauseMenu", x, y, w, h, 3)
+
+  ResumeWidget(self)
+  RestartWidget(self)
+  ExitWidget(self)
+end
+
+-- WIDGETS
+-- All widgets used by the pause menu
+
+function ResumeWidget:new(menu)
+  self.scene = menu.scene
+  local font        = self.scene.assets.fonts["medium"]
+  local label = "resume"
+  ResumeWidget.super.new(self, menu, font, label)
+end
+
+function ResumeWidget:action()
+  self.scene.assets:playSFX(self.sfx)
+  self.scene.menusystem:deactivate()
+end
+
+function RestartWidget:new(menu)
+  self.scene = menu.scene
+  local font        = self.scene.assets.fonts["medium"]
+  local label = "restart"
+  RestartWidget.super.new(self, menu, font, label)
+end
+
+function RestartWidget:action()
+  self.scene.assets:playSFX(self.sfx)
+  self.scene:restart()
+end
+
+function ExitWidget:new(menu)
+  self.scene = menu.scene
+  local font        = self.scene.assets.fonts["medium"]
+  local label = "exit"
+  ExitWidget.super.new(self, menu, font, label)
+end
+
+function ExitWidget:action()
+  self.scene.assets:playSFX(self.sfx)
+  core.scenemanager:setStoredScene("mainmenu")
+end
+
+return PauseMenu