added pause and music

Game/GameKeyPressed.lua

@@ -1,14 +1,21 @@
 function GameKeyPressed(key)
+
 	if key == "escape" then
-		_G.GAMESTATE = "MENU"
+        musicBattle:setVolume(0)
-		print("STATE CHANEGD: MENU!")
+        musicPause:setVolume(0.5)
+
+		_G.GAMESTATE = "PAUSE"
+		print("STATE CHANEGD: PAUSED!")
+		_G.PAUSED = true
 	end
 
-	if key == "b" then
+	if key == "b" and not _G.PAUSED then
 		DebugFlag = not DebugFlag
 	end
 
-	if key == "r" then
+	--[[
+	if key == "r" and not _G.PAUSED then
 		love.load()
 	end
+	]]--
 end

Menu/DrawMenu.lua

@@ -19,7 +19,6 @@ local function button(x,y, w, h, text, selected)
     -- Place text inside the rectangle
 	love.graphics.setFont(MenuFont)
     love.graphics.print(text, textX, textY)
-
 end
 
 local function title()
@@ -40,4 +39,6 @@ function DrawMenu()
     button(100, 350, bwidth, bheight, "???",  MENU_POS == 1 and true or false)
     button(100, 500, bwidth, bheight, "???",  MENU_POS == 2 and true or false)
     button(100, 650, bwidth, bheight, "Quit",  MENU_POS == 3 and true or false)
+
+    love.graphics.setColor(255,255,255) -- reset colours
 end

Menu/MenuKeyPressed.lua

@@ -8,6 +8,7 @@ function MenuKeyPressed(key)
 			--Change state to GAME!
 			_G.GAMESTATE = "GAME"
 			print("STATE CHANEGD: GAME!")
+			musicMenu:stop()
 
 		elseif MENU_POS == 1 then
 			print("STATE CHANEGD: DUNNO!")

Pause/DrawPause.lua

@@ -0,0 +1,45 @@
+local function button(x,y, w, h, text, selected)
+    --x,y is the top left corner of the button
+    local rounding = 30 -- used for rounding the buttons
+
+    if not selected then    
+        love.graphics.setColor(love.math.colorFromBytes(41,134,204))
+    elseif selected then
+        love.graphics.setColor(love.math.colorFromBytes(244,67,54))
+    end
+    -- Draw rectangle
+    love.graphics.rectangle("fill", x, y, w, h, rounding, rounding)
+
+    -- Get width and height of text
+    local tw = MenuFont:getWidth(text)
+    local th = MenuFont:getHeight(text)
+    -- Calculate position to center the text
+    local textX = x + (w - tw) / 2
+    local textY = y + (h - th) / 2
+    -- Place text inside the rectangle
+	love.graphics.setFont(MenuFont)
+    love.graphics.setColor(1,1,1) -- reset colours
+    love.graphics.print(text, textX, textY)
+end
+
+
+function DrawPause()
+    local opacity = 0.3
+	local height = love.graphics.getHeight()
+	local width = love.graphics.getWidth()
+    local bwidth, bheight = 300, 140
+	love.graphics.setFont(GameFont)
+
+    DrawGame() --Draw a single frame of the game
+    love.graphics.setColor(0.1,0.1,0.1, opacity) --overlay opaque img
+    love.graphics.rectangle("fill", 0, 0, width, height)
+
+    love.graphics.setColor(1,1,1)
+    love.graphics.print("PAUSED", 100,100)
+    --love.graphics.print("" .. PAUSE_POS, 200,200)
+
+    button(100, 200, bwidth, bheight, "Return",  PAUSE_POS == 0 and true or false)
+    button(100, 350, bwidth, bheight, "Menu",  PAUSE_POS == 1 and true or false)
+    button(100, 500, bwidth, bheight, "Quit",  PAUSE_POS == 2 and true or false)
+    love.graphics.setColor(255,255,255) -- reset colours
+end

Pause/PauseKeyPressed.lua

@@ -0,0 +1,44 @@
+function PauseKeyPressed(key)
+    if key == 'return' then
+        musicBattle:setVolume(0.5)
+        musicPause:setVolume(0)
+        -- 0 Return to game
+        -- 1 Quit
+        if PAUSE_POS == 0 then
+            -- unpause the game 
+            _G.GAMESTATE = "GAME"
+            print("STATE CHANEGD: GAME!")
+            _G.PAUSED = false
+			musicBattle:setVolume(0.5)
+			musicPause:setVolume(0)
+
+        elseif PAUSE_POS == 1 then
+            _G.GAMESTATE = "MENU"
+            print("STATE CHANEGD: MENU!")
+            _G.PAUSED = false
+            musicPause:stop()
+            musicBattle:stop()
+
+        elseif PAUSE_POS == 2 then
+			love.event.quit()
+        end
+        
+    end
+
+
+	if love.keyboard.isDown("up") then
+		if _G.PAUSE_POS == 0 then
+			_G.PAUSE_POS = 0
+		else
+			_G.PAUSE_POS = _G.PAUSE_POS - 1
+		end
+	end
+
+	if love.keyboard.isDown("down") then
+		if _G.PAUSE_POS >= _G.PAUSE_MAX then
+			_G.PAUSE_POS = _G.PAUSE_MAX
+		else
+			_G.PAUSE_POS = _G.PAUSE_POS + 1
+		end
+	end
+end

Pause/UpdatePause.lua

@@ -0,0 +1,2 @@
+function UpdatePause(dt)
+end

conf.lua

@@ -2,5 +2,5 @@
 function love.conf(t)
 	t.window.width = 1600
 	t.window.height = 960
-	t.window.title = "Game"
+	t.window.title = "Tanks-A-Lot"
 end

constants.lua

@@ -1,3 +1,8 @@
 GAMESTATE = "MENU"
+
 MENU_POS = 0
-MENU_MAX = 3
+MENU_MAX = 3 --0 play, 1 ?, 2 ?, 3 quit
+
+PAUSED = false
+PAUSE_POS = 0
+PAUSE_MAX = 2 -- 0 resume, 1 menu,  2 quit

libs/classic.lua

@@ -0,0 +1,68 @@
+--
+-- classic
+--
+-- Copyright (c) 2014, rxi
+--
+-- This module is free software; you can redistribute it and/or modify it under
+-- the terms of the MIT license. See LICENSE for details.
+--
+
+
+local Object = {}
+Object.__index = Object
+
+
+function Object:new()
+end
+
+
+function Object:extend()
+  local cls = {}
+  for k, v in pairs(self) do
+    if k:find("__") == 1 then
+      cls[k] = v
+    end
+  end
+  cls.__index = cls
+  cls.super = self
+  setmetatable(cls, self)
+  return cls
+end
+
+
+function Object:implement(...)
+  for _, cls in pairs({...}) do
+    for k, v in pairs(cls) do
+      if self[k] == nil and type(v) == "function" then
+        self[k] = v
+      end
+    end
+  end
+end
+
+
+function Object:is(T)
+  local mt = getmetatable(self)
+  while mt do
+    if mt == T then
+      return true
+    end
+    mt = getmetatable(mt)
+  end
+  return false
+end
+
+
+function Object:__tostring()
+  return "Object"
+end
+
+
+function Object:__call(...)
+  local obj = setmetatable({}, self)
+  obj:new(...)
+  return obj
+end
+
+
+return Object

main.lua

@@ -43,7 +43,7 @@ function love.run()
 end
 
 function love.load()
-	Object = require("classic")
+	Object = require("libs/classic")
 	require("player")
 	require("bullet")
 
@@ -52,12 +52,15 @@ function love.load()
 
 	require("Game/UpdateGame")
 	require("Menu/UpdateMenu")
+	require("Pause/UpdatePause")
 
 	require("Game/DrawGame")
 	require("Menu/DrawMenu")
+	require("Pause/DrawPause")
 
 	require("Game/GameKeyPressed")
 	require("Menu/MenuKeyPressed")
+	require("Pause/PauseKeyPressed")
 
 	require("mapsloader")
 
@@ -102,12 +105,28 @@ function love.load()
 	local playerSpeed = 12000
 	UserPlayer1 = Player(1, 1000, 100, HEALTH, "assets/player1.png", playerSpeed)
 	UserPlayer2 = Player(2, 200, 300, HEALTH, "assets/player2.png", playerSpeed)
+
+	-- Music streaming
+	musicMenu = love.audio.newSource("music/menu.mp3", "stream")
+	musicBattle = love.audio.newSource("music/battle.mp3", "stream")
+	musicStory = love.audio.newSource("music/story.mp3", "stream")
+
+	musicPause = musicBattle:clone()
+	musicPause:setFilter{
+		type = 'lowpass',
+		volume = 0.3,
+		highgain = 0.4,
+	}
+
 end
 
 function love.keypressed(key)
 	if _G.GAMESTATE == "MENU" then
 		MenuKeyPressed(key)
 	end
+	if _G.GAMESTATE == "PAUSE" then
+		PauseKeyPressed(key)
+	end
 	if _G.GAMESTATE == "GAME" then
 		GameKeyPressed(key)
 	end
@@ -117,9 +136,31 @@ end
 function love.update(dt)
 	if _G.GAMESTATE == "MENU" then
 		UpdateMenu(dt)
+		-- Handle music
+		if not musicMenu:isPlaying() then
+			musicMenu:setVolume(0.5)
+			love.audio.play(musicMenu)
+		end
+	end
+	if _G.GAMESTATE == "PAUSE" then
+		UpdatePause(dt)
+		-- Handle music
+		if not musicPause:isPlaying() then
+			--musicBattle:setVolume(0)
+			--musicPause:setVolume(0.5)
+			love.audio.play(musicBattle)
+			love.audio.play(musicPause)
+		end
 	end
 	if _G.GAMESTATE == "GAME" then
 		UpdateGame(dt)
+		-- Handle music
+		if not musicBattle:isPlaying() then
+			--musicBattle:setVolume(0.5)
+			--musicPause:setVolume(0)
+			love.audio.play(musicBattle)
+			love.audio.play(musicPause)
+		end
 	end
 end
 
@@ -127,6 +168,9 @@ function love.draw()
 	if _G.GAMESTATE == "MENU" then
 		DrawMenu()
 	end
+	if _G.GAMESTATE == "PAUSE" then
+		DrawPause()
+	end
 	if _G.GAMESTATE == "GAME" then
 		DrawGame()
 		if DebugFlag then