require("mobdebug").start()

system.setIdleTimer(false)
display.setStatusBar(display.HiddenStatusBar)
display.setDrawMode("forceRender")
system.activate("multitouch")

local physics = require("physics")
local widget = require("widget")

physics.setGravity(0, 32)
physics.start()

local ccx = display.contentCenterX
local ccy = display.contentCenterY

-- Camera
local camera = display.newGroup()

-- Character
local char = display.newGroup()
char.x = ccx
char.y = ccy
camera:insert(char)

local charBody = display.newRect(0, 25, 100, 200) -- Offset the head so physics dont become messed up
char:insert(charBody)

local charHead = display.newRect(0, -100, 50, 50)
charHead.fill = {0.5, 0.1, 0.1}
char:insert(charHead)

physics.addBody(char, {density = 0.5, friction = 0.2, bounce = 0})
char.isFixedRotation = true -- This is an internal flag so char does not rotate

-- Level
local levelData = {
	{x = ccx, y = ccy + 300, w = 5000, h = 100}, -- Floor
	{x = ccx + 200, y = ccy - 100, w = 200, h = 100}, -- Random block

	{x = ccx + 2500, y = ccy, w = 200, h = 5000}, -- Right wall
	{x = ccx - 2500, y = ccy, w = 200, h = 5000}, -- Left wall
}

local level = display.newGroup() -- All level objects will be inserted to this group
camera:insert(level)

for index = 1, #levelData do -- Iterate through levelData and build shapes
	local data = levelData[index]

	local shape = display.newRect(data.x, data.y, data.w, data.h)
	shape.fill = {0, 1, 0}
	physics.addBody(shape, "static", {friction = 1, bounce = 0.5})
	level:insert(shape)
end

-- Buttons
local bWidth = 200
local bHeight = 100

local bColor = {default = {1, 0, 0}, over = {1, 0.1, 0.7}}
local bStroke = {default = {1, 0.4, 0}, over = {0.8, 0.8, 1}}

local function onButtonEvent(event)
	local button = event.target

	if event.phase == "began" then
		button.holding = true
	elseif event.phase == "ended" then
		button.holding = false
	end

	return true
end

local function createPhysicsButton(label)
	local lOptions = {
		label = label,
		shape = "rect",
		width = bWidth,
		height = bHeight,
		fillColor = bColor,
		strokeColor = bStroke,
		strokeWidth = 4,
		onEvent = onButtonEvent,
	}
	local button = widget.newButton(lOptions)
	button.holding = false

	return button
end

local lButton = createPhysicsButton("left")
lButton.x = ccx - 400
lButton.y = ccy

local rButton = createPhysicsButton("right")
rButton.x = ccx + 400
rButton.y = ccy

local jButton = createPhysicsButton("fly")
jButton.x = ccx
jButton.y = ccy + 350

Runtime:addEventListener("enterFrame", function()
	if lButton.holding then
		char:applyForce(-1000, 0, char.x, char.y)
	end

	if rButton.holding then
		char:applyForce(1000, 0, char.x, char.y)
	end

	if jButton.holding then
		char:applyForce(0, -500, char.x, char.y)
	end

	-- Camera focus
	camera.x = -char.x + display.viewableContentWidth * 0.5
	camera.y = -char.y + display.viewableContentHeight * 0.5
end)