Script.player = nil --entity "Player"

function Script:Start()
    self.item01 = { Name="Tree", Texture="Materials/Developer/GreenGrid.tex" }
    self.item02 = { Name="Rock", Texture="Materials/Developer/GreyGrid.tex" }
    self.item03 = { Name="Water", Texture="Materials/Developer/BlueGrid.tex" }

    self.items = { self.item01, self.item02, self.item03 }
    self.Items = items

    self.window = Window:GetCurrent()
    self.windowWidth = self.window:GetWidth()
    self.windowHeight = self.window:GetHeight()
    gamemenuopen = 0
    self.mouseStart = 0
    self.options1 = 0
    self.options2 = 0
    self.options3 = 0
    self.menustrength = 0
    self.menudexterity = 0
    self.menuintelligence = 0
    self.mouseInv = 0
    self.oldmousex = 10
    self.oldmousey = 10
    self.context = Context:GetCurrent()

    -- load textures to be shown as "Button"
    self.button = Texture:Load("Materials/HUD/Btn_not_pressed.tex")
    self.button_pressed = Texture:Load("Materials/HUD/Btn_pressed.tex")
    self.inv_grid = Texture:Load("Materials/HUD/Inventory.tex")
    self.inv_grid_hover = Texture:Load("Materials/HUD/Inventory_hover.tex")

    -- change font and size for those buttons
    local font = Font:Load("Materials/Fonts/arial.ttf", 20)
    self.context:SetFont(font)
    font:Release()
end

--This function will be called after the world is rendered, before the screen is refreshed.
--Use this to perform any 2D drawing you want the entity to display.
function Script:PostRender(context)
    local mousepos = self.window:GetMousePosition()
    local mx = mousepos.x
    local my = mousepos.y

    -- check if Key "T" is hit, if yes switch state of variable "gamemenuopen"
    if self.window:KeyHit(Key.T) then
        if gamemenuopen == 0 then
            gamemenuopen = 1
        else
            gamemenuopen = 0
        end
    end
    if gamemenuopen == 0 then
        App.window:HideMouse()
    else
        App.window:ShowMouse()
    end
    -- if menu is open  ...
    if gamemenuopen == 1 then
        self.context:SetColor(1,1,1)
        self.context:SetBlendMode(Blend.Alpha)
        -- if mouse cursor is within the red button named "Start"
        if self.mouseStart == 0 then
            self:Menu(self.context, "Start", 10, 10)
        else
            -- change text to "Hit!"
            self:Menu(self.context, "Start", 10, 10)
            self:Menu(self.context, "Character", 10, 200)
            self:Menu(self.context, "Option 2", 10, 300)
            self:Menu(self.context, "Option 3", 10, 400)

            if self.options1 == 1 then
                self:Menu(self.context, "Strength", 250, 200)
                self:Menu(self.context, "Dexterity", 250, 240)
                self:Menu(self.context, "Intelligence", 250, 280)
            end
            if self.menustrength == 1 then
                self:Menu(self.context, "Lumberjacking", 500, 200)
                self:Menu(self.context, "Mining", 500, 240)
            end
            if self.menudexterity == 1 then
                self:Menu(self.context, "Hunting", 500, 200)
                self:Menu(self.context, "Trapmaking", 500, 240)
            end
            if self.menuintelligence == 1 then
                self:Menu(self.context, "Architecture", 500, 200)
            end
        end

        -- show another button
        self:Menu(self.context, "Exit", 10, self.windowHeight-100)
        -- draw Inventory
        self.context:SetBlendMode(Blend.Solid)
    end
end

-- define "Menu" function
function Script:Menu(context, label, x, y)
    -- grab actual mouse position within the window
    local mousepos = self.window:GetMousePosition()
    -- store the mouse X and Y coordinates
    local mx = mousepos.x
    local my = mousepos.y

    -- show the mouse Cursor
    --self.window:ShowMouse()

    -- draw the button image, with the image stored in "button_pressed if the mouse hovers over it"
    if mx >= x and my >= y and mx <= x+200 and my <= y+35 then
        self.context:DrawImage(self.button_pressed, x, y, 200, 35)
        self.context:DrawText(label, x+5, y+3)
    else
        -- draw the image stored in "button"
        self.context:DrawImage(self.button, x, y, 200, 35)
        self.context:DrawText(label, x+5, y+3)
    end
    -- check if someone clicked within the button "Start", if yes switch state of "mouseStart" between 1 and 0
    if mx >= x and my >= y and mx <= x+200 and my <= y+35 and self.window:MouseHit(Key.LButton) then
        if label == "Start" then
            if self.mouseStart == 0 then
                self.mouseStart = 1
            else
                self.mouseStart = 0
                local temp = self.window:GetMousePosition()
                self.oldmousex = temp.x
                self.oldmousey = temp.y
            end
            elseif label == "Exit" then
                App:ExitGame()
            end
        if label == "Character" then
            if self.options1 == 0 then
                self.options1 = 1
            else
                self.options1 = 0
                self.menustrength = 0
                self.menudexterity = 0
                self.menuintelligence = 0
            end
        end
        if label == "Option 2" then
            if self.options2 == 0 then
                self.options2 = 1
            else
                self.options2 = 0
            end
        end
        if label == "Option 3" then
            if self.options3 == 0 then
                self.options3 = 1
            else
                self.options3 = 0
            end
        end
        if label == "Strength" then
            if self.menustrength == 0 then
                self.menustrength = 1
                self.menudexterity = 0
                self.menuintelligence = 0
            else
                self.menustrength = 0
            end
        end
        if label == "Dexterity" then
            if self.menudexterity == 0 then
                self.menudexterity = 1
                self.menustrength = 0
                self.menuintelligence = 0
            else
                self.menudexterity = 0
            end
        end
        if label == "Intelligence" then
            if self.menuintelligence == 0 then
                self.menuintelligence = 1
                self.menustrength = 0
                self.menudexterity = 0
            else
                self.menuintelligence = 0
            end
        end
    end
end