-- bring in the util module
local util = require("util")

-- world stuffs
local world = {}
    -- create a new world with given height and width
    function world.new(width, height)
        world.width = width
        world.height = height
        world.hover = nil
        world.select =  love.graphics.newImage("img/tiles/select.png")

        for x = 1, world.width do
            world[x] = {}
            for y = 1, world.height do
                world[x][y] = "nothing"
            end
        end
    end

    -- load the tile files
    function world.loadTiles()
        world.tiles = {}
        world.tiles.grass = love.graphics.newImage("img/tiles/grass.png")
        world.tiles.dirt = love.graphics.newImage("img/tiles/dirt.png")
        world.tiles.water = love.graphics.newImage("img/tiles/water.png")
        world.tiles.nothing = love.graphics.newImage("img/tiles/nothing.png")
    end

    -- render the world
    function world.render(offset)
        for x = 1, world.width do
            for y = 1, world.height do
                local tile = world[x][y]
                local loc = util.cartToIso({x = x, y = y})
    
                if tile == "grass" then 
                    image = world.tiles.grass
                elseif tile == "dirt" then
                    image = world.tiles.dirt
                elseif tile == "water" then
                    image = world.tiles.water
                else 
                    image = world.tiles.nothing
                end
    
                love.graphics.draw(image, loc.x * 16 + offset.x, loc.y * 16 + offset.y)
            end
        end

        if not world.hover == nil then
            love.graphics.draw(world.select, world.hover.x, world.hover.y)
        end
    end

return world