require "grid"
require "point"
require "line"

function love.load()
    love.graphics.setLineStyle( Config.lineStyle )
    love.graphics.setLineWidth( Config.lineWidth )

    gameGrid = Grid:new( Point:new( 5, 5 ) )
    local line = Line:new(
        GridPoint:new( 1, 1 ),
        GridPoint:new( 3, 3 ),
        Color.red
    )
    gameGrid:push( line )
    mouse = {
        x = 0,
        y = 0,
        pressed = false,
        lastPressed = false
    }
end

-- TODO: move input interactions into module
function love.update( dt )
    mouse.x, mouse.y = love.mouse.getPosition()
    mouse.lastPressed = pressed
    mouse.pressed = love.mouse.isDown( 1 )
end

function love.draw()
    gameGrid:draw()

    if mouse.pressed then
        local x, y = snapCoords( Point:new( mouse.x, mouse.y ) ):coords()
        local text = string.format( "%d:%d global\n%d:%d local", mouse.x, mouse.y, x, y )
        love.graphics.print( text, 64, 256 )
    end
end

-- Returns local coords from global
function snapCoords( point )
    local x = math.ceil( point.x / Config.cellSize )
    local y = math.ceil( point.y / Config.cellSize )
    return GridPoint:new( x, y )
end