require 'point'
require 'gridpoint'
require 'mouse'
require 'mechanism'
require 'port'
require 'tablefuncs'
Input = require 'input'
require 'selector'

function love.load()
    Screenw, Screenh = love.window.getMode()
    Gridw, Gridh = Screenw / Config.cellSize, Screenh / Config.cellSize
    Mechs = {}

    Selected = nil
end

function love.update( dt )
    dt = dt

    Mouse:update()
    Input:update()
    selectorUpdate()

    Selected = getSelected()

    if Selected ~= nil then
        Selected.position = Mouse.point
        if Mouse.lastPressed and not Mouse.pressed then
            local intersects = TableHas( Mechs, Selected, function(this, other)
                return this:intersectsOther( other )
            end
            )
            if not intersects then
                local mech = Selected:clone()
                mech.xcorner = GridPoint:new( Selected.xcorner.x, Selected.xcorner.y )
                table.insert( Mechs, mech )
            end
        end
    end

    if Input:actionReleased( 'rotate' ) then
        if Selected ~= nil then
            Selected:rotateClockwise()
        else
            local index = TableFind(Mechs, Mouse.point, function(mp, mech)
                return mech:intersectsPoint( mp )
            end
            )
            if index ~= nil then
                Mechs[index]:rotateClockwise()
            end
        end
    end
end

function love.draw()
    love.graphics.setColor(1, 1, 1, 1)
    for i = 1, Gridw do
        love.graphics.line( i * Config.cellSize, 0, i * Config.cellSize, Screenh )
    end
    for j = 1, Gridh do
        love.graphics.line( 0, j * Config.cellSize, Screenw, j * Config.cellSize )
    end
    local mx, my = Mouse.point:globalCoords()
    local mh, mw = Config.cellSize, Config.cellSize
    love.graphics.rectangle("fill", mx, my, mh, mw)

    love.graphics.print(string.format("%s, %s", Mouse.point.x, Mouse.point.y), 100, 100)

    for _, mech in ipairs(Mechs) do
        mech:draw()
    end

    if Selected ~= nil then
        Selected:draw()
    end
end