- MAIN.LUA -

tiny = require("libs/tiny")

entity = {}
entity2 = {}

local world

local inputSystem = require("systems/InputSystem")
local renderSystem = require("systems/RenderSystem")
local movementSystem = require("systems/MovementSystem")

function love.load()
    entity = {

        controllable = true,

        position = {
            x = 0,
            y = 0
        },

        velocity = {
            x = 0,
            y = 0
        },

        render = {
            text = "entity 1",
        }
    }

    entity2 = {

        position = {
            x = 50,
            y = 50
        },

        render = {
            text = "entity 2",
        }
    }

    world = tiny.world(inputSystem, renderSystem, movementSystem, entity, entity2 )

end

function love.update(_dt)

    world:update(_dt)

end

function love.draw()
    world:update(renderSystem.filter)
end

- INPUTSYSTEM.LUA -


local InputSystem = tiny.processingSystem()

InputSystem.filter = tiny.requireAll("controllable", "velocity")

function InputSystem:init(_target)
    self.target = _target
end

function InputSystem:process(_e, _dt)

    print(_dt)

    if love.keyboard.isDown('d') then                    -- When the player presses and holds down the "D" button:
        _e.velocity.x = _e.velocity.x + (300 * _dt)    -- The player moves to the right.
    end
    if love.keyboard.isDown('a') then                -- When the player presses and holds down the "A" button:
        _e.velocity.x = _e.velocity.x - (300 * _dt)   -- The player moves to the left.
    end
    if love.keyboard.isDown('w') then
        _e.velocity.y = _e.velocity.y - (300 * _dt)
    end
    if love.keyboard.isDown('s') then
        _e.velocity.y = _e.velocity.y + (300 * _dt)
    end

end

return InputSystem