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package coffee.liz.ecs.input

import coffee.liz.ecs.System
import coffee.liz.ecs.TickedSystem
import coffee.liz.ecs.World
import kotlin.time.Duration

class InputSystem<Outside : InputProvider>(
    pollRate: Duration
) : TickedSystem<Outside>(pollRate) {
    private val activeInputs = mutableMapOf<String, Int>()

    override fun update(world: World<Outside>, state: Outside, ticks: Int) {
        state.inputState.activeInputs.forEach {
            activeInputs[it] = (activeInputs[it] ?: 0) + ticks
        }
        activeInputs.keys.retainAll(state.inputState.activeInputs)

        world.query(Controlled::class).forEach {
            it.get(Controlled::class).handleInput(activeInputs.toMap())
        }
    }
}