package coffee.liz.ecs.physics

import coffee.liz.ecs.World

internal class IntegrationTick<Outside> : PhysicsTick<Outside> {
    override fun runTick(world: World<Outside>) {
        world.query(Velocity::class, Acceleration::class).forEach { entity ->
            val velocity = entity.get(Velocity::class)
            val acceleration = entity.get(Acceleration::class)
            entity.add(
                Velocity(
                    vec2 = velocity.vec2.plus(acceleration.vec2),
                ),
            )
        }

        world.query(Position::class, Velocity::class).forEach { entity ->
            val position = entity.get(Position::class)
            val velocity = entity.get(Acceleration::class)
            entity.add(
                Position(
                    vec2 = position.vec2.plus(velocity.vec2),
                ),
            )
        }
    }
}