package coffee.liz.ecs.physics

import coffee.liz.ecs.Component
import coffee.liz.ecs.Rect
import coffee.liz.ecs.Vec2

data class Position(
    val position: Vec2,
) : Component

data class Velocity(
    val velocity: Vec2,
) : Component

data class Acceleration(
    val acceleration: Vec2,
) : Component

interface CollisionGroup<TGroup> {
    val collisionGroup: TGroup
    val collideInto: Set<TGroup>
}

/**
 * @param hitboxes a collection of hitboxes to check collisions against relative to [Rect.topLeft] as the top left of
 * [Position].
 */
data class Colliding<T : Enum<*>>(
    val hitboxes: Collection<Rect>,
    val group: CollisionGroup<T>,
    val propagateMovement: Boolean = true,
) : Component