it.unibo.alchemist.model.implementations.actions.physicalstrategies.Sum.kt Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of alchemist-physics Show documentation

Abstraction for pedestrians capable of interacting physically.

There is a newer version: 36.0.11

/*
 * Copyright (C) 2010-2020, Danilo Pianini and contributors
 * listed in the main project's alchemist/build.gradle.kts file.
 *
 * This file is part of Alchemist, and is distributed under the terms of the
 * GNU General Public License, with a linking exception,
 * as described in the file LICENSE in the Alchemist distribution's top directory.
 */

package it.unibo.alchemist.model.implementations.actions.physicalstrategies

import it.unibo.alchemist.model.implementations.positions.Euclidean2DPosition
import it.unibo.alchemist.model.interfaces.Node
import it.unibo.alchemist.model.interfaces.PhysicalSteeringStrategy
import it.unibo.alchemist.model.interfaces.SteeringStrategy
import it.unibo.alchemist.model.interfaces.environments.Physics2DEnvironment
import it.unibo.alchemist.model.interfaces.geometry.euclidean2d.Euclidean2DShapeFactory
import it.unibo.alchemist.model.interfaces.geometry.euclidean2d.Euclidean2DTransformation
import it.unibo.alchemist.model.interfaces.properties.PhysicalPedestrian2D
import it.unibo.alchemist.model.interfaces.Node.Companion.asProperty

/**
 * A [PhysicalSteeringStrategy] performing a simple sum of the overall intentional force and the physical ones.
 */
class Sum(
    private val environment: Physics2DEnvironment,
    override val node: Node,
    override val nonPhysicalStrategy: SteeringStrategy
) : PhysicalSteeringStrategy {

    private val nodePhysics = node.asProperty>()

    override fun computeNextPosition(overallIntentionalForce: Euclidean2DPosition): Euclidean2DPosition =
        (nodePhysics.physicalForces(environment) + overallIntentionalForce)
            .reduce { acc, p -> acc + p }
}