/// <summary>
/// Attract/Repell the gameobjects of the container which are within the brush
/// </summary>
/// <param name="hit"></param>
/// <param name="attract"></param>
private void Magnet(RaycastHit hit, bool attract)
{
// just some arbitrary value depending on the magnet strength which ranges from 0..100
float magnetFactor = editorTarget.interactionSettings.magnetStrength / 1000f;
Transform[] containerChildren = PrefabUtils.GetContainerChildren(editorTarget.container);
foreach (Transform transform in containerChildren)
{
Vector3 distance = hit.point - transform.position;
// only those within the brush
if (distance.magnitude > editorTarget.brushSettings.brushSize / 2f)
{
continue;
}
Vector3 direction = distance.normalized;
transform.position += direction * magnetFactor * (attract ? 1 : -1);
}
}
/// <summary>
/// Increment y-position in world space
/// </summary>
/// <param name="hit"></param>
private void AntiGravity(RaycastHit hit)
{
// just some arbitrary value depending on the magnet strength which ranges from 0..100
float antiGravityFactor = editorTarget.interactionSettings.antiGravityStrength / 1000f;
Transform[] containerChildren = PrefabUtils.GetContainerChildren(editorTarget.container);
foreach (Transform transform in containerChildren)
{
Vector3 distance = hit.point - transform.position;
// only those within the brush
if (distance.magnitude > editorTarget.brushSettings.brushSize / 2f)
{
continue;
}
// https://docs.unity3d.com/ScriptReference/Transform-up.html
// https://docs.unity3d.com/ScriptReference/Vector3-up.html
transform.position += Vector3.up * antiGravityFactor;
}
}
private void ApplyPhysics()
{
PhysicsSimulation physicsSimulation = ScriptableObject.CreateInstance <PhysicsSimulation>();
PhysicsSettings physicsSettings = new PhysicsSettings();
physicsSettings.simulationStepCountMax = gizmo.brushSettings.autoSimulationStepCountMax;
physicsSettings.simulationStepIterations = gizmo.brushSettings.autoSimulationStepIterations;
physicsSimulation.ApplySettings(physicsSettings);
// TODO: use only the new added ones?
Transform[] containerChildren = PrefabUtils.GetContainerChildren(gizmo.container);
if (gizmo.brushSettings.autoSimulationType == BrushSettings.AutoSimulationType.Once)
{
physicsSimulation.RunSimulationOnce(containerChildren);
}
else if (gizmo.brushSettings.autoSimulationType == BrushSettings.AutoSimulationType.Continuous)
{
physicsSimulation.StartSimulation(containerChildren);
}
}
// TODO: create common class
private Transform[] getContainerChildren()
{
return(PrefabUtils.GetContainerChildren(gizmo.container));
}
private void StartSimulation()
{
Transform[] containerChildren = PrefabUtils.GetContainerChildren(editorTarget.container);
AutoPhysicsSimulation.ApplyPhysics(editorTarget.physicsSettings, containerChildren, SpawnSettings.AutoSimulationType.Continuous);
}
public static void ApplyPhysics(PhysicsSettings physicsSettings, GameObject container, SpawnSettings.AutoSimulationType autoSimulationType)
{
Transform[] containerChildren = PrefabUtils.GetContainerChildren(container);
ApplyPhysics(physicsSettings, containerChildren, autoSimulationType);
}