private static bool platform_collision(Arc arc, PlanetariaCollider collider, PlanetariaTransform transformation, PlanetariaRigidbody rigidbody, optional <Vector3> intersection_point)
{
Vector3 velocity = Bearing.attractor(rigidbody.get_previous_position(), rigidbody.get_position());
if (intersection_point.exists)
{
float arc_angle = arc.position_to_angle(intersection_point.data);
Vector3 normal = arc.normal(arc_angle);
bool upward_facing_normal = Vector3.Dot(normal, rigidbody.get_acceleration()) <= 0;
bool moving_toward = Vector3.Dot(normal, velocity) <= 0;
if (upward_facing_normal && moving_toward)
{
return(true);
}
}
return(false);
}
/// <summary>
/// Inspector (Cache Mutator) - Updates the cache so that spherical rectangle calculations avoid recomputing old values.
/// </summary>
/// <param name="canvas">A Rect (measuring radians) representing the start and stop angles relative to Quaternion.identity. X/Y Range: (-2PI, +2PI).</param>
public static void cache_spherical_rectangle(Rect canvas)
{
if (cached_canvas != canvas)
{
Vector3 lower_left = intersection(canvas.xMin, canvas.yMin);
Vector3 lower_center = intersection(canvas.center.x, canvas.yMin);
Vector3 lower_right = intersection(canvas.xMax, canvas.yMin);
Vector3 middle_left = intersection(canvas.xMin, canvas.center.y);
Vector3 middle_center = intersection(canvas.center.x, canvas.center.y);
Vector3 middle_right = intersection(canvas.xMax, canvas.center.y);
Vector3 upper_left = intersection(canvas.xMin, canvas.yMax);
Vector3 upper_center = intersection(canvas.center.x, canvas.yMax);
Vector3 upper_right = intersection(canvas.xMax, canvas.yMax);
Arc biangle_segment1 = ArcFactory.curve(upper_center, upper_right, -upper_center);
Arc biangle_segment2 = ArcFactory.curve(lower_center, lower_right, -lower_center);
cached_left_biangle_focus = PlanetariaIntersection.arc_arc_intersection(biangle_segment1, biangle_segment2, 0).data;
cached_left_positive_partition = Bearing.attractor(cached_left_biangle_focus, middle_left); // used for a dot product to determine if the angle applied for UV is +/-
if (Vector3.Dot(cached_left_positive_partition, middle_center) >= 0)
{
cached_left_start_angle = Vector3.Angle(cached_left_biangle_focus, middle_center) * Mathf.Deg2Rad;
cached_left_end_angle = Vector3.Angle(cached_left_biangle_focus, middle_left) * Mathf.Deg2Rad;
}
else
{
cached_left_start_angle = Vector3.Angle(-cached_left_biangle_focus, middle_center) * Mathf.Deg2Rad + Mathf.PI;
cached_left_end_angle = Vector3.Angle(-cached_left_biangle_focus, middle_left) * Mathf.Deg2Rad + Mathf.PI;
}
biangle_segment1 = ArcFactory.curve(upper_center, upper_left, -upper_center);
biangle_segment2 = ArcFactory.curve(lower_center, lower_left, -lower_center);
cached_right_biangle_focus = PlanetariaIntersection.arc_arc_intersection(biangle_segment1, biangle_segment2, 0).data;
cached_right_positive_partition = Bearing.attractor(cached_right_biangle_focus, middle_right); // used for a dot product to determine if the angle applied for UV is +/-
if (Vector3.Dot(cached_right_positive_partition, middle_center) >= 0)
{
cached_right_start_angle = Vector3.Angle(cached_right_biangle_focus, middle_center) * Mathf.Deg2Rad;
cached_right_end_angle = Vector3.Angle(cached_right_biangle_focus, middle_right) * Mathf.Deg2Rad;
}
else
{
cached_right_start_angle = Vector3.Angle(-cached_right_biangle_focus, middle_center) * Mathf.Deg2Rad + Mathf.PI;
cached_right_end_angle = Vector3.Angle(-cached_right_biangle_focus, middle_right) * Mathf.Deg2Rad + Mathf.PI;
}
biangle_segment1 = ArcFactory.curve(middle_left, upper_left, -middle_left);
biangle_segment2 = ArcFactory.curve(middle_right, upper_right, -middle_right);
cached_lower_biangle_focus = PlanetariaIntersection.arc_arc_intersection(biangle_segment1, biangle_segment2, 0).data;
cached_lower_positive_partition = Bearing.attractor(cached_lower_biangle_focus, lower_center); // used for a dot product to determine if the angle applied for UV is +/-
if (Vector3.Dot(cached_lower_positive_partition, middle_center) >= 0)
{
cached_lower_start_angle = Vector3.Angle(cached_lower_biangle_focus, middle_center) * Mathf.Deg2Rad;
cached_lower_end_angle = Vector3.Angle(cached_lower_biangle_focus, lower_center) * Mathf.Deg2Rad;
}
else
{
cached_lower_start_angle = Vector3.Angle(-cached_lower_biangle_focus, middle_center) * Mathf.Deg2Rad + Mathf.PI;
cached_lower_end_angle = Vector3.Angle(-cached_lower_biangle_focus, lower_center) * Mathf.Deg2Rad + Mathf.PI;
}
biangle_segment1 = ArcFactory.curve(middle_left, lower_left, -middle_left);
biangle_segment2 = ArcFactory.curve(middle_right, lower_right, -middle_right);
cached_upper_biangle_focus = PlanetariaIntersection.arc_arc_intersection(biangle_segment1, biangle_segment2, 0).data;
cached_upper_positive_partition = Bearing.attractor(cached_upper_biangle_focus, upper_center); // used for a dot product to determine if the angle applied for UV is +/-
if (Vector3.Dot(cached_upper_positive_partition, middle_center) >= 0)
{
cached_upper_start_angle = Vector3.Angle(cached_upper_biangle_focus, middle_center) * Mathf.Deg2Rad;
cached_upper_end_angle = Vector3.Angle(cached_upper_biangle_focus, upper_center) * Mathf.Deg2Rad;
}
else
{
cached_upper_start_angle = Vector3.Angle(-cached_upper_biangle_focus, middle_center) * Mathf.Deg2Rad + Mathf.PI;
cached_upper_end_angle = Vector3.Angle(-cached_upper_biangle_focus, upper_center) * Mathf.Deg2Rad + Mathf.PI;
}
cached_north_hemisphere = Bearing.attractor(middle_center, upper_center);
cached_east_hemisphere = Bearing.attractor(middle_center, middle_right);
cached_canvas = canvas;
}
}
public Vector3 get_acceleration()
{
return(Bearing.attractor(get_position(), gravity.normalized) * gravity.magnitude);
}