public static Vector3[] valid_arc_intersections(Arc arc, Vector3[] intersections, // TODO: research and development
Quaternion orientation,
optional <float> max_angle = new optional <float>())
{
if (!max_angle.exists)
{
max_angle = arc.angle();
}
Vector3[] results = new Vector3[0];
for (int intersection_index = 0; intersection_index < intersections.Length; ++intersection_index)
{
Vector3 intersection_point = intersections[intersection_index];
if (orientation != Quaternion.identity)
{
Quaternion arc_to_world = orientation;
Quaternion world_to_arc = Quaternion.Inverse(arc_to_world);
intersection_point = world_to_arc * intersection_point;
}
Vector3 arc_left = arc.position(-max_angle.data / 2);
Vector3 arc_center = arc.position(0);
Vector3 arc_right = arc.position(+max_angle.data / 2);
Vector3 boundary_midpoint = (arc_left + arc_right) / 2;
Plane arc_validator = new Plane(arc_center, boundary_midpoint);
if (arc_validator.GetSide(intersection_point))
{
Array.Resize(ref results, results.Length + 1);
results[results.Length - 1] = intersections[intersection_index];
}
}
return(results);
}
/// <summary>
/// Mutator (Operating System level) - Writes (or overwrites!) the file at location "file" with the string "text_contents".
/// </summary>
/// <param name="file">The relative file path starting in the Unity directory (e.g. "Assets/important_file.txt"). Note: will be overwritten.</param>
/// <param name="text_contents">The contents that will be placed in the file (overwrites file).</param>
/// <param name="add_global_unique_identifier">Adds "_[0-9a-f]{32}" before file extension (last dot) in "file".</param>
public static optional <TextAsset> write_file(string file, string text_contents, bool add_global_unique_identifier)
{
using (StreamWriter writer = new StreamWriter(file, false))
{
string suffix = "";
writer.Write(text_contents);
if (add_global_unique_identifier)
{
writer.Dispose();
UnityEditor.AssetDatabase.Refresh();
string global_unique_identifier = text_contents.GetHashCode().ToString("X");
Debug.Log("Creating " + global_unique_identifier);
suffix = "_" + global_unique_identifier;
optional <string> name = Miscellaneous.inner_text(file, "/", ".");
if (name.exists)
{
UnityEditor.AssetDatabase.RenameAsset(file, name.data + suffix); // FIXME: INVESTIGATE: why does optional<string> + string work? (for safety reasons, it shouldn't)
}
else
{
Debug.Log("Critical Error");
}
}
UnityEditor.AssetDatabase.Refresh();
optional <string> resource = Miscellaneous.inner_text(file, "/Resources/", ".");
if (resource.exists)
{
resource = resource.data + suffix;
return(Resources.Load <TextAsset>(resource.data));
}
return(new optional <TextAsset>());
}
}
private void initialize_pole_light(optional <float> angle = new optional <float>())
{
internal_light.type = LightType.Spot;
internal_light.spotAngle = (range * 2) * Mathf.Rad2Deg;
internal_cuculoris = create_pole_texture(internal_light.spotAngle);
cuculoris.apply_to(ref internal_cuculoris, angle.exists ? angle.data : 2 * Mathf.PI);
internal_light.cookie = internal_cuculoris;
internal_transform.position = Vector3.zero;
internal_transform.rotation = Quaternion.identity;
}
/// <summary>
/// Mutator - Gets the attached PlanetariaComponent if it exists; otherwise it adds and returns it.
/// </summary>
/// <typeparam name="Subtype">The type of the PlanetariaComponent to be fetched.</typeparam>
/// <returns>The found or newly added PlanetariaComponent.</returns>
public Subtype GetOrAddComponent <Subtype>() where Subtype : PlanetariaComponent
{
optional <Subtype> result = GetComponent <Subtype>();
if (!result.exists)
{
result = AddComponent <Subtype>();
}
return(result.data);
}
private static LevelCreatorEditor.CreateShape escape()
{
// Escape: close the shape so that it meets with the original point (using original point for slope)
if (temporary_arc.exists)
{
temporary_arc.data.close_shape();
temporary_arc = new optional <ArcBuilder>();
}
return(LevelCreatorEditor.draw_initialize);
}
/// <summary>
/// Mutator - Gets the attached Component if it exists; otherwise it adds and returns it.
/// </summary>
/// <typeparam name="Subtype">The type of the Component to be fetched.</typeparam>
/// <param name="self">Calling object (explicit)</param>
/// <returns>The found or newly added Component.</returns>
public static Subtype GetOrAddComponent <Subtype>(Component self) where Subtype : Component
{
optional <Subtype> result = self.GetComponent <Subtype>();
if (!result.exists)
{
result = self.gameObject.AddComponent <Subtype>();
}
return(result.data);
}
public void move_position(float delta_length, optional <float> extrusion = new optional <float>()) // CONSIDER: combine move_position/set_position?
{
if (extrusion.exists)
{
last_extrusion = extrusion.data;
initialize();
}
float delta_angle = delta_length * (arc_angle / arc_length);
set_position(angular_position + delta_angle);
}
public static optional <Texture2D> fetch_image(string image_file)
{
optional <Texture2D> texture = new optional <Texture2D>();
if (File.Exists(image_file))
{
byte[] raw_file_binary = File.ReadAllBytes(image_file);
texture = new Texture2D(0, 0);
texture.data.LoadImage(raw_file_binary);
}
return(texture);
}
private void initialize_camera(optional <Camera> internal_camera, Rect screen, int draw_order)
{
if (internal_camera.exists)
{
Camera camera = internal_camera.data;
camera.rect = screen;
camera.depth = draw_order;
camera.useOcclusionCulling = false;
camera.nearClipPlane = near_clip_plane;
camera.farClipPlane = far_clip_plane;
camera.stereoSeparation = 0;
camera.stereoConvergence = 0.01f;
}
}
/// <summary>
/// Inspector - Draw an arc with lines only (basic)
/// </summary>
/// <param name="arc">The arc that will be rendered.</param>
/// <param name="distance">The distance of the arc, negative or positive (overrides actual distance).</param>
public static void draw_simple_arc(Arc arc, optional <float> distance = new optional <float>())
{
float start_angle = -arc.half_angle;
float angle = distance.exists ? distance.data : arc.angle();
int segments = 50;
for (int segment = 1; segment <= segments; ++segment)
{
float end_angle = -arc.half_angle + segment / (float)segments * angle;
Debug.DrawLine(arc.position(start_angle), arc.position(end_angle), Color.yellow, 5f);
start_angle = end_angle;
}
}
public override bool Equals(System.Object other_object) // FIXME:
{
bool equal_type = other_object is optional <Type>;
if (!equal_type)
{
return(false);
}
optional <Type> other = (optional <Type>)other_object;
bool inequal_existance = (this.exists != other.exists);
bool inequal_value = (this.exists && other.exists && !this.data.Equals(other.data));
bool inequal = inequal_existance || inequal_value;
return(!inequal);
}
private void OnTriggerStay(Collider collider)
{
optional <SphereCollider> sphere_collider = collider as SphereCollider;
if (!sphere_collider.exists)
{
Debug.LogError("This should never happen");
return;
}
optional <PlanetariaCollider> other_collider = PlanetariaCache.collider_fetch(sphere_collider.data);
if (!other_collider.exists)
{
Debug.LogError("This should never happen");
return;
}
Quaternion shift_from_self_to_other = other_collider.data.internal_transform.rotation;
if (this.internal_transform.rotation != Quaternion.identity) // Only shift orientation when necessary
{
// TODO: verify the order of operations is correct (and logic itself)
shift_from_self_to_other = Quaternion.Inverse(this.internal_transform.rotation) * shift_from_self_to_other;
}
if (other_collider.data.is_field) // field collision
{
if (this.shape.field_collision(other_collider.data.shape, shift_from_self_to_other))
{
observer.potential_field_collision(other_collider.data); // TODO: augment field (like Unity triggers) works on both the sender and receiver.
}
}
else // block collision
{
foreach (Arc intersection in this.shape.block_collision(other_collider.data.shape, shift_from_self_to_other))
{
Vector3 position = planetaria_transform.position;
if (other_collider.data.gameObject.internal_game_object.transform.rotation != Quaternion.identity) // Only shift orientation when necessary
{
position = Quaternion.Inverse(other_collider.data.gameObject.internal_game_object.transform.rotation) * position;
}
if (intersection.contains(position, planetaria_transform.scale / 2))
{
observer.potential_block_collision(intersection, other_collider.data); // block collisions are handled in OnCollisionStay(): notification stage
}
}
}
}
public static optional <SphericalCirclePlanetarium> load(string file_name, float radius)
{
optional <Material> material = WorldPlanetarium.load_material(file_name);
if (!material.exists)
{
return(new optional <SphericalCirclePlanetarium>());
}
SphericalCirclePlanetarium result = new SphericalCirclePlanetarium();
result.material = material.data;
result.texture = (Texture2D)WorldPlanetarium.load_texture(file_name);
result.material.SetTexture("_MainTex", result.texture);
result.radius_variable = radius;
return(result);
}
public static optional <OctahedronPlanetarium> load(string file_name)
{
optional <Material> material = WorldPlanetarium.load_material(file_name);
if (!material.exists)
{
return(new optional <OctahedronPlanetarium>());
}
Texture2D texture = (Texture2D)WorldPlanetarium.load_texture(file_name);
OctahedronPlanetarium result = new OctahedronPlanetarium(texture.width);
result.material = material.data;
result.texture = texture;
result.material.SetTexture("_MainTex", result.texture);
return(result);
}
public bool is_self_intersecting()
{
List <Arc> edges = generate_edges();
for (int left = 0; left < edges.Count; ++left)
{
for (int right = left + 1; right < edges.Count; ++right)
{
optional <Vector3> intersection = PlanetariaIntersection.arc_arc_intersection(edges[left], edges[right], 0);
if (intersection.exists)
{
return(true);
}
}
}
return(false);
}
public static optional <CubePlanetarium> load(string file_name)
{
optional <Material> material = WorldPlanetarium.load_material(file_name);
if (!material.exists)
{
return(new optional <CubePlanetarium>());
}
int size = material.data.GetTexture(directions[0]).width;
CubePlanetarium result = new CubePlanetarium(size);
result.material = material.data;
for (int face = 0; face < directions.Length; ++face)
{
Texture2D texture = (Texture2D)material.data.GetTexture(directions[face]);
result.textures[face] = texture;
}
return(result);
}
/// <summary>
/// Mutator - MouseDown finalizes equilateral shape.
/// </summary>
/// <returns>The next mode for the state machine.</returns>
public static LevelCreatorEditor.CreateShape draw_equilateral(bool force_quit = false)
{
if (force_quit)
{
return(escape());
}
builder.data.set_edge(LevelCreatorEditor.get_mouse_position());
// MouseUp: create first vertex of equilateral shape
if (Event.current.type == EventType.MouseUp && Event.current.button == 0)
{
builder.data.close_shape();
builder = new optional <EquilateralBuilder>();
return(draw_center);
}
return(draw_equilateral);
}
/// <summary>
/// Mutator - Gets the designated object from the root of the scene if it exists; otherwise it creates and returns it.
/// </summary>
/// <param name="name">The name of the object (without double leading underscores i.e. "__").</param>
/// <param name="hidden_internal">Whether the GameObject should be hidden unless debugging.</param>
/// <returns>The found or newly added object from the root of the scene.</returns>
public static GameObject GetOrAddObject(string name, bool hidden_internal = true)
{
if (hidden_internal)
{
name = "__" + name;
}
optional <GameObject> game_object = GameObject.Find("/" + name);
if (!game_object.exists)
{
game_object = new GameObject(name);
}
#if UNITY_EDITOR
if (hidden_internal && !EditorGlobal.self.show_inspector)
{
game_object.data.hideFlags = (HideFlags.HideInHierarchy | HideFlags.HideInInspector);
}
#endif
return(game_object.data);
}
public void potential_block_collision(Arc arc, PlanetariaCollider collider)
{
if (planetaria_rigidbody.exists)
{
if (current_collisions.Count == 0 || current_collisions[0].other != collider)
{
optional <BlockCollision> collision = BlockCollision.block_collision(this, arc, collider, planetaria_transformation, planetaria_rigidbody.data);
if (collision.exists)
{
if (planetaria_rigidbody.exists)
{
if (planetaria_rigidbody.data.collide(collision.data, this))
{
collision_candidates.Add(collision.data);
}
}
}
}
}
}
public void derail(float x_velocity, float y_velocity)
{
if (observer.exists && observer.data.colliding())
{
BlockCollision collision = observer.data.collisions()[0];
collision.geometry_visitor.move_position(0, transform.scale / 2 * (1 + 1e-3f)); // extrude the player so they do not accidentally re-collide (immediately) // FIXME: magic number, move to Precision.*
x_velocity += horizontal_velocity;
//y_velocity += vertical_velocity;
planetaria_transform.position = collision.geometry_visitor.position();
Vector3 normal = collision.geometry_visitor.normal();
Vector3 right = Bearing.right(planetaria_transform.position, normal);
velocity = right * x_velocity + normal * y_velocity;
Debug.DrawRay(planetaria_transform.position, velocity, Color.yellow, 1f);
acceleration = get_acceleration();
// TODO: accelerate vertically
observer.data.clear_block_collision();
observer = new optional <CollisionObserver>();
}
}
private void initialize()
{
arc_angle = arc_visitor.arc.angle();
float floor_length = arc_visitor.arc.length(); // edge case
float ceiling_length = arc_visitor.arc.length(2 * offset); // corner case
arc_length = Mathf.Max(floor_length, ceiling_length); // use longer distance to make movement feel consistent
left_angle_boundary = -arc_angle / 2;
if (concave(arc_visitor[-1], offset)) // set left boundary
{
optional <Vector3> intersection = PlanetariaIntersection.arc_arc_intersection(arc_visitor[0], arc_visitor[-2], offset);
left_angle_boundary = arc_visitor.arc.position_to_angle(intersection.data);
}
right_angle_boundary = +arc_angle / 2;
if (concave(arc_visitor[+1], offset)) // set right boundary
{
optional <Vector3> intersection = PlanetariaIntersection.arc_arc_intersection(arc_visitor[0], arc_visitor[+2], offset);
right_angle_boundary = arc_visitor.arc.position_to_angle(intersection.data);
}
}
/// <summary>
/// Mutator - Gets the attached child by its name if it exists; otherwise it adds and returns it.
/// </summary>
/// <param name="self">Calling object - extension method (implicit).</param>
/// <param name="name">The name of the object (without double leading underscores i.e. "__").</param>
/// <param name="hidden_internal">Whether the GameObject should be hidden unless debugging.</param>
/// <returns>The found or newly added child with given name.</returns>
public static GameObject GetOrAddChild(this Component self, string name, bool hidden_internal = true) // TODO: should this return PlanetariaGameObject; this is an inadvertently exposed API, how should I fix this? Likely by making this a non-extension
{
if (hidden_internal)
{
name = "__" + name;
}
optional <Transform> child = self.transform.Find(name);
if (!child.exists)
{
GameObject child_object = new GameObject(name);
child_object.transform.parent = self.transform;
child_object.transform.localPosition = Vector3.zero; // Ensure all children are on the same planetarium as their parent
child = child_object.transform;
child_object.layer = self.gameObject.layer;
}
#if UNITY_EDITOR
if (hidden_internal && EditorGlobal.self.show_inspector)
{
child.data.hideFlags = (HideFlags.HideInHierarchy | HideFlags.HideInInspector);
}
#endif
return(child.data.gameObject);
}
/// <summary>
/// Inspector/Constructor - Creates a copy of the shape then sets closed=true
/// </summary>
/// <returns>A closed shape mirroring all properties of original but with closed=true.</returns>
public void close(optional <Vector3> slope = new optional <Vector3>(), AppendMode permanence = AppendMode.OverwriteWithPermanent)
{
if (permanence == AppendMode.OverwriteWithEphemeral ||
permanence == AppendMode.OverwriteWithPermanent)
{
serialized_arc_list.RemoveRange(serialized_arc_list.Count - ephemeral_arcs, ephemeral_arcs);
ephemeral_arcs = 0;
}
// Add last edge! (if not already closed and Dot of last/first point is != 1)
if (!closed())
{
Arc first_arc = serialized_arc_list[0];
Arc last_arc = serialized_arc_list[serialized_arc_list.Count - 1];
if (!slope.exists)
{
slope = first_arc.begin();
}
append(ArcFactory.curve(last_arc.end(), slope.data, first_arc.begin()), permanence);
}
initialize();
// TODO: if field, make this a convex_hull() // TODO: add convex property
}
public static Vector3 snap(Vector3 position, bool v_pressed)
{
if (Event.current.control && Event.current.shift) // Edge snap on Control + Shift + click
{
optional <Vector3> edge_snap = closest_heuristic(ArcUtility.snap_to_edge, position);
if (edge_snap.exists)
{
return(edge_snap.data);
}
}
else if (EditorGlobal.self.v_pressed) // Vertex snap on V + click
{
optional <Vector3> vertex_snap = closest_heuristic(ArcUtility.snap_to_vertex, position);
if (vertex_snap.exists)
{
return(vertex_snap.data);
}
}
else if (Event.current.shift) // Grid snap on Shift + click
{
return(grid_snap(position));
}
return(position); // return the input position (if all else fails).
}
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);
}
private void OnGUI()
{
if (GUILayout.Button("Image(s) to convert"))
{
from_file_name = EditorUtility.OpenFilePanel("PNG to convert", "Assets/Planetaria/ExampleProjects/DébrisNoirs/Art/Textures", "mat"); // TODO: multiple types
from_file_name = from_file_name.Substring(0, from_file_name.Length - 4);
// this is an editor tool, so the following is fine:
int clip_index = from_file_name.IndexOf("Assets/");
from_file_name = from_file_name.Substring(clip_index);
}
if (GUILayout.Button("Generated PNG(s) filename"))
{
to_file_name = EditorUtility.SaveFilePanel("Generated PNG filename", "Assets/Planetaria/ExampleProjects/DébrisNoirs/Art/Textures", "output_file", "png"); // TODO: multiple types and use output in conversion // FIXME: HACK: trying to make deadlines
to_file_name = to_file_name.Substring(0, to_file_name.Length - 4);
// this is an editor tool, so the following is fine:
int clip_index = to_file_name.IndexOf("Assets/");
to_file_name = to_file_name.Substring(clip_index);
}
GUILayout.BeginHorizontal();
from_shape = (Shape)EditorGUILayout.EnumPopup("Current shape format", from_shape);
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
to_shape = (Shape)EditorGUILayout.EnumPopup("Target shape format", to_shape);
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
resolution = EditorGUILayout.IntField("Pixel resolution", resolution);
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
sample_rate = EditorGUILayout.IntField("Sample rate", sample_rate);
GUILayout.EndHorizontal();
switch (from_shape)
{
case Shape.SphericalRectangle:
GUILayout.BeginHorizontal();
canvas = EditorGUILayout.RectField("Spherical Rectangle", canvas);
GUILayout.EndHorizontal();
break;
case Shape.SphericalCircle:
GUILayout.BeginHorizontal();
radius = EditorGUILayout.FloatField("Spherical Circle radius", radius);
GUILayout.EndHorizontal();
break;
}
if (GUILayout.Button("Convert"))
{
WorldPlanetarium from;
WorldPlanetarium to;
switch (from_shape)
{
case Shape.Cube:
optional <CubePlanetarium> cubemap = CubePlanetarium.load(from_file_name);
Debug.Assert(cubemap.exists);
from = cubemap.data;
break;
case Shape.Octahedron:
optional <OctahedronPlanetarium> octahedron = OctahedronPlanetarium.load(from_file_name);
Debug.Assert(octahedron.exists);
from = octahedron.data;
break;
case Shape.SphericalRectangle:
optional <SphericalRectanglePlanetarium> rectangle = SphericalRectanglePlanetarium.load(from_file_name, canvas);
Debug.Assert(rectangle.exists);
from = rectangle.data;
break;
case Shape.SphericalCircle:
default: // FIXME:
optional <SphericalCirclePlanetarium> circle = SphericalCirclePlanetarium.load(from_file_name, radius);
Debug.Assert(circle.exists);
from = circle.data;
break;
}
switch (to_shape)
{
case Shape.Cube:
to = new CubePlanetarium(resolution);
to.convert(from);
to.save(to_file_name);
break;
case Shape.Octahedron:
to = new OctahedronPlanetarium(resolution);
to.convert(from);
to.save(to_file_name);
break;
}
}
}
private static LevelCreatorEditor.CreateShape escape()
{
builder.data.close_shape();
builder = new optional <EquilateralBuilder>();
return(LevelCreatorEditor.draw_initialize);
}
public static optional <BlockCollision> block_collision(CollisionObserver observer, Arc arc, PlanetariaCollider collider, PlanetariaTransform transformation, PlanetariaRigidbody rigidbody)
{
optional <ArcVisitor> arc_visitor = collider.shape.arc_visitor(arc);
if (!arc_visitor.exists)
{
Debug.LogError("This should never happen");
return(new optional <BlockCollision>());
}
Quaternion block_to_world = collider.gameObject.internal_game_object.transform.rotation;
Quaternion world_to_block = Quaternion.Inverse(block_to_world);
Vector3 last_position = world_to_block * rigidbody.get_previous_position();
Vector3 current_position = world_to_block * rigidbody.get_position();
float extrusion = transformation.scale / 2;
optional <Vector3> intersection_point = PlanetariaIntersection.arc_path_intersection(arc, last_position, current_position, extrusion);
if (!intersection_point.exists) // theoretically only happens with moving objects for discrete collision checks
{
// these functions are general inverses of one another, but also serve to constrain/normalize the position to the arc path.
float intersection_angle = arc.position_to_angle(current_position);
if (Mathf.Abs(intersection_angle) <= arc.angle() / 2) // if the intersection is valid
{
intersection_point = arc.position(intersection_angle); // set the collision to the extruded collision point
}
}
if (!intersection_point.exists)
{
Debug.LogError("Research why this happened.");
return(new optional <BlockCollision>());
}
BlockCollision result = new BlockCollision();
float angle = arc.position_to_angle(intersection_point.data);
result.geometry_visitor = ShapeVisitor.geometry_visitor(arc_visitor.data, angle, extrusion, collider.gameObject.internal_game_object.transform);
intersection_point.data = block_to_world * intersection_point.data;
result.distance = Vector3.Angle(intersection_point.data, rigidbody.get_previous_position()) * Mathf.Deg2Rad;
result.overshoot = Vector3.Angle(intersection_point.data, rigidbody.get_position()) * Mathf.Deg2Rad;
result.observer = observer;
result.self = observer.collider();
result.other = collider;
PlanetariaPhysicMaterial self = result.self.material;
PlanetariaPhysicMaterial other = result.other.material;
result.elasticity = PlanetariaPhysics.blend(
self.elasticity, self.elasticity_combine,
other.elasticity, other.elasticity_combine);
result.friction = PlanetariaPhysics.blend(
self.friction, self.friction_combine,
other.friction, other.friction_combine);
result.magnetism =
-(self.magnetism - other.magnetism * self.induced_magnetism_multiplier) *
(other.magnetism - self.magnetism * other.induced_magnetism_multiplier);
return(result);
}
protected override void OnDestroy()
{
cleanup();
shutter = new optional <PlanetariaCameraShutter>(); // deregisters from blink_event
}
