public void RenderMarkers(DisposableIterator apsis_iterator,
MapObject.ObjectType type,
NodeSource source,
Vessel vessel,
CelestialBody celestial)
{
for (; !apsis_iterator.IteratorAtEnd();
apsis_iterator.IteratorIncrement())
{
QP apsis = apsis_iterator.IteratorGetDiscreteTrajectoryQP();
MapNodeProperties node_properties;
node_properties.object_type = type;
node_properties.vessel = vessel;
node_properties.celestial = celestial;
node_properties.world_position = (Vector3d)apsis.q;
node_properties.velocity = (Vector3d)apsis.p;
node_properties.source = source;
node_properties.time = apsis_iterator.IteratorGetDiscreteTrajectoryTime();
if (pool_index_ == nodes_.Count)
{
nodes_.Add(MakePoolNode());
}
else if (properties_[nodes_[pool_index_]].object_type != type)
{
// Do not reuse a node for different types, as this results in
// overlapping labels on KSP 1.3, e.g. a closest approach marker that
// also says "Ap" and "DN".
nodes_[pool_index_].Terminate();
properties_.Remove(nodes_[pool_index_]);
nodes_[pool_index_] = MakePoolNode();
}
properties_[nodes_[pool_index_++]] = node_properties;
}
}
public void RenderMarkers(DisposableIterator apsis_iterator,
MapObject.ObjectType type,
NodeSource source,
Vessel vessel,
CelestialBody celestial)
{
// We render at most 64 markers of one type and one provenance (e.g., at
// most 64 perilunes for the prediction of the active vessel). This is
// more than is readable, and keeps the size of the map node pool under
// control.
for (int i = 0; i < 64 && !apsis_iterator.IteratorAtEnd();
++i, apsis_iterator.IteratorIncrement())
{
QP apsis = apsis_iterator.IteratorGetDiscreteTrajectoryQP();
MapNodeProperties node_properties = new MapNodeProperties {
visible = true,
object_type = type,
vessel = vessel,
celestial = celestial,
world_position = (Vector3d)apsis.q,
velocity = (Vector3d)apsis.p,
source = source,
time = apsis_iterator.IteratorGetDiscreteTrajectoryTime()
};
if (pool_index_ == nodes_.Count)
{
nodes_.Add(MakePoolNode());
}
else if (properties_[nodes_[pool_index_]].object_type != type ||
properties_[nodes_[pool_index_]].source != source)
{
// KSP attaches labels to its map nodes, but never detaches them.
// If the node changes type, we end up with an arbitrary combination of
// labels Ap, Pe, AN, DN.
// If the node changes source, the colour of the icon label is not
// updated to match the icon (making it unreadable in some cases).
// Recreating the node entirely takes a long time (approximately
// 𝑁 * 70 μs, where 𝑁 is the total number of map nodes in existence),
// instead we manually get rid of the labels.
foreach (var component in
nodes_[pool_index_].transform.GetComponentsInChildren <
TMPro.TextMeshProUGUI>())
{
if (component.name == "iconLabel(Clone)")
{
UnityEngine.Object.Destroy(component.gameObject);
}
}
// Ensure that KSP thinks the type changed, and reattaches icon
// labels next time around, otherwise we might end up with no labels.
// Null nodes do not have a label, so inducing a type change through
// Null does not result in spurious labels.
properties_[nodes_[pool_index_]].object_type =
MapObject.ObjectType.Null;
nodes_[pool_index_].NodeUpdate();
}
properties_[nodes_[pool_index_++]] = node_properties;
}
}
public static void PlotRP2Lines(DisposableIterator rp2_lines_iterator,
UnityEngine.Color colour,
Style style)
{
UnityEngine.GL.Color(colour);
// First evaluate the total size of the lines.
int size = 0;
for (;
!rp2_lines_iterator.IteratorAtEnd();
rp2_lines_iterator.IteratorIncrement())
{
using (DisposableIterator rp2_line_iterator =
rp2_lines_iterator.IteratorGetRP2LinesIterator()) {
size += rp2_line_iterator.IteratorSize();
}
}
// Reset the iterator and do the actual plotting.
rp2_lines_iterator.IteratorReset();
int index = 0;
for (;
!rp2_lines_iterator.IteratorAtEnd();
rp2_lines_iterator.IteratorIncrement())
{
using (DisposableIterator rp2_line_iterator =
rp2_lines_iterator.IteratorGetRP2LinesIterator()) {
XY?previous_rp2_point = null;
for (;
!rp2_line_iterator.IteratorAtEnd();
rp2_line_iterator.IteratorIncrement())
{
XY current_rp2_point = ToScreen(
rp2_line_iterator.IteratorGetRP2LineXY());
if (previous_rp2_point.HasValue)
{
if (style == Style.Faded)
{
colour.a = 1 - (float)(4 * index) / (float)(5 * size);
UnityEngine.GL.Color(colour);
}
if (style != Style.Dashed || index % 2 == 1)
{
UnityEngine.GL.Vertex3((float)previous_rp2_point.Value.x,
(float)previous_rp2_point.Value.y,
0);
UnityEngine.GL.Vertex3((float)current_rp2_point.x,
(float)current_rp2_point.y,
0);
}
}
previous_rp2_point = current_rp2_point;
++index;
}
}
}
}
public void RenderMarkers(DisposableIterator apsis_iterator,
MapObject.ObjectType type,
NodeSource source,
ReferenceFrameSelector reference_frame)
{
MapObject associated_map_object;
UnityEngine.Color colour;
switch (type)
{
case MapObject.ObjectType.Apoapsis:
case MapObject.ObjectType.Periapsis:
CelestialBody fixed_body = reference_frame.selected_celestial;
associated_map_object = fixed_body.MapObject;
colour = fixed_body.orbit == null
? XKCDColors.SunshineYellow
: fixed_body.orbitDriver.Renderer.nodeColor;
break;
case MapObject.ObjectType.ApproachIntersect:
associated_map_object = reference_frame.target_override.mapObject;
colour = XKCDColors.Chartreuse;
break;
case MapObject.ObjectType.AscendingNode:
case MapObject.ObjectType.DescendingNode:
if (!reference_frame.target_override &&
(reference_frame.frame_type ==
ReferenceFrameSelector.FrameType.BODY_CENTRED_NON_ROTATING ||
reference_frame.frame_type ==
ReferenceFrameSelector.FrameType.BODY_SURFACE))
{
// In one-body frames, the apsides are shown with the colour of the
// body.
// The nodes are with respect to the equator, rather than with respect
// to an orbit. We show the nodes in a different (but arbitrary)
// colour so that they can be distinguished easily.
associated_map_object = reference_frame.selected_celestial.MapObject;
colour = XKCDColors.Chartreuse;
}
else
{
// In two-body frames, if apsides are shown, they are shown with the
// colour of the secondary (or in XKCD chartreuse if the secondary is
// a vessel).
// The nodes are with respect to the orbit of the secondary around the
// primary. We show the nodes with the colour of the primary.
CelestialBody primary = reference_frame.target_override
? reference_frame.selected_celestial
: reference_frame.selected_celestial.referenceBody;
associated_map_object = primary.MapObject;
colour = primary.orbit == null
? XKCDColors.SunshineYellow
: primary.orbitDriver.Renderer.nodeColor;
}
break;
default:
throw Log.Fatal($"Unexpected type {type}");
}
colour.a = 1;
for (int i = 0; i < MaxRenderedNodes && !apsis_iterator.IteratorAtEnd();
++i, apsis_iterator.IteratorIncrement())
{
QP apsis = apsis_iterator.IteratorGetDiscreteTrajectoryQP();
MapNodeProperties node_properties = new MapNodeProperties {
visible = true,
object_type = type,
colour = colour,
reference_frame = reference_frame,
world_position = (Vector3d)apsis.q,
velocity = (Vector3d)apsis.p,
source = source,
time = apsis_iterator.IteratorGetDiscreteTrajectoryTime(),
associated_map_object = associated_map_object,
};
if (type == MapObject.ObjectType.Periapsis &&
reference_frame.selected_celestial.GetAltitude(
node_properties.world_position) < 0)
{
node_properties.object_type = MapObject.ObjectType.PatchTransition;
node_properties.colour = XKCDColors.Orange;
}
if (pool_index_ == nodes_.Count)
{
nodes_.Add(MakePoolNode());
}
else if (properties_[nodes_[pool_index_]].object_type !=
node_properties.object_type ||
properties_[nodes_[pool_index_]].colour !=
node_properties.colour)
{
// KSP attaches labels to its map nodes, but never detaches them.
// If the node changes type, we end up with an arbitrary combination of
// labels Ap, Pe, AN, DN.
// Similarly, if the node changes colour, the colour of the icon label
// is not updated to match the icon (making it unreadable in some
// cases). Recreating the node entirely takes a long time
// (approximately 𝑁 * 70 μs, where 𝑁 is the total number of map nodes
// in existence), instead we manually get rid of the labels.
foreach (var component in
nodes_[pool_index_].transform.GetComponentsInChildren <
TMPro.TextMeshProUGUI>())
{
if (component.name == "iconLabel(Clone)")
{
UnityEngine.Object.Destroy(component.gameObject);
}
}
// Ensure that KSP thinks the type changed, and reattaches icon
// labels next time around, otherwise we might end up with no labels.
// Null nodes do not have a label, so inducing a type change through
// Null does not result in spurious labels. Note that the type is
// updated only if the node is visible.
properties_[nodes_[pool_index_]].visible = true;
properties_[nodes_[pool_index_]].object_type =
MapObject.ObjectType.Null;
nodes_[pool_index_].NodeUpdate();
}
properties_[nodes_[pool_index_++]] = node_properties;
}
}
public void RenderMarkers(DisposableIterator apsis_iterator,
Provenance provenance,
ReferenceFrameSelector reference_frame)
{
if (!nodes_.ContainsKey(provenance))
{
nodes_.Add(provenance, new SingleProvenancePool());
}
var pool = nodes_[provenance];
MapObject associated_map_object;
UnityEngine.Color colour;
switch (provenance.type)
{
case MapObject.ObjectType.Apoapsis:
case MapObject.ObjectType.Periapsis:
CelestialBody fixed_body = reference_frame.Centre();
associated_map_object = fixed_body.MapObject;
colour = fixed_body.orbit == null
? XKCDColors.SunshineYellow
: fixed_body.orbitDriver.Renderer.nodeColor;
break;
case MapObject.ObjectType.ApproachIntersect:
associated_map_object = reference_frame.target.mapObject;
colour = XKCDColors.Chartreuse;
break;
case MapObject.ObjectType.AscendingNode:
case MapObject.ObjectType.DescendingNode:
if (reference_frame.Centre() == null)
{
// In two-body frames, if apsides are shown, they are shown with the
// colour of the secondary (or in XKCD chartreuse if the secondary is
// a vessel).
// The nodes are with respect to the orbit of the secondary around the
// primary. We show the nodes with the colour of the primary.
CelestialBody primary = reference_frame.OrientingBody();
associated_map_object = primary.MapObject;
colour = primary.orbit == null
? XKCDColors.SunshineYellow
: primary.orbitDriver.Renderer.nodeColor;
}
else
{
// In one-body frames, the apsides are shown with the colour of the
// body.
// The nodes are with respect to the equator, rather than with respect
// to an orbit. We show the nodes in a different (but arbitrary)
// colour so that they can be distinguished easily.
associated_map_object = reference_frame.Centre().MapObject;
colour = XKCDColors.Chartreuse;
}
break;
default:
throw Log.Fatal($"Unexpected type {provenance.type}");
}
colour.a = 1;
for (int i = 0;
i < MaxNodesPerProvenance && !apsis_iterator.IteratorAtEnd();
++i, apsis_iterator.IteratorIncrement())
{
QP apsis = apsis_iterator.IteratorGetDiscreteTrajectoryQP();
MapNodeProperties node_properties = new MapNodeProperties {
visible = true,
object_type = provenance.type,
colour = colour,
reference_frame = reference_frame,
world_position = (Vector3d)apsis.q,
velocity = (Vector3d)apsis.p,
source = provenance.source,
time = apsis_iterator.IteratorGetDiscreteTrajectoryTime(),
associated_map_object = associated_map_object,
};
if (provenance.type == MapObject.ObjectType.Periapsis &&
reference_frame.Centre().GetAltitude(
node_properties.world_position) < 0)
{
node_properties.object_type = MapObject.ObjectType.PatchTransition;
node_properties.colour = XKCDColors.Orange;
}
if (pool.nodes_used == pool.nodes.Count)
{
pool.nodes.Add(MakePoolNode());
}
properties_[pool.nodes[pool.nodes_used++]] = node_properties;
}
}
