public override void OnInspectorGUI()
{
GUI.changed = false;
GravityEngine gravityEngine = (GravityEngine)target;
float massScale = gravityEngine.massScale;
float timeScale = gravityEngine.timeScale;
float lengthScale = gravityEngine.lengthScale;
float physToWorldFactor = gravityEngine.physToWorldFactor;
bool optimizeMassless = gravityEngine.optimizeMassless;
bool detectNbodies = gravityEngine.detectNbodies;
bool evolveAtStart = gravityEngine.evolveAtStart;
bool scaling = gravityEngine.editorShowScale;
bool showAdvanced = gravityEngine.editorShowAdvanced;
bool showTrajectory = gravityEngine.editorShowTrajectory;
bool cmFoldout = gravityEngine.editorCMfoldout;
bool mapToScene = gravityEngine.mapToScene;
bool trajectoryPrediction = gravityEngine.trajectoryPrediction;
float trajectoryTime = gravityEngine.trajectoryTime;
GameObject trajCanvas = gravityEngine.trajectoryCanvas;
GameObject markerParent = gravityEngine.markerParent;
float computeFactor = gravityEngine.trajectoryComputeFactor;
int stepsPerFrame = gravityEngine.stepsPerFrame;
int particleStepsPerFrame = gravityEngine.particleStepsPerFrame;
GravityEngine.Algorithm algorithm = GravityEngine.Algorithm.LEAPFROG;
ForceChooser.Forces force = ForceChooser.Forces.Gravity;
GravityScaler.Units units = GravityScaler.Units.DIMENSIONLESS;
EditorGUIUtility.labelWidth = 200;
mapToScene = EditorGUILayout.Toggle(new GUIContent("Use Transform to Reposition", mapTip), mapToScene);
EditorGUIUtility.labelWidth = 150;
// SCALING
scaling = EditorGUILayout.Foldout(scaling, "Scaling");
if (scaling)
{
units =
(GravityScaler.Units)EditorGUILayout.EnumPopup(new GUIContent("Units", unitsTip), gravityEngine.units);
EditorGUILayout.LabelField("Scaling values change when <ENTER> ispressed.");
switch (units)
{
case GravityScaler.Units.DIMENSIONLESS:
// only have mass scale in DL case
EditorGUILayout.LabelField("Use mass scale to control scene speed.");
EditorGUILayout.LabelField("(More massive = faster)");
massScale = EditorGUILayout.DelayedFloatField(new GUIContent("Mass Scale", mTip), gravityEngine.massScale);
break;
case GravityScaler.Units.SI:
// no mass scale is controlled by time exclusivly
EditorGUILayout.LabelField("m/kg/sec.");
// meters per Unity unit in the case of meters
lengthScale = EditorGUILayout.DelayedFloatField(new GUIContent("Unity unit per m", timeTip), gravityEngine.lengthScale);
timeScale = EditorGUILayout.DelayedFloatField(new GUIContent("Game sec. per sec.", timeTip), gravityEngine.timeScale);
break;
case GravityScaler.Units.ORBITAL:
EditorGUILayout.LabelField("km/1E24 kg/hr");
// Express in km per Unity unit km/U
lengthScale = EditorGUILayout.DelayedFloatField(new GUIContent("Unity unit per km", timeTip), gravityEngine.lengthScale);
timeScale = EditorGUILayout.DelayedFloatField(new GUIContent("Game sec. per hour", timeTip), gravityEngine.timeScale);
break;
case GravityScaler.Units.SOLAR:
EditorGUILayout.LabelField("AU/1E24 kg/year");
lengthScale = EditorGUILayout.DelayedFloatField(new GUIContent("Unity unit per AU", timeTip), gravityEngine.lengthScale);
timeScale = EditorGUILayout.DelayedFloatField(new GUIContent("Game Sec per year", timeTip), gravityEngine.timeScale);
break;
}
}
// TRAJECTORY PREDICTION
showTrajectory = EditorGUILayout.Foldout(showTrajectory, "Trajectory Prediction");
if (showTrajectory)
{
trajectoryPrediction = EditorGUILayout.Toggle(new GUIContent("Trajectory Prediction", trajTip), trajectoryPrediction);
trajectoryTime = EditorGUILayout.FloatField(new GUIContent("Trajectory Time", trajTimeTip), trajectoryTime);
computeFactor = EditorGUILayout.FloatField(new GUIContent("Re-computes per frame)", trajResetTip), computeFactor);
trajCanvas = (GameObject)EditorGUILayout.ObjectField(new GUIContent("Canvas for Text (optional)", trajCanvasTip),
trajCanvas, typeof(GameObject), true);
markerParent = (GameObject)EditorGUILayout.ObjectField(new GUIContent("Time Marker Parent (optional)", markerTip),
markerParent, typeof(GameObject), true);
}
// ADVANCED
showAdvanced = EditorGUILayout.Foldout(showAdvanced, "Advanced");
if (showAdvanced)
{
algorithm =
(GravityEngine.Algorithm)EditorGUILayout.EnumPopup(new GUIContent("Algorithm", algoTip), gravityEngine.algorithm);
// Force selection is tangled with choice of integrator and scale - so needs to be here
force =
(ForceChooser.Forces)EditorGUILayout.EnumPopup(new GUIContent("Force", forceTip), gravityEngine.force);
if (force == ForceChooser.Forces.Custom)
{
IForceDelegate force_delegate = gravityEngine.GetComponent <IForceDelegate>();
if (force_delegate == null)
{
EditorGUILayout.LabelField(" Attach a Force Delegate to this object.", EditorStyles.boldLabel);
}
else
{
EditorGUILayout.LabelField(" Force delegate: " + force_delegate.GetType());
}
}
if (force != ForceChooser.Forces.Gravity)
{
EditorGUILayout.LabelField(" Note: Orbit predictors assume Newtonian gravity");
EditorGUILayout.LabelField(" They are not accurate for other forces.");
}
optimizeMassless = EditorGUILayout.Toggle(new GUIContent("Optimize Massless Bodies", mlessTip),
gravityEngine.optimizeMassless);
detectNbodies = EditorGUILayout.Toggle(new GUIContent("Automatically Add NBody objects", autoAddTip), gravityEngine.detectNbodies);
evolveAtStart = EditorGUILayout.Toggle(new GUIContent("Evolve at Start", autoStartTip), gravityEngine.evolveAtStart);
physToWorldFactor = EditorGUILayout.FloatField(new GUIContent("Physics to World Scale", phyWTip), gravityEngine.physToWorldFactor);
EditorGUILayout.LabelField("Steps per frame:");
stepsPerFrame = EditorGUILayout.IntField(new GUIContent(" Massive Bodies", stepTip), stepsPerFrame);
particleStepsPerFrame = EditorGUILayout.IntField(new GUIContent(" Particles", pstepTip), particleStepsPerFrame);
}
// Switch bodies list on/off based on option
if (!gravityEngine.detectNbodies)
{
// use native Inspector look & feel for bodies object
EditorGUILayout.LabelField("Control Nbody in following gameObjects (and children)", EditorStyles.boldLabel);
SerializedProperty bodiesProp = serializedObject.FindProperty("bodies");
EditorGUI.BeginChangeCheck();
EditorGUILayout.PropertyField(bodiesProp, true);
if (EditorGUI.EndChangeCheck())
{
serializedObject.ApplyModifiedProperties();
}
}
else
{
EditorGUILayout.LabelField("NBody objects will be detected automatically", EditorStyles.boldLabel);
}
// Show the CM and the velocity of the CM
cmFoldout = EditorGUILayout.Foldout(cmFoldout, "Center of Mass Info");
if (cmFoldout)
{
EditorGUILayout.LabelField("Center of Mass:" + gravityEngine.GetWorldCenterOfMass());
EditorGUILayout.LabelField("CM Velocity:" + gravityEngine.GetWorldCenterOfMassVelocity());
}
// Checking the Event type lets us update after Undo and Redo commands.
// A redo updates _lengthScale but does not run the setter
if (Event.current.type == EventType.ExecuteCommand &&
Event.current.commandName == "UndoRedoPerformed")
{
// explicitly re-set so setter code will run.
gravityEngine.lengthScale = lengthScale;
}
if (GUI.changed)
{
Undo.RecordObject(gravityEngine, "GE Change");
gravityEngine.mapToScene = mapToScene;
gravityEngine.timeScale = timeScale;
gravityEngine.massScale = massScale;
// This runs a setter in GE that will do a rescale of the scene if necessary
gravityEngine.lengthScale = lengthScale;
gravityEngine.units = units;
gravityEngine.physToWorldFactor = physToWorldFactor;
gravityEngine.optimizeMassless = optimizeMassless;
gravityEngine.detectNbodies = detectNbodies;
gravityEngine.editorShowTrajectory = showTrajectory;
gravityEngine.trajectoryPrediction = trajectoryPrediction;
gravityEngine.trajectoryTime = trajectoryTime;
gravityEngine.trajectoryCanvas = trajCanvas;
gravityEngine.markerParent = markerParent;
gravityEngine.trajectoryComputeFactor = computeFactor;
gravityEngine.algorithm = algorithm;
gravityEngine.force = force;
gravityEngine.evolveAtStart = evolveAtStart;
gravityEngine.editorShowScale = scaling;
gravityEngine.editorShowAdvanced = showAdvanced;
gravityEngine.editorCMfoldout = cmFoldout;
gravityEngine.stepsPerFrame = stepsPerFrame;
gravityEngine.particleStepsPerFrame = particleStepsPerFrame;
EditorUtility.SetDirty(gravityEngine);
}
}