public static float AngleFromAnchor(Vector2 anchorPosition, Vector2 targetPosition, float targetRotation)
{
float angle;
if (Vector3.Distance(targetPosition, anchorPosition) > AnchorEpsilon)
{
Vector3 towardsTarget = (targetPosition - anchorPosition).normalized;
angle = Helpers2D.GetAngle(towardsTarget);
}
else
{
angle = targetRotation;
}
return(angle);
}
protected override void ReAlignAnchors(AnchoredJoint2D joint2D, JointHelpers.AnchorBias alignmentBias)
{
var sliderJoint2D = (SliderJoint2D)joint2D;
//align the angle to the connected anchor
var direction = JointHelpers.GetConnectedAnchorPosition(joint2D) -
JointHelpers.GetMainAnchorPosition(joint2D);
if (direction.magnitude > AnchorEpsilon)
{
var wantedAngle = Helpers2D.GetAngle(direction);
EditorHelpers.RecordUndo("Realign angle", sliderJoint2D);
sliderJoint2D.angle = wantedAngle - sliderJoint2D.transform.eulerAngles.z;
}
}
private void DrawLinesAndDiscs(HingeJoint2D hingeJoint2D, AnchorInfo anchorInfo, JointHelpers.AnchorBias bias)
{
var center = JointHelpers.GetAnchorPosition(hingeJoint2D, bias);
var scale = editorSettings.anchorScale;
var handleSize = HandleUtility.GetHandleSize(center) * scale;
var mainBodyPosition = GetTargetPosition(hingeJoint2D, JointHelpers.AnchorBias.Main);
var connectedBodyPosition = GetTargetPosition(hingeJoint2D, JointHelpers.AnchorBias.Connected);
var settings = SettingsHelper.GetOrCreate <HingeJoint2DSettings>(hingeJoint2D);
if (bias == JointHelpers.AnchorBias.Main)
{
float angleToMain;
if (Vector2.Distance(mainBodyPosition, center) > AnchorEpsilon)
{
angleToMain = Helpers2D.GetAngle(mainBodyPosition - center);
}
else
{
angleToMain = JointHelpers.GetTargetRotation(hingeJoint2D, JointHelpers.AnchorBias.Main);
}
using (new HandleColor(GetAdjustedColor(editorSettings.anchorsToMainBodyColor)))
{
Handles.DrawLine(center,
center + Helpers2D.GetDirection(angleToMain + settings.mainAngleOffset) * handleSize);
}
}
else if (bias == JointHelpers.AnchorBias.Connected)
{
if (hingeJoint2D.connectedBody)
{
float angleToConnected;
if (Vector2.Distance(connectedBodyPosition, center) > AnchorEpsilon)
{
angleToConnected = Helpers2D.GetAngle(connectedBodyPosition - center);
}
else
{
angleToConnected = JointHelpers.GetTargetRotation(hingeJoint2D, JointHelpers.AnchorBias.Connected);
}
using (new HandleColor(GetAdjustedColor(editorSettings.anchorsToConnectedBodyColor)))
{
Handles.DrawLine(center,
center + Helpers2D.GetDirection(angleToConnected + settings.connectedAngleOffset) * handleSize);
}
}
else
{
using (new HandleColor(GetAdjustedColor(editorSettings.anchorsToConnectedBodyColor)))
{
Handles.DrawLine(center, center + Helpers2D.GetDirection(settings.connectedAngleOffset) * handleSize);
}
}
}
if (settings.showDiscs)
{
var sliderControlID = anchorInfo.GetControlID("slider");
if (editorSettings.ringDisplayMode == JointEditorSettings.RingDisplayMode.Always ||
(editorSettings.ringDisplayMode == JointEditorSettings.RingDisplayMode.Hover &&
//if nothing else is hot and we are being hovered, or the anchor's widgets are hot
((GUIUtility.hotControl == 0 && HandleUtility.nearestControl == sliderControlID) ||
GUIUtility.hotControl == sliderControlID))
)
{
using (new HandleColor(GetAdjustedColor(editorSettings.mainRingColor)))
{
Handles.DrawWireDisc(center, Vector3.forward, Vector2.Distance(center, mainBodyPosition));
}
if (hingeJoint2D.connectedBody)
{
using (new HandleColor((editorSettings.connectedRingColor))) {
Handles.DrawWireDisc(center, Vector3.forward,
Vector2.Distance(center,
connectedBodyPosition));
}
}
}
}
HandleUtility.Repaint();
}
private void DrawDistance(T jointWithDistance, AnchorInfo anchorInfo, JointHelpers.AnchorBias bias)
{
if (jointWithDistance == null)
{
return;
}
var otherBias = bias == JointHelpers.AnchorBias.Main
? JointHelpers.AnchorBias.Connected
: JointHelpers.AnchorBias.Main;
var anchorPosition = JointHelpers.GetAnchorPosition(jointWithDistance, bias);
var otherAnchorPosition = JointHelpers.GetAnchorPosition(jointWithDistance, otherBias);
var diff = anchorPosition - otherAnchorPosition;
if (diff.magnitude <= Mathf.Epsilon)
{
diff = Vector2.up * (bias == JointHelpers.AnchorBias.Connected ? 1 : -1);
}
var normalizedDiff = diff.normalized;
JointHelpers.AnchorBias wantedBias;
switch (GetSettings(jointWithDistance).anchorPriority)
{
case JointSettingsWithBias.AnchorPriority.Main:
wantedBias = JointHelpers.AnchorBias.Main;
break;
case JointSettingsWithBias.AnchorPriority.Connected:
wantedBias = JointHelpers.AnchorBias.Connected;
break;
default:
throw new ArgumentOutOfRangeException();
}
if (bias == wantedBias && EditorGUI.actionKey && GUIUtility.hotControl == anchorInfo.GetControlID("slider"))
{
Handles.DrawWireDisc(otherAnchorPosition, Vector3.forward, GetDistance(jointWithDistance));
}
if (bias != wantedBias)
{
var distanceControlID = anchorInfo.GetControlID("distance");
EditorGUI.BeginChangeCheck();
float newDistance;
using (
new HandleColor(isCreatedByTarget
? new Color(1, 1, 1, editorSettings.connectedJointTransparency)
: Color.white)) {
newDistance = EditorHelpers.LineSlider(distanceControlID, otherAnchorPosition,
GetDistance(jointWithDistance), Helpers2D.GetAngle(normalizedDiff), 0.125f, true);
EditorHelpers.DrawThickLine(anchorPosition, otherAnchorPosition + normalizedDiff * newDistance,
Vector2.Distance(anchorPosition, otherAnchorPosition) > newDistance ? 2 : 1, true);
}
if (Event.current.type == EventType.repaint)
{
if (EditorHelpers.IsWarm(distanceControlID) && DragAndDrop.objectReferences.Length == 0)
{
var labelContent =
new GUIContent(string.Format("Distance: {0:0.00}", GetDistance(jointWithDistance)));
var sliderPosition = otherAnchorPosition + normalizedDiff * GetDistance(jointWithDistance);
var fontSize = HandleUtility.GetHandleSize(sliderPosition) * (1f / 64f);
var labelOffset = fontSize * EditorHelpers.FontWithBackgroundStyle.CalcSize(labelContent).y +
fontSize * 20 *
Mathf.Abs(Mathf.Cos(Mathf.Deg2Rad * Helpers2D.GetAngle(normalizedDiff)));
EditorHelpers.OverlayLabel((Vector3)sliderPosition + (Camera.current.transform.up * labelOffset),
labelContent, EditorHelpers.FontWithBackgroundStyle);
}
}
if (EditorGUI.EndChangeCheck())
{
using (new Modification("Change Distance", jointWithDistance)) {
if (newDistance < 0)
{
SetDistance(jointWithDistance, 0f);
}
else
{
var distanceBetweenAnchors = Vector2.Distance(otherAnchorPosition, anchorPosition);
SetDistance(jointWithDistance,
EditorGUI.actionKey && Mathf.Abs(newDistance - distanceBetweenAnchors) <
HandleUtility.GetHandleSize(anchorPosition) * 0.125f
? distanceBetweenAnchors
: newDistance);
}
}
}
DistanceContext(jointWithDistance, distanceControlID);
}
}
private static void DrawLimitSlider(SliderJoint2D sliderJoint2D, int limitControlID, Vector2 anchorPosition,
Vector2 direction, IEnumerable <Vector2> snapList, Limit limit)
{
EditorGUI.BeginChangeCheck();
float val;
var limits2D = sliderJoint2D.limits;
switch (limit)
{
case Limit.Min:
val = limits2D.min;
break;
case Limit.Max:
val = limits2D.max;
break;
default:
throw new ArgumentOutOfRangeException("limit");
}
var newLimit = EditorHelpers.LineSlider(limitControlID, anchorPosition,
val,
Helpers2D.GetAngle(direction), 0.125f, false, limit == Limit.Min);
if (!EditorGUI.EndChangeCheck())
{
return;
}
if (snapList != null)
{
var limitSnapList = new List <Vector2>(snapList);
switch (limit)
{
case Limit.Min:
limitSnapList.Add(anchorPosition + direction * limits2D.max);
break;
case Limit.Max:
limitSnapList.Add(anchorPosition + direction * limits2D.min);
break;
default:
throw new ArgumentOutOfRangeException("limit");
}
var limitGUIPosition =
HandleUtility.WorldToGUIPoint(anchorPosition + direction * newLimit);
foreach (
var snapPosition in
from snapPosition in limitSnapList
let snapGUIPosition = HandleUtility.WorldToGUIPoint(snapPosition)
where Vector2.Distance(limitGUIPosition, snapGUIPosition) < 10
select snapPosition)
{
newLimit = Helpers2D.DistanceAlongLine(new Ray(anchorPosition, direction),
snapPosition);
}
}
EditorHelpers.RecordUndo("Change slider limit", sliderJoint2D);
switch (limit)
{
case Limit.Min:
limits2D.min = newLimit;
break;
case Limit.Max:
limits2D.max = newLimit;
break;
default:
throw new ArgumentOutOfRangeException("limit");
}
sliderJoint2D.limits = limits2D;
}
private void LimitWidget(SliderJoint2D sliderJoint2D, AnchorInfo anchorInfo, JointHelpers.AnchorBias bias,
float worldAngle)
{
var anchorPosition = JointHelpers.GetAnchorPosition(sliderJoint2D, bias);
var oppositeBias = JointHelpers.GetOppositeBias(bias);
var oppositeAnchorPosition = JointHelpers.GetAnchorPosition(sliderJoint2D, oppositeBias);
var direction = Helpers2D.GetDirection(worldAngle);
if (bias == JointHelpers.AnchorBias.Connected)
{
direction *= -1f;
}
var delta = oppositeAnchorPosition - anchorPosition;
var angleDiff = Mathf.DeltaAngle(Helpers2D.GetAngle(delta), worldAngle);
Vector2 rotatedDelta = Helpers2D.Rotate(angleDiff) * delta;
var wantedOppositeAnchorPosition = anchorPosition + rotatedDelta;
var wantedOppositeAnchorPosition2 = anchorPosition - rotatedDelta;
var minLimitControlID = anchorInfo.GetControlID("minLimit");
var maxLimitControlID = anchorInfo.GetControlID("maxLimit");
LimitContext(sliderJoint2D, minLimitControlID, Limit.Min);
LimitContext(sliderJoint2D, maxLimitControlID, Limit.Max);
var limitColor = sliderJoint2D.limits.min > sliderJoint2D.limits.max
? editorSettings.incorrectLimitsColor
: editorSettings.correctLimitsColor;
if (isCreatedByTarget)
{
limitColor.a *= editorSettings.connectedJointTransparency;
}
using (new HandleColor(limitColor)) {
Handles.DrawLine(anchorPosition + direction * sliderJoint2D.limits.min,
anchorPosition + direction * sliderJoint2D.limits.max);
if (Event.current.type == EventType.repaint)
{
float fontSize;
if (EditorHelpers.IsWarm(minLimitControlID) && DragAndDrop.objectReferences.Length == 0)
{
var labelContent = new GUIContent(string.Format("Min: {0:0.00}", sliderJoint2D.limits.min));
var sliderPosition = anchorPosition + (direction) * (sliderJoint2D.limits.min);
fontSize = HandleUtility.GetHandleSize(sliderPosition) * ONE_OVER64;
var labelOffset = fontSize * EditorHelpers.FontWithBackgroundStyle.CalcSize(labelContent).y +
fontSize * 20 *
Mathf.Abs(Mathf.Cos(Mathf.Deg2Rad * Helpers2D.GetAngle(direction)));
EditorHelpers.OverlayLabel((Vector3)sliderPosition + (Camera.current.transform.up * labelOffset),
labelContent, EditorHelpers.FontWithBackgroundStyle);
}
if (EditorHelpers.IsWarm(maxLimitControlID) && DragAndDrop.objectReferences.Length == 0)
{
var labelContent = new GUIContent(string.Format("Max: {0:0.00}", sliderJoint2D.limits.max));
var sliderPosition = anchorPosition + (direction) * (sliderJoint2D.limits.max);
fontSize = HandleUtility.GetHandleSize(sliderPosition) * ONE_OVER64;
var labelOffset = fontSize * EditorHelpers.FontWithBackgroundStyle.CalcSize(labelContent).y +
fontSize * 20 *
Mathf.Abs(Mathf.Cos(Mathf.Deg2Rad * Helpers2D.GetAngle(direction)));
EditorHelpers.OverlayLabel((Vector3)sliderPosition + (Camera.current.transform.up * labelOffset),
labelContent, EditorHelpers.FontWithBackgroundStyle);
}
}
if (GUIUtility.hotControl == minLimitControlID ||
GUIUtility.hotControl == maxLimitControlID)
{
using (
new HandleColor(new Color(1, 1, 1,
0.25f * (isCreatedByTarget ? editorSettings.connectedJointTransparency : 1.0f)))) {
var handleSize = HandleUtility.GetHandleSize(wantedOppositeAnchorPosition) * ONE_OVER16;
Handles.DrawLine(wantedOppositeAnchorPosition - direction * handleSize,
wantedOppositeAnchorPosition + direction * handleSize);
handleSize = HandleUtility.GetHandleSize(wantedOppositeAnchorPosition2) * ONE_OVER16;
Handles.DrawLine(wantedOppositeAnchorPosition2 - direction * handleSize,
wantedOppositeAnchorPosition2 + direction * handleSize);
Handles.DrawWireArc(anchorPosition, Vector3.forward, wantedOppositeAnchorPosition, 360,
Vector2.Distance(wantedOppositeAnchorPosition, anchorPosition));
}
}
var actionKey = EditorGUI.actionKey;
List <Vector2> snapList = null;
if (actionKey)
{
snapList = new List <Vector2> {
anchorPosition,
wantedOppositeAnchorPosition,
wantedOppositeAnchorPosition2
};
}
var minLimitColor = editorSettings.minLimitColor;
var maxLimitColor = editorSettings.maxLimitColor;
if (isCreatedByTarget)
{
minLimitColor.a *= editorSettings.connectedJointTransparency;
maxLimitColor.a *= editorSettings.connectedJointTransparency;
}
using (new HandleColor(minLimitColor)) {
DrawLimitSlider(sliderJoint2D, minLimitControlID, anchorPosition, direction, snapList, Limit.Min);
}
using (new HandleColor(maxLimitColor)) {
DrawLimitSlider(sliderJoint2D, maxLimitControlID, anchorPosition, direction, snapList, Limit.Max);
}
}
}
protected void DrawAngleWidget(TJointType joint2D, int controlID)
{
var joint2DSettings = GetSettings(joint2D);
var worldAngle = joint2D.transform.eulerAngles.z + GetAngle(joint2D);
HandleDragDrop(controlID, joint2D, joint2DSettings);
EditorGUI.BeginChangeCheck();
JointHelpers.AnchorBias bias;
if (joint2DSettings.anchorPriority == JointSettingsWithBias.AnchorPriority.Main)
{
bias = JointHelpers.AnchorBias.Main;
}
else
{
bias = JointHelpers.AnchorBias.Connected;
}
var oppositeBias = JointHelpers.GetOppositeBias(bias);
var angleWidgetPosition = JointHelpers.GetAnchorPosition(joint2D, bias);
var otherAnchorPosition = JointHelpers.GetAnchorPosition(joint2D, oppositeBias);
var offsetToOther = otherAnchorPosition - angleWidgetPosition;
var newAngle = LineAngleHandle(controlID, worldAngle, angleWidgetPosition, 0.5f, 2);
var mousePosition = Event.current.mousePosition;
EditorHelpers.ContextClick(controlID, () => {
var menu = new GenericMenu();
AddEditAngleMenuItem(joint2D, menu, mousePosition);
menu.ShowAsContext();
});
if (!EditorGUI.EndChangeCheck())
{
return;
}
var snapped = false;
if (EditorGUI.actionKey)
{
var handleSize = HandleUtility.GetHandleSize(angleWidgetPosition);
var mousePosition2D = Helpers2D.GUIPointTo2DPosition(Event.current.mousePosition);
var currentAngleRay = new Ray(angleWidgetPosition, Helpers2D.GetDirection(newAngle));
var mousePositionProjectedToAngle = Helpers2D.ClosestPointToRay(currentAngleRay, mousePosition2D);
var directionsToSnapTo = new List <Vector2> {
(GetTargetPosition(joint2D, bias) - angleWidgetPosition).normalized
};
if (!joint2DSettings.lockAnchors)
{
directionsToSnapTo.Insert(0, offsetToOther.normalized);
}
if (joint2D.connectedBody)
{
directionsToSnapTo.Add(
(GetTargetPosition(joint2D, oppositeBias) - angleWidgetPosition)
.normalized);
}
foreach (var direction in directionsToSnapTo)
{
var rayTowardsDirection = new Ray(angleWidgetPosition, direction);
var closestPointTowardsDirection = Helpers2D.ClosestPointToRay(rayTowardsDirection,
mousePositionProjectedToAngle);
if (Vector2.Distance(closestPointTowardsDirection, mousePositionProjectedToAngle) <
handleSize * 0.125f)
{
var currentDirection = Helpers2D.GetDirection(newAngle);
var closestPositionToDirection =
Helpers2D.ClosestPointToRay(rayTowardsDirection,
angleWidgetPosition + currentDirection);
snapped = true;
newAngle = Helpers2D.GetAngle(closestPositionToDirection - angleWidgetPosition);
break;
}
}
}
var wantedAngle = newAngle - joint2D.transform.eulerAngles.z;
if (!snapped)
{
wantedAngle = Handles.SnapValue(wantedAngle, editorSettings.snapAngle);
}
EditorHelpers.RecordUndo("Alter Angle", joint2D);
if (joint2DSettings.lockAnchors)
{
var angleDelta = Mathf.DeltaAngle(GetAngle(joint2D), wantedAngle);
JointHelpers.SetWorldAnchorPosition(joint2D,
angleWidgetPosition + (Vector2)(Helpers2D.Rotate(angleDelta) * offsetToOther), oppositeBias);
}
SetAngle(joint2D, wantedAngle);
}