public static void DrawLength(UnityEngine.Vector3 from, UnityEngine.Vector3 to, float forceValue)
{
var prevColor = SceneHandles.color;
SceneHandles.color = SceneHandles.StateColor(SceneHandles.measureColor);
var invMatrix = SceneHandles.inverseMatrix;
var camera = UnityEngine.Camera.current;
var camPos = invMatrix.MultiplyPoint(camera.transform.position);
var camDir = (SceneHandleUtility.ProjectPointLine(camPos, from, to) - camPos).normalized;
var delta = (to - from);
var length = delta.magnitude;
var forward = delta / length;
var right = Vector3.Cross(forward, camDir);
var fromSize = UnityEditor.HandleUtility.GetHandleSize(from);
var toSize = UnityEditor.HandleUtility.GetHandleSize(to);
var center = (to + from) * 0.5f;
SceneHandles.DrawLine(from, to);
DrawFlatArrow(from, forward, camDir, fromSize * 0.2f);
DrawFlatArrow(to, -forward, camDir, toSize * 0.2f);
// SceneHandles.DrawLine(from - right, from + right);
// SceneHandles.DrawLine(to - right, to + right);
DrawUnitLabel(center, right, 2, forceValue);
SceneHandles.color = prevColor;
}
public static void DrawFlatArrow(UnityEngine.Vector3 center, UnityEngine.Vector3 direction, float handleSize)
{
var invMatrix = SceneHandles.inverseMatrix;
var camera = UnityEngine.Camera.current;
var camPos = invMatrix.MultiplyPoint(camera.transform.position);
var camDir = (SceneHandleUtility.ProjectPointLine(camPos, center, center + direction) - camPos).normalized;
DrawFlatArrow(center, direction, camDir, handleSize);
}
public static void DrawLengths(Bounds bounds, Axes activeAxes = Axes.XYZ, Axes visibleAxes = Axes.XYZ, Axes selectedAxes = Axes.None)
{
// TODO: what if camera is inside of bounds?
// TODO: what if length is outside of camera, but other option is inside of camera view?
// TODO: don't make the side lines move around when resizing, be smarter about handlesize
// -> maybe limit the projected line to the screen?
var invMatrix = SceneHandles.inverseMatrix;
var prevColor = SceneHandles.color;
var color = prevColor;
var color2 = color;
color2.a *= 0.5f;
var camera = UnityEngine.Camera.current;
var camPos = invMatrix.MultiplyPoint(camera.transform.position);
var lengthX = bounds.size.x;
var lengthY = bounds.size.y;
var lengthZ = bounds.size.z;
var absLengthX = Mathf.Abs(lengthX);
var absLengthY = Mathf.Abs(lengthY);
var absLengthZ = Mathf.Abs(lengthZ);
var delta = (bounds.center - camPos) * 2;
var dotX = delta.x < 0 ? -1 : 1;
var dotY = delta.y < 0 ? -1 : 1;
var dotZ = delta.z < 0 ? -1 : 1;
var insideX = (delta.x >= -absLengthX && delta.x <= absLengthX);
var insideY = (delta.y >= -absLengthY && delta.y <= absLengthY);
var insideZ = (delta.z >= -absLengthZ && delta.z <= absLengthZ);
bool showX = !(insideY && insideZ);
bool showY = !(insideX && insideZ);
bool showZ = !(insideX && insideY);
Vector3 fromX, toX;
Vector3 fromY, toY;
Vector3 fromZ, toZ;
var min = bounds.min;
var max = bounds.max;
// min/max of bounds can potentially be inverted
min.x = Mathf.Min(min.x, max.x);
min.y = Mathf.Min(min.y, max.y);
min.z = Mathf.Min(min.z, max.z);
fromX = min; toX = fromX + new Vector3(absLengthX, 0, 0);
fromY = min; toY = fromY + new Vector3(0, absLengthY, 0);
fromZ = min; toZ = fromZ + new Vector3(0, 0, absLengthZ);
var signZ = Vector3.one;
if (showZ)
{
bool swapX = (dotX > 0) ^ insideY;
bool swapY = (dotY < 0) ^ insideY;
signZ.x = swapX ? 1 : -1; signZ.y = swapY ? 1 : -1;
var ofsX = swapX ? absLengthX : 0; fromZ.x += ofsX; toZ.x += ofsX;
var ofsY = swapY ? absLengthY : 0; fromZ.y += ofsY; toZ.y += ofsY;
}
var signY = Vector3.one;
if (showY)
{
bool swapX = (dotX > 0) ^ insideZ;
bool swapZ = (dotZ < 0);
signY.x = swapX ? 1 : -1; signY.z = swapZ ? 1 : -1;
var ofsX = swapX ? absLengthX : 0; fromY.x += ofsX; toY.x += ofsX;
var ofsZ = swapZ ? absLengthZ : 0; fromY.z += ofsZ; toY.z += ofsZ;
}
var signX = Vector3.one;
if (showX)
{
bool swapY = (dotY > 0) ^ insideZ;
bool swapZ = (dotZ < 0);
signX.y = swapY ? 1 : -1; signX.z = swapZ ? 1 : -1;
var ofsY = swapY ? absLengthY : 0; fromX.y += ofsY; toX.y += ofsY;
var ofsZ = swapZ ? absLengthZ : 0; fromX.z += ofsZ; toX.z += ofsZ;
}
var lineHandleX = SceneHandleUtility.ProjectPointLine(camPos, fromX, toX);
var lineHandleY = SceneHandleUtility.ProjectPointLine(camPos, fromY, toY);
var lineHandleZ = SceneHandleUtility.ProjectPointLine(camPos, fromZ, toZ);
var lineOfsX = (UnityEditor.HandleUtility.GetHandleSize(lineHandleX) * 0.25f);
var lineOfsY = (UnityEditor.HandleUtility.GetHandleSize(lineHandleY) * 0.25f);
var lineOfsZ = (UnityEditor.HandleUtility.GetHandleSize(lineHandleZ) * 0.25f);
var angleX = lineHandleX - camPos;
var angleY = lineHandleY - camPos;
var angleZ = lineHandleZ - camPos;
var directionX = Mathf.Abs(angleX.y) <= Mathf.Abs(angleX.z);
var directionY = Mathf.Abs(angleY.x) <= Mathf.Abs(angleY.z);
var directionZ = Mathf.Abs(angleZ.y) <= Mathf.Abs(angleZ.x);
var disabled = SceneHandles.disabled;
const int labelPadding = 2;
if (showX && ((visibleAxes & Axes.X) == Axes.X))
{
var axisDisabled = ((activeAxes & Axes.X) != Axes.X) || disabled;
var selected = ((selectedAxes & Axes.X) == Axes.X) && !axisDisabled;
var offsetY = new Vector3(0, (lineOfsY * signX.y), 0);
var offsetZ = new Vector3(0, 0, (lineOfsZ * signX.z));
var offset = directionX ? offsetY : offsetZ;
var fromOfs = fromX + offset;
var toOfs = toX + offset;
var camDir = SceneHandleUtility.ProjectPointLine(camPos, fromOfs, toOfs) - camPos;
var fromSize = Mathf.Min(absLengthX / 3.0f, UnityEditor.HandleUtility.GetHandleSize(fromOfs) * 0.2f);
var toSize = Mathf.Min(absLengthX / 3.0f, UnityEditor.HandleUtility.GetHandleSize(toOfs) * 0.2f);
var center = (toOfs + fromOfs) * 0.5f;
SceneHandles.color = SceneHandles.StateColor(color2, axisDisabled, selected);
SceneHandles.DrawLine(fromX, fromOfs);
SceneHandles.DrawLine(toX, toOfs);
SceneHandles.color = SceneHandles.StateColor(color, axisDisabled, selected);
SceneHandles.DrawLine(fromOfs, toOfs);
DrawFlatArrow(fromOfs, Vector3.right, camDir, fromSize);
DrawFlatArrow(toOfs, -Vector3.right, camDir, toSize);
DrawUnitLabel(center, offset, labelPadding, lengthX, "X");
}
if (showY && ((visibleAxes & Axes.Y) == Axes.Y))
{
var axisDisabled = ((activeAxes & Axes.Y) != Axes.Y) || disabled;
var selected = ((selectedAxes & Axes.Y) == Axes.Y) && !axisDisabled;
var offsetX = new Vector3((lineOfsX * signY.x), 0, 0);
var offsetZ = new Vector3(0, 0, (lineOfsZ * signY.z));
var offset = directionY ? offsetX : offsetZ;
var fromOfs = fromY + offset;
var toOfs = toY + offset;
var camDir = SceneHandleUtility.ProjectPointLine(camPos, fromOfs, toOfs) - camPos;
var fromSize = Mathf.Min(absLengthY / 3.0f, UnityEditor.HandleUtility.GetHandleSize(fromOfs) * 0.2f);
var toSize = Mathf.Min(absLengthY / 3.0f, UnityEditor.HandleUtility.GetHandleSize(toOfs) * 0.2f);
var center = (toOfs + fromOfs) * 0.5f;
SceneHandles.color = SceneHandles.StateColor(color2, axisDisabled, selected);
SceneHandles.DrawLine(fromY, fromOfs);
SceneHandles.DrawLine(toY, toOfs);
SceneHandles.color = SceneHandles.StateColor(color, axisDisabled, selected);
SceneHandles.DrawLine(fromOfs, toOfs);
DrawFlatArrow(fromOfs, Vector3.up, camDir, fromSize);
DrawFlatArrow(toOfs, -Vector3.up, camDir, toSize);
DrawUnitLabel(center, offset, labelPadding, lengthY, "Y");
}
if (showZ && ((visibleAxes & Axes.Z) == Axes.Z))
{
var axisDisabled = ((activeAxes & Axes.Z) != Axes.Z) || disabled;
var selected = ((selectedAxes & Axes.Z) == Axes.Z) && !axisDisabled;
var offsetX = new Vector3((lineOfsX * signZ.x), 0, 0);
var offsetY = new Vector3(0, (lineOfsY * signZ.y), 0);
var offset = directionZ ? offsetY : offsetX;
var fromOfs = fromZ + offset;
var toOfs = toZ + offset;
var camDir = SceneHandleUtility.ProjectPointLine(camPos, fromOfs, toOfs) - camPos;
var fromSize = Mathf.Min(absLengthZ / 3.0f, UnityEditor.HandleUtility.GetHandleSize(fromOfs) * 0.2f);
var toSize = Mathf.Min(absLengthZ / 3.0f, UnityEditor.HandleUtility.GetHandleSize(toOfs) * 0.2f);
var center = (toOfs + fromOfs) * 0.5f;
SceneHandles.color = SceneHandles.StateColor(color2, axisDisabled, selected);
SceneHandles.DrawLine(fromZ, fromOfs);
SceneHandles.DrawLine(toZ, toOfs);
SceneHandles.color = SceneHandles.StateColor(color, axisDisabled, selected);
SceneHandles.DrawLine(fromOfs, toOfs);
DrawFlatArrow(fromOfs, Vector3.forward, camDir, fromSize);
DrawFlatArrow(toOfs, -Vector3.forward, camDir, toSize);
DrawUnitLabel(center, offset, labelPadding, lengthZ, "Z");
}
SceneHandles.color = prevColor;
}
