private List <ShapeInfo> PickShapes(RigidBody body, Vector2 worldCoord, Vector2 worldSize)
{
Rect worldRect = new Rect(worldCoord.X, worldCoord.Y, worldSize.X, worldSize.Y);
// Do a physical picking operation
List <ShapeInfo> result = new List <ShapeInfo>();
body.PickShapes(worldCoord, worldSize, result);
// Special case for Loop- and ChainShapes, because they are by definition unpickable
foreach (ShapeInfo shape in body.Shapes)
{
LoopShapeInfo loop = shape as LoopShapeInfo;
ChainShapeInfo chain = shape as ChainShapeInfo;
Vector2[] vertices = null;
if (loop != null)
{
vertices = loop.Vertices;
}
if (chain != null)
{
vertices = chain.Vertices;
}
if (vertices != null && IsOutlineBoxIntersection(body.GameObj.Transform, vertices, worldRect))
{
result.Add(shape);
continue;
}
}
return(result);
}
private ShapeInfo PickShape(RigidBody body, Vector2 worldCoord)
{
// Special case for Loop- and ChainShapes, because they are by definition unpickable
Rect worldRect = Rect.Align(Alignment.Center, worldCoord.X, worldCoord.Y, 10.0f, 10.0f);
foreach (ShapeInfo shape in body.Shapes)
{
LoopShapeInfo loop = shape as LoopShapeInfo;
ChainShapeInfo chain = shape as ChainShapeInfo;
Vector2[] vertices = null;
if (loop != null)
{
vertices = loop.Vertices;
}
if (chain != null)
{
vertices = chain.Vertices;
}
if (vertices != null && IsOutlineBoxIntersection(body.GameObj.Transform, vertices, worldRect))
{
return(shape);
}
}
// Do a physical picking operation
return(body.PickShape(worldCoord));
}
protected internal override void OnCollectWorldOverlayDrawcalls(Canvas canvas)
{
base.OnCollectWorldOverlayDrawcalls(canvas);
List <RigidBody> visibleColliders = this.QueryVisibleColliders().ToList();
RigidBody selectedBody = this.QuerySelectedCollider();
canvas.State.TextFont = Font.GenericMonospace10;
canvas.State.TextInvariantScale = true;
canvas.State.ZOffset = -0.5f;
Font textFont = canvas.State.TextFont.Res;
// Draw Shape layer
foreach (RigidBody body in visibleColliders)
{
if (!body.Shapes.Any())
{
continue;
}
float colliderAlpha = body == selectedBody ? 1.0f : (selectedBody != null ? 0.25f : 0.5f);
float maxDensity = body.Shapes.Max(s => s.Density);
float minDensity = body.Shapes.Min(s => s.Density);
float avgDensity = (maxDensity + minDensity) * 0.5f;
Vector3 objPos = body.GameObj.Transform.Pos;
float objAngle = body.GameObj.Transform.Angle;
float objScale = body.GameObj.Transform.Scale;
int index = 0;
foreach (ShapeInfo shape in body.Shapes)
{
CircleShapeInfo circle = shape as CircleShapeInfo;
PolyShapeInfo poly = shape as PolyShapeInfo;
ChainShapeInfo chain = shape as ChainShapeInfo;
LoopShapeInfo loop = shape as LoopShapeInfo;
ObjectEditorCamViewState editorState = this.View.ActiveState as ObjectEditorCamViewState;
float shapeAlpha = colliderAlpha * (selectedBody == null || editorState == null || editorState.SelectedObjects.Any(sel => sel.ActualObject == shape) ? 1.0f : 0.5f);
float densityRelative = MathF.Abs(maxDensity - minDensity) < 0.01f ? 1.0f : shape.Density / avgDensity;
ColorRgba clr = shape.IsSensor ? this.ShapeSensorColor : this.ShapeColor;
ColorRgba fontClr = this.FgColor;
Vector2 center = Vector2.Zero;
if (!body.IsAwake)
{
clr = clr.ToHsva().WithSaturation(0.0f).ToRgba();
}
if (!shape.IsValid)
{
clr = this.ShapeErrorColor;
}
bool fillShape = (poly != null || circle != null);
Vector2[] shapeVertices = null;
if (poly != null)
{
shapeVertices = poly.Vertices;
}
else if (loop != null)
{
shapeVertices = loop.Vertices;
}
else if (chain != null)
{
shapeVertices = chain.Vertices;
}
if (circle != null)
{
Vector2 circlePos = circle.Position * objScale;
MathF.TransformCoord(ref circlePos.X, ref circlePos.Y, objAngle);
if (fillShape)
{
canvas.State.SetMaterial(new BatchInfo(DrawTechnique.Alpha, clr.WithAlpha((0.25f + densityRelative * 0.25f) * shapeAlpha)));
canvas.FillCircle(
objPos.X + circlePos.X,
objPos.Y + circlePos.Y,
objPos.Z,
circle.Radius * objScale);
}
canvas.State.SetMaterial(new BatchInfo(DrawTechnique.Alpha, clr.WithAlpha(shapeAlpha)));
canvas.DrawCircle(
objPos.X + circlePos.X,
objPos.Y + circlePos.Y,
objPos.Z,
circle.Radius * objScale);
center = circlePos;
}
else if (shapeVertices != null)
{
ColorRgba vertexFillColor = canvas.State.ColorTint * clr.WithAlpha((0.25f + densityRelative * 0.25f) * shapeAlpha);
ColorRgba vertexOutlineColor = canvas.State.ColorTint * clr;
// Prepare vertices to submit. We can't use higher-level canvas functionality
// here, because we want direct control over the vertex mode.
float viewSpaceScale = objScale;
Vector3 viewSpacePos = objPos;
canvas.DrawDevice.PreprocessCoords(ref viewSpacePos, ref viewSpaceScale);
VertexC1P3T2[] drawVertices = new VertexC1P3T2[shapeVertices.Length];
for (int i = 0; i < drawVertices.Length; i++)
{
drawVertices[i].Pos.X = shapeVertices[i].X;
drawVertices[i].Pos.Y = shapeVertices[i].Y;
drawVertices[i].Pos.Z = 0.0f;
MathF.TransformCoord(ref drawVertices[i].Pos.X, ref drawVertices[i].Pos.Y, objAngle, viewSpaceScale);
drawVertices[i].Pos.X += viewSpacePos.X;
drawVertices[i].Pos.Y += viewSpacePos.Y;
drawVertices[i].Pos.Z += viewSpacePos.Z;
drawVertices[i].Color = vertexOutlineColor;
}
// Calculate the center coordinate
for (int i = 0; i < drawVertices.Length; i++)
{
center += shapeVertices[i];
}
center /= shapeVertices.Length;
MathF.TransformCoord(ref center.X, ref center.Y, objAngle, objScale);
// Make sure to render using an alpha material
canvas.State.SetMaterial(new BatchInfo(DrawTechnique.Alpha, ColorRgba.White));
// Fill the shape
if (fillShape)
{
VertexC1P3T2[] fillVertices = drawVertices.Clone() as VertexC1P3T2[];
for (int i = 0; i < fillVertices.Length; i++)
{
fillVertices[i].Color = vertexFillColor;
}
canvas.DrawVertices(fillVertices, VertexMode.TriangleFan);
}
// Draw the outline
canvas.DrawVertices(drawVertices, shape is ChainShapeInfo ? VertexMode.LineStrip : VertexMode.LineLoop);
}
// Draw shape index
if (body == selectedBody)
{
string indexText = index.ToString();
Vector2 textSize = textFont.MeasureText(indexText);
canvas.State.SetMaterial(new BatchInfo(DrawTechnique.Alpha, fontClr.WithAlpha((shapeAlpha + 1.0f) * 0.5f)));
canvas.DrawText(indexText,
objPos.X + center.X,
objPos.Y + center.Y,
objPos.Z);
}
index++;
}
// Draw center of mass
if (body.BodyType == BodyType.Dynamic)
{
Vector2 localMassCenter = body.LocalMassCenter;
MathF.TransformCoord(ref localMassCenter.X, ref localMassCenter.Y, objAngle, objScale);
canvas.State.SetMaterial(new BatchInfo(DrawTechnique.Alpha, this.MassCenterColor.WithAlpha(colliderAlpha)));
canvas.DrawLine(
objPos.X + localMassCenter.X - 5.0f,
objPos.Y + localMassCenter.Y,
objPos.Z,
objPos.X + localMassCenter.X + 5.0f,
objPos.Y + localMassCenter.Y,
objPos.Z);
canvas.DrawLine(
objPos.X + localMassCenter.X,
objPos.Y + localMassCenter.Y - 5.0f,
objPos.Z,
objPos.X + localMassCenter.X,
objPos.Y + localMassCenter.Y + 5.0f,
objPos.Z);
}
}
}
private void DrawShape(Canvas canvas, Transform transform, ChainShapeInfo shape, ColorRgba fillColor, ColorRgba outlineColor)
{
this.DrawPolygonOutline(canvas, transform, shape.Vertices, outlineColor, false);
}
protected internal override void OnCollectWorldOverlayDrawcalls(Canvas canvas)
{
base.OnCollectWorldOverlayDrawcalls(canvas);
List <RigidBody> visibleColliders = this.QueryVisibleColliders().ToList();
RigidBody selectedBody = this.QuerySelectedCollider();
canvas.State.SetMaterial(new BatchInfo(DrawTechnique.Alpha, ColorRgba.White));
canvas.State.TextFont = Font.GenericMonospace10;
canvas.State.TextInvariantScale = true;
canvas.State.ZOffset = this.depthOffset;
Font textFont = canvas.State.TextFont.Res;
// Retrieve selected shapes
ObjectEditorCamViewState editorState = this.View.ActiveState as ObjectEditorCamViewState;
object[] editorSelectedObjects = editorState != null?editorState.SelectedObjects.Select(item => item.ActualObject).ToArray() : new object[0];
bool isAnyBodySelected = (selectedBody != null);
bool isAnyShapeSelected = isAnyBodySelected && editorSelectedObjects.OfType <ShapeInfo>().Any();
// Draw Shape layer
foreach (RigidBody body in visibleColliders)
{
if (!body.Shapes.Any())
{
continue;
}
Vector3 objPos = body.GameObj.Transform.Pos;
float objAngle = body.GameObj.Transform.Angle;
float objScale = body.GameObj.Transform.Scale;
bool isBodySelected = (body == selectedBody);
float bodyAlpha = isBodySelected ? 1.0f : (isAnyBodySelected ? 0.5f : 1.0f);
float maxDensity = body.Shapes.Max(s => s.Density);
float minDensity = body.Shapes.Min(s => s.Density);
float avgDensity = (maxDensity + minDensity) * 0.5f;
int shapeIndex = 0;
foreach (ShapeInfo shape in body.Shapes)
{
CircleShapeInfo circle = shape as CircleShapeInfo;
PolyShapeInfo poly = shape as PolyShapeInfo;
ChainShapeInfo chain = shape as ChainShapeInfo;
LoopShapeInfo loop = shape as LoopShapeInfo;
bool isShapeSelected = isBodySelected && editorSelectedObjects.Contains(shape);
float shapeAlpha = bodyAlpha * (isShapeSelected ? 1.0f : (isAnyShapeSelected && isBodySelected ? 0.75f : 1.0f));
float densityRelative = MathF.Abs(maxDensity - minDensity) < 0.01f ? 1.0f : shape.Density / avgDensity;
ColorRgba shapeColor = shape.IsSensor ? this.ShapeSensorColor : this.ShapeColor;
ColorRgba fontColor = this.FgColor;
if (!body.IsAwake)
{
shapeColor = shapeColor.ToHsva().WithSaturation(0.0f).ToRgba();
}
if (!shape.IsValid)
{
shapeColor = this.ShapeErrorColor;
}
// Draw the shape itself
ColorRgba fillColor = shapeColor.WithAlpha((0.25f + densityRelative * 0.25f) * shapeAlpha);
ColorRgba outlineColor = ColorRgba.Lerp(shapeColor, fontColor, isShapeSelected ? 0.75f : 0.25f).WithAlpha(shapeAlpha);
this.DrawShape(canvas, body.GameObj.Transform, shape, fillColor, outlineColor);
// Calculate the center coordinate
Vector2 shapeCenter = Vector2.Zero;
if (circle != null)
{
shapeCenter = circle.Position * objScale;
}
else
{
Vector2[] shapeVertices = null;
if (poly != null)
{
shapeVertices = poly.Vertices;
}
else if (loop != null)
{
shapeVertices = loop.Vertices;
}
else if (chain != null)
{
shapeVertices = chain.Vertices;
}
for (int i = 0; i < shapeVertices.Length; i++)
{
shapeCenter += shapeVertices[i];
}
shapeCenter /= shapeVertices.Length;
MathF.TransformCoord(ref shapeCenter.X, ref shapeCenter.Y, objAngle, objScale);
}
// Draw shape index
if (body == selectedBody)
{
string indexText = shapeIndex.ToString();
Vector2 textSize = textFont.MeasureText(indexText);
canvas.State.ColorTint = fontColor.WithAlpha((shapeAlpha + 1.0f) * 0.5f);
canvas.DrawText(indexText,
objPos.X + shapeCenter.X,
objPos.Y + shapeCenter.Y,
0.0f);
}
shapeIndex++;
}
// Draw center of mass
if (body.BodyType == BodyType.Dynamic)
{
Vector2 localMassCenter = body.LocalMassCenter;
MathF.TransformCoord(ref localMassCenter.X, ref localMassCenter.Y, objAngle, objScale);
float size = this.GetScreenConstantScale(canvas, 6.0f);
canvas.State.ColorTint = this.MassCenterColor.WithAlpha(bodyAlpha);
canvas.DrawLine(
objPos.X + localMassCenter.X - size,
objPos.Y + localMassCenter.Y,
0.0f,
objPos.X + localMassCenter.X + size,
objPos.Y + localMassCenter.Y,
0.0f);
canvas.DrawLine(
objPos.X + localMassCenter.X,
objPos.Y + localMassCenter.Y - size,
0.0f,
objPos.X + localMassCenter.X,
objPos.Y + localMassCenter.Y + size,
0.0f);
}
// Draw transform center
if (body.BodyType == BodyType.Dynamic)
{
float size = this.GetScreenConstantScale(canvas, 3.0f);
canvas.State.ColorTint = this.ObjectCenterColor.WithAlpha(bodyAlpha);
canvas.FillCircle(objPos.X, objPos.Y, 0.0f, size);
}
}
}
public RigidBodyEditorSelChainShape(ChainShapeInfo shape) : base(shape)
{
}
