internal void ShowSphereOnce(Vector3 center, float radius, Color color)
{
for (int j = 0; j < Sides; j++)
{
float angle = j / (float)Sides * MathHelper.TwoPi;
Vector3 x = new Vector3((float)Math.Cos(angle), 0, (float)Math.Sin(angle)) * radius;
Vector3 y = Vector3.UnitY * radius;
// Draw the vertical circles.
for (int i = 0; i < CircleSteps; i++)
{
float angle1 = i / (float)CircleSteps * MathHelper.TwoPi;
float angle2 = (i + 1) / (float)CircleSteps * MathHelper.TwoPi;
float sin1 = (float)Math.Sin(angle1);
float cos1 = (float)Math.Cos(angle1);
float sin2 = (float)Math.Sin(angle2);
float cos2 = (float)Math.Cos(angle2);
lines.ShowLineOnce(center + y * sin1 + x * cos1, center + y * sin2 + x * cos2, color);
}
}
Vector3 x2 = Vector3.UnitX * radius;
Vector3 z2 = Vector3.UnitZ * radius;
// Draw the equator.
for (int i = 0; i < CircleSteps; i++)
{
float sin1 = (float)Math.Sin(i / (float)CircleSteps * MathHelper.TwoPi);
float cos1 = (float)Math.Cos(i / (float)CircleSteps * MathHelper.TwoPi);
float sin2 = (float)Math.Sin((i + 1) / (float)CircleSteps * MathHelper.TwoPi);
float cos2 = (float)Math.Cos((i + 1) / (float)CircleSteps * MathHelper.TwoPi);
lines.ShowLineOnce(center + x2 * sin1 + z2 * cos1, center + x2 * sin2 + z2 * cos2, color);
}
}
internal void ShowVector3Once(Vector3 location, Vector3 vector, Color color)
{
Vector3 v1 = location;
Vector3 v2 = location + vector;
// Difference vector
Vector3 diff = v1 - v2;
float distance = Vector3.Distance(v1, v2);
if (distance == 0)
{
return;
}
diff *= 1 / distance;
// Craft a vector that is normal to diff
Vector3 normal1 = Vector3.Cross(diff, new Vector3(diff.Y, diff.X, diff.Z));
if (normal1 == Vector3.Zero)
{
normal1 = Vector3.Cross(diff, diff + Vector3.UnitY);
}
// Craft a vector that is normal to both diff and normal1
Vector3 normal2 = Vector3.Cross(diff, normal1);
normal1 *= distance * 0.02f;
normal2 *= distance * 0.02f;
diff *= distance * 0.04f;
lines.ShowLineOnce(v1, v2, color);
lines.ShowLineOnce(v2 + normal1 + diff, v2, color);
lines.ShowLineOnce(v2 - normal1 + diff, v2, color);
lines.ShowLineOnce(v2 + normal2 + diff, v2, color);
lines.ShowLineOnce(v2 - normal2 + diff, v2, color);
}
internal void ShowVector2Once(Vector2 location, Vector2 vector, Color color)
{
var v1 = location;
var v2 = vector;
// Difference vector
var diff = v1 - v2;
var distance = Vector2.Distance(location, v2);
if (distance == 0)
{
return;
}
diff *= 1 / distance;
// Craft a vector that is normal to diff
var normal1 = new Vector2(diff.Y, -diff.X);
// TODO: Move this value to a config
normal1 *= 8;
diff *= 8;
_lines.ShowLineOnce(v1, v2, color);
_lines.ShowLineOnce(v2 + normal1 + diff, v2, color);
_lines.ShowLineOnce(v2 - normal1 + diff, v2, color);
}
internal void ShowSphereOnce(Vector3 center, float radius, Color color)
{
for (var j = 0; j < Sides; j++)
{
var x = new Vector3(CosSideSteps[j], 0, SinSideSteps[j]) * radius;
var y = Vector3.UnitY * radius;
// Draw the vertical circles.
for (var i = 0; i < CircleSteps; i++)
{
_lines.ShowLineOnce(center + y * SinCircleSteps[i] + x * CosCircleSteps[i], center + y * SinCircleSteps[i + 1] + x * CosCircleSteps[i + 1], color);
}
}
var x2 = Vector3.UnitX * radius;
var z2 = Vector3.UnitZ * radius;
// Draw the equator.
for (var i = 0; i < CircleSteps; i++)
{
_lines.ShowLineOnce(center + x2 * SinCircleSteps[i] + z2 * CosCircleSteps[i], center + x2 * SinCircleSteps[i + 1] + z2 * CosCircleSteps[i + 1], color);
}
}
/// <summary>
/// Helper methods, draws the border of the box. Must be called every frame.
/// TODO: Move this to a UI debug drawer or something similar
/// </summary>
internal void DrawBorderLines(Color color, InternalLineDrawer lineDrawer)
{
var screenPos = GetScreenPosition();
var tl = screenPos;
var tr = new Vector2(screenPos.X + _size.X, screenPos.Y);
var br = new Vector2(screenPos.X + _size.X, screenPos.Y + _size.Y);
var bl = new Vector2(screenPos.X, screenPos.Y + _size.Y);
lineDrawer.ShowLineOnce(tl, tr, color);
lineDrawer.ShowLineOnce(tr, br, color);
lineDrawer.ShowLineOnce(br, bl, color);
lineDrawer.ShowLineOnce(bl, tl, color);
}
public void DrawCrossLines(Color color, InternalLineDrawer lineDrawer)
{
lineDrawer.ShowLineOnce(TopLeft, BottomRight, color);
lineDrawer.ShowLineOnce(TopRight, BottomLeft, color);
}
internal void ShowBoxOnce(Vector3 min, Vector3 max, Color color)
{
lines.ShowLineOnce(new Vector3(min.X, min.Y, min.Z), new Vector3(max.X, min.Y, min.Z), color);
lines.ShowLineOnce(new Vector3(min.X, max.Y, min.Z), new Vector3(max.X, max.Y, min.Z), color);
lines.ShowLineOnce(new Vector3(min.X, min.Y, min.Z), new Vector3(min.X, max.Y, min.Z), color);
lines.ShowLineOnce(new Vector3(max.X, min.Y, min.Z), new Vector3(max.X, max.Y, min.Z), color);
lines.ShowLineOnce(new Vector3(min.X, min.Y, max.Z), new Vector3(max.X, min.Y, max.Z), color);
lines.ShowLineOnce(new Vector3(min.X, max.Y, max.Z), new Vector3(max.X, max.Y, max.Z), color);
lines.ShowLineOnce(new Vector3(min.X, min.Y, max.Z), new Vector3(min.X, max.Y, max.Z), color);
lines.ShowLineOnce(new Vector3(max.X, min.Y, max.Z), new Vector3(max.X, max.Y, max.Z), color);
lines.ShowLineOnce(new Vector3(min.X, min.Y, min.Z), new Vector3(min.X, min.Y, max.Z), color);
lines.ShowLineOnce(new Vector3(min.X, max.Y, min.Z), new Vector3(min.X, max.Y, max.Z), color);
lines.ShowLineOnce(new Vector3(max.X, max.Y, min.Z), new Vector3(max.X, max.Y, max.Z), color);
lines.ShowLineOnce(new Vector3(max.X, min.Y, min.Z), new Vector3(max.X, min.Y, max.Z), color);
}
