private void DrawStrand(Graphics graphics, Rectangle clip, Strand strand)
{
int x;
int y;
x = strand.Position.X;
y = strand.Position.Y;
if (this.ShouldRender(clip, x, y))
{
if (_drawShapes)
{
GraphicsState state;
state = graphics.Save();
graphics.TranslateTransform(x, y);
graphics.RotateTransform(Compass.GetAngle(strand.Heading));
graphics.DrawPolygon(_strandPen, _strandShape);
graphics.Restore(state);
}
else
{
graphics.DrawLine(_strandPen, new Point(strand.Position.X - 1, strand.Position.Y - 1), new Point(strand.Position.X + 1, strand.Position.Y + 1));
graphics.DrawLine(_strandPen, new Point(strand.Position.X - 1, strand.Position.Y + 1), new Point(strand.Position.X + 1, strand.Position.Y - 1));
}
}
}
private void DrawChemoeffector(Graphics graphics, Rectangle clip, Chemoeffector chemoeffector, Pen pen, Point[] shape, bool showDetectionZone)
{
Rectangle bounds;
bounds = new Rectangle(chemoeffector.Position.X - (chemoeffector.Strength / 2), chemoeffector.Position.Y - (chemoeffector.Strength / 2), chemoeffector.Strength, chemoeffector.Strength);
if (this.ShouldRender(clip, bounds))
{
if (showDetectionZone)
{
if (_outlinesOnly)
{
graphics.DrawEllipse(pen, bounds);
}
else
{
using (GraphicsPath ellipsePath = new GraphicsPath())
{
ellipsePath.AddEllipse(bounds);
using (PathGradientBrush brush = new PathGradientBrush(ellipsePath))
{
brush.CenterPoint = chemoeffector.Position;
brush.CenterColor = Color.FromArgb(128, pen.Color);
brush.SurroundColors = new[] { Color.Transparent };
graphics.FillEllipse(brush, bounds);
}
}
}
}
if (_drawShapes)
{
int x;
int y;
GraphicsState state;
x = chemoeffector.Position.X;
y = chemoeffector.Position.Y;
state = graphics.Save();
graphics.TranslateTransform(x, y);
graphics.RotateTransform(Compass.GetAngle(chemoeffector.Heading));
graphics.DrawPolygon(pen, shape);
graphics.Restore(state);
}
else
{
graphics.DrawLine(pen, new Point(chemoeffector.Position.X - 1, chemoeffector.Position.Y), new Point(chemoeffector.Position.X + 1, chemoeffector.Position.Y));
graphics.DrawLine(pen, new Point(chemoeffector.Position.X, chemoeffector.Position.Y - 1), new Point(chemoeffector.Position.X, chemoeffector.Position.Y + 1));
}
}
}
public void GetAngleTestCases(Point current, int expected)
{
// arrange
int actual;
// act
actual = Compass.GetAngle(current);
// assert
Assert.AreEqual(expected, actual);
}
public void Draw(XnaRenderer renderer)
{
Tile[] parts = _body.ToArray();
for (int i = 0; i < parts.Length; i++)
{
Texture texture;
float angle = 0;
Tile part = parts[i];
if (i == parts.Length - 1)
{
texture = _headAnimation.CurrentTexture;
angle = Compass.GetAngle(MoveDirection);
}
else if (i == 0)
{
texture = _tailTexture;
CardinalDirection directionOfLast = Compass.GetDirection(parts[i + 1].Position - parts[i].Position);
angle = Compass.GetAngle(directionOfLast);
}
else
{
CardinalDirection directionOfNext = Compass.GetDirection(parts[i - 1].Position - parts[i].Position);
CardinalDirection directionOfLast = Compass.GetDirection(parts[i + 1].Position - parts[i].Position);
if (Compass.GetOppositeDirection(directionOfLast) == directionOfNext)
{
texture = _bodyNsTexture;
if (directionOfNext == CardinalDirection.East || directionOfNext == CardinalDirection.West)
{
angle = MathHelper.PiOver2;
}
}
else
{
texture = _bodyNeTexture;
if (directionOfLast == CardinalDirection.North && directionOfNext == CardinalDirection.West)
{
angle = MathHelper.PiOver2 * 3;
}
if (directionOfLast == CardinalDirection.East && directionOfNext == CardinalDirection.South)
{
angle = MathHelper.PiOver2;
}
if (directionOfLast == CardinalDirection.South && directionOfNext == CardinalDirection.East)
{
angle = MathHelper.PiOver2;
}
if (directionOfLast == CardinalDirection.South && directionOfNext == CardinalDirection.West)
{
angle = MathHelper.Pi;
}
if (directionOfLast == CardinalDirection.West && directionOfNext == CardinalDirection.South)
{
angle = MathHelper.Pi;
}
if (directionOfLast == CardinalDirection.West && directionOfNext == CardinalDirection.North)
{
angle = MathHelper.PiOver2 * 3;
}
}
}
renderer.DrawSprite(texture, new Vector2(part.Position.X + 0.5f, part.Position.Y + 0.5f), new Vector2(1f, 1f), angle, Color.Green, 1f);
}
}