private PointF[] NormalizeCoords(VectorGroup group) =>
group
.Scale(_scalling)
.Select(p =>
new PointF(p.X + _width / 2 - camOffset.X * _scalling,
_height - p.Y - _height / 2 + camOffset.Y * _scalling))
.ToArray();
public override void Render()
{
var pts = Bounds.ToArray();
var canPts = new VectorGroup(pts[0], pts[1], pts[4], pts[3], pts[0], pts[4],
pts[1], pts[2], pts[3]);
View.FillPolygon(new VectorGroup(pts).Move(Position), color, false);
View.DrawPolygon(canPts.Move(Position), Color.Black, false, 2);
}
public Wall(Vector from, Vector to)
{
var center = (from + to) * 0.5f;
Bounds = VectorGroup.FromRect(
new Size((int)MathF.Abs(from.X - to.X),
(int)MathF.Abs(from.Y - to.Y)));
Position = center;
BoundsRadius = from.DistaceTo(to);
}
public void FillPolygon(VectorGroup points, Color color,
bool isCurved = false)
{
var normalizedPoints = NormalizeCoords(points);
if (isCurved)
{
_currentGraphics.FillClosedCurve(new SolidBrush(color), normalizedPoints);
}
else
{
_currentGraphics.FillPolygon(new SolidBrush(color), normalizedPoints);
}
}
public void DrawPolygon(VectorGroup points, Color color, bool isCurved =
false, float stroke = 1)
{
var normalizedPoints = NormalizeCoords(points);
if (isCurved)
{
_currentGraphics.DrawClosedCurve(new Pen(color, stroke), normalizedPoints);
}
else
{
_currentGraphics.DrawPolygon(new Pen(color, stroke), normalizedPoints);
}
}
public static bool HandleCollisions(TankState state, TankAppliance appliance, VectorGroup oppos, float elapsed)
{
var selfBounds = appliance.Bounds
.Rotate(appliance.Origin, state.Rotation)
.Move(state.Position);
var intersected = false;
var interections = selfBounds.FindIntersections(oppos);
foreach (var((c, d), (a, b)) in interections)
{
intersected = true;
var dir = state.Position.X * (a.Y - b.Y) * state.Position.Y * (b.X - a.X) + (a.X * b.Y - a.Y * b.X);
var v = b - a;
if (dir == 0) // sorry, that's magic
{
continue;
}
var n = new Vector(v.Y, -v.X) * -(dir / MathF.Abs(dir)); // direction to throw body away
state.Speed = 0;
state.Position += n * 0.05f * elapsed;
}
return(intersected);
}
private void OnWorldPaint(object sender, PaintEventArgs e)
{
var g = e.Graphics;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
_frame = new Frame(g, Width, Height, 0.5f);
if (_isConnected)
{
_frame.LookAt(currentState.Position);
var rq = new List <TankState>();
rq.Add(currentState);
rq.AddRange(enemiesStates);
foreach (var state in rq)
{
if (state != default)
{
_t1Appliance.Render(_frame, state);
var bounds = _t1Appliance.Bounds
.Rotate(_t1Appliance.Origin, state.Rotation)
.Move(state.Position);
_frame.DrawPolygon(bounds, Color.Lime);
var ray = new VectorGroup(state.Position,
state.Position + Vector.FromAngle(state.GunRotation - 90f) * 2000f);
if (state.Loading > 1)
{
_frame.DrawPolygon(ray, Color.Chocolate);
}
}
}
foreach (var wall in _map.Walls)
{
_frame.FillPolygon(wall.Bounds.Move(wall.Position).Scale(_map.ScallingFactor),
Color.FromName(wall.ColorCode));
var bounds = wall.Bounds
.Move(wall.Position)
.Scale(_map.ScallingFactor);
_frame.DrawPolygon(bounds, Color.MediumPurple);
}
g.DrawString($"Score {currentState.Score}", new Font(FontFamily.GenericMonospace, 20), Brushes.Black, 0, 0);
}
else
{
g.DrawString("Connecting", new Font(FontFamily.GenericMonospace, 20), Brushes.Black, 0, 0);
}
if (currentState?.IsInters ?? false)
{
g.DrawString("Oh no", new Font(FontFamily.GenericMonospace, 20), Brushes.PaleVioletRed, 0, 0);
}
/*if (currentState != null)
* View.PlaceCamOn(currentState);*/
}
