//// ===========================================================================================================
//// Methods
//// ===========================================================================================================
protected override Canvas Render(CameraRenderOptions options)
{
var start = new Point(0, 1, 0);
var velocity = new Vector(1, 1.8, 0).Normalize() * 11.25;
var cannonball = new Projectile(start, velocity);
// gravity is -0.1 unit/tick and wind is -0.01 unit/tick
var gravity = new Vector(0, -0.1, 0);
var wind = new Vector(-0.01, 0, 0);
var environment = new Environment(gravity, wind);
var color = Colors.Magenta;
const int pixelBorderSize = 2;
var canvas = new MutableCanvas(CanvasWidth, CanvasHeight);
while (cannonball.Position.Y > 0)
{
cannonball = Tick(environment, cannonball);
int pointX = (int)Math.Round(cannonball.Position.X);
int pointY = (int)Math.Round(canvas.Height - cannonball.Position.Y);
canvas.FillRect(
top: pointY - pixelBorderSize,
left: pointX - pixelBorderSize,
bottom: pointY + pixelBorderSize,
right: pointX + pixelBorderSize,
color);
}
return(canvas.ToImmutable());
}
protected override Canvas Render(CameraRenderOptions options)
{
var canvas = new MutableCanvas(CanvasWidth, CanvasHeight);
int centerX = canvas.Width / 2;
int centerY = canvas.Height / 2;
double clockRadius = Math.Min(canvas.Width * (3d / 8), canvas.Height * (3d / 8));
var color = Colors.Cyan;
const int pixelBorderSize = 4;
// The clock is oriented along the y axis, which means when looking at it face-on you're looking
// towards the negative y axis and the clock face sits on the x-z plane.
var twelve = new Point(0, 0, 1);
const double rotationAngle = (2 * Math.PI) / 12;
for (int hour = 0; hour < 12; hour++)
{
// Rotate the twelve point around the y axis.
// Scale by the clock radius.
// Translate to the center of the canvas.
var transform = Matrix4x4.CreateRotationY(hour * rotationAngle);
Point hourPoint = transform * twelve;
int x = centerX + (int)Math.Round(hourPoint.X * clockRadius);
int y = centerY - (int)Math.Round(hourPoint.Z * clockRadius);
canvas.FillRect(
top: y - pixelBorderSize,
left: x - pixelBorderSize,
bottom: y + pixelBorderSize,
right: x + pixelBorderSize,
color);
}
return(canvas.ToImmutable());
}
