public Boids(BoidsParameter boidsParameter)
{
this.boidsParameter = boidsParameter;
boidDisplays = new CircleNode[BoidsCount];
positions = new Vector2F[BoidsCount];
directions = new Vector2F[BoidsCount];
// Background
AddChildNode(new RectangleNode {
Color = new Color(10, 10, 10), RectangleSize = Area
});
// Initialize Parameters
var rand = new Random();
for (int i = 0; i < BoidsCount; i++)
{
boidDisplays[i] = new CircleNode {
VertNum = 20, Radius = 5.0f
};
AddChildNode(boidDisplays[i]);
positions[i] = new Vector2F(Area.X * (float)rand.NextDouble(), Area.Y * (float)rand.NextDouble());
directions[i] = new Vector2F((float)rand.NextDouble() * 2.0f - 1.0f, (float)rand.NextDouble() * 2.0f - 1.0f);
if (directions[i].SquaredLength != 0.0f)
{
directions[i] = directions[i].Normal;
}
gravityPoint += positions[i];
}
gravityPoint /= BoidsCount;
mouseCircle = new CircleNode {
VertNum = 20, Radius = 5.0f, Color = new Color(255, 50, 50)
};
AddChildNode(mouseCircle);
}
static void Main(string[] args)
{
var config = new Configuration();
config.ConsoleLoggingEnabled = true;
config.ToolEnabled = true;
config.WaitVSync = false;
Engine.Initialize("Boids", 800, 600, config);
Engine.TargetFPS = 2000.0f;
var param = new BoidsParameter
{
Speed = 100.0f,
Separation = 20.0f,
Alignment = 30.0f,
Cohesion = 0.2f,
Wall = 0.001f,
Mouse = 1.0f,
};
Engine.AddNode(new Boids(param));
while (Engine.DoEvents())
{
if (Engine.Tool.Begin("Boids", ToolWindowFlags.None))
{
float speed = param.Speed;
float separation = param.Separation;
float alignment = param.Alignment;
float cohesion = param.Cohesion;
float wall = param.Wall;
float mouse = param.Mouse;
Engine.Tool.Text($"FPS:{Engine.CurrentFPS}");
if (Engine.Tool.InputFloat("Speed", ref speed))
{
param.Speed = speed;
}
if (Engine.Tool.InputFloat("Separation", ref separation))
{
param.Separation = separation;
}
if (Engine.Tool.InputFloat("Alignment", ref alignment))
{
param.Alignment = alignment;
}
if (Engine.Tool.InputFloat("Cohesion", ref cohesion))
{
param.Cohesion = cohesion;
}
if (Engine.Tool.InputFloat("Wall", ref wall))
{
param.Wall = wall;
}
if (Engine.Tool.InputFloat("Mouse", ref mouse))
{
param.Mouse = mouse;
}
Engine.Tool.End();
}
Engine.Update();
}
Engine.Terminate();
}
