package main

import (
	"github.com/gen2brain/raylib-go/raylib"
)

type Sketch struct {
	layers []Layer
}

func (s *Sketch) Draw(ctx *RenderCtx) {
	for _, layer := range s.layers {
		layer.Draw(ctx)
	}
}



type Layer interface {
	Draw(ctx *RenderCtx)
}

/** Ports **/

type Ports map[string]Signal

func MakePorts() Ports {
	return make(Ports)
}

/**
 * materialize current value for all ports
 **/
func (p Ports) Eval(t float64) map[string]float64 {
	out := make(map[string]float64, len(p))
	for name, sig := range p {
		out[name] = sig.Eval(t)
	}
	return out
}

/** RenderCtx **/

type RenderCtx struct {
	Width  int32
	Height int32
	Time   float64
	Ports  map[string]float64
	Cam    rl.Camera2D
}