module gameengine.core.engine;

import gameengine.renderer;
import gameengine.node.node;
import core.time;

class Engine {
	this(IRenderer* renderer) {
		this.renderer = renderer;
		previousProcessTick = MonoTime.currTime();
		previousPhysicsProcessTick = MonoTime.currTime();
	}

	void runNodeProcesses() {
		MonoTime currentTime = MonoTime.currTime();

		Duration difference = currentTime - previousProcessTick;

		float delta = difference.total!"hnsecs" / 10_000_000.0;

		// Temp
		debug { import std.stdio : writeln; import std.format; try { writeln(format("%f", delta)); } catch (Exception) {} }
		foreach (Node* node ; nodeList) {
			node.process(delta);
		}

		this.previousProcessTick = MonoTime.currTime();
	}

	void runNodePhysicsProcesses() {
		// Schade!
		this.previousPhysicsProcessTick = MonoTime.currTime();
	}

	void drawNodes() {}

	string engineVersion() const { return "0.0.0"; }

	private IRenderer* renderer;
	private MonoTime previousProcessTick;
	private MonoTime previousPhysicsProcessTick;

	private Node*[] nodeList;
}