// Class-based entity script: one `EntityScript` instance per entity.
// Implements Init/Update/Shutdown so the engine will instantiate it per-entity.

class EntityScript
{
	float baseX;
	float baseY;
	float baseZ;
	[group["Movement"]][desc["Phase accumulator for the sine wave"]][editable][range[0,1]]float phase;

	// per-instance movement parameters (can be tuned per-entity)
	[group["Movement"]][desc["Bounce height"]][editable][range[0,10]]float amplitude = 2.5f;
	[group["Movement"]][desc["Cycles per second"]][editable][range[0,10]]float speed = 2.5f;

	[group["State"]][desc["Debug animation state"]][editable][options[Idle,Walk,Run]] int state = 0;

	EntityScript()
	{
		baseX = 0.0f;
		baseY = 0.0f;
		baseZ = 0.0f;
		phase = 0.0f;
	}

	void Init(uint entity)
	{
		if (!ECS::IsValid(entity)) return;
		if (!ECS::HasTransform(entity))
			ECS::AddTransform(entity, 0.0f, 0.0f, 0.0f);

		ECS::GetPosition(entity, baseX, baseY, baseZ);
		phase = 0.0f;
	}

	void Update(uint entity, float dt)
	{
		if (!ECS::IsValid(entity)) return;
		if (!ECS::HasTransform(entity)) return;

		phase += dt;
		float offset = Math::Sin(phase * speed + float(entity) * 0.1f) * amplitude;
		ECS::SetPosition(entity, baseX, baseY + offset, baseZ);
	}

	void Shutdown(uint entity)
	{
		// nothing to clean up per-instance for this simple example
	}
}