#include <td/game/World.h>

#include <td/Constants.h>

#include <limits>

namespace td {
namespace game {

World::World() : m_WorldStates(std::numeric_limits<StepsType>::max()), m_OffsetTime(0) {}

void World::Tick(float a_Delta) {
	m_OffsetTime += a_Delta;

	if (GetCursorPos() > m_WorldStates.size()) {
		if (!m_GameHistory.HasLockStep(GetCursorPos())) {
			// oupsi
			return;
		}
		WorldState& lastState = m_WorldStates.back();
		WorldState nextState = lastState.GetNextState(m_GameHistory.GetLockStep(GetCursorPos()));
		m_WorldStates.push_back(std::move(nextState));
	}
}

std::uint16_t World::GetCursorPos() {
	return (std::uint16_t) m_OffsetTime * TPS;
}

}  // namespace game
}  // namespace td