Martin Slachta
58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
#include "EntityPositionInterpolator.hpp"
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#include "world/Transform.hpp"
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#include "InterpolatedProperty.hpp"
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#include "EntityInterpolation.hpp"
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#include <spdlog/spdlog.h>
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namespace tw::net {
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EntityPositionInterpolator::EntityPositionInterpolator(
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entt::registry* registry, entt::entity player_entity, size_t bufferingIntervalInMillis
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) : m_registry(registry),
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m_player_entity(player_entity),
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m_bufferingIntervalInMillis(bufferingIntervalInMillis)
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{
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}
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void EntityPositionInterpolator::register_entity(entt::entity entity) {
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m_registry->emplace<EntityPositionInterpolation>(entity, glm::vec3());
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}
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void EntityPositionInterpolator::add_position_for_entity(entt::entity entity, glm::vec3 position) {
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auto* interpolation = m_registry->try_get<EntityPositionInterpolation>(entity);
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if(interpolation == nullptr) {
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spdlog::warn("Attempt to add position for non-registered entity {}", (uint32_t)entity);
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return;
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}
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interpolation->push(Clock::now(), position);
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}
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glm::vec3 EntityPositionInterpolator::get_position_for_entity(entt::entity entity) {
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auto* interpolation = m_registry->try_get<EntityPositionInterpolation>(entity);
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if(interpolation == nullptr) {
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spdlog::warn("Attempt to get position for non-registered entity {}", (uint32_t)entity);
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return glm::vec3();
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}
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auto now = Clock::now() - std::chrono::milliseconds(m_bufferingIntervalInMillis);
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auto [from, to, value] = interpolation->get_values_around(now);
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return glm::mix(from, to, value);
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}
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void EntityPositionInterpolator::update() {
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m_registry->view<EntityPositionInterpolation, Transform>()
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.each([&](const auto entity, const EntityPositionInterpolation& interpolation, Transform& ts) {
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auto now = Clock::now() - std::chrono::milliseconds(m_bufferingIntervalInMillis);
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auto [from, to, value] = interpolation.get_values_around(now);
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ts.set_position(glm::mix(from, to, value));
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});
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}
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}
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