💿🐜 Antkeeper source code
https://antkeeper.com
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197 lines
5.6 KiB
197 lines
5.6 KiB
/*
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* Copyright (C) 2021 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "entity/commands.hpp"
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#include "entity/components/model.hpp"
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#include "entity/components/transform.hpp"
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#include "entity/components/copy-transform.hpp"
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#include "entity/components/snap.hpp"
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#include "entity/components/parent.hpp"
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#include "entity/components/celestial-body.hpp"
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#include "entity/components/terrain.hpp"
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#include "entity/components/name.hpp"
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#include <limits>
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namespace entity {
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namespace command {
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void translate(entity::registry& registry, entity::id eid, const float3& translation)
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{
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if (registry.has<component::transform>(eid))
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{
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component::transform& transform = registry.get<component::transform>(eid);
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transform.local.translation += translation;
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}
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}
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void move_to(entity::registry& registry, entity::id eid, const float3& position)
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{
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if (registry.has<component::transform>(eid))
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{
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component::transform& transform = registry.get<component::transform>(eid);
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transform.local.translation = position;
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}
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}
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void warp_to(entity::registry& registry, entity::id eid, const float3& position)
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{
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if (registry.has<component::transform>(eid))
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{
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component::transform& transform = registry.get<component::transform>(eid);
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transform.local.translation = position;
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transform.warp = true;
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}
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}
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void set_scale(entity::registry& registry, entity::id eid, const float3& scale)
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{
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if (registry.has<component::transform>(eid))
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{
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component::transform& transform = registry.get<component::transform>(eid);
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transform.local.scale = scale;
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}
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}
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void set_transform(entity::registry& registry, entity::id eid, const math::transform<float>& transform, bool warp)
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{
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if (registry.has<component::transform>(eid))
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{
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component::transform& component = registry.get<component::transform>(eid);
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component.local = transform;
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component.warp = warp;
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}
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}
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void place(entity::registry& registry, entity::id eid, entity::id celestial_body_id, double altitude, double latitude, double longitude)
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{
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if (registry.has<component::transform>(eid))
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{
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double x = 0.0;
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double y = altitude;
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double z = 0.0;
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if (registry.has<component::celestial_body>(celestial_body_id))
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{
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const component::celestial_body& celestial_body = registry.get<component::celestial_body>(celestial_body_id);
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x = longitude * math::two_pi<double> * celestial_body.radius;
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z = -latitude * math::two_pi<double> * celestial_body.radius;
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if (registry.has<component::terrain>(celestial_body_id))
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{
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const component::terrain& terrain = registry.get<component::terrain>(celestial_body_id);
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if (terrain.elevation != nullptr)
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{
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y += terrain.elevation(latitude, longitude);
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}
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}
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}
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component::transform& transform = registry.get<component::transform>(eid);
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transform.local.translation = math::type_cast<float>(double3{x, y, z});
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transform.warp = true;
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}
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}
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void assign_render_layers(entity::registry& registry, entity::id eid, unsigned int layers)
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{
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if (registry.has<component::model>(eid))
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{
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component::model model = registry.get<component::model>(eid);
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model.layers = layers;
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registry.replace<component::model>(eid, model);
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// Apply to child layers
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registry.view<component::parent>().each(
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[&](entity::id eid, auto& component)
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{
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if (component.parent == eid)
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assign_render_layers(registry, eid, layers);
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});
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}
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}
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void bind_transform(entity::registry& registry, entity::id source, entity::id target)
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{
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component::copy_transform copy_transform = {target};
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registry.assign_or_replace<component::copy_transform>(source, copy_transform);
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}
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math::transform<float> get_local_transform(entity::registry& registry, entity::id eid)
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{
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if (registry.has<component::transform>(eid))
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{
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const component::transform& component = registry.get<component::transform>(eid);
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return component.local;
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}
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return math::identity_transform<float>;
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}
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math::transform<float> get_world_transform(entity::registry& registry, entity::id eid)
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{
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if (registry.has<component::transform>(eid))
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{
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const component::transform& component = registry.get<component::transform>(eid);
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return component.world;
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}
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return math::identity_transform<float>;
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}
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void parent(entity::registry& registry, entity::id child, entity::id parent)
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{
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component::parent component;
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component.parent = parent;
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registry.assign_or_replace<component::parent>(child, component);
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}
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void rename(entity::registry& registry, entity::id eid, const std::string& name)
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{
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registry.assign_or_replace<component::name>(eid, name);
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}
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entity::id find(entity::registry& registry, const std::string& name)
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{
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auto view = registry.view<component::name>();
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for (auto eid: view)
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{
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if (view.get(eid).id == name)
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return eid;
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}
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return entt::null;
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}
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entity::id create(entity::registry& registry)
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{
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return registry.create();
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}
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entity::id create(entity::registry& registry, const std::string& name)
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{
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auto eid = registry.create();
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rename(registry, eid, name);
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return eid;
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}
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} // namespace command
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} // namespace entity
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