💿🐜 Antkeeper source code
https://antkeeper.com
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143 lines
4.3 KiB
143 lines
4.3 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 "game/entity-commands.hpp"
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#include "game/components/model-component.hpp"
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#include "game/components/transform-component.hpp"
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#include "game/components/copy-transform-component.hpp"
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#include "game/components/snap-component.hpp"
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#include "game/components/parent-component.hpp"
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#include <limits>
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namespace ec {
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using namespace ecs;
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void translate(entt::registry& registry, entt::entity eid, const float3& translation)
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{
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if (registry.has<transform_component>(eid))
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{
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transform_component& transform = registry.get<transform_component>(eid);
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transform.local.translation += translation;
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}
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}
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void move_to(entt::registry& registry, entt::entity eid, const float3& position)
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{
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if (registry.has<transform_component>(eid))
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{
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transform_component& transform = registry.get<transform_component>(eid);
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transform.local.translation = position;
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}
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}
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void warp_to(entt::registry& registry, entt::entity eid, const float3& position)
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{
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if (registry.has<transform_component>(eid))
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{
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transform_component& transform = registry.get<transform_component>(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(entt::registry& registry, entt::entity eid, const float3& scale)
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{
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if (registry.has<transform_component>(eid))
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{
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transform_component& transform = registry.get<transform_component>(eid);
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transform.local.scale = scale;
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}
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}
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void set_transform(entt::registry& registry, entt::entity eid, const math::transform<float>& transform, bool warp)
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{
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if (registry.has<transform_component>(eid))
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{
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transform_component& component = registry.get<transform_component>(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(entt::registry& registry, entt::entity eid, const float2& translation)
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{
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snap_component component;
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component.warp = true;
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component.relative = false;
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component.autoremove = true;
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component.ray.origin = {translation[0], 10000.0f, translation[1]};
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component.ray.direction = {0.0f, -1.0f, 0.0f};
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registry.assign_or_replace<snap_component>(eid, component);
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}
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void assign_render_layers(entt::registry& registry, entt::entity eid, unsigned int layers)
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{
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if (registry.has<model_component>(eid))
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{
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model_component model = registry.get<model_component>(eid);
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model.layers = layers;
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registry.replace<model_component>(eid, model);
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// Apply to child layers
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registry.view<parent_component>().each(
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[&](auto entity, auto& component)
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{
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if (component.parent == eid)
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assign_render_layers(registry, entity, layers);
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});
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}
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}
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void bind_transform(entt::registry& registry, entt::entity source_eid, entt::entity target_eid)
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{
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copy_transform_component copy_transform = {target_eid};
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registry.assign_or_replace<copy_transform_component>(source_eid, copy_transform);
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}
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math::transform<float> get_local_transform(entt::registry& registry, entt::entity eid)
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{
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if (registry.has<transform_component>(eid))
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{
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const transform_component& component = registry.get<transform_component>(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(entt::registry& registry, entt::entity eid)
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{
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if (registry.has<transform_component>(eid))
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{
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const transform_component& component = registry.get<transform_component>(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(entt::registry& registry, entt::entity child, entt::entity parent)
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{
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parent_component component;
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component.parent = parent;
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registry.assign_or_replace<parent_component>(child, component);
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}
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} // namespace ec
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