commands.h

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/* Conquer Space
 * Copyright (C) 2021-2025 Conquer Space
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
#pragma once
 
#include <initializer_list>
 
#include "common/components/movement.h"
#include "common/components/orbit.h"
#include "common/universe.h"
 
namespace cqsp::common::systems::commands {
enum class Command {
    CircularizeAtApoapsis,
    CircularizeAtPeriapsis,
    SetApoapsis,
    SetPeriapsis,
    SetInclination,
    MatchPlanes,
    CoplanarIntercept,             // Just intercepts
    CoplanarInterceptAndTransfer,  // Intercepts and matches orbit
    Impulse,
    LandOnBody,
};
 
enum class Trigger {
    // When to trigger the command
    OnEnterSOI,
    OnExitSOI,
    OnManeuver,  // When the previous manuever is executed
    OnCrash,
};
 
struct OrbitTarget {
    components::types::Orbit orbit;
};
 
struct OrbitScalar {
    double value;  // Modifies the orbit by some sort of scalar
};
 
struct OrbitEntityTarget {
    entt::entity target;
};
 
bool VerifyCommand(Universe& universe, entt::entity command);
bool ProcessCommandQueue(Universe& universe, entt::entity body, Trigger trigger);
void ExecuteCommand(Universe& universe, entt::entity entity, entt::entity command_entity, Command command);
void TransferToMoon(Universe& universe, entt::entity agent, entt::entity target);
void LandOnMoon(Universe& universe, entt::entity agent, entt::entity target, entt::entity city);
 
void PushManeuvers(Universe& universe, entt::entity entity, std::initializer_list<components::Maneuver_t> maneuver,
                   double offset = 0);
void PushManeuvers(Universe& universe, entt::entity entity, components::HohmannPair_t hohmann_pair, double offset = 0);
}  // namespace cqsp::common::systems::commands