#include "commands.hpp"

#include "trace.hpp"

namespace game {
    void ShootCommand::apply(Player *player, State *state) const
    {
        //std::cout<<"apply command " << name() << std::endl;

        // TODO: idea
        // shoot multiple rockets at once or from different positions after
        // level up / upgrade ...
        Missile *missile = new Missile(player, player->ship->position, m_angle, player->speed);

        Trace *trace = new Trace(missile);
        missile->trace = trace;

        player->energy -= player->speed;
        player->missiles.push_back(missile);

        state->addTrace(trace);
    }

    bool ShootCommand::ready(const Player *player, const State *state) const
    {
        (void) state;

        // TODO
        return player->alive && player->energy >= player->speed;
        //return player->alive;
    }

    void ChangeNameCommand::apply(Player *player, State *state) const
    {
        // discard if not unique
        for (const Player *other : state->players) {
            if (m_name == other->name) {
                std::cout << "name '" << m_name << "' already given to player #" << other->id << std::endl;
                return;
            }
        }

        player->name = m_name;
    }

    void SetSpeedCommand::apply(Player *player, State *state) const
    {
        (void) state;
        player->speed = m_speed;
    }

    void ClearTracesCommand::apply(Player *player, State *state) const
    {
        size_t i = 0;
        while(i < state->traces.size()) {
            Trace *trace = state->traces[i];
            if (trace->missile == nullptr && trace->missile->player == player) {
                state->deleteTrace(trace);
            } else {
                i++;
            }
        }
    }
}