Schlangenprogrammiernacht GPN19

spn19.cpp

// You can use the entire C/C++ standard library, just add the relevant
// #includes. We recommend math.h ;-)
#include <algorithm>
#include <string>
#include "usercode.h"

/*
 * This is your bot's startup function. Here you can set your snake's colors,
 * set up persistent variables, etc.
 */
bool init(Api *api)
{
    // remove the default color
    api->clearColors();

    // - .... .     --. .- -- .
    api->addColor(255, 255, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(0, 0, 0);
    api->addColor(255, 255, 0);
    api->addColor(0, 0, 0);
    api->addColor(0, 0, 0);

    // indicate successful startup. If anything goes wrong,
    // return false and we'll clean you up.
    return true;
}

/*
 * This function will be called by the framework on every step. Here you decide
 * where to move next!
 *
 * Use the provided Api object to interact with the world and make sure you set
 * the following outputs:
 *
 * - api->angle: Set your relative movement angle
 * - api->boost: Set this to true to move faster, but you will loose mass.
 *
 * The Api object also provides information about the world around you. See the
 * documentation for more details.
 */
bool step(Api *api)
{
    const IpcSelfInfo *me = api->getSelfInfo();
    bool enemyDetected = false;
    ipc_real_t evadeAngle = 0.0;
    // check for other snakes
    for(size_t i = 0; i < api->getSegmentCount(); i++) {
        const IpcSegmentInfo &seg = api->getSegments()[i];

        if(!seg.is_self && seg.dist - seg.r < me->segment_radius + me->sight_radius * 0.20) {
            // you can send log messages to your browser or any other viewer with the
            // appropriate Viewer Key.
            //api->log(std::to_string(seg.dist).c_str());
            enemyDetected = true;
            evadeAngle = -1.0 * seg.dir;
            break;
        }
    }

    ipc_real_t foodAngle = 0.0;
    //ipc_real_t foodValue = 0.0;
    size_t maxFoodIndex = 100;
    // check for food
    //api->log(std::to_string(api->getFoodCount()).c_str());
    for (size_t i = 0; i < std::min(api->getFoodCount(), maxFoodIndex); i++) {
        const IpcFoodInfo &food = api->getFood()[i];
        //foodValue += food.val;
        if (food.dist > me->consume_radius) {
            //api->log(std::to_string(food.dist).c_str());
            foodAngle += food.dir * (food.val / 10.0) * (me->consume_radius / food.dist);
        }
    }

    if (enemyDetected) {
        api->angle = evadeAngle;
    } else {
        api->angle = foodAngle;
    }

    // Signal that everything is ok. Return false here if anything goes wrong but
    // you want to shut down cleanly.
    return true;
}