le-de-France is densely populated and . CodinGame Spring Challenge 2022 18,288 CodinGamers have registered to this contest Details Leaderboard Top 100 Companies Top 100 Schools share The contest is over! assess locally if a change in the code improved the bot. get closer to a spider such that the hero can hit it, for each hit point, the spider's health decreases, and the player's mana increases. The attacker routine on the other hand had a lot of different parameters. It was a lot of fun and many memorable battles (and bugs) were had. L'objectif est de dvelopper un programme informatique intelligent (bot) qui devra jouer un jeu et gagner ses adversaires.Voir les autres vidos de ce challenge : Jour 1 - https://youtu.be/76HvmftsOGo - Dcouverte du jeu WOOD2Jour 2 - https://youtu.be/tZLt7F5EmhQ - Dcouverte du jeu BRONZEJour 2 - https://youtu.be/XyNTMwsKPm8 - Exploration BrouillardJour 2 - https://youtu.be/pR0WMyX0skc - Exploration Brouillard (suite)Jour 3 - https://youtu.be/JdhurSq5NcI - Exploration Brouillard (suite)Jour 3 - https://youtu.be/utOJjw8d7BE - Implmentation des sortsJour 4 - https://youtu.be/ltZmntZhFHU - Progression BRONZEJour 4 - https://youtu.be/GqP07W3PR1Y - Ouverture de la ligue SILVERJour 7 - https://youtu.be/_3OFqk4APqQ - Ligue GOLDJour 7 - https://youtu.be/MpoKenCYqOQ - Ligue GOLD (suite)Jour 9 - https://youtu.be/RXqeTZzQpMA - Refactoring, Debug et AdaptativitJour 11 - https://youtu.be/koanoW_p4MM - Top GOLD Rush AttackJour 12 - https://youtu.be/h2bQNGcZuMQ - Top GOLD AttackJour 12 - https://youtu.be/DcrV8kX8Shk - Top GOLD Attack (suite)Jour 12 - https://youtu.be/j_LYLDWFJ8M - Passage LEGEND ?Epilogue - https://youtu.be/cbKJ73ajs3g - Classement et Tutoriel Multijoueur The programming language was free of choice. TBC SHIELD would render the target immune to spells for 12 rounds, WIND would push all entities around the caster towards a single point, CONTROL would force the target to move towards a single point for 1 round (if the target was a monster and that monster wasnt already targeting a base, it would then continue in the given direction). Submits in the arena are so slow during a contest that you have to wait hours to assess the effect of a single change. In such a game, going deeper in the search tree is enough to pick the best action to lead to a sure victory. Pretty much everyone coded a routine to wind away large packs of monsters going towards the base, either as a last resort or to prevent a group WIND in the following turns. The weights didnt change much with the number of defenders, outside of self-shields and patrol routes. A tag already exists with the provided branch name. I enjoy this organization as I find it easier to add considerations, tweak the goal assignment, or test new tactics to implement assigned goals. I failed to obtain something usable due to bugs in the referee, incomplete information, weird logic, and fatigue (or maybe just fatigue ). I'm inefficient at heuristic-friendly games (I mean games where usual search algorithms are not overpowered), as I tend to lose myself in the task complexity. 4CodinGame/SpringChallenge2022 issues, can help you solve programming problems. Solve games, code AI bots, learn from your peers, have fun. The 3 attackers version wasnt ever chosen by my code so it didnt see much use. No, I dont know anything new. The 1 attacker version was intended to counter overaggressive bots and it would focus on controling the most monsters into the enemy base to get a quick win (it would also spam-control the lone defender (if any) away to let monsters do the job). If no monster was found, it would patrol the edge of the base, trying to farm mana without getting too far. Ashamed by the bot replays in the legend league, I decided to spend some time on Sunday to fix the attacker. As of Tuesday 1 November 2022, take a stock on the news in Paris and its surroundings, the latest . GitHub - gardir/codingame-spring-challenge-2022 main 2 branches 0 tags Code 2 commits Failed to load latest commit information. CodinGame Spring Challenge 2022 CodinGame Spring Challenge 2022 AI7695(18288)199 . Two players controls a team of heroes. www.codingame.com. Discover the latest news regarding the Covid-19 pandemic spreading in Paris and Ile-de-France. Bienvenue sur cette srie de live consacre au \"Spring Challenge 2022\", tournoi organis par http://codingame.com. The defender routine had only one goal : keeping monsters away from the base. This led to very interesting strategies : some people shielded monsters in their own base to prevent them from being WINDed in and get enough time to kill them by attacking normally. CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics. I took care of that point by casting wind on spiders just before they entered my base. A tag already exists with the provided branch name. Those heroes can move around a large map to protect a base from spiders' attacks. 3 anos atrs. That was enough to reach the bronze league. On Legends there was no Boss and players where ranked with an ELO-like system. The twist is that the heroes can only attack monsters (who regularly and symmetrically spawn from the edge of the map), not other heroes nor enemy base. I decided the submit the bot to the arena and it passed legend on Saturday, to my great amusement . Instead, I ordered each hero to move at the current position of their assigned spider. --- Join the CodinGame. As in the previous contest, I made a conscient effort to sketch a plan of action to reach my goal. 00:00 - Analyse de l'nonc et implmentation simple 08:30 - Implmentation avec un Comparator et Collections.sort 24:30. My initial objective for that contest was to pass legend and be in the top 100. The next two points, i.e. If nothing happens, download GitHub Desktop and try again. See more at their website To be updated. codingame.com. guard, stay in the base because an attacker is spotted, and handle spider threats if any, handle attacker, when an attacker is about to mess my defense (e.g. Since heroes move twice as fast as spiders, I did not compute interception trajectories to reach a spider. Contribute to Glagan/Spring-Challenge-2022 development by creating an account on GitHub. Codingame has a new challenge this Spring, and we talk about the rules and strategies that can be applied to make an AI bot.Codingame. On Legends there was no Boss and players where ranked with an ELO-like system. Next, I analyze this data to assign each hero one of the following goals: Finally, for each assigned goal I use the allowed time to find the best way to implement it. Monsters within a certain radius of a players base will be attracted to it, and if they are not killed before reaching it they do 1 hit point of damage. If no spider is in range for the next two turns, I move the hero to a hardcoded position where it has an increased chance to spot spiders entering the map after being spawned or spiders that will soon target my base. The 2 attackers version implemented the infamous wind cannon with some tweaks. Spiders move from four spawning points outside the game map, with initial random direction, and initial health increasing over time. Also, the given referee on GitHub is in java, and I have not practiced that language since my engineering school days, I neved used the referee locally. The two spiders are in the area of effect and are pushed 2200 units upward. I lose a lot of matches to players that were more often outside of the base than me. When I code heuristics, it quickly becomes an unmaintainable spaghetti plate. Effects of casting a wind spell in the up direction. After a while (or a certain amount of mana was reached), they would both go towards an edge of the enemy base and stand there. I will focus on producing better bots faster. Some others went for 3 attackers, spamming CONTROL on the defender while pushing monsters in a reckless abandon trying to win faster than the other guy. I used Python, of course. L'objectif est de dvelopper un programme . I may need to investigate how to make a referee compatible with brutaltester myself. TBC. The timeout given was very generous so there was no need to use a more optimised language, unless you were going for some search tree shenanigans. I would first patrol the map for a given number of rounds (or until I spotted the enemy making a move) trying to maximize mana farming by putting my heroes where they could hit the most monsters at once. mycode.prepbytes.com. In this contest, I could not find any trivial way to ensure a bot improved. However, this requires a much faster submission. The base visibility radius is 6000 space units, so an opponent could send spiders directly to the base center in one turn, without being seen. I tend to struggle with heuristics for four reasons: Let us start with the first point. The Clash of Code section isn't a big of a deal since I'm used to speed-solve easy problems in CodeForces. A player whose base drops to 0 hit points obviously loses the game. Doing so generates mana, which is used to cast spells. We were beaten by the University of Wroclaw, who proved to be formidable opponents throughout the challenge. RTSMOBA*1. I tried to code an attacker, but I did not have enough free time to work on the contest anymore. AI . As my heroes followed spiders toward my base, they did not farm wild mana. Source code for CodinGame's Spring Challenge 2022 event. It was like a giant game of rock paper scissors. 12.11 Sat 00:00 24:00. 10 days Kick Start Registration Closes 1 . Overall Im pretty happy with the results for my first codingame challenge ever ! The challenge is still available as a bot battle minigame so I wont disclose any code here but Ill speak about strategy. Here is the main method of the bot: Nothing fancy yet: that function helps me to separate the code for defenders and the attacker while estimating how much time I could allocate to each hero. since the bot behavior is unpredictable, the win rates would be random. Instead, I spent many hours figuring out how to install java, the game made compatible with brutaltester, and its dependencies, run it locally, and use Magus' brutaltester. Broadcasted live on Twitch -- Watch live at https://www.twitch.tv/johncm99 I ranked 264th out of 7695 players, thus reaching the middle of the pack in the Legends League. Having a code organization and a way to test a bot locally, it was time to design a better bot to reach the legend league. The principle was the same : for a given hero, get all of his possible actions, weight them against the game state and execute the best scoring course of action. Solve games, code AI bots, learn from your . But this is not only due to the sluggishness of submissions. Currently its at only 5% for Haxe. I feel this is generally the case for heuristics-friendly games. The challenge pits two players against each other on a rectangular map. My initial objective for that contest was to pass legend and be in the top 100. Based on that info, I would assign the attacker role to some of my heroes (theoretically I could end up with no attacker or no defender but I dont think such a case ever arose) and the defender role to the rest of them. farm, deal damage to spiders to increase wild mana. disaster. You signed in with another tab or window. Prove your skills, win prizes, practice coding with other coders, have fun. Writing the defense code required a lot of discipline as the weakness of my arena bot was clearly the attack. However, I knew it would remain quite far for the gold boss to reach the legend league. Before the challenge, I grinded CodinGame to get a good grasp of what to expect during the challenge. If the spider reaches the central part of a base, the corresponding player loses one life. https://www.codingame.com/contests/spring-challenge-2022/ Community starter AIs are located here: https://github.com/CodinGame/SpringChallenge2022/tree/main/starterAIs Introduction video by Mathis Hammel: https://youtu.be/MyHjWftmMfQ The remaining issue was how to use the local arena to validate that a change improved the bot performance? 12.11 Sat 03:00 03:00. I then run out of time to improve my bot to secure my place in the top 100 or reach an even better ranking. This contest was a very nice one. By deciding actions to perform for defenders first, I can ensure I won't lack mana to cast wind to avoid losing a life. Some people might be able to handle that mess, but that's not my case . Sticking to that plan helped me to remain sane and progress toward the legend league. Codingame facile - Tempratures [ Java ]. I decided to write first an efficient defensive bot, that uses only two heroes (the last one remains idle). Anybody interested in joining? first, spiders that are targetting my base, sorted by increased distance to my base. My final ranking. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. If I had enough mana, I also would CONTROl far away monsters that would at one point come in range of the base and divert them to either the center of the enemy base or my own wind cannon starting point. CodinGame Coding Games and Programming Challenges to Code Better Join our next contest for free now! This article gathers my feedback on the contest and the steps I followed to increase my ranking. For reference, a spider moves 400 units each turn, so the wind spells are quite effective to expel spiders. Broadcasted live on Twitch -- Watch live at https://www.twitch.tv/johncm99 README.md main.py README.md Codingame spring challenge 2022 A repy for my attempt on the spring challenge at codingame in 2022. There was a problem preparing your codespace, please try again. I ignored the FARM bot, as it was too much at an advantage with three heroes to farm wild mana and defend. So I started to code a simulation that would serve for validation and maybe a search algorithm in C++. www.codingame.com. I was hoping to get more Haxe people to CodinGame. CodinGame Spring Challenge 2022. First, collect data to consider for assigning goals to heroes. That meant that I could assign my idle hero to attack without weakening my defense. control spiders toward the enemy base to increase the defense difficulty, control defenders outside of the base to give a higher chance to spiders to reach the opponent's base. Now, spiders are almost always outside of my base, so I naturally farm wild-mana with the same algorithm. It helped me with my difficulties to craft and combine conditions into a consistent behavior. I had a lot of specific little tweaks for defense : if one or more attacker is nearby and the defender is alone (or far from the other), weight very heavily the self-shield because a single CONTROL could spell (get it ?) General Strategy. Speaking of rock paper scissors, I didnt expect the wind cannon strategy to be so dominant so I went for a more adaptative bot. The program received data each turn describing the state of the battlefield and must output 3 lines, each one describing an heros action for the turn. I am good at optimizing, so my algorithm performs more iterations per turn than other players, mitigating my lack of heuristic to guide the search. They each get 1 base with 3 hit points (on opposed corners) and 3 heroes who can move, attack and use spells. 10 days Kick Start Round H . Anybody interested in joining? (i.e. second, spiders that would eventually target my base if they maintain their direction, sorted by increased distance to my base. codingcompetitions.withgoogle.com. send that spider to the opponent's base central point by casting a wind spell. codingame:Spring Challenge 2022 CodingameAI Spring Challenge 2022 Spring Challenge 2022 macOS 1. I continued to improve the defense code until the win rates against all mixed versions were above 20%, meaning my defense was good enough to face sustained attacks. I mostly focused on search algorithms before that contest, so tuning and evaluating heuristics remained quite obscure to me. Spider Attack is the official name of the game used in the Spring Challenge 2022 Protect your base from monster attacks and outlive your opponent. Its a great resource to learn about game programming and it would be cool to increase that Haxe demand. Other improvements include calculating 2 turns in advance for a quick setup, moving into position when possible rather than spending 10 mana winding a monster to the right place, going back to farming mode when mana was scarce and an utility to self-shield given the defender(s) history of controling or winding me out. Use Git or checkout with SVN using the web URL. Let's focus on the defense function to illustrate this organization. CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics. Contribute to fatmage/CodinGame-Spring-Challenge-2022 development by creating an account on GitHub. That organization may sound trivial to some or useless to others. CodinGame-Spring-Challenge-2022 My code for CG Spring Challenge 2022 Details can be read in my blog https://tzaph.blogspot.com/2022/05/my-experience-codingame-spring.html About My code for CG Spring Challenge 2022 Resources Readme Stars 0stars Watchers 1watching Forks There are many ideas I have not tested or improvements I have not done. There were a lot of refinements to this : some people played with 3 defenders, trying to disrupt the so-dubbed wind cannon setup while waiting for the lone defender to be overwhelmed by monsters. For farming, I use a Monte-Carlo algorithm to find the next two moves that will maximize the collected mana. I would WIND out packs of monsters or enemy getting 1) too close to the base or 2) dangerously close to each other, as that was probably a setup for a wind cannon. defend, to handle spider threats while keeping an eye on what an attacker could do. For search-friendly games, you can get a good estimation of the improvement with the win rate of the new version versus the best to date version. combine those conditions and scores to create a consistent behavior, e.g., sometimes an attacker is less of a threat than a shielded healthy spider near the central part of my base, but how to quantify it? Rankings. I needed to find a way to organize my code before rewriting a complete bot and reaching the legend league. Both players used the classical 2-defenders 1-attacker strategy. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. I managed to remain in the top 100 up to Monday morning, but my bot did not perform well in the general resubmission. CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics. Are you sure you want to create this branch? Apr 21, 2022 263 Dislike Share Save CodinGame 4.54K subscribers Play the Spring Challenge now for free on CodinGame: https://www.codingame.com/contests/sp. Codingame spring challenge 2022. It's so much simpler when you have the actual referee code. Rated. The Optimization section is a bit hard for me as heuristics related . Bienvenue sur cette srie de live consacre au "Spring Challenge 2022", tournoi organis par http://codingame.com. When the attack phase was triggered, they would move into a position close to the edge of the enemy base, controling every monster in their path. This increased the difficulty for defenders without cooperation to farm wild-mana without losing a life. CodinGameSpring Challenge 2022AI18,2883 CodinGame The situation would be worse with fewer matches to measure a bot performance. *2. Second, analyze that data to produce goal assignments for each available hero. cast a shield spell on spiders directed toward the enemy base, such that they are insensitive to wind and control for 12 turns. The le-de-France (/ i l d f r s /, French: [il d fs] (); literally "Isle of France") is the most populous of the eighteen regions of France.Centred on the capital Paris, it is located in the north-central part of the country and often called the Rgion parisienne (pronounced [ej paizjn]; English: Paris Region). I felt ashamed I never tried to do it before. When a monster entered their reach, they would both spam WIND towards the enemy base to push it to the center so fast the enemy heroes couldnt react. The ranking system is already unstable, even more with a heuristic-friendly game. The first step could collect all recently seen opponents near my base, compute the future positions of spiders near my base, store the date at which a spider will leave the map or reach my base center, and collect all my available defenders (not controlled at the current turn). I also wanted to use some linreg to automatically change and determine weights but I lacked the Codingame API to do so, having to change the code by hand on every iteration wasnt feasible. I believed that starting a bot from scratch would be the best solution if I want to reach higher and more stable win rates. Bienvenue sur cette srie de live consacre au "Spring Challenge 2022", tournoi organis par http://codingame.com. They then each had a generic routine (one for defense, one for offense). A meta quickly emerged : 1 hero would patrol the base and defend it for the whole game. Managing Game State. craft conditions and scores with numbers, e.g., what are the criteria to decide an attacker is a threat to our defense and should be removed? L'objectif est de dvelopper un programme . Whenever a spider is inside a player base, it will target that base. I decided to ignore such wind canons, as I thought it won't be necessary to reach the legend league. I usually rely on the full simulation of the game, since my search algorithm would use that simulation code anyway. Each sub-method takes available mana as a parameter and returns how much mana is available for subsequent steps. The challenge worked by leagues (namely Wood 2, Wood 1, Bronze, Silver, Gold and Legend) where you had to defeat a NPC Boss and a fixed amount of players to rank up. It's then nearly impossible for me to tune a condition, combine behaviors or add considerations to the evaluation. When I first saw the game rules, my objective became to pass legend OR be in the top 100 , as I knew that contest would be hard for me: There was a high probability that I would rage-quit this contest. From April 21 to May 2, 2022, there was a programming contest on CodinGame. cast a control spell on the spider to choose what will be its next velocity, preventing it from going toward a base and targetting it. Decreasing the number of matches per submission is not the solution. From April 21 to May 2, 2022, there was a programming contest on CodinGame. The Spring Challenge 2022 at CodinGame. But there doesnt seem to be too much demand. https://www.codingame.com/contests/spring-challenge-2022/ Community starter AIs are . The game mechanics are interesting. I am noticeably slow to write a bot as good as the ones of top 100 players . Here are the simplified rules of the game, named Spider Attack. Not towards the enemy base but right behind the chosen attack spot, so that when they arrive into position, there would be a nice chunk of monsters already waiting to be yeeted into the base. - GitHub - Ajjig/codingame-spring-2022: My first time attending the spring challenges . Fortunately, going to the gold league was easy for this contest, even though I'm struggling with heuristic-friendly games. by casting a wind on a healthy spider toward my base), try to cancel the wind effect while throwing the attacker out of my base. Hey fellow programmers! Solve games, code AI bots, learn from your peers, have fun. Spring Challenge 2022 Heuristics on Spider Attack Posted by Tom Delame on May 14, 2022 . Online programming contest and hackathon " CodinGame Spring Challenge 2022". Haxe is still not officially supported but there is a small extern that implements the CodinGame commands for the JavaScript, Python and Lua Targets. My school, 42, ranked 2nd out of 303 registered. Each sub-method is composed of three steps. I will play with such organizations in other games to overcome my aversion to heuristic-friendly games . crafting and combining conditions/scores, heavily depend on the testing capabilities. So attacking the opponent seems a better tactic: Heroes can also be shielded, such that they won't be controlled or winded out by the opponent. When all three heroes of the same player cast wind spell in the same area, affected entities are pushed away for 6600 space units. Players play through a program they write beforehand, with no input nor command during the game. Do you Know if haxe will be officialy supported soon ? Having a heuristic-friendly game is not a bad idea as it seems easier for beginners or non-professional developers. www.codingame.com. Fun fact, with a really borked attacker hero, I already met that objective. Without testing, I would add bugged behaviors to the bot, such that it would become impossible to check if a change improves the bot: Next, I wrote the code for the attacker, testing one idea at a time by measuring the win rates against the five bot versions. TBC. However, this organization helped me to overcome the code mess I usually produce when working with heuristics. Bot for the CodinGame 2022 Spring Challenge. That's not a valid option during a time-limited event. CodinGame Spring Challenge 2022 Events parallax (0xA3 Monad) April 21, 2022, 5:42pm #1 The yearly CodinGame Challenge started today. I used a greedy algorithm to defend, a simple trick to increase the wild-mana farmed, and a stationary attacker. The challenge worked by leagues (namely Wood 2, Wood 1, Bronze, Silver, Gold and Legend) where you had to defeat a NPC Boss and a fixed amount of players to rank up. The yearly CodinGame Challenge started today. Once a player loses three lives, the game is over. 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