Questions tagged [game-mechanics]

A set of rules that govern an in-game experience. Game design is an effort to come up with game mechanics that allow for players to have a fun and engaging experience.

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69
votes
9answers
26k views

What's a way to implement a flexible buff/debuff system?

Overview: Lots of games with RPG-like statistics allow for character "buffs", ranging from simple "Deal 25% extra damage" to more complicated things like "Deal 15 damage back to attackers when hit." ...
120
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12answers
121k views

How to develop RPG Damage Formulas?

I'm developing a classical 2d RPG (in a similar vein to final fantasy) and I was wondering if anyone had some advice on how to do damage formulas/links to resources/examples? I'll explain my current ...
22
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3answers
33k views

Moving from A(x,y) to B(x1,y1) with constant speed?

I currently have something like: float deltaX = point0.getX() - point1.getX(); float deltaY = point0.getY() - point1.getY(); And every 0.01 seconds I refresh my ...
10
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1answer
9k views

How to balance experience gain in an RPG

I am currently developing an RPG game with a classic experience-points and levelup mechanic. The player kills monsters, gains experience points, levels up when they collect enough and become stronger. ...
34
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2answers
10k views

How do I make a character capable of walking on walls?

I am trying to get a character to move like a spider: Given a rising slope which a ball would normally not be able to roll up, the spider would slowly crawl up. Similarly, given a mid-air rectangular ...
22
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2answers
8k views

How to design context menus based on whatever the object is?

I'm looking for a solution for a "Right Click Options" behaviour. Basically any and every item in a game, when right clicked, can display a set of options based on whatever the object is. Right ...
12
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1answer
3k views

Programming a climbing system like tomb raider

I was wondering if anyone knew or had knowledge of how to program a climbing system like the one found in tomb raider/uncharted. I had thought of just having bounding boxes at all the climbable ...
108
votes
9answers
8k views

What makes a computer opponent feel alive?

Are there any recommended blogs or whitepapers that talk about making the AI in an RPG game feel more real? (Specifically in turn based combat.) I know something must be out there, but I am only ...
25
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4answers
6k views

“The Game Object” - and component-based design

I've been working on some hobby projects the last 3-4 years. Just simple 2d and 3d games. But lately I have started a bigger project. Soo in the last couple of months I've been trying to design a game ...
10
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2answers
9k views

Using L-Systems to procedurally generate cities

I'm currently making an app that focuses a lot on procedurally generated content. So far, I've successfully implemented the procedural generation of the terrain and shape of a map using simplex noise. ...
10
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3answers
6k views

How to implement buffs / debuffs / temporary stat changes in an RPG? [duplicate]

Possible Duplicate: What’s a way to implement a flexible buff/debuff system? In the context of creating an engine for a RPG I want to implement a generic way to give effects / buffs / debuffs to ...
19
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4answers
7k views

Best strategy (tried and tested) for using Box2D in a real-time multiplayer game? [duplicate]

I am currently tackling real-time multiplayer physics updates for a game engine I am writing. My question is how best to use Box2D for networked physics. If I run the simulation on the server, should ...
20
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5answers
10k views

Spreadsheets in Game Design?

There have been two instances from the past two weeks that I've heard from well known successful game developers that they use spreadsheets when designing games. The first being David Whatley in ...
8
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2answers
4k views

What do you use to support multiplayer turn-based network game for iOS and Android games?

If I'm doing a turn-based card game, what kind of technique do you use to support multiplayer gameplay over Internet? Is it socket? If it's socket, which SDK (CoronaSDK etc.) can provide solid ...
7
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3answers
2k views

Designing AI in a 1 on 1 battle similar to Pokemon

I am designing a game where the battle system is similar to Pokemon. That is, a 1 on 1 battle with only a few (4-6) moves to choose from. As the game is taking shape, I'm starting to think about some ...
10
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3answers
2k views

Showing range on hexagonal grid

Here is the situation. I have hexagonal board,and a unit on it,with speed or move value 4.Diffrent terrain has a diffrent cost.When i click on the unit,game should show me a move range. My solution ...
5
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2answers
5k views

How to make a scrolling background

I'm making a Shooter game like "1943" and "Jamestown". I am Using Visual Basic 2010. I was wondering how I would make the background scroll up to simulate moving forward. I would also like it to ...
6
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2answers
4k views

Bubble shooter search alghoritm

So I have a Matrix of NxM. At a given position (for ex. [2][5]) I have a value which represents a color. If there is nothing at that point the value is -1. What I need to do is after I add a new point,...
5
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1answer
692 views

Verify which bubble is connected to top using DFS

I am working on a bubble shooter game in this game i have implemented searching using DFS as suggested in this link, and this is working fine. Update Here is my ...
4
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4answers
1k views

How to design a turn-based game which is easy for humans but difficult for AI?

Until recently, Go used to be of the last bastions of turn-based no information-hiding games where world-class human players could not be defeated by computers. But now this bastion has fallen, as the ...
11
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2answers
767 views

How do I make good guy attacks only hit bad guys and vice versa?

My game has many different type of good guys and many different type of bad guys. They will all be firing projectiles at each other but I don't want any accidental collateral damage to occur for ...
3
votes
3answers
2k views

How do I write a wave-spawning system for a shoot-em-up?

I recently played Knightmare Tower and was amazed by the way how different monsters are beign spawned. I'm aware of time-based and count-based spawing systems in shoot-em-ups. Count-based systems ...
2
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1answer
90 views

How can I assist players navigating narrow grid junctions?

I'm looking for a technique to help the player navigate a narrow path while the character is in constant motion. When changing direction in junctions, it's pretty hard to time the direction change for ...
8
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1answer
1k views

How To Approach 360 Degree Snake

I've recently gotten into XNA and must say I love it. As sort of a hello world game I decided to create the classic game "Snake". The 90 degree version was very simple and easy to implement. But as I ...
45
votes
7answers
28k views

How does pathfinding in RTS games work?

[crossposted from stackoverflow] In a game such as Warcraft 3 or Age of Empires, the ways that an AI opponent can move about the map seem almost limitless. The maps are huge and the position of other ...
23
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3answers
21k views

A list of game mechanics [closed]

I'm trying to compile a list of game mechanics, by which I mean high-level/meta game mechanics like Cooperation, Resource Management, Chance and Time Manipulation rather than low level mechanics like ...
16
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3answers
12k views

How to implement trading card game's “special effects cards”?

I am trying to write a kind of a trading card game here, in some way, it is similar to Magic The Gathering, or the Yu-Gi-Oh! card game. For those of you who are not familiar with it, basically, in ...
15
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3answers
2k views

Peer-to-peer hostless competitive games of chance? [closed]

I'm wondering - have any games been ever created that are: peer-to-peer without one peer being designated as host competitive (not cooperative, players play against one another) provably fair (there ...
28
votes
20answers
8k views

Are there many games involving the manipulation of water? [closed]

I'm in the very, very early brainstorming stages of a game which centers around the manipulation of water and the terrain around it. (i.e., changing the water's state between solid, liquid, gas; ...
40
votes
9answers
5k views

Is it possible to calculate or mathematically prove if a game is balanced / fair?

This question is not focussed on video games but games in general. I went to a boardgame trade fair yesterday and asked myself if there is a way to calculate the fairness of a game. Sure, some of them ...
27
votes
8answers
2k views

In-Game Tutorial Decisions

I'm working on a game with confusing mechanics such as energy storage and the coolant temperature. What is the best way to get a new player learned quickly? What are the pros and cons of different in-...
20
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5answers
2k views

Game actions that take multiple frames to complete

I've never really done much game programming before, pretty straightforward question. Imagine I'm building a Tetris game, with the main loop looking something like this. ...
17
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2answers
18k views

Word list for use in commercial game [closed]

I need a word list to use in a commercial game (even though the game will be free to download) Something like this http://www.puzzlers.org/pub/wordlists/ospd.txt Would be perfect (needs to be ...
11
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6answers
6k views

How do I ensure an appropriate payout ratio for a slot machine?

I have done a lot of research into random number generators for slot machines, reel stop calculations and how to physically give the user a good chance on winning. What I can't figure out is how to ...
12
votes
4answers
27k views

Logic behind a bejeweled-like game

In a prototype I am doing, there is a minigame similar to bejeweled. Using a grid that is a 2d array (int[,]) how can I go about know when the user formed a match? ...
11
votes
5answers
25k views

2D character controller in unity (trying to get old-school platformers back)

This days I'm trying to create a 2D character controller with unity (using phisics). I'm fairly new to physic engines and it is really hard to get the control feel I'm looking for. I would be really ...
9
votes
3answers
1k views

How to build repetition into a game that won't ruin the experience

I am building an Educational technology (Edtech) game that attempts to follow the format of an adventure RPG while teaching foreign languages. Obviously, EdTech games must actually teach, which ...
12
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4answers
3k views

What are the reasons for MMOs to have level caps?

In many MMOs players character progression is artificially capped, e.g. by level 60 or 90 or 100 or whatever. Why do MMOs have these level caps in the first place? Why not just allow characters to ...
12
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3answers
4k views

Attack vs Defence and who is the winner? [closed]

I am in the process of creating a new simple game in mobile and I've spent several days on the following part. For simplicity, let's say that I have two fighters. The only attribute of them is Attack ...
10
votes
3answers
659 views

How to add a sound that an enemy AI can hear?

Given: a 2D top down game Tiles are stored just in a 2D array Every tile has a property - dampen (so bricks might be -50db, air might be -1) From this I want to add it so a sound is generated at ...
7
votes
2answers
2k views

Why have the player pick up loot manually?

From a game-design perspective, I was wondering what the mechanic of manually picking up items off the ground does for the player. Keep in mind that items that fall on the ground can most likely be ...
7
votes
2answers
2k views

Orbital mechanics: orbit as a function of time. Universal variable formulation?

I am trying to model a two dimensional orbit for a two body Kepler problem but have gotten stuck when introducing the time variable. For a satellite with known semi major axis (a), eccentricity (e), ...
6
votes
2answers
482 views

Decoupling input from game states / entity behavior

I'm looking for a way or general best practice advices for decoupling the architecture of my game, in the example below the input from the current game state workflow / entity behavior. While I'm all ...
4
votes
1answer
976 views

Path finding in games

I am writing my term paper about Path finding algorithms in games, and i've got a couple of questions, hopefully you people could help me out with those ;) So, i've done a little bit of searching ...
6
votes
4answers
887 views

Are random events beyond players' control necessary for “strategy” games?

By "random event" I mean critical hits, misses, random variation in some kind of result etc. Examples of these include the accuracy mechanic in XCom; critical hits and accuracy chance in Darkest ...
6
votes
1answer
1k views

Implementing Wall Jumping

I've read this wall jumping question but I'm having trouble implementing it. I've gotten as far as implementing a timer that controls when wall jumping is possible. Right now, if I go up against a ...
5
votes
2answers
330 views

RPG Factions - Friendly/Hostile check

I'm having some trouble checking if one faction is hostile to another faction in my RPG. I'm using enums for my factions and relations but I feel like there's a better way to approach this. Currently ...
2
votes
1answer
11k views

Is flowchart correct way to visualize gameplay?

I made the following flowchart in draw.io. it's just a simple arcade shooter. cardboard zombie pops up, bang, or not. I don't have any official education in game production. So, are there other ...
8
votes
3answers
560 views

Intellectual rights to game concepts

For a client I might be making a small puzzle game about getting a item out of a puzzle. The concept will strongly resemble this game : http://www.alibaba.com/product-gs/355972089/...
7
votes
1answer
1k views

Spaceship interiors: How to approach, implementation-wise?

I'm creating a 3D space game using Ogre3D for graphics with C++ and one of the features is to be able to freely wander around spaceship interiors, but I am lost with how to implement it. Here is what ...