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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46
votes
7answers
11k 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." ...
89
votes
12answers
55k 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 ...
8
votes
3answers
12k 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 objects position like this: ...
8
votes
2answers
6k views

Interaction between engine parts

I want to ask a question about how the information exchange between game engine parts should be implemented. The engine is separated in four parts: logic, data, UI, graphics. In the beginning I made ...
13
votes
2answers
10k 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 ...
-1
votes
2answers
320 views

What is a Game Engine? [duplicate]

I am new to Game Development, All I have developed is some 2d Games, using Game Maker by YoYo Games. There game development is much more easy, just as simple as Drag and Drop. But, Now I wish to ...
8
votes
1answer
999 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 ...
12
votes
1answer
2k 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 ...
102
votes
9answers
6k 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 ...
36
votes
7answers
15k 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 ...
29
votes
2answers
4k 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 ...
21
votes
4answers
4k 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 ...
12
votes
4answers
3k views

Programming the combat sequence in a role playing game

I'm trying to write a short "game" where a player goes around and fights monsters but I have no idea how to handle the combat. For example, say I have a "Warrior" and a "Troll". How do the two fight ...
10
votes
3answers
3k 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 / ...
6
votes
1answer
3k 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. ...
12
votes
4answers
19k 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? I only care about horizontally and ...
7
votes
2answers
3k 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 ...
10
votes
2answers
791 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 ...
8
votes
3answers
1k 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 ...
5
votes
2answers
3k 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
votes
2answers
3k 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 ...
3
votes
1answer
435 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 code for DFS ...
8
votes
3answers
484 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 : ...
1
vote
1answer
76 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 ...
4
votes
1answer
319 views

How should I track real-time resource generation in a client-server scenario?

I am currently building a game that has a "City" entity. These cities generate and consume resources such as food variably over a period of time. I need to be able query the server often to find ...
2
votes
2answers
651 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 ...
19
votes
4answers
11k views

A list of game mechanics

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 ...
15
votes
3answers
1k 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 ...
26
votes
20answers
3k views

Are there many games involving the manipulation of water?

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; ...
8
votes
1answer
2k 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. ...
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 ...
19
votes
4answers
5k 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 ...
7
votes
2answers
575 views

How to implement special weapon and armor effects (ex: vampiric, holy, damage shield, thorns)?

I'm working on the inventory system for my game, and am interested in how do I implement additional weapon and armor properties that are not just damage or armor? If all I have is damage and armor, ...
20
votes
5answers
4k 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 ...
18
votes
5answers
1k 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. for every frame handle ...
11
votes
6answers
5k 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 ...
11
votes
4answers
22k 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 ...
8
votes
2answers
9k views

How do I render terrain in a 2.5D perspective, like in the game Don't Starve?

I have experience in making 2D side scroller games such as Terraria, but now I want to challenge myself and make a game that has a 2.5D perspective. The game I am trying to mimic is Don't Starve. ...
1
vote
1answer
571 views

Random Placement of Objects on a Tilemap

I have read many topics on random world generation on this site and others, and I roughly understand most of it. What I can't see is how to randomly place objects on the generated tile map I get. Say ...
26
votes
8answers
4k views

What makes a good jump scare?

I am working on a game and would like to include a few jump scares. So here is a rather simple question — What makes a good jump scare and when and how should they happen?
0
votes
5answers
2k views

Collision detection logic

Edit 2 In the following picture sprite1 (the red square) is hitting the platform from the left, so: sprite1_rightEdge>platformSprite leftEdge would be true, so I can simply reposition ...
9
votes
3answers
557 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 ...
6
votes
1answer
211 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
3answers
562 views

Building an instance system

I am looking into how to design an instance system for the game I am working on. I have always wondered how these are created in games like World of Warcraft, with its instances (dungeons/raids/etc). ...
5
votes
2answers
130 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
499 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 ...
2
votes
1answer
3k views

Which all are the best Android 2D Java based gaming libraries / frameworks? [duplicate]

Possible Duplicate: Are there any 2D gaming libraries/frameworks/engines for Android? Which all are the best and top using open source java 2D Gaming libraries for Android?I had already ...
2
votes
1answer
783 views

Building different game objects (EG Spells, Items,) for an rpg game

I believe the best way to manage item data would be to use xml? For spells would the best option be to create a class (EG Fireball) and define all of the parameters inside of that class? Like ...
6
votes
2answers
168 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 ...
5
votes
3answers
227 views

What are the different ways to balance an online multiplayer game where user spend different amounts of time online?

Let's consider a game where every player is building his own medieval town. To make this question simple, let's assume that, on this persistent world, some people will play an hour every day (heavy ...