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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1
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2answers
900 views

Getting 2D Platformer entity collision Response Correct (side-to-side + jumping/landing on heads)

I've been working on a 2D (tile based) 2D platformer for iOS and I've got basic entity collision detection working, but there's just something not right about it and I can't quite figure out how to ...
-1
votes
3answers
3k views

Collision between sprites in game programming?

I've since just started coding for an android game using eclipse. I've read Beginning Android Game Programming and various other e-books. Recently, I've encountered a problem with collision between ...
1
vote
2answers
200 views

Managing and rendering bullets

I'm developing something similar to Galaga and I'm not entirely sure how to "manage" the bullets i.e. what data structures/algorithms/approaches to use when rendering them on the screen. Let's forget ...
0
votes
1answer
389 views

Determine speed of sprite

I'm trying to calculate the speed of my sprites in Cocos2d but I'm having some difficulties. I'm not sure which units of time/speed cocos2d uses. My background sprite moves 2 positions to left each ....
5
votes
6answers
480 views

Low dexterity game development

I am tasked with developing a game for kids with low dexterity (as a college project). I am stuck trying to find examples of similar games to generate ideas about game play and overall function. The ...
3
votes
1answer
1k views

360+ degree rotation skips back to 0 degrees when using Math.Atan2(y, x)

I'm new to XNA and this is my first actual project, so forgive my noobness. I'm using jointAngle = System.Math.Atan2(RightStick.Y, RightStick.X); in order to set an angle of a joint (farseer) so ...
2
votes
1answer
4k views

Libgdx collision detection and response

I am trying to create a simple platformer game with libgdx. I implemented a collision detection for the player's bounding box with the map's tiles using the Rectangle.overlaps method. In response I ...
1
vote
1answer
251 views

How to correctly handle multiple movement key presses resulting in double the speed?

I am trying to implement acceleration and drag into my top-down 2D game. The player can move using the WASD keys. Acceleration works fine, but the way I handle the directional velocity causes the ...
2
votes
2answers
575 views

How do I make a character follow behind another?

I'm creating a game in C++ using OpenGL. I want to add a character into my game who, after meeting the main player, follows the player around. The follower should position themselves directly behind ...
1
vote
1answer
358 views

Mixing interpolation with extrapolation in multiplayer game

I am creating a multiplayer drag racing game and have difficulties mixing extrapolation and interpolation. To save network bandwidth i am getting information from the opponent only on his button press,...
0
votes
3answers
211 views

How necessary are shader coders? [closed]

I know that gameplay mechanics programmers, either directly working with source or with scripting are needed, however there are so many shaders written already that I would imagine you could find ...
-1
votes
2answers
357 views

What happens when a character attacked in fighting game?

I went through many websites explaining fighting game systems, frames, hitboxes, but i couldn' find the answer so i ask here. Basically fighting game hitbox system works like this : 1.Player A ...
12
votes
6answers
540 views

How do I fairly distribute resources among factories when resources are near exhausted?

The main resource in my game is mass, stored as a floating point number that changes over time. Resource nodes increase mass and factories drain it. For example, if I have a resource node yielding 5 ...
1
vote
1answer
77 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 ...
1
vote
1answer
85 views

Clay Jam continuous path/tap

I saw this game Clay Jam, that the user can create a path in the sand. The path is a continuous one, and it can varies from a single point to curves. How one can develop smooth and continuous paths?
24
votes
6answers
2k views

How can I introduce time pressure on the player's decisions?

I am designing a hacking game, in which the player usually can take his time thinking about how to overcome the obstacles that he/she currently faces. However, I decided that besides coming up with ...
29
votes
2answers
5k 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 ...
1
vote
1answer
249 views

Is the “Match-3” mechanic unpatented?

Can I use a match-3 mechanic in my commercial game without being sued by some company holding the patent? I will add some extra features to the mechanic.
-1
votes
2answers
103 views

Elemental damage/resistance rates that exceed 100% [closed]

In games there may be the idea of resistance/weakness to certain types of attacks. For example, some games have triangles where A beats B, B beats C, and C beats A. Others may implement this in the ...
3
votes
0answers
151 views

Why do unidentified items seem to solely exist in roguelikes? [closed]

Playing a variety of games I noticed that some concepts are "trapped" in the realm of roguelikes. One of the most intriguing game-play elements in roguelikes is the unidentified item. The unidentified ...
5
votes
3answers
472 views

Representing realistic population

What's the best way to represent a realistic population number (e.g USA:317,569,000) in game? For example, Civilization your city has 1 Citizen. Obviously, a city can't just have one person in a city ...
10
votes
5answers
3k views

Why do modern games not feature extra lives? [closed]

In the late 80s and early 90s, most games had an extra life mechanic. The player started with limited lives (often three) and dying depleted one of them. If they still had some remaining, they would ...
7
votes
3answers
474 views

How can I distribute powerups “fairly”? [closed]

I'm implementing a Bomberman-esque game in which players try to eliminate each other on a square tile-based arena. I'm currently implementing powerups that give the player who collected them a bonus (...
8
votes
5answers
695 views

Why would one have “waves” in each stage of a tower defense game?

For example, in Plants vs Zombies, the zombies come in waves. If I recall, there's always at least two waves. The first and easier wave and then when you get 90% through the stage there's a "final ...
36
votes
9answers
3k 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 ...
1
vote
0answers
156 views

LibGDX polygon caching

I am developing an Android game using LibGDX and I have big world map made of polygons. I use PolygonSprite and PolygonSpriteBatch, when I render map, I get 30-35fps and it feels laggy. I wonder if ...
0
votes
1answer
139 views

Game states vs calling new activities

I am trying to decide what the best method is to call "level complete-screen" and "game over-screen" in my real-time android 2d game. Currently I am using game-states and only updating my game when ...
-1
votes
1answer
39 views

Centering three rectangles of different size

If I have 3 different sprites, that each belongs to the same sprite but with different animations type. Each has a different width, height, in the sprite sheet. How do I adjust the 3 using math, to ...
0
votes
2answers
1k views

How can I make different levels in a game?

Let's say I was working on a platform game. Each level has an exit. When the player reaches the exit, the game switches to the next level. What would be the best way represent and switch to the next ...
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. ...
10
votes
2answers
857 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
votes
1answer
322 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 ...
7
votes
2answers
595 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, ...
2
votes
1answer
179 views

How do I generate paylines and pay dots for a slot game?

I'm working on a HTML5 slot game and am completely stuck on the pay lines and the dots that produce the lines from 1 end to the other. What's the logic behind generating a random number of dots (9-30)...
1
vote
2answers
421 views

How can I tell the player that a key or other item can be discarded?

We're working on a survival horror classical Resident evil (1, 2, 3, 0, REmake) type of game - link. I'm using Unity3D with C#. There's something that's kinda puzzling me - more a game design ...
4
votes
2answers
469 views

What is the name of this power or value-oriented gameplay mechanic?

I would like to identify the name of a certain gameplay mechanism. It is fairly commonly seen but probably best illustrated with card games: A game played with a pack of cards usually has card values ...
-1
votes
2answers
345 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 ...
0
votes
1answer
134 views

What would be a suitable way to model projectiles in an action game?

I'm designing a 2d fighting game in which characters can shoot out some projectiles like arrows, ninja knives, Hadouken (like the one in Street Fighter), etc... My current character design is ...
5
votes
1answer
309 views

How to manage sleep/awake state of physics body

I have a loop, which updates all the physics, inside the loop I'm updating the position of the objects, first thing is the gravity, which pulls all the objects to the bottom. Now my question is, how ...
10
votes
5answers
2k views

Balancing game difficulty against player progression

It seems that the current climate of games seems to cater to an obvious progression of player power, whether that means getting a bigger, more explosive gun in Halo, leveling up in an RPG, or ...
1
vote
1answer
1k views

3d transformation of game world keeping gameplay 2d - COCOS2D 2.0

Using: COCOS2D + iOS. I want to rotate the game world, may be loading another .tmx file for another dimensions when user want to switch dimension. the effect what I am looking for is something like ...
8
votes
2answers
1k views

How do I choose the scaling factor of a 3D game world?

I am making a 3D tank game prototype with some physics simulation, am using C++. One of the decisions I need to make is the scale of the game world in relation to reality. For example, I could ...
3
votes
3answers
534 views

2D game with 3D collision?

How do they do this bounce? Looks awfully complicated in 2D.
5
votes
2answers
1k views

Character progression through leveling, skills or items?

I'm working on a design for an RPG game, and I'm having some doubts about the skill and level system. I'm going for a more casual, explorative gaming experience and so thought about lowering the game ...
1
vote
1answer
871 views

I'm not sure why my shape is not moving

So I am trying to teach my self how to my develop games with java by cloning older games. At the moment I am cloning Pong, and I can not figure out why my paddle is not moving. The move method should ...
3
votes
1answer
446 views

Logic for selecting random rewards [closed]

I am making a RPG game and I am seeking a bit of information on how to grant players random rewards, such as game items, weapons, gold, etc... after defeating a monster, or a NPC of some kind. The ...
1
vote
1answer
518 views

How to handle a player's level and its consequent privileges?

I'm building a game similar to Mafia Wars where a player can do tasks for his gang and gain experience and thus advancing his level. The game is built using PHP and a Mysql database. In the game I ...
0
votes
1answer
94 views

Dynamically editing a movieclip at runtime

I am trying to make a flash game(actionScript-3 if it matters) to test what I learned so far. And, in the game, I want to make the character(a robot?) customizable. The first solution I found was to ...
2
votes
2answers
2k views

Should I code game logic separately from game engine scripts

I'm developing a game in Unity3d, economic strategy. I wonder if I should code logic inside unity scripts, or write it as an external module/library? By game logic I mean game model, which describe ...
2
votes
1answer
230 views

Setting a displacement or offset between Snake segements

I have a problem in maths or I do not know. I have drawn few circles that simulates the body of a snake, the head of the snake moves and others should follow. but the is no offset or displacement ...