Questions tagged [logic]

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68
votes
6answers
17k views

How can I know if my puzzle game is always possible?

I've made a sort of a puzzle game where the goal is to get rid of all of the white tiles. You can try it at the end of the question. Each time, the board is randomly generated with white tiles in ...
25
votes
5answers
10k views

Game logic on the server! Good or bad?

I'm currently planning a simple online multiplayer game. And here is the question. Does it make sense to make the whole game logic on the server and just send the input from the client to the server? ...
21
votes
6answers
12k views

Separating game data/logic from rendering

I'm writing a game using C++ and OpenGL 2.1. I was thinking how could I separate the data/logic from rendering. At the moment I use a base class 'Renderable' that gives a pure virtual method to ...
16
votes
5answers
9k views

Synchronization between game logic thread and rendering thread

How does one separate game logic and rendering? I know there seem to already be questions on here asking exactly that but the answers are not satisfactory to me. From what I understand so far the ...
12
votes
1answer
5k views

Separating physics and game logic from UI code

I'm working on a simple block-based puzzle game. The game play consists pretty much of moving blocks around in the game area, so it's a trivial physics simulation. My implementation, however, is in ...
11
votes
3answers
5k views

Why should I separate objects from rendering?

Disclamer: I know what an entity system pattern is and I'm not using it. I've read a lot about separating object and rendering. About the fact that the game logic should be independent from the ...
11
votes
3answers
5k views

UPS and FPS - What should I limit and why?

I'm currently writing a game using C++ and SDL2 and there's one thing that I'm wondering about - does it make sense to limit my frames per second (FPS) and/or my updates per second (UPS)? I get the ...
11
votes
5answers
2k views

Data Structures for Logic Games / Deduction Rules / Sufficient Set of Clues?

I've been cogitating about developing a logic game similar to Einstein's Puzzle , which would have different sets of clues for every new game replay. What data structures would you use to handle the ...
9
votes
4answers
2k views

How does an Engine like Source process entities?

On the Source engine (and it's antecessor, goldsrc, quake's) the game objects are divided in two types, world and entities. The world is the map geometry and the entities are players, particles, ...
9
votes
1answer
2k views

Separating logic/update from render/drawing code in a single thread using sleep

I've read that the speed of game objects should not be hindered by FPS but instead should be based on time. How can I seperate the update/draw code to maximize performance without limiting the drawing ...
8
votes
5answers
585 views

Choose your own adventure - choices stack

I'm currently building a choose your own adventure game. Now it's easy enough to have one outcome to every choice and create a linear flow, but is there a good algorithm for having all previous ...
7
votes
1answer
273 views

How to execute game logic every 100ms but render as fast as possible?

I have created a simple snake clone and would like to execute game logic every 100ms while rendering as fast as possible. How can I achieve this when the program might run with very different frame ...
6
votes
5answers
1k views

Whats the most efficient method for controlling entities?

I'm creating a tower defense game and I'm having logistical issues trying to figure out how to best have all of the enitites do their apporiate task. I have considered just constantly looping through ...
6
votes
2answers
702 views

Is it possible to have concurrent collision detection where every entity acts at exactly the same time?

There are many algorithms that can be used for collision detection. In many cases we check for an overlap in coordinates of an entity. If we make a triangle a,b and c. We have 2 entities at a and b ...
6
votes
2answers
4k 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 ...
6
votes
1answer
867 views

rotating an object from sourceAngle to destAngle, both 0-359, clockwise or counter clockwise?

I've got a game object i need to rotate. It's current angle is player.rotation, the destination is targetAngle, both in degress, 0 to 359. I've got a function named rotateDirection(float sourceAngle, ...
6
votes
4answers
1k views

Machine Learning in AI for benefit analysis round to round in a rummy like game

For fun I am building the game 5 crowns. Well I've gotten to the point where I am implementing the rules for the computer players. I've found that my decision tree has so many nodes on it that I ...
6
votes
1answer
594 views

Linking nodes algoritm for Visual Design

I'm developing an editor for my game, and now it's time to make a visual scripting system to let designer modify behaviours. This video shows what i have done and the problem to resolve the link ...
5
votes
3answers
2k views

Save Security with MD5 Hash

I'm working on a flash game that saves your progress locally. These saves can easily be hacked. My solution is to add an md5 hash of all the variables saved into the save file itself. When loading the ...
5
votes
3answers
2k views

Question about separating game core engine from game graphics engine

Suppose I have a SquareObject class, which implements IDrawable, an interface which contains the method ...
5
votes
3answers
3k views

Writing Logic behind card games

I'm not a dev noob, but definitely never done anything in game dev. There is a trump based card game we play in town that I plan on coding. I'll be either using python/ajax/pyqt or c++/qt. My ...
5
votes
3answers
738 views

How to test for adjacency?

I need to come up with a better way to test for adjacency in a grid environment. Imagine that the blue is water, the green is land, and the red dot is a character. What I need to do is efficiently ...
5
votes
2answers
271 views

How to “repeat” a sprite in the gameworld in a random fashion?

I have a platform flash game which includes a level with just two backgrounds which are flipped side by side so that a looping background effect is created. In this I have to include Obstacles. ...
5
votes
4answers
8k views

Entity/Component based engine rendering separation from logic

I noticed in Unity3D that each gameObject(entity) have its own renderer component, as far I understand, such component handle rendering logic. I wonder if it is a common practice in entity/component ...
5
votes
1answer
754 views

Creating a Roguelike game in C

I'm trying to create a simple rogue-like game in ncurses in a C program. The idea here is that, I'd parse a file like this: ...
4
votes
1answer
761 views

Keeping everything within one Activity

Overview My game is currently based on a single activity (rather than multiple activities) and I would like to keep it that way. At the moment, it goes straight into the game at level 1. I will ...
4
votes
1answer
1k views

Stuck on development of turn-based-strategy game

I am developing a turn based political/military strategy game similar to the DOS game Conflict. I have my game design document completed, but I'm having trouble actually putting together the logic of ...
4
votes
1answer
1k views

Best way to separate display and game logic (threads)

What is the best way to separate render and game logic threads? I'd like to make logic-heavy game (ai, machine learning, and network) in which world updates 50-60 times per second. I want to ...
4
votes
2answers
266 views

Restricting Maximum Velocity in Space

I'm making a top-down 2D space ship game in which you rotate and thrust. I'd like to impose a maximum velocity for different engine types, meaning that a certain engine can only get you going up to a ...
4
votes
1answer
107 views

Optimizing black and white matrix block drawing

Disclaimer: I am uncertain if this is the best place to post this question, so please advise me of how I can best find the answer if I am doing something wrong. I am asking this question because I am ...
3
votes
4answers
5k views

3-in-a-row or more logic

This is a bit more difficult than it seems and the one other post on here isn't sufficient. You have a row of n items, and each item could be any one of 5 colors. You need to find if there are any ...
3
votes
3answers
688 views

How can I model a “weapon overheating” mechanic?

I want to create a weapon overheating system very similar to the plasma rifle in Halo. You can watch a video of the plasma rifle firing. What I want to do is to create a flexible logic that can be ...
3
votes
2answers
143 views

Collison detection trouble. (c++ SDL2)

I have a small trouble with my collsion detection system, ill show it on images. im checking the detection by using that logic with example when moving to the right: ...
3
votes
1answer
5k views

Pausing and resuming in Unity

I've been writing this code quite late so please bear with me. I'm trying to pause the game and show a menu when I'm inside a collider and then when i press a key it should unpause the game and ...
3
votes
3answers
216 views

Best way to store map?

I am trying to make a simple game that simulates ants inside a colony, in the Java language. They can move around the paths randomly, go outside to eat leaves, etc. The game is meant to be more of an ...
3
votes
3answers
2k views

Opponent car logic in race games

I'm developing a race game in Andengine. I have created a car which player is controlling. But since this is a race game, there should be 3 or 4 car which snatch with the player's car. My question is: ...
3
votes
1answer
84 views

How to decide the direction of movement, when navigating a fixed path in a 2d overworld?

Suppose, I have a 2D overworld like in Super Mario Brothers 3, but without junctions or intermediate nodes. Only a single, contiguous path of level nodes, which should be navigated with the arrow keys....
3
votes
2answers
1k views

How to handle angles in an isometric game?

I am working on my first isometric game, and I am not sure how to go about angles and rotation. Basically, I want the player's forward movement and rotation to coincide with the isometric angles. I ...
3
votes
2answers
466 views

Derive a algorithm to match best position

I have pieces in my game which have stats and cost assigned to them and they can only be placed at a certain location. Lets say I have 50 pieces. e.g. Piece1 = 100 stats, 10 cost, Position A. Piece2 ...
3
votes
2answers
324 views

How to compare different states of my game? (rpg)

I'm working on a rpg, the battle system. I want to compare different scenario with each other. For example, what if I play move A then move B ? or two times move A ? or ...? I'm using a tree-...
3
votes
0answers
78 views

How are Spot It cards generated?

Spot It is a card game 55 cards. Each card has exactly 8 symbols on it (though the total number of different symbols used in the 55 card set is 57). For any two cards in the deck, they share exactly ...
3
votes
0answers
159 views

Is there a logic game engine to be used in OS game? [closed]

Ludocore is a paper where a research on a logic game engine is presented. For game I cooperate on -- Opendungeons -- it would seem fine to have separate abstract layer of code which would deal only ...
2
votes
2answers
189 views

Moving a continue condition into the for loop produced something NOT logically equivalent?

I'm setting up a hex grid. The column/row system I use puts 0, 0 as the top left corner, and increasing columns (x) moves to the right but also vertically upwards. So columns run straight up and down, ...
2
votes
1answer
802 views

Moving sprites based on Delta time - consistent movement across all devices with different resolutions

This is the formula I am currently using to move my sprites across the screen: Examples below only deal with X coordinates to keeps things as short as possible. Initial variable declarations: ...
2
votes
1answer
137 views

How to structure a game that continue even when closed?

I'm developing a Unity based game purely for fun but I'm stuck with a problem. How can I implement a system that keep my game running even when is closed? I don't want to HAVE IT running when it's ...
2
votes
1answer
186 views

whats the difference between the two switches in rpg maker mv?

I dont understand what the difference between the top and bottom set of switches in rpg maker mv, can someone please explain.
2
votes
1answer
114 views

Resolving A counters B, who is countered by C, who could be… in an ATB

There are 4 player character slots and 8 enemy slots. I'm using a combat system that's similar to ATB from FF4; You select a move, there's a waiting period depending upon the move, during which other ...
2
votes
1answer
152 views

3d puzzle game generating levels

I want to create a puzzle game for my first year in college. I will use OpeGL and C++. The point of the game is to create a path between squares that have the same color, without making the paths ...
2
votes
1answer
356 views

Kart Racing Attack AI

I am developing a kart racing game. In it, the players fight with each other while racing. There were several ways I tried to add attack AI to the enemies and the player. When the user clicks on ...
2
votes
2answers
331 views

Finding diagonal objects of an object in 3d space

Using Unity3d, I have a array which is having 8 GameObjects in grid and one object (which is already known) is in center like this where K is already known object. ...