A genre of action game whose focus is on platform-based movement. It is equally present in both the 2D and 3D game worlds.

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1answer
585 views

How would I implement a level for a vertical shooter game

I've been working in my free time on a vertical shooter similar to Xenon 2 Megablast. It's a tribute of sorts to the game that destroyed a considerable part of my childhood. I've got the basic stuff ...
-2
votes
1answer
876 views

Why does my sprite shake while moving?

Player movement causes its sprite to shake a bit. I don't what is causing it or how to fix it. I recorded a video of the problem. In the recording, it looks like the world is shuddering, but only ...
3
votes
1answer
288 views

2D collision resolution: works on each axis individually, but not with both combined

My collision detection method is solid and detects box to box collision every time. Then comes the resolve part which I'm struggling with quite a bit. It works perfectly when I'm manipulating the ...
1
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1answer
919 views

adding vertical scrolling to 2D platformer in libgdx

I am trying to make a two sided platform game in Libgdx. Where I am scrolling through the TiledMap. I was easily implementing the horizontal scrolling using.. camera.position.x = ...
13
votes
4answers
1k views

How do I elegantly teach players how to play?

I've been thinking about how puzzle platformers teach players how to play. I like Super Meat Boy, particularly the way in which it teaches you without noticing you are being taught. It kept me ...
1
vote
1answer
112 views

2D Platform character getting “unaligned” with the map

I'm trying to make a 2D Platform game and so far I can have my character moving around in a tiled map and collisions are working too. So far so good. The problem I'm having is that the character can ...
0
votes
1answer
2k views

How can I implement infinite scrolling by scrolling the background's texture, not the quad? [duplicate]

I'm writing a 2D platformer game on Java with LWJGL. I'm doing this just for the sake of learning and not the result itself, so when I decided to implement scrolling I did it two ways I could invent ...
2
votes
3answers
219 views

Determining which edge a collision occurred on in a platformer

First of all, this will be Open Source, and you will be mentioned for the help. We've been programming a Super Mario Remake for the iPhone with Cocos2d for school. It looks pretty great, and we ...
0
votes
1answer
239 views

Collision with Two Angled Platforms

I've encountered a problem in my attempt to implement Collision Handling for a game I'm creating, involving a collision with two angled platforms. I'm using GJK-EPA for detecting/handling collisions ...
2
votes
2answers
88 views

What is the best way to close dialogs in a platform game controlled by keyboard only

I'm developing a flash puzzle platform game in my free time and I got stuck on deciding how to implement a feature. The game will be controlled by keyboard only, no mouse available. My game will have ...
1
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3answers
263 views

Gravity independent of game updates per second

Edit Just for clarification, my sprite's 'movement' isn't the problem. If I set my Time variable to 4 seconds, then it will cross the screen in exactly 4 seconds regardless of logic updates rate per ...
-1
votes
1answer
535 views

How was traditional 2D collision detection/resolution being done? [closed]

Just out of pure curiosity, I'm wondering how classic 2D games of the 80s/90s (The Legend of Zelda, Super Mario, Warcraft, ...) approached collision detection/resolution. For some reason I can't ...
3
votes
1answer
181 views

'perfect' platformer base Xna

When a player touches a ground peice in a game, he seems to sink through the ground then slowly rise back up, and when he has risen back up, he is very jittery. if (touchingTheGround()) { ...
1
vote
3answers
238 views

Creating an update “Tick” on tiles for simulating growth of plants

In my 2D tile based platformer I have added plants to be able to farm such as the simplest, grass, to other things like corn. Now each of these speacial tiles must be updated to show how much it has ...
2
votes
1answer
410 views

How to do 2D Raycasting on a slope

I have a 2d platformer game where my slope can be set at any angle, so I've setup a middle raycast that points to the ground onto the player to handle the collision. This works perfectly fine on a ...
-5
votes
1answer
174 views

camera2d class will not work [closed]

using System; using System.IO; using Microsoft.Xna.Framework; using Microsoft.Xna.Framework.Content; using Microsoft.Xna.Framework.Graphics; using Microsoft.Xna.Framework.Input; using ...
0
votes
1answer
256 views

Create Random Platformer-Gameworld

Evening. I created a xna-game like the iOS Platformer game "Banana Kong". The level-layers are currently saved as XML files. Example: <level> <layer1> <tile type="0" ...
2
votes
2answers
2k views

Implementing tile-based movement on 2D platformer

I'm trying to make a cinematic platformer, in the veins of the first two Oddworld games, Flashback, Prince of Persia, Blackthorne and so on. This article describes very well how this kind of movement ...
1
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1answer
1k views

UML Class Diagrams for 2D platformer Games? [closed]

I have to develop a small arcade game in C++ for a college assignment using a 2D Game Engine my teacher coded. What would be the best way to make a UML class diagram for it? It's very basic stuff but ...
1
vote
0answers
96 views

Developing a simple platformer [closed]

I'm in uni and for coursework we're developing a simple platform game in C# using XNA. I've been looking forwards to starting this all year. Does anyone have any advice on the best books to pick up ...
0
votes
5answers
553 views

Should my platformer have collectibles? [closed]

By collectibles, I mean objects that you collect mainly for the sake of collecting them, not to power up. Think coins in Super Mario or bandages in Super Meat Boy. I've seen a few platformers that do ...
-1
votes
1answer
263 views

Pixel perfect collisions for platforms

i'm trying to do a pixel perfect collision but i don't know how to handle collisions when there is a jump . Here i have one image of a sample map: But maybe I've done a bad supposing all pixel like ...
0
votes
2answers
339 views

Making The Player Stop Bouncing And Stop Sinking In The Ground In A Platformer XNA

Heres a problem i've been having. I have a platformer, and whenever my player hits the ground he keeps bounding. Here's the falling code iceBoy.moveY++; iceBoy.position.Y += moveY; Now heres the ...
1
vote
4answers
2k views

Tile-based maps in AS3

I want to make a tile-based platformer in AS3. I want my game to read an external maps file (in xml or json or somethimg similar) to draw a tile-based map. I've seen loads of tutorials for this in ...
3
votes
2answers
1k views

Non-physics character movement in a Box2d Environment

I am in the process of creating a physics platformer. However, I want the player movement to feel very old-school(as in: non-physics like), which means that the character: Should always move equally ...
2
votes
1answer
2k views

Stopping on a slope in Box2d

I am creating a simple platformer using Box2d. I've implemented a variant of the technique described here. To make the player character move more 'platformer-like' I want him to stop on (shallow) ...
1
vote
1answer
746 views

How do I make camera follow the player within some bounds?

I am creating a simple ambient/explorer platformer. Because I want the player to only be able to see a new area once they have reached it, I decided to split up the world in rooms. To not make things ...
1
vote
1answer
193 views

How to handle sprite speed when objects move using Box2d?

I have a basic platformer using Box2d that works great. However, I now want to stop using my default square, and implement some running and jumping animations. How can I ensure that: When running, ...
2
votes
1answer
661 views

How to make a character in a Box2D world jump faster?

I have a question about using Box2D to simulate a physics-platformer. I manage to make the character move to the right and left, and jumping as well. However, jumping seems extremely slow when ...
4
votes
2answers
5k views

Starting Java 2D Platformer using LWJGL [closed]

Getting started on a 2d platforming project in java. I've decided on using LWJGL and OpenGL, but I don't quite know where to start. What is typically the first thing one would work on with a ...
1
vote
1answer
56 views

Flixel level ceases to show on screen

I was following along with the EZPlatformer flixel tutorial(with some of my own modifications), and suddenly find that my level is not appearing on screen. I am unable to detect any changes I could ...
4
votes
2answers
175 views

Why is my collision resolution failing on the corners?

I'm tearing my hair out trying to work out how to handle my collision resolution at the corners of the rectangles that I'm colliding with. The code that I'm working with is: class Player(object): ...
6
votes
2answers
876 views

“Super meatboy”-ish replay

I'm making a platformer built from mini-levels - and I want to create a sort of a replay of all the player tries that the player did for the level. My question is - what is the best way to record the ...
10
votes
3answers
789 views

Impulsioned jumping

There's one thing that has been puzzling me, and that is how to implement a 'faux-impulsed' jump in a platformer. If you don't know what I'm talking about, then think of the jumps of Mario, Kirby, and ...
1
vote
2answers
2k views

Box2D Platform body not moving player body along with it

I am creating a game using Box2D (Javascript implementation) - and I added the ability to have a static platform, that is moved along an axis as a function of a sine. My problem is when the player ...
0
votes
1answer
196 views

Storing large array of tiles, but allowing easy access to data

I've been thinking about this for a while. I have a 2D tile bases platformer in XNA with a large array of tile data, I've been running into memory problems with large maps. (I will add chunks soon!) ...
1
vote
2answers
533 views

Need material for character anatomy in a 2D game. Spartan Like, See Picture

I'm creating my art for an 2d based IOS game. I know some basic anatomy as you can see by the picture but I have no idea how I will make draw the pics for animation of the character walking, attacking ...
2
votes
3answers
917 views

Issues with shooting in a HTML5 platformer game

I'm coding a 2D sidescroller using only JavaScript and HTML5 canvas, and in my game I have two problems with shooting: 1) Player shoots continous stream of bullets. I want that player can shoot only ...
12
votes
3answers
4k views

2D game collision response: SAT & minimum displacement along a given axis?

I'm trying to implement a collision system in a 2D game I'm making. The separating axis theorem (as described by metanet's collision tutorial) seems like an efficient and robust way of handling ...
4
votes
2answers
455 views

In a Tower defense game, how to do buffs/debuffs

The question is at the very bottom. If you understand Buffs/Debuffs in tower defense games then you should skip the bulk of this question and go to the bottom (seperated with the long line) I plan on ...
1
vote
1answer
232 views

Game Physics: Implementing Normal Reaction from ground correctly

I am implementing a simple side scrolling platform game. I am using the following strategy while coding the physics: Gravity constantly acts on the character. When the character is touching the ...
0
votes
1answer
761 views

Platform game collisions with Block

I am trying to create a platform game and doing wrong collision detection with the blocks. Here's my code // Variables GTimer jump = new GTimer(1000); boolean onground = true; // The update method ...
2
votes
1answer
792 views

What's the best way to handle slopes for a platfomer game using Box2D

I would like to know if there is any known solution for handling the player's movement on slopes using Box2D engine. I tried to do it using a circle as the player. Everything was fine until I tried ...
2
votes
1answer
951 views

How to use proximity sensor in android with unity3d?

I want to create a android game with unity3d using proximity sensor an I don't know how to access that sensor with java script
2
votes
1answer
1k views

Trouble with AABB collision response and physics

I have been racking my brain trying to figure out a problem I am having with physics and basic AABB collision response. I am fairly close as the physics are mostly right. Gravity feels good and ...
26
votes
6answers
7k views

A way to store potentially infinite 2D map data?

I have a 2D platformer that currently can handle chunks with 100 by 100 tiles, with the chunk coordinates are stored as longs, so this is the only limit of maps (maxlong*maxlong). All entity positions ...
0
votes
1answer
825 views

Artifacts when using SamplerState.LinearClamp in SpriteBatch

I'm using XNA 4.0 and VS2010 Express for Windows Phone and Windows Phone SDK 7.1. This is a platform game and I have a map made up of 16x16 textures that is drawn dynamically, tile by tile. When ...
4
votes
2answers
472 views

Detecting a ledge in Box2D [duplicate]

Possible Duplicate: Detect Open Space in Farseer How do I detect ledges? I'm making a 2D platformer with Box2D. The player needs to be able to grab onto a ledge and pull him/herself up. ...
2
votes
2answers
479 views

One-way platform collision

I hate asking questions that are specific to my own code like this, but I've run into a pesky roadblock and could use some help getting around it. I'm coding floating platforms into my game that will ...
3
votes
1answer
1k views

How do I implement smooth movement in a Box2D platform game?

I have implemented a character in JBox2D which moves with the help of a wheel rotating at the bottom of it. The movement is the best result I've had 'till now but it's a little glitchy when the ...