A platform game (or platformer) is a video game characterized by requiring the player to jump to and from suspended platforms or over obstacles.
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7answers
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2D Platformer AABB collision problems
I have a problem with AABB collision resolution.
I resolve AABB intersection by resolving the X axis first, then the Y axis.
This is done to prevent this bug: http://i.stack.imgur.com/NLg4j.png
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22
votes
6answers
4k 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 ...
16
votes
1answer
542 views
Recreating retro/NES style physics with intentional imprecision
Background:
I'm having a problem getting the jump curve correct for a retro platformer remake project of mine. The original game is for the NES, and the player's velocity is stored in two separate ...
8
votes
3answers
910 views
What is involved in creating a real-time multiplayer platformer game?
I'm creating a platformer game that has a "co-operative" feature which I'd like to work over networks / the internet.
Now I've read up on network game programming including articles like What every ...
7
votes
8answers
2k views
How do I prevent my platformer's character from clipping on wall tiles?
Currently, I have a platformer with tiles for terrain (graphics borrowed from Cave Story). The game is written from scratch using XNA, so I'm not using an existing engine or physics engine.
The tile ...
7
votes
1answer
3k views
Microsoft XNA Platformer Example, is the Collsion Detection implemented accurately?
The example provided by Microsoft seems as if the collision detection (from what I can see) will have a small error. When the user collides with an Unpassable tile, the depth of the intersection is ...
7
votes
3answers
277 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 ...
6
votes
2answers
566 views
How could you create climbing movement in a 2D platformer?
Basically what I want to do is have a playable character that is able to "walk" on an organic surface at any angle, including sideways and upside-down. By "organic" I mean I want my levels to have ...
6
votes
2answers
2k views
Hero/Character sprite size in comparison to tile size?
So I'm making this simple platformer where the Hero is 16x16 in size, but also, the tile size is 16x16. Which sounds fine right? But my game window/world is 800x416, which makes the Hero is really ...
5
votes
5answers
2k views
45° Slopes in a Tile based 2D platformer
I want to have simple 45° slopes in my tile based platformer, however I just cant seem to get the algorithm down. Please take a look at the code and video, maybe I'm missing the obvious?
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5
votes
4answers
980 views
The Decline of 3D Platformers
What contributed to the decline of sales of 3D platformers over the past decade? (Other than Microsoft's acquisition of Rareware.) Would it be a mistake for a developer other than Nintendo (or indie ...
5
votes
2answers
321 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 ...
4
votes
2answers
207 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.
...
4
votes
2answers
138 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):
...
4
votes
1answer
232 views
How to cull liquids
I use culling on my Tiles in my 2D Platformer (XNA), so only ones needed are drawn on screen. Thats easy to do.
However, My Liquid tiles (Water, lava, etc) require an Update Method aswell as the ...
4
votes
1answer
947 views
Slopes in 2D Platformer
I'm dealing with Slopes in a 2D platformer game I'm developing in XNA Game Studio. I was really tired of trying without success, until I found this post: 45° Slopes in a Tile based 2D platformer, ...
4
votes
1answer
1k views
Collision with tile corners/seams in 2D platformer
There seems to be a lot of somewhat related questions answered already, but none I read answered my exact problem.
I have a 2D platformer whose world is made entirely out of tiles that are in a ...
4
votes
5answers
672 views
Should my game handle collisions in the Player object?
I'm making a 2D platform game. Right now I'm just working on making a very generic Player class. I'm wondering if it would be more efficient/better practice to have an ActionListener within the Player ...
3
votes
1answer
802 views
The Physics behind 2D Platformer Games?
Is there any good book or tutorial that explains the physics behind creating a 2D Platformer game? Such as tile rendering, tile map reading, collision detection, camera movement etc.?
3
votes
3answers
397 views
Tile based platformer, using larger tiles?
So for my tile based platformer, It has a grid of tiles Occupying 1x1 block for each one.
However, What if I want larger tiles? Maybe doors, tables, etc. They wouldnt fit in a 1x1 tile, so what I ...
3
votes
2answers
684 views
Platformer Enemy AI
I'm currently developing a platformer shooter. The game is multiplayer and while my net code could use some real work I have put that off for the time, so currently I'm trying to implement the AI.
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3
votes
2answers
3k views
Starting Java 2D Platformer using LWJGL
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 ...
3
votes
1answer
123 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())
{
...
3
votes
1answer
798 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 ...
3
votes
3answers
338 views
3d platformer with 2d point of view
I made my first 2d platformer game using java + swing.
Now I want to achieve the same gameplay adding 1 dimension. I think this will require opengl knowledge.
I know the basics but i don't ...
2
votes
1answer
442 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) ...
2
votes
1answer
640 views
Platformer Starter Kit - Collision Issues
I'm having trouble with my game that is based off the XNA Platformer starter kit.
My game uses smaller tiles (16x16) then the original (32x40) which I'm thinking may be having an effect on collision ...
2
votes
1answer
325 views
Should I go with SpriteBatch or just 3D with Z component always zero?
I'm designing a platformer and beginning to code the viewing engine of the game. Now, I have to make a key decision: Should I just use SpriteBatch to draw all the 2D stuff, as there is no 3D, or ...
2
votes
3answers
726 views
One-way platforms in UDK
I'm looking to make a multi-player platforming game using UDK.
I'm currently doing feasibility research, to make sure I will reasonably be able to do all of the technical things I want to do. The ...
2
votes
3answers
87 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 ...
2
votes
2answers
52 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 ...
2
votes
1answer
122 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 ...
2
votes
1answer
206 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 ...
2
votes
2answers
295 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 ...
2
votes
2answers
1k views
2D side scroller - How to implement X/Y movement?
I'm currently writing a small 2D, side-scroller-ish kind of game.
I have a simple camera that follows the player around and the physics are ready.
I'm using 32x32 tiles that build out the world, ...
2
votes
2answers
233 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 ...
2
votes
1answer
478 views
Handling hitboxes
So I have an issue that I'm laughing at myself about, because it really seems like it should be something that I should be able to figure out pretty quickly.
I am designing a 2D action platformer; I ...
2
votes
1answer
618 views
Platformer collision detection problems
I'm having a few problems with collision detection in my game (written in C# with SDL.Net). Detecting the floor and roof is fine, as does detecting sides of tiles when not jumping/falling. My problem ...
2
votes
1answer
247 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
405 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 ...
2
votes
2answers
154 views
How to do reflective collisions with particles hitting background tiles?
In my 2d pixel old-school platformer, I'm looking for methods for bouncing particles off of background tiles. Particles aren't affected by gravity and collisions are "reflective". By that I mean a ...
2
votes
2answers
488 views
Actionscript 3.0 - Enemies do not move right in my platformer game
I am making a side-scrolling platformer game in Flash (Actionscript 3.0). I have made lots of progress lately, but I have come across a new problem.
I will give some background first. My game level's ...
2
votes
1answer
446 views
How to load chunks of 2d map segments when player reaches a certain point?
In my 2d platformer (made with Java and Slick2d), random maps are made by combining different segments together and displaying them one after the other. My problem is that I can't load too many ...
1
vote
2answers
196 views
Platformer gravity where gravity is greater than tile size
I am making a simple grid-tile-based platformer with basic physics.
I have 16px tiles, and after playing with gravity it seems that to get a nice quick Mario-like jump feel, the player ends up moving ...
1
vote
3answers
977 views
How do I structure a 2D platform level?
I'm doing a 2D platformer but I don't know how they are usually built.
The approach I'm looking at is making it tilebased, with ground tiles on bottom row, then platforms on some places in "mid-air" ...
1
vote
2answers
1k 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 ...
1
vote
4answers
865 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 ...
1
vote
2answers
642 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
vote
1answer
122 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, ...
1
vote
1answer
716 views
How to make a platformer character go DOWN a 315 degree slope?
Alright, so I got this code I'm trying to write, but the player won't go down the slope, it goes down and up perfectly on the 45 degree slope, but the 315 degree one is a mess. it goes "up" the ...
