# Tagged Questions

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48 views

### Stop vibration (bouncing efect)

I have a game with some ball and I want to make it bounce. I already have movement, gravity, collisions implemented, I only need to make it bounce. Thing is, using this code: player.getVelocity().y ...
77 views

### 2D animated sprite jumping and gravity physics

I'm currently writing a Megaman clone for my school project. So far all I did was making the character run and stay put when needed. Know I want to be able to make him jump using the 'X' button. I ...
82 views

### Vertical Collision Detection, Falling Through Ground

After much work trying to learn collision system theory and apply it, I've got my collision system working for the most part. The player can collide horizontally with no issue, sliding against walls, ...
38 views

### Jumping distance due to X velocity

I would just like to know if there is a way to work out the distance of a jump depending on how fast the player is going. For example if the player has a velocity X of 10 and he presses the jump ...
59 views

### Odd Jumping Behavior?

While testing my player's jumpinig algorithm, I've come across two odd problems. 1) My player's hard-coded jump height is always much greater (roughly 1.5 times) than the in-game result, making me ...
66 views

### 2D Platform Jump Animation

I have implemented the jump and want to add some animation to it. I have a tile for "preparing for jumping", one for jumping and one for landing. I use a time based system for jump and I already ...
276 views

### Wall jumping collision detection anomaly

I'm creating a game where the player ascends a tower by wall jumping his way to the top. When the player has collided with the right wall they can only jump left and vice versa. Here is my current ...
83 views

### UDK Change Jump Speed/Duration

I currently have a game in UDK and hooked up animations for it using a AnimTree. Now the issue is, after the character has jumped up, he falls down extremely quickly. This seems to be causing the fall ...
954 views

### Unity working on wall jump

I have a 2D platformer game and in it I have recently implemented wall jumping, and the way I have it works great. However when one jumps with the character and moves towards the wall one can hold ...
172 views

### Making a sprite jump at a particular angle android

I am making a game in android Java, and I am kind of new in game programming. Please help me out. I have a sprite that is moving horizontally across the screen. I want him to jump when the use ...
192 views

### How can I incorporate the path of a jump into my A* implementation?

I need to calculate the path of a jump via A* for a simple platformer game. Calculating the direction is simple, but translating the jump physics into pre-calcuted voxel paths is a bit difficult. ...
159 views

### How to obtain “gravity” and “initial impulse” given “desired time to reach max height” and “desired max height”?

I'm developing a 2d fighting game, using time steps based on frames ie, each call to Update() of the game represents a frame so, no variable time at all. My jump physics code doesn't need to consider ...
251 views

### How can I make my sprite jump up and move forward at the same time?

I'm trying to make a sprite's movements work. For some reason, he can only jump and then move, or move and then jump, but never at the same time. I'm using InputProcessor and a TiledMap system. ...
610 views

### Goalkeeper Jumping Algorithm?

This may be a "best way to" question, so may be susceptible to opinion-based answers (which is ok for me). But I would also like if there are any tutorials , research papers , etc. I'm trying to make ...
108 views

### Adding Leniency to Jumping Mechanic

I have written some jumping code for my player in a platformer game. At the moment it has some basic logic which says that the player can jump if he is on the ground. The pseudocode looks something ...
176 views

### Updating the jump in game

I am making a Java game and I want my game to run the same on any FPS so I'm using time delta between each update. This is the update method of the Player: public void update(long timeDelta) { ...
503 views

### How can I implement a simple “jump” action with three.js and/or Physijs?

Assume I have a simple Physijs object like this car. How can I adapt something like this to "jump" (hydraulics ftw!) when pressing spacebar for instance? I'm currently thinking applyCentralImpulse ...
2k views

### Smooth jumping in 2D platformers [duplicate]

I have a very simple 2D game, similar to old-school Mario or Metroid. I'm having a lot of trouble figuring out the proper way to handle player jumping. I've tried several different methods. The first ...
206 views

### Python + Pygame - Collision problems

I'm currently developing a game in Python + Pygame and i came up with a problem with the player and the platforms. The game is a 'runner' where the player it's fixed (The 'x' position isn't variable, ...
107 views

### Java game: jumping glitch on multiple collisions

I need help with checking for intersections in a game I'm creating. When a character collides with a single obstacle on the screen everything works as intended, but when multiple obstacles are added ...
131 views

### Detect when two keys are pressed at the same time [closed]

I'm doing a game with XNA and I need an animation when two keys are pressed.. I tried this but it doesn't function. if (Keyboard.GetState().IsKeyDown(Keys.D) && ...
3k views

### Implementing a basic jump in libgdx

I have seen the document for libgdx and managed to move the character and also to implement bounds but the document does not show how to implement jumping. I have downloaded the superjumper demo code ...
656 views

### Mario like jumping and landing in box2d, help

I've been trying to get Mario type jumping/landing in a Box2d game and it's been giving me some trouble. Results: Player loses velocity on landing Desired Results: When player lands it will continue ...
180 views

### limiting jump forces to achieve a maximum jump height [duplicate]

A player and the world are modeled using a physics engine. Jumping is modeled by applying a vertical upward force to the player's physics body when the jump button is pressed. The upward force is ...
638 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 ...
196 views

### How can I improve my Animation

The first approaches in animation for my game relied mostly on sine and cosine functions with the time as parameter. Here is an example of a very basic jump I implemented. if(jumping) { height = ...
794 views

### Jump handling and gravity

I'm new to game development and am looking for some help on improving my jump handling for a simple side scrolling game I've made. I would like to make the jump last longer if the key is held down ...
233 views

### Jumping Logic Issues [duplicate]

Possible Duplicate: How to make a character jump? I have been working on a 2D platformer and am trying to implement jumping. At the moment I have it simply teleporting upward and then ...
124 views

I'm trying to make a character jump on a landing pad who stays above him. Here is the formula I've used (everything is pretty much self-explainable, maybe except character_MaxForce that is the total ...
1k views

### Smooth vector based jump

I started working on Wolfire's mathematics tutorials. I got the jumping working well using a step by step system, where you press a button and the cube moves to the next point on the jumping curve. ...