Tagged Questions
9
votes
1answer
616 views
How to create 2D shadows
I'd like to create lights and shadows in a 2D environment, like in the image below:
I did several searches but got no results. Do you have any hint?
7
votes
4answers
890 views
Is a multiplayer game in JavaScript a good idea?
I wanted to make a multiplayer game that runs in the browser, and a friend of mine suggested that I should choose JavaScript as the main language. I already made a lot (registering, logging in, half ...
7
votes
2answers
808 views
What is the best way to handle simultaneous collisions in a physics engine?
I'm writing a 2d physics engine in javascript so that I can learn more about physics in video games. I have it working correctly for rigid body collisions, except for if any body collides with two or ...
7
votes
1answer
634 views
2d, Top-down map with different levels
So, I'm creating a 2d, top down, sprite based (tiled) game, and right now I'm working on maps (well, a map editor at the moment, but it will be creating my maps, so basically the same thing).
The ...
5
votes
3answers
844 views
Split a 2D scene in layers or have a z coordinate
I am in the process of writing a 2D game engine, and a dilemma emerged. Let me explain the situation...
I have a Scene class, to which various objects can be added (Drawable, ParticleEmitter, ...
4
votes
2answers
856 views
Calculating the angular direction from velocity
I'm trying to calculate the angular direction of a projectile, knowing it's X and Y velocity I can find the magnitude of its movement, but I'm having a hard time wrapping my mind around getting the ...
4
votes
5answers
467 views
Implementing vector based movement in a 2d environment
Good evening.
I apologize if the title is a bit vague, I really could not come up with anything better.
I am currently reading a book called the nature of code and as a side project, I am working on ...
4
votes
1answer
167 views
What is the optimal way for updating different entities in an engine?
EDIT: half of my question seemed to disappear, but thankfully, it was still in the clipboard.
When I say entities, I mean instantiations of various classes in my engine (example class: ...
3
votes
5answers
806 views
2D Collision detection for Pinball Game
So far in previous games I have used simple 2D collision with boxes then checking at pixel level for a collision.
If making a pinball game in nearly a lot of frames the ball will be in contact with a ...
3
votes
2answers
729 views
canvas ball physics animation
I want to animate ball in html canvas like this.
ctx.beginPath();
ctx.arc(75, 75, 10, 0, Math.PI*2, true);
ctx.closePath();
ctx.fill();
start position is left top corner and ball's maximum ...
3
votes
1answer
1k views
Optimizing HTML5 canvas transformed drawing in Javascript
I am trying to optimize my HTML5 game engine and have noticed that currently a majority of the time taken in the game loop can be taken when drawing transformed tiles. I think this is because each ...
2
votes
2answers
406 views
Collision Detection doesnt work because some things move more than 1px at a time
I'm writing a 2d scrolling game in javascript using canvas and since I'm limited to setInterval running at minimum once every ms, I need to have some objects moving at greater than 1 pixel a second. I ...
2
votes
3answers
339 views
How do I represent walls in a 2D tile based map?
I'm trying to create a simple 3D(2D) Dungeon Crawler but I am going to be using simple flat images to show the user they are in a "3D" world. Now what I mean is something like Sword and Serpents on ...
2
votes
2answers
748 views
Canvas Rotation collision detection on a sprite
I am using this code to detect collisions between two rectangular sprites.
intersect: function(other) {
return this.x < other.x + other.width && other.x < this.x + this.width ...
2
votes
2answers
350 views
Making an interactive 2D map
So recently I have been working on a Legend of Zelda: A Link to the Past clone, and I am wondering how I could handle certain map interactions (like cutting grass, lifting rocks, etc).
The way I am ...
