Angular Velocity in Phaser 2.3

[mrBobDobalina]

Running the new Phaser 2.3 and I've been trying all day to make a simple asteroids-type game going off the examples and the problem I'm having is--
 
game.physics.Arcade.velocityFromAngle(sprite.angle, 300, sprite.body.velocity);
 
this line of code seems to be crashing my program.

I copied it directly from phasers examples   http://phaser.io/examples/v2/arcade-physics/angular-velocity

 

Heres a copy of my code as proof I'm not just making mistakes elsewhere

play.html

 

There doesn't seem (to me) to be another way to get the ship accelerating forward based on its current direction

 

I'm running Linux (mint) if that matters at all

 

 

for example:

 

//this code works with something simple like  sprite.body.velocity.y = 200;  but when i enter the above line it freezes the game as soon as I press the up //key is pressed.

//using the other ways to say button isdown returned a black screen

 

 if (game.input.keyboard.isDown(Phaser.Keyboard.UP))
    {
            
    }

[Eraph]

You've got an uppercase 'A' in your 'arcade'.

game.physics.arcade.velocityFromAngle(sprite.angle, 300, sprite.body.velocity);

[mrBobDobalina]

I know i only tried that out of frusteration it doesnt work the normal way either.

and my text editor suggested it so i was like why not hahaha

[Eraph]

Really? That's the only change I made and I got it to work as expected. I'm using Phaser v2.3.0.

[mrBobDobalina]

Dang!

Yeah im running the 2.3 as well.

Well thanks for testing that out with me, I'll try running that same code on another computer when i get a chance and see how that goes.

[mrBobDobalina]

Tried running it on a brand new computer today and the game still freezes whenever I press the up arrow key

Thats too bad I really like phaser and wanted it to work out

[MichaelD]

Does the console provide any information about the error that is occurring?

[mrBobDobalina]

Thanks for saying that! I didn't think about that, suppose I gave up too quickly

 

Yeah I'm getting this error:

 

TypeError: game.physics.startSystem is not a function

  game.physics.startSystem(Phaser.Physics.ARCADE);

 

and when i press the UP button this error pops up

 

TypeError: game.physics.arcade is undefined

 

game.physics.arcade.velocityFromAngle(sprite.angle, 300, sprite.body.velocity);

   

Strange, I'll try re-installing phaser to see if my download was messed up or something

[mrBobDobalina]

Re-installed Phaser and tried again to no avail.

Tried lots of ridiculous things like running it on different computers and OS's too but I cant get the program to run. Thats crazy its working for you

[MichaelD]

you could put a "window.console.log(game, game.physics.arcade)" and see what the console outputs, if there is an undefined somewhere then that is your problem.

[rgk]

Start the physics first (before you add sprites), like in the init function that you can add.
Also like stated above, the only issue I saw was the upper case Arcade instead of arcade.

[mrBobDobalina]

Put the physics in an init function like you suggested and I get a black screen and the game refuses to load.

 

still getting the same errors, I understand this is my problem which I have. Getting day 1 into development and running into these kind of problems is pretty discouraging.

[mrBobDobalina]

Alright so I got frusterated and deleted everything that has anything to do with phaser off my computer and did everything new and now it works.

Did everything the same way, even copy pasting my previous code from above and now it wants to work. I don't understand why but I'll keep going with it...