player.ship.speed is wrong

Post by **Eric Walch** » Mon Dec 01, 2008 5:15 pm

player.ship.speed has a bug. When not moving is gives 0 but any other speed is wrong and return very strange numbers.
I typed in the console:

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> player.ship.speed
-0.000000000000000000000000000000000000000000026815622292052967
> player.ship.speed
00002.0000004782923786
> player.ship.speed
00000000000000000002.0000004792236576
> player.ship.maxSpeed
312

JensAyton · Post by **JensAyton** » Mon Dec 01, 2008 5:27 pm

That is weird. I’m not sure what would cause those leading zeroes to be there, for a start.

Unfortunately (?), it works for me.

Post by **Eric Walch** » Mon Dec 01, 2008 5:52 pm

It is not always wrong. When I launch from a station and don't change speed it returns the correct value. But as soon as i lower or raise speed and than ask for speed I get the strange results. Even more strange: if I round the value it returns a correct speed:

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> player.ship.speed
156
(increase throttle)
> player.ship.speed
-0.00000000000000000000000000000000000000000000000000000020000004798785067
> Math.round(player.ship.speed)
196

Maybe it is just in the console? But it is always correct direct after launch with an unchanged speed.

JensAyton · Post by **JensAyton** » Mon Dec 01, 2008 6:02 pm

Well, that clearly marks it as a display issue. I really don’t know what’s happening, though.

Post by **Eric Walch** » Sat Dec 13, 2008 5:44 pm

Ahruman wrote:
Well, that clearly marks it as a display issue. I really don’t know what’s happening, though.

It's not only cosmetic. I just got the following error in the log:

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Oolite [script.javaScript.exception.206] ReportJSError (OOJavaScriptEngine.m:136): ***** JavaScript exception: Error: System.legacy_addShipsAt: Invalid arguments ("derelict2_ptt", "wpu", 1, [0,0,-M.415457530940974e+140]) -- expected role, positive count no greater than 64, coordinate scheme and coordinates.

This ship was always added without a problem. Now it does not recognise the z coordinate that was calculated with a random value. I tried it in the console and I got:

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> Math.random()
-;.334326032427297e-223
> Math.random()
-?.568205105111486e-16
> Math.random()*2
6.968427634158886e+223

Strange values.

JensAyton · Post by **JensAyton** » Sat Dec 13, 2008 9:28 pm

Eric Walch wrote:

It's not only cosmetic. I just got the following error in the log:

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Oolite [script.javaScript.exception.206] ReportJSError (OOJavaScriptEngine.m:136): ***** JavaScript exception: Error: System.legacy_addShipsAt: Invalid arguments ("derelict2_ptt", "wpu", 1, [0,0,-M.415457530940974e+140]) -- expected role, positive count no greater than 64, coordinate scheme and coordinates.

That’s because you’ve got the count and coordinate scheme the wrong way around.

Post by **Eric Walch** » Sat Dec 13, 2008 9:42 pm

Ahruman wrote:
That’s because you’ve got the count and coordinate scheme the wrong way around.

You are right, I was just fixated on the M in the z-coordinate. Than it's still a cosmetic bug.