R0J0hound's Forum Posts

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
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  • 18 Apr, 2012
  • Quote

  Use a variable and add the angle difference of the sprite to it every tick.

  The "AngleDiff()" expression is not satisfactory since it doesn't give the direction of the angle difference (CW or CCW). So I used this method:

  http://blog.lexique-du-net.com/index.php?post/Calculate-the-real-difference-between-two-angles-keeping-the-sign

  capx:

  http://dl.dropbox.com/u/5426011/examples10/total_rotation.capx

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
  • 1

  • 18 Apr, 2012
  • Quote

  seridras

  try this:

  "$" &int(Balance) &"." &right("00" &(Balance*100)%100,2)

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
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  • 17 Apr, 2012
  • Quote

  It was trial and error. I initially thought the height needed to be doubled or 0.5 but part of the image was cut off, so I tweaked it till I found a value that was close enough to look right.

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
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  • 17 Apr, 2012
  • Quote

  0.6 is just a scaling factor. It's used in 4 places in events 3 and 4. If you change 0.6 to 1 the image won't cover the entire canvas.

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
  • 1

  • 17 Apr, 2012
  • Quote

  Use the "FormatDecimal()" system expression, it's output won't become 2.68e-002.

  ex.

  FormatDecimal(0.0268, 4) -> "0.0268"

  7Soul

  That has to do with floating point precision.

  Short Answer:

  0.1 can't be exactly represented in binary, so a close approximation is used. When adding the number multiple times the inaccuracy grows. It is an issue with all computers. The number will not always be exact but it will be accurate to a certain number of digits, so the error is usually insignificant.

  Long Answer:

  http://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
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  • 16 Apr, 2012
  • Quote

  Fixed it some more:

  http://dl.dropbox.com/u/5426011/examples10/sphereTex3b.cap

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
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  • 16 Apr, 2012
  • Quote

  random(320-10)+10

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
  • 1

  • 16 Apr, 2012
  • Quote

  If you have to separate objects and give each a variable "health" then add both objects to a family then you can't access "family.health".

  Instead add both objects to a family and add a family variable "health" and then the objects will inherit "health" variables, then you can access "family.health".

  Does this help? If not a capx would help immensely.

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
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  • 16 Apr, 2012
  • Quote

  With the fist way: "|slt|slt|slt|slt|slt"

  You can retrieve a certain slot but can't replace a certain slot because the slots are not unique.

  The second method is working for me, here is a capx:

  http://dl.dropbox.com/u/5426011/examples10/TextList.capx

  <img src="http://dl.dropbox.com/u/5426011/examples10/TextLIst.png" border="0">

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
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  • 16 Apr, 2012
  • Quote

  Here is Animmaniac's method tweaked to work with any sized texture. Also fixed an issue with my first example where a seam would show up from the Image manipulator being 0 based and the canvas being 1 based.

  http://dl.dropbox.com/u/5426011/examples10/sphereTex3.cap

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
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  • 12 Apr, 2012
  • Quote

  For sine interpolation:

  Lerp(0,IM.GetImageHeight, (1+Sin(LoopIndex("j")*180/IM.GetImageHeight))/2)

  But that still won't eliminate the distortion at the poles.

  Paul Brouke's method eliminates the pole distortion but causes seams because parts of the image are discarded.

  <img src="http://local.wasp.uwa.edu.au/~pbourke/texture_colour/texturemap/sketch.gif" border="0"> The area in that shape is the only part of the image that is preserved.

  The libnoise website it has some sphere textures that are distorted in a way similar to pbrouke's method but I think that it was generated special for spheres.

  http://libnoise.sourceforge.net/examples/textures/index.html

  Also the Photoshop method just blurs the texture near the poles, it would still have the pole distortion.

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
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  • 10 Apr, 2012
  • Quote

  I thought this interesting enough to try out.

  http://dl.dropbox.com/u/5426011/examples10/sphereTex.cap

  The results look pretty bad...

  Either his method is flawed or another method is needed for texture mapping a sphere.

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• • R0J0hound
  • 
  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
  • 1

  • 10 Apr, 2012
  • Quote

  Resources are inside the exe. The Resource plugin extracts them from the exe to a temp file and creates a hashtable associating a name with the filename. Try "Set text to Resource("img1")" to see where the file was extracted to.

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
  • 1

  • 10 Apr, 2012
  • Quote

  I don't see any actions to destroy joints...

  The only way to destroy a joint is to destroy one of the connected objects. If you save the object's position, angle and velocity to global or local variables before you destroy the object, you can recreate the object in the exact state it was before.

  ex:http://dl.dropbox.com/u/5426011/examples10/destroyJoint.capx

• • R0J0hound
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  • • Joined 15 Jun, 2009
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    • 90 topics • 7,289 posts
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  • 9 Apr, 2012
  • Quote

  It's pretty simple. Use the action "extract resource" to assign a name to a resource, you would probably do this at the start of the layout.

  + System: Start of layout
  -> Resource: Extract Resource "brick.png" as "img1"
  -> Resource: Extract Resource "box.png" as "img2"

  Then you can load the resource with any action that loads from a filename.

  -> Sprite: Load frame from Resource ("img1")