Gui box size calculations 0-1

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Hello. I have a gui box im using as a health bar. A gui box's size is only 0.0 to 1.0, but of course the characters health is going to be some higher integer. How do you formulate the health to be represented for the health bar? I have no idea on how to calculate health/totalHealth, ie: 231/450 to fit inside 0.0 - 1.0

bardisplay is a float, so if it equals .5, the health bar is half full

 GUI.Box ( Rect (screenPosition.x   , Screen.height - screenPosition.y - size.y , size.x * barDisplay, size.y),"");

Answer 1

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Answer by Eric5h5 · Jul 02, 2013 at 08:39 PM

Use InverseLerp, which returns 0.0 to 1.0.

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superventure · Jul 02, 2013 at 10:03 PM 0

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Thank you! Can I ask you one more question? The total width, size.x * barDisplay is not one single bar, but has the ends of a new bar on each side when full. How do I stop that?

Eric5h5 · Jul 02, 2013 at 10:31 PM 0

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Try changing the border values etc. for the box style, or maybe use GUI.DrawTexture ins$$anonymous$$d.

superventure · Jul 03, 2013 at 01:58 AM 0

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after testing, I found out that the texture can only be so small before flipping over, which causes the ends to reverse. So when the health is equals zero, the box can't accomodate. Testing out some more, I tried out gui.groups, which worked because it doesn't scale the box, it crops it. I just would like to ask one thing of you- How do you reverse this so that is loads from right to left?

GUI.BeginGroup ( Rect (screenPosition.x , Screen.height - screenPosition.y - size.y , size.x * barDisplay , size.y),""); GUI.Box (Rect (0,0, size.x, size.y),"");
GUI.EndGroup ();

superventure · Jul 03, 2013 at 02:44 AM 0

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Figured it out. I just had to switch up the inverse lerp. Thank you for all of help. I appreciate it.

Answer 2

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Answer by ebogguess · Jul 02, 2013 at 08:45 PM

You need to store the maxHealth for your character, as well as their current health. (float)currentHealth/(float)maxHealth will give you a value between 0.0 and 1.0 (assuming that you never let currentHealth go below zero or above maxHealth)

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Answer 3

Answer by Noztradamuz · Jul 02, 2013 at 09:08 PM

Use something like this:

 GUI.Box ( Rect (screenPosition.x   , Screen.height - screenPosition.y - size.y , actualLifeAmount/maxLifeAmount, size.y),"");

of course you need to have those two variables declared and filled, you can update the actualLifeAmount in the update, or every time the character recieves damage, to avoid unnecesary loads.

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Gui box size calculations 0-1

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