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- <html>
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- <title>Blitz3D Docs</title>
- <link rel=stylesheet href=../css/commands.css type=text/css>
- </head>
- <body>
- <h1>Int( value )</h1>
- <h1>Parameters</h1>
- <table>
- <tr>
- <td>
- value = a number, or a string which represents a number
- </td>
- </tr>
- </table>
- <h1>Description</h1>
- <table>
- <tr>
- <td>
- Converts the value to the nearest integer.
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-
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- This is the same as Blitz's automatic type conversion.
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- So the two commands...
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-
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- n = value
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- n = Int( value )
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-
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- ... do exactly the same thing when n is an integer variable.
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-
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- If Int is applied to a string it converts as much as possible:
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-
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- Int( "10" ) ........ result is 10
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- Int( "3.7" ) ....... result is 3, stops at "." which can't be part of an integer
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- Int( "junk3" ) .... result is 0, stops at "j"
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-
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- Int converts floating point numbers by rounding to the nearest integer.
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- NOTE: This is not the traditional meaning of Int in Basic.
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-
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- What about numbers exactly halfway between integers?
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- The rounding is to the nearest even integer:
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-
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- Int( 2.5 ) ... produces 2
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- Int( 3.5 ) ... produces 4
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-
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- See also Floor and Ceil for other types of rounding.
- </td>
- </tr>
- </table>
- <h1><a href=../2d_examples/Int.bb>Example</a></h1>
- <table>
- <tr>
- <td>
- ; Ceil / Floor / Int example, three kinds of rounding.
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-
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- ; Move mouse. Escape quits.
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-
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- Graphics 640, 480
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-
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- Const KEY_ESC = 1
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-
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- SetBuffer BackBuffer()
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- Origin 320, 240
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-
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- MoveMouse 320, 240 : HidePointer
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-
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- While Not KeyDown( KEY_ESC )
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-
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- Cls
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-
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- my = MouseY() - 240
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- Color 100, 100, 0
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- Line -320, my, 319, my
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-
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- DrawNumberLine
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-
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- y# = Float( -my ) / 32
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-
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- Text 100, 50, " y = " + y
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- Text 100, 70, " Ceil( y ) = " + Ceil( y )
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- Text 100, 90, " Floor( y ) = " + Floor( y )
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- Text 100, 110, " Int( y ) = " + Int( y )
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-
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- Flip
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-
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- Wend
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- End
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-
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- Function DrawNumberLine( ) ; vertical line with numeric labels
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-
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- Color 255, 255, 255
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- Line 0, -240, 0, 239
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-
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- For n = -7 To 7
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- yn = -32 * n
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- Line -2, yn, 2, yn
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- Text -30, yn - 6, RSet( n, 2 )
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- Next
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-
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- End Function
- </td>
- </tr>
- </table>
- <br>
- <a target=_top href=../index.htm>Index</a><br>
- <br>
- Click <a href=http://www.blitzbasic.co.nz/b3ddocs/command.php?name=Int&ref=comments target=_blank>here</a> to view the latest version of this page online</body>
- </html>
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