Command Reference
Map Commands
Get_Point
Graphic_Info
Graphic_Set
Load_Map
Load_Pcx
Load_Png
Map_Block_Copy
Map_Clear
Map_Clone
Map_Exists
Map_Name
Map_Put
Map_Put_Pixel
Map_Set_Name
New_Map
Save_Map
Save_Png
Set_Center
Set_Point
Unload_Map
| Map_Get_Pixel Last Modified: May 23, 2005 20:05PM |
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| Description
INT MAP_GET_PIXEL ( INT LIBRARY, INT GRAPH, INT X, INT Y ) It reads the value of a pixel of a graph PARAMETERS: INT library: Number of FPG library INT graph: Number of graph inside of library INT x: Horizontal coordinate INT y: Vertical coordinate DESCRIPTION: This function returns the colour of a determined pixel inside a graph. The coordinates increase towards down and right, and the point (0, 0) represents the top left corner of the graph. In the case of graphs of 256 colours (8 bits), the value returned by this function is a colour of 0 to 255. In opposite case the value returned is a codification of the components of the colour that depends of the video card and graph mode. It can be used Get_Rgb to obtain the approximated values of the components of the colour. NOTES: Although Get_Rgb returns value of 0 to 255 for each component of colour, it is important to understand that the precision of a mode of 16 bits is not sufficient to get all possibilities. Because the high value (255) can not be showed without 8 bits. It is not recommended the use of Map_Get_Pixel for collision maps, with graphs of 16 bits. For that the use of arrays are recommended. |
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| User Contributed Notes Map_Get_Pixel |
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