Map info set
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Definition
INT map_info_set ( <INT fileID> , <INT graphID> , <INT info_type> , <INT value> )
Changes the x or y coordinate of the center pixel (controlpoint 0). This function is also known as Graphic_set().
Parameters
| INT fileID | - The file that holds the graph. |
| INT graphID | - The graph to get information from. |
| INT info_type | - What type of information you want to change, see note. |
| INT value | - The new x or y coordinate of the center pixel. |
Returns
INT : Returns the information you want.
If the specified graph was invalid it returns 0.
If the specified infotype was not recognized it returns 1.
Example
IMPORT "mod_say";
IMPORT "mod_debug";
IMPORT "mod_key";
IMPORT "mod_map";
IMPORT "mod_video";
IMPORT "mod_wm";
IMPORT "mod_draw";
IMPORT "mod_screen";
GLOBAL
int map_id;
int status;
PROCESS main();
BEGIN
set_mode(320,200,32);
map_id=load_map("3COCHE.MAP");
// print the original data.
say("width of the map: "+graphic_info(0,map_id,G_WIDTH));
say("height of the map: "+graphic_info(0,map_id,G_HEIGHT));
say("g_x_center of the map: "+graphic_info(0,map_id,G_X_CENTER));
say("g_y_center of the map: "+graphic_info(0,map_id,G_Y_CENTER));
// change the x and y coordinates of the center pixel and display it.
status=map_info_set(0,map_id,G_X_CENTER,20);
status=map_info_set(0,map_id,G_Y_CENTER,10);
say("center pixel changed:");
say("g_x_center of the map: "+graphic_info(0,map_id,G_X_CENTER));
say("g_y_center of the map: "+graphic_info(0,map_id,G_Y_CENTER));
say("status: "+status);
graph=map_id;
x=100;
y=100;
LOOP
IF (key(_esc))
BREAK;
END
FRAME;
END
END
Notes
As infotype, only two options are valid:
| G_X_CENTER | - Change the x coordinate of the center pixel. |
| G_Y_CENTER | - Change the y coordinate of the center pixel. |