problem with load asset with GD.Vertex2ii

[marekspychalski]

Hi there,

I'm having trouble with displaying image converted to binary file with LOAD_ASSETS(). I'm trying to display it with GD.Vertex2ii( 610, 20, 1), where 610=x, 20=y, 1 = handle, but I know that x can not be bigger than 511 pixels. So i tried to use GD.Vertex2f( 610 * 16 , 20 * 16 , 1), but it didn't work because GD.Vertex2f does not receive third parameter. Do you have any suggestion how to display asset with x position >511 ?

Thanks in advance

[tftlcdcyg]

VertexTranslateX allows to overcome the limit of the 511 px

For example:

GD.SaveContext();
GD.VertexTranslateX(610*16);
GD.Vertex2ii(0, 240, 4);   //asset 4
GD.RestoreContext();


VertexTranslateX or VertexTranslateY in action!



MCU: Nucleo F767ZI
TFT: NHD 7" (800x480 px, FT813)
Library: gameduino 2/3 modified for STM32 and teensy 3.6, with SdFat library core

FT81xmania team.

[jamesbowman]

Yes, you can do:

GD.BitmapHandle(h);
GD.Cell(c);
GD.Vertex2f(x * 16 , y * 16 , 1);
which is just the same as:

GD.Vertex2ii(x, y, h, c);

except that it allows coordinates outside 0-511.

I sometimes make a small function to optimize this:


void vx(int x, int y, int h = 0, int c = 0)
{
 if (((x | y) & ~511) != 0) {
   GD.BitmapHandle(h);
   GD.Cell(c);
   GD.Vertex2f(x * 16 , y * 16 , 1);
 } else {
   GD.Vertex2ii(x, y, h, c);
 }
}
 So you can just use vx() all the time instead of Vertex2ii()/Vertex2f().

[marekspychalski]

good job my friends it WORKS!! thank you!