PXfinder

A tool for Playstation 1 to retrieve screen coordinates using a crosshair

This is a simple obj module to move a crosshair and reading its [x,y] coordinates. Useful when you want to place sprites on screen and don't want to perform dozens of builds just to find the right coordinates on screen.

This tool is just a small TIM image with a FntPrint().

It should also work on interlaced screens.

In order to use pxfinder to need to:

• link the provided pxfinder.obj file into your Makefile chain
• modify your source program in order to use pxfinder
• if you want, you can customize the speed of movement of the crosshair and the coordinates box (MOVE_OFFSET in pxfinder.h)

If you want to compile pxfinder yourself, there are two Makefiles: Makefile is for GNU Make, Makefile.mak is for Psymake.

Your source file needs to be modified in two points:

/* init pxfinder */
pxfinder_init();

/* draw the crosshair and the coordinates box (f=1 execute FntFlush immediately */
pxfinder_draw(GsOT ot, int f);

Linking example:

ccpsx -Xm -Xo$80010000 -DPXFINDER pxfinder.obj main.c -omain.cpe

-DPXFINDER in your code enables pxfinder. Example usage is in the main.c file.

Use the DPAD to move the crosshair. L1/L2 and R1/R2 to move the coordinates box.

Bug: since the crosshair and the coordinates box move in float steps, depending on the offset choosen you may not be able to get exactly of the edge of the screen. A better version could implement a dynamic resolution movement.