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8bitworkshop/presets/vectrex/joystick.c
2020-06-12 23:00:22 -05:00

56 lines
1.5 KiB
C

#pragma vx_copyright "2020"
#pragma vx_title_pos -100, -80
#pragma vx_title_size -8, 80
#pragma vx_title "CONTROLS TEST"
#pragma vx_music vx_music_1
#include "vectrex.h"
#include "bios.h"
// http://www.playvectrex.com/designit/chrissalo/joystick.htm
const char rom_text[] = "JOYSTICKS:";
int main()
{
char j1t[] = { '1', ':', '_', '_', '_', '_', 0x00 };
char btn1[] = { '1', '2', '3', '4', 0x00 };
char j2t[] = { '2', ':', '_', '_', '_', '_', 0x00 };
char btn2[] = { '1', '2', '3', '4', 0x00 };
uint8_t i, j1, j2, btns;
while(1)
{
wait_retrace();
j1 = read_joystick(1);
j2 = read_joystick(2);
btns = read_buttons(); // momentary
btns = *((byte*)0xc80f); // persistent
for(i=0;i<4;i++) {
j1t[2+i] = (j1 & (1<<i)) ? 'X' : '_';
j2t[2+i] = (j2 & (1<<i)) ? 'X' : '_';
}
btn1[0] = (btns & JOY1_BTN1_MASK) ? 'X' : '1';
btn1[1] = (btns & JOY1_BTN2_MASK) ? 'X' : '2';
btn1[2] = (btns & JOY1_BTN3_MASK) ? 'X' : '3';
btn1[3] = (btns & JOY1_BTN4_MASK) ? 'X' : '4';
btn2[0] = (btns & JOY2_BTN1_MASK) ? 'X' : '1';
btn2[1] = (btns & JOY2_BTN2_MASK) ? 'X' : '2';
btn2[2] = (btns & JOY2_BTN3_MASK) ? 'X' : '3';
btn2[3] = (btns & JOY2_BTN4_MASK) ? 'X' : '4';
intensity(0x7f);
print_str_c( 0x10, -0x50, (char*)rom_text);
print_str_c(-0x10, -0x50, j1t);
print_str_c(-0x20, -0x40, btn1);
print_str_c(-0x30, -0x50, j2t);
print_str_c(-0x40, -0x40, btn2);
}
return 0;
}