void loop(){ //one frame
static uint8_t escape_state = 0;
uint16_t receive_state = 1;
//primitive somewhat messy state machine of the uart interface
do{ //Always empty the receive buffer since there are _delay_xxs in the following code and thus this might not run all that often.
receive_state = uart_getc();
char c = receive_state&0xFF;
receive_state &= 0xFF00;
//escape code format:
// \\ - backslash
// \n - newline
// \[x] - x
//eats [n] commands: 's' (0x73) led value sets led number [led] to [value]
// 'b' (0x62) buffer buffer buffer buffer sets the whole frame buffer
// 'a' (0x61) meter value sets analog meter number [meter] to [value]
// 'r' (0x72) read the frame buffer
// 'd' (0x64) display digit digit digit digit sets the 7-segment display (CAUTION: "display" currently is ignored)
//this device will utter a "'c' (0x63) num state" when switch [num] changes state to [state]
//commands are terminated by \n
if(!receive_state){
if(!escape_state){
if(c == '\\'){
receive_state |= 0x02;
escape_state = 1;
}else if(c == '\n'){
receive_state |= 0x02;
state = 0;
}
}else{
receive_state = 0;
escape_state = 0;
switch(c){
case '\\':
break;
case 'n':
c = '\n';
break;
}
}
}
if(!receive_state){
switch(state){
case 0: //Do not assume anything about the variables used
//command char
switch(c){
#ifdef HAS_LED_SUPPORT
case 's':
state = 2;
break;
case 'b':
nbuf = 0;
state = 4;
break;
#endif//HAS_LED_SUPPORT
#ifdef HAS_PWM_SUPPORT
case 'a':
state = 5;
nbuf = 0;
break;
#endif//HAS_PWM_SUPPORT
#ifdef HAS_NOISE_MAKER_SUPPORT
case 'x':
//DDRF |= 0x01;
//PORTF |= 0x01;
break;
case 'X':
//DDRF &= 0xFE;
//PORTF &= 0xFE;
break;
#endif//HAS_NOISE_MAKER_SUPPORT
#ifdef HAS_LED_SUPPORT
case 'r':
uart_putc('r');
for(uint8_t i=0; i<sizeof(frameBuffer); i++){
uart_puthex(frameBuffer[i]);
}
uart_putc('\n');
break;
#endif//HAS_LED_SUPPORT
#ifdef HAS_7SEG_SUPPORT
case 'd':
nbuf = 0;
bpos = 0;
state = 7;
#endif//HAS_7SEG_SUPPORT
}
break;
#ifdef HAS_LED_SUPPORT
case 2:
nbuf=c;
state = 3;
break;
case 3:
setLED(nbuf, c);
state = 0;
break;
case 4:
secondFrameBuffer[(uint8_t) nbuf] = c;
nbuf++;
if(nbuf == 7){
swapBuffers();
state = 0;
}
break;
#endif//HAS_LED_SUPPORT
#ifdef HAS_PWM_SUPPORT
case 5:
if(c > PWM_COUNT)
c = 0;
nbuf = c;
if(nbuf >= PWM_COUNT)
nbuf = 0;
state = 6;
break;
case 6:
pwm_val[(uint8_t) nbuf] = c;
uart_puts_p(PSTR("ACK\n"));
state = 0;
break;
#endif//HAS_PWM_SUPPORT
#ifdef HAS_7SEG_SUPPORT
case 7:
nbuf = c;
state = 8;
break;
case 8:
l7seg_buf[(uint8_t)bpos] = c;
bpos++;
if(bpos == 4){
state = 0;
}
break;
#endif//HAS_7SEG_SUPPORT
}
}
}while(!receive_state);
led_loop();
r0ketbeam_loop();
l7seg_loop();
input_loop();
pwm_loop();
config_loop();
_delay_ms(1);
}
int main (int argc, char *argv[])
{
if (sdl_init () != 0)
return 1;
if (textures_init ())
return 1;
if (audio_init ())
{
fprintf (stderr, "Error loading SFX: %s\n", SDL_GetError());
return 1;
}
if (music_init ())
{
fprintf (stderr, "Error loading SFX: %s\n", SDL_GetError());
return 1;
}
if (config_load ())
{
fprintf (stderr, "Error loading config\n");
}
hiscore_init ();
//gamestate = GAME_DEMO;
running = 1;
while (running)
{
sdl_read_input ();
if (!paused)
{
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0);
if (gamestate != GAME_OVER)
SDL_RenderClear (renderer);
switch (gamestate)
{
case GAME_DEMO:
draw_test ();
break;
case GAME_RUNNING:
game_loop ();
break;
case GAME_AMODE:
default:
amode_loop ();
break;
case GAME_OVER:
gameover_loop ();
break;
case GAME_HSENTRY:
hsentry_loop ();
break;
case GAME_CONFIG:
case GAME_CONFIG_INPUT:
config_loop ();
break;
case GAME_SELECT_RECORD:
playback_loop ();
break;
}
}
SDL_RenderPresent (renderer);
}
hiscore_save ();
sdl_close ();
return 0;
}
