main.c

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#include <eZ8.h>             // special encore constants, macros and flash routines
#include <sio.h>             // special encore serial i/o routines
#include "reflexball.h"
#include "ansi.h"
#include "LED.h"
#include "time.h"
#include "buttons.h"
#include "gameport.h"
#include "asciidisplay.h"
#include "ascii.h"

unsigned long wheelTimer; // Used to add a small delay between reading the analog wheel

void main() {
    int input; // Input from the keyboard
    unsigned char buttons; // Input from either the hardware buttons or the sterring wheel's button
    char wheel; // Output from readSterringWheel()

    initTimers(); // Initialize the Timer1 used for delay_ms() and mills()
    initLED(); // Initialize LED display
    initButtons(); // Initialize hardware buttons
    initGameport(); // Initialize steering wheel buttons and driving wheel
    init_uart(_UART0,_DEFFREQ,BAUD_115200); // Start the UART at 115200 8N1

    color(2,0); // Green forground, black background

Start:
    clrscr(); // Clear the screen

    LEDsetString("    ReflexBall RALLY!"); // Scroll this text on the display

    initStartMenu(3,1,224,82); // x1, y1, x2, y2
    while(!startMenu()); // Wait for any key to be pressed
    clrscr();
    printMenu();
    while(!updateMenu()); // Wait until difficulty is choosen

    LEDsetString("    "); // Clear display
    initReflexBall(3,15,224,82,1); // x1, y1, x2, y2, style

    for(;;) {
        buttons = getGameportButtons(); // Read steering wheel's button
        
        if (buttons & 0xE) // Gear backward or button press
            startGame();
        else if (millis() - wheelTimer > 20) { // We have to limit the update rate or it will move to fast
            wheelTimer = millis();
            wheel = readSteeringWheel(); // Read sterring wheel
            if (wheel != 0)
                moveStriker(wheel);
        }
        else { // The driving wheel overrules the other controls
            buttons = readButtons(); // Hardware buttons
            if (buttons) {
                if (buttons & 0x2) // Center
                    startGame();
                else if (buttons & 0x4) // Left
                    moveStriker(-1);
                else if (buttons & 0x1) // Right
                    moveStriker(1);
            }
            else if (kbhit()) { // Check if a buttons has been pressed on the keyboard
                input = getch(); // Read the keyboard
                if (input == ' ') // Space
                    startGame();
                else if (input == 68) // Left
                    moveStriker(-2);
                else if (input == 67) // Right
                    moveStriker(2);
            }
        }
        updateGame(); // Update the game - this has to be called frequenctly
        if (restartGame)
            goto Start; // Goto back to the start of the game
    }
}