iz2rpn commented 2 weeks ago

I am testing a project on Windows 11 that uses SGDK to compile a controller pad for the Sega Genesis. The ROM runs, but the keyboard inputs are not being recognized. The only way to detect a pad button press is to perform a hard reset and press a button, which gets recognized only once. Here is the code I am using:

include

// Function declarations static void handleInput(); static void debugInput(u16 value);

// Global variable for the frame counter static u32 frameCounter = 0;

int main() { // Initialize SGDK VDP_drawText("Initializing...", 6, 2); JOY_init(); VDP_drawText("SGDK Initialized", 6, 4);

while (1)
{
    // Increment the counter
    frameCounter++;

    // Display the counter
    char str[20];
    sprintf(str, "Frame: %lu", frameCounter);
    VDP_drawText(str, 2, 24);

    // Read controls, called once per frame
    handleInput();

    VDP_waitVSync();
}

return (0);

}

static void handleInput() { // Variable to store the pad input u16 value = JOY_readJoypad(JOY_1);

// Debug: show the input value
debugInput(value);

// Only if the pad state has changed
if (value != 0)
{
    // Clear the text area before drawing new text
    VDP_clearTextArea(0, 7, 40, 28);

    // If left is pressed...
    if (value & BUTTON_LEFT)
        VDP_drawText("LEFT", 8, 10);

    // If right is pressed...
    if (value & BUTTON_RIGHT)
        VDP_drawText("RIGHT", 20, 10);

    // If up is pressed...
    if (value & BUTTON_UP)
        VDP_drawText("UP", 16, 8);

    // If down is pressed...
    if (value & BUTTON_DOWN)
        VDP_drawText("DOWN", 16, 12);

    // If A is pressed...
    if (value & BUTTON_A)
        VDP_drawText("BUTTON A", 6, 18);

    // If B is pressed...
    if (value & BUTTON_B)
        VDP_drawText("BUTTON B", 14, 18);

    // If C is pressed...
    if (value & BUTTON_C)
        VDP_drawText("BUTTON C", 22, 18);

    // If X is pressed...
    if (value & BUTTON_X)
        VDP_drawText("BUTTON X", 6, 20);

    // If Y is pressed...
    if (value & BUTTON_Y)
        VDP_drawText("BUTTON Y", 14, 20);

    // If Z is pressed...
    if (value & BUTTON_Z)
        VDP_drawText("BUTTON Z", 22, 20);

    // If START is pressed...
    if (value & BUTTON_START)
        VDP_drawText("START", 10, 16);

    // If MODE is pressed...
    if (value & BUTTON_MODE)
        VDP_drawText("MODE", 20, 16);
}

}

// Function to show the input value for debugging static void debugInput(u16 value) { char str[20]; sprintf(str, "Input: %04X", value); VDP_drawText(str, 2, 26); }

Stephane-D commented 2 weeks ago

You need to call SYS_doVBlankProcess() instead of VDP_waitVSync(). I guess you used an outdated tutorial. Better to start out from available samples (sample folder) to avoid that kind of issues ;-)

iz2rpn commented 2 weeks ago

I'm sorry, I hadn't seen the wiki, I tried it and it works great, it was my emotion, my goal of creating a cartridge is getting closer and closer. thanks for what you do and sorry again

Stephane-D / SGDK

Input Handling Issue with SGDK on Windows 11 #338

include