mouse_mode.c

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#include <sbgl.h>
#include <stdio.h>
 
/*
 * This example demonstrates the different mouse modes available in SBgl.
 * The system supports three primary modes:
 * - NORMAL: Cursor is visible and behaves normally.
 * - HIDDEN: Cursor is invisible but can still leave the window area.
 * - CAPTURED: Cursor is invisible and locked to the window center,
 *   providing continuous relative motion (ideal for first-person cameras).
 */
 
int main(void) {
    /* Initialize the library and create a window. */
    sbgl_InitResult res = sbgl_Init(800, 600, "SBgl Mouse Mode Test");
    if (res.error != SBGL_SUCCESS)
        return 1;
    sbgl_Context* ctx = res.ctx;
 
    printf("--- Mouse Mode Controls ---\n");
    printf("1: NORMAL (Visible, Free)\n");
    printf("2: HIDDEN (Invisible, Free)\n");
    printf("3: CAPTURED (Invisible, Locked)\n");
    printf("ESC: Exit\n");
 
    /* Main application loop. */
    while (!sbgl_WindowShouldClose(ctx)) {
        /* Clear the background with a dark blue color. */
        sbgl_Clear(ctx, 0.1f, 0.1f, 0.15f, 1.0f);
        sbgl_BeginDrawing(ctx);
 
        /* Retrieve the current input state to check for key presses. */
        const sbgl_InputState* input = sbgl_GetInputState(ctx);
 
        /* Toggle between mouse modes based on user input. */
        if (input->keysPressed[SBGL_KEY_1]) {
            printf("Mode: NORMAL\n");
            sbgl_SetMouseMode(ctx, SBGL_MOUSE_MODE_NORMAL);
        }
        if (input->keysPressed[SBGL_KEY_2]) {
            printf("Mode: HIDDEN\n");
            sbgl_SetMouseMode(ctx, SBGL_MOUSE_MODE_HIDDEN);
        }
        if (input->keysPressed[SBGL_KEY_3]) {
            printf("Mode: CAPTURED\n");
            sbgl_SetMouseMode(ctx, SBGL_MOUSE_MODE_CAPTURED);
        }
 
        /* Exit the application if the Escape key is pressed. */
        if (input->keysDown[SBGL_KEY_ESCAPE])
            break;
 
        /* Mouse movement deltas are tracked regardless of the current mode. */
        if (input->mouseDeltaX != 0 || input->mouseDeltaY != 0) {
            /* Delta information can be printed here for debugging purposes. */
        }
 
        /* Finalize the current frame and present it. */
        sbgl_EndDrawing(ctx);
    }
 
    sbgl_DeviceWaitIdle(ctx);
    /* Clean up resources and shut down the context. */
    sbgl_Shutdown(ctx);
    return 0;
}