[feature] added keyboard events

1 files changed, 91 insertions, 0 deletions

diff --git a/examples/keyboard.c b/examples/keyboard.c
new file mode 100644
index 0000000..51a488e
--- /dev/null
+++ b/examples/keyboard.c
@@ -0,0 +1,91 @@
+#include <stdio.h>
+#include <stdbool.h>
+#define FBGL_IMPLEMENTATION
+#include "fbgl.h"
+
+#define RECT_WIDTH 50
+#define RECT_HEIGHT 30
+#define MOVE_STEP 10
+#define BG_COLOR 0x000000 // Black
+#define RECT_COLOR 0xFFFFFF // White
+
+int main(void)
+{
+    // Initialize framebuffer
+    fbgl_t framebuffer;
+    if (fbgl_init(NULL, &framebuffer) != 0) {
+        fprintf(stderr, "Failed to initialize framebuffer\n");
+        return EXIT_FAILURE;
+    }
+
+    // Initialize keyboard
+    if (fbgl_keyboard_init() != 0) {
+        fprintf(stderr, "Failed to initialize keyboard\n");
+        fbgl_destroy(&framebuffer);
+        return EXIT_FAILURE;
+    }
+
+    atexit(fbgl_keyboard_clean); // Cleanup on exit
+    atexit((void (*)(void))fbgl_destroy, &framebuffer);
+
+    // Initial rectangle position
+    fbgl_point_t top_left = {framebuffer.width / 2 - RECT_WIDTH / 2, framebuffer.height / 2 - RECT_HEIGHT / 2};
+    fbgl_point_t bottom_right = {top_left.x + RECT_WIDTH, top_left.y + RECT_HEIGHT};
+
+    // Main loop
+    while (!fbgl_check_esc_key()) {
+        // Update keyboard state
+        fbgl_keyboard_update();
+
+        // Clear screen
+        fbgl_set_bg(&framebuffer, BG_COLOR);
+
+        // Move rectangle based on key input
+        if (fbgl_key_down('w')) {
+            top_left.y -= MOVE_STEP;
+            bottom_right.y -= MOVE_STEP;
+        }
+        if (fbgl_key_down('s')) {
+            top_left.y += MOVE_STEP;
+            bottom_right.y += MOVE_STEP;
+        }
+        if (fbgl_key_down('a')) {
+            top_left.x -= MOVE_STEP;
+            bottom_right.x -= MOVE_STEP;
+        }
+        if (fbgl_key_down('d')) {
+            top_left.x += MOVE_STEP;
+            bottom_right.x += MOVE_STEP;
+        }
+
+        // Ensure rectangle stays within screen bounds
+        if (top_left.x < 0) {
+            top_left.x = 0;
+            bottom_right.x = RECT_WIDTH;
+        }
+        if (top_left.y < 0) {
+            top_left.y = 0;
+            bottom_right.y = RECT_HEIGHT;
+        }
+        if (bottom_right.x > framebuffer.width) {
+            bottom_right.x = framebuffer.width;
+            top_left.x = framebuffer.width - RECT_WIDTH;
+        }
+        if (bottom_right.y > framebuffer.height) {
+            bottom_right.y = framebuffer.height;
+            top_left.y = framebuffer.height - RECT_HEIGHT;
+        }
+
+        // Draw the rectangle
+        fbgl_draw_rectangle_filled(top_left, bottom_right, RECT_COLOR, &framebuffer);
+
+        // Refresh frame (add a delay if needed)
+        usleep(16000); // ~60 FPS
+    }
+
+    // Cleanup
+    fbgl_keyboard_clean();
+    fbgl_destroy(&framebuffer);
+
+    return EXIT_SUCCESS;
+}