[feature] keyboard and raw mode implementation

1 files changed, 119 insertions, 0 deletions

diff --git a/examples/player.c b/examples/player.c
new file mode 100644
index 0000000..6eed8e7
--- /dev/null
+++ b/examples/player.c
@@ -0,0 +1,119 @@
+#define FBGL_IMPLEMENTATION
+#include "fbgl.h"
+
+#include <stdio.h>
+#include <unistd.h>
+
+#define PLAYER_SPEED 1
+
+typedef struct {
+	int x;
+	int y;
+} Player;
+
+int main(int argc, char *argv[])
+{
+	// Check for font file argument
+	if (argc < 2) {
+		fprintf(stderr, "Usage: %s <psf1_font_file>\n", argv[0]);
+		return 1;
+	}
+
+	// Load PSF1 font
+	fbgl_psf1_font_t *font = fbgl_load_psf1_font(argv[1]);
+	if (!font) {
+		fprintf(stderr, "Failed to load PSF1 font from %s\n", argv[1]);
+		return 1;
+	}
+
+	// Initialize framebuffer
+	fbgl_t fb;
+	if (fbgl_init(NULL, &fb) != 0) {
+		fprintf(stderr, "Failed to initialize framebuffer\n");
+		fbgl_destroy_psf1_font(font);
+		return 1;
+	}
+
+	// Initialize keyboard
+	if (fbgl_keyboard_init() != 0) {
+		fprintf(stderr, "Failed to initialize keyboard\n");
+		fbgl_destroy(&fb);
+		fbgl_destroy_psf1_font(font);
+		return 1;
+	}
+
+	// Create a player
+	Player player = { .x = fb.width / 2, .y = fb.height / 2 };
+
+	// Game loop
+	while (1) {
+		// Clear the screen
+		fbgl_set_bg(&fb, 0x000000);
+
+		// Get key input
+		fbgl_key_t key = fbgl_get_key();
+
+		// Handle player movement
+		switch (key) {
+		case FBGL_KEY_UP:
+			player.y = (player.y - PLAYER_SPEED < 0) ?
+					   0 :
+					   player.y - PLAYER_SPEED;
+			break;
+		case FBGL_KEY_DOWN:
+			player.y = (player.y + PLAYER_SPEED >= fb.height) ?
+					   fb.height - 1 :
+					   player.y + PLAYER_SPEED;
+			break;
+		case FBGL_KEY_LEFT:
+			player.x = (player.x - PLAYER_SPEED < 0) ?
+					   0 :
+					   player.x - PLAYER_SPEED;
+			break;
+		case FBGL_KEY_RIGHT:
+			player.x = (player.x + PLAYER_SPEED >= fb.width) ?
+					   fb.width - 1 :
+					   player.x + PLAYER_SPEED;
+			break;
+		case FBGL_KEY_ESCAPE:
+			// Exit the program
+			goto cleanup;
+		default:
+			break;
+		}
+
+		// Draw the player (as a small white rectangle)
+		fbgl_point_t top_left = { .x = player.x - 5,
+					  .y = player.y - 5 };
+		fbgl_point_t bottom_right = { .x = player.x + 5,
+					      .y = player.y + 5 };
+		fbgl_draw_rectangle_filled(top_left, bottom_right,
+					   FBGL_RGB(255, 255, 255), &fb);
+
+		// Display debug info
+		char fps_text[32];
+		char pos_text[32];
+		float fps = fbgl_get_fps();
+
+		snprintf(fps_text, sizeof(fps_text), "FPS: %.2f", fps);
+		snprintf(pos_text, sizeof(pos_text), "POS: %d, %d", player.x,
+			 player.y);
+
+		// Render text using the loaded PSF1 font
+		fbgl_render_psf1_text(&fb, font, fps_text, 10, 10,
+				      FBGL_RGB(0, 255, 0));
+		fbgl_render_psf1_text(&fb, font, pos_text, 10, 30,
+				      FBGL_RGB(255, 0, 0));
+
+		// Small delay to control frame rate
+		usleep(16666); // ~60 FPS
+	}
+
+cleanup:
+	// Cleanup
+
+	fbgl_destroy(&fb);
+	fbgl_destroy_psf1_font(font);
+
+	return 0;
+}