Merge pull request #8 from dario-loi/bugfixes

1 files changed, 61 insertions, 0 deletions

diff --git a/examples/rectangle.c b/examples/rectangle.c
new file mode 100644
index 0000000..1b3a6f7
--- /dev/null
+++ b/examples/rectangle.c
@@ -0,0 +1,61 @@
+#define FBGL_IMPLEMENTATION
+#include "fbgl.h"
+
+int main(int argc, char *argv[])
+{
+	fbgl_t buffer;
+	if (fbgl_init("/dev/fb0", &buffer) == -1) {
+		fprintf(stdout, "Error: could not open framebuffer device\n");
+		return -1;
+	}
+
+	fbgl_set_bg(&buffer, 0xFFFFFF); // Set the background to white
+
+	fbgl_point_t start = { 100, 100 };
+	fbgl_point_t end = { 200, 200 };
+	fbgl_draw_rectangle_outline(start, end, 0xFF0000,
+				    &buffer); // Draw red rectangle outline
+
+	fbgl_point_t start2 = { 600, 400 };
+	fbgl_point_t end2 = { 800, 800 };
+	uint32_t colors[] = { 0xFFC00, 0x00FF00, 0x0000FF,
+			      0xFF00FF }; // Yellow, Green, Blue, Magenta
+	size_t color_index = 0;
+
+	// Initial position of the marquee rectangle
+	int dx = 15; // Horizontal speed
+	int dy = 8; // Vertical speed
+
+	while (1) {
+		// Clear the framebuffer (set background)
+		fbgl_set_bg(&buffer, 0xFFFFFF);
+
+		// Draw the moving filled rectangle
+		fbgl_draw_rectangle_filled(start2, end2, colors[color_index],
+					   &buffer);
+
+		// Move the filled rectangle by updating its position
+		start2.x += dx;
+		end2.x += dx;
+		start2.y += dy;
+		end2.y += dy;
+
+		// Reverse direction if the rectangle hits the screen boundary
+		if (start2.x <= 0 || end2.x >= buffer.width) {
+			dx = -dx;
+			color_index++;
+		}
+		if (start2.y <= 0 || end2.y >= buffer.height) {
+			dy = -dy;
+			color_index++;
+		}
+		if (color_index >= 4) {
+			color_index = 0;
+		}
+
+		usleep(50000); // Delay to make the animation visible (adjust as needed)
+	}
+
+	fbgl_destroy(&buffer);
+	return 0;
+}