added project with nerabochie cows

scenes/objects/shake.gdshader

@@ -0,0 +1,16 @@
+shader_type canvas_item;
+
+uniform float shake_intensity = 0.0;
+uniform float shake_speed = 20.0;
+
+void vertex()
+{
+	vec2 shake = vec2(0.0);
+
+	if (VERTEX.y < 0.0)
+	{
+		shake.x = sin(TIME * shake_speed + VERTEX.y) * shake_intensity;
+	}
+
+	VERTEX.xy += shake;
+}