Add icon tool

1 files changed, 10 insertions, 0 deletions

diff --git a/src/grid.rs b/src/grid.rs
index d5fac6d..ecc59c3 100644
--- a/src/grid.rs
+++ b/src/grid.rs
@@ -1,3 +1,4 @@
+use crate::math::{self, Vec2};
 use crate::transform::Transform;
 use raylib::drawing::RaylibDraw;
 use raylib::ffi::Color;
@@ -9,6 +10,15 @@ pub const LINE_COLOUR: Color = Color {
     a: 75,
 };
 
+/// Snap a vector to the grid with the factor being the sub-grid accuracy. For instance, 0.5 will
+/// snap to half a grid cell, while 2.0 would snap to every second grid cell
+pub fn snap_to_grid(mut vec: Vec2<f32>, snap_fraction: f32) -> Vec2<f32> {
+    vec.x = math::round(vec.x, snap_fraction);
+    vec.y = math::round(vec.y, snap_fraction);
+
+    vec
+}
+
 /// Draw an infinite grid that can be moved around on the screen and zoomed in and out of.
 pub fn draw_grid<D>(rld: &mut D, screen_width: i32, screen_height: i32, transform: &Transform)
 where