From b12d0494f54d781a0b9f467a4fc3e4e255dd9839 Mon Sep 17 00:00:00 2001
From: Arne Dußin
Date: Thu, 29 Oct 2020 03:13:10 +0100
Subject: Make map draggable

The map can be dragged around, but since the grid is not yet infinitely
big, it feels quite weird to zoom and drag
---
 src/transform.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/transform.rs')

diff --git a/src/transform.rs b/src/transform.rs
index ef94029..a91d7da 100644
--- a/src/transform.rs
+++ b/src/transform.rs
@@ -121,6 +121,11 @@ impl Transform {
         }
     }
 
+    /// Move the canvas by the vector in pixels.
+    pub fn move_by_px(&mut self, by: [f64; 2]) {
+        self.translation_px = math::add(self.translation_px, by);
+    }
+
     pub fn pixels_per_m(&self) -> f64 {
         self.pixels_per_m
     }
-- 
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