Fix next icon still being drawn when tool is inactive

The icon that would be placed next, but is not on the map was always
drawn once the icon-tool was activated once. This is no longer the case.
Also, the tool now saves the last icon that was selected and keeps the
rotation of it between placements, which I deemed more intuitive.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/editor.rs b/src/editor.rs
index c756990..f8ee4bc 100644
--- a/src/editor.rs
+++ b/src/editor.rs
@@ -37,7 +37,17 @@ impl Editor {
         // Handle keybindings for tool change
         for (i, tool) in self.tools.iter().enumerate() {
             if tool.activation_key().is_pressed(rl) {
+                // Don't do anything if the tool does not change.
+                if i == self.active {
+                    break;
+                }
+
+                /* Deactivate the current tool and activate the tool, of which the keybinding has
+                 * been pressed.
+                 */
+                self.tools[self.active].deactivate();
                 self.active = i;
+                self.tools[self.active].activate();
                 break;
             }
         }