From b57cde7398bf7900120555870534f36539b06437 Mon Sep 17 00:00:00 2001
From: EmeraldBlock <69981203+EmeraldBlock@users.noreply.github.com>
Date: Wed, 7 Oct 2020 16:19:43 -0500
Subject: [PATCH] Allow for cycling buildings backward with SHIFT

Uses the rotateInverseModifier key
---
 src/js/game/hud/parts/base_toolbar.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/js/game/hud/parts/base_toolbar.js b/src/js/game/hud/parts/base_toolbar.js
index a0e2a49f..4a02e25b 100644
--- a/src/js/game/hud/parts/base_toolbar.js
+++ b/src/js/game/hud/parts/base_toolbar.js
@@ -160,9 +160,13 @@ export class HUDBaseToolbar extends BaseHUDPart {
         }
 
         let newBuildingFound = false;
+        let direction = !this.root.keyMapper.getBinding(KEYMAPPINGS.placement.rotateInverseModifier).pressed * 2 + 1;
         let newIndex = this.lastSelectedIndex;
-        for (let i = 0; i < this.primaryBuildings.length; ++i, ++newIndex) {
+        for (let i = 0; i < this.primaryBuildings.length; ++i, newIndex += direction) {
             newIndex %= this.primaryBuildings.length;
+            if (newIndex < 0) {
+                newIndex += this.primaryBuildings.length;
+            }
             const metaBuilding = gMetaBuildingRegistry.findByClass(this.primaryBuildings[newIndex]);
             const handle = this.buildingHandles[metaBuilding.id];
             if (!handle.selected && handle.unlocked) {