Adjustments for 1.8.

src/main/resources/assets/opencomputers/blockstates/waypoint.json

@@ -0,0 +1,8 @@
+{
+    "variants": {
+        "facing=north": { "model": "opencomputers:waypoint" },
+        "facing=south": { "model": "opencomputers:waypoint", "y": 180 },
+        "facing=west":  { "model": "opencomputers:waypoint", "y": 270 },
+        "facing=east":  { "model": "opencomputers:waypoint", "y": 90 }
+    }
+}

src/main/resources/assets/opencomputers/models/block/waypoint.json

@@ -0,0 +1,9 @@
+{
+    "parent": "block/orientable",
+    "textures": {
+        "bottom": "opencomputers:blocks/generic_top",
+        "top": "opencomputers:blocks/waypoint_top",
+        "side": "opencomputers:blocks/waypoint_side",
+        "front": "opencomputers:blocks/waypoint_front"
+    }
+}

src/main/resources/assets/opencomputers/models/item/hoverUpgrade1.json

@@ -0,0 +1,6 @@
+{
+    "parent": "opencomputers:item/flat",
+    "textures": {
+        "layer0": "opencomputers:items/hoverUpgrade1"
+    }
+}

src/main/resources/assets/opencomputers/models/item/hoverUpgrade2.json

@@ -0,0 +1,6 @@
+{
+    "parent": "opencomputers:item/flat",
+    "textures": {
+        "layer0": "opencomputers:items/hoverUpgrade2"
+    }
+}

src/main/resources/assets/opencomputers/models/item/waypoint.json

@@ -0,0 +1,10 @@
+{
+    "parent": "opencomputers:block/waypoint",
+    "display": {
+        "thirdperson": {
+            "rotation": [ 10, -45, 170 ],
+            "translation": [ 0, 1.5, -2.75 ],
+            "scale": [ 0.375, 0.375, 0.375 ]
+        }
+    }
+}

src/main/resources/assets/opencomputers/recipes/default.recipes

@@ -249,9 +249,9 @@ hoverUpgrade1 {
           [feather, "oc:materialCircuitBoardPrinted", feather]]
 }
 hoverUpgrade2 {
-  input: [[end_stone, "oc:circuitChip2", end_stone]
+  input: [[{block="minecraft:end_stone"}, "oc:circuitChip2", {block="minecraft:end_stone"}]
           [nuggetGold, ingotIron, nuggetGold]
-          [end_stone, "oc:materialCircuitBoardPrinted", end_stone]]
+          [{block="minecraft:end_stone"}, "oc:materialCircuitBoardPrinted", {block="minecraft:end_stone"}]]
 }
 inventoryUpgrade {
   input: [[plankWood, hopper, plankWood]

src/main/scala/li/cil/oc/server/component/UpgradeNavigation.scala

@@ -64,7 +64,7 @@ class UpgradeNavigation(val host: EnvironmentHost with Rotatable) extends prefab
     val waypoints = Waypoints.findWaypoints(position, range).
       filter(waypoint => waypoint.getDistanceSq(positionVec.xCoord, positionVec.yCoord, positionVec.zCoord) <= rangeSq)
     result(waypoints.map(waypoint => {
-      val delta = position.toVec3.subtract(waypoint.position.offset(waypoint.facing).toVec3)
+      val delta = waypoint.position.offset(waypoint.facing).toVec3.subtract(positionVec)
       Map(
         "position" -> Array(delta.xCoord, delta.yCoord, delta.zCoord),
         "redstone" -> waypoint.maxInput,