Fix wind generators speed and direction not behaving properly in resp…

…ect to the new world height limits #7912

src/generators/java/mekanism/generators/client/render/RenderWindGenerator.java

@@ -59,8 +59,8 @@ private void renderTranslated(TileEntityWindGenerator tile, float partialTick, P
         MekanismRenderer.rotate(matrix, tile.getDirection(), 0, 180, 90, 270);
         matrix.mulPose(Axis.ZP.rotationDegrees(180));
         double angle = tile.getAngle();
-        if (tile.getActive()) {
-            angle = (tile.getAngle() + ((tile.getBlockPos().getY() + 4F) / TileEntityWindGenerator.SPEED_SCALED) * partialTick) % 360;
+        if (tile.getActive() && partialTick > 0) {
+            angle = (angle + tile.getHeightSpeedRatio() * partialTick) % 360;
         }
         renderer.render(matrix, angle);
         matrix.popPose();

src/generators/java/mekanism/generators/common/tile/TileEntityWindGenerator.java

@@ -27,8 +27,7 @@
 
 public class TileEntityWindGenerator extends TileEntityGenerator implements IBoundingBlock {
 
-    public static final float SPEED = 32F;
-    public static final float SPEED_SCALED = 256F / SPEED;
+    private static final float SPEED = 32F;
 
     private double angle;
     private FloatingLong currentMultiplier = FloatingLong.ZERO;
@@ -75,10 +74,22 @@ protected void onUpdateServer() {
     protected void onUpdateClient() {
         super.onUpdateClient();
         if (getActive()) {
-            angle = (angle + (getBlockPos().getY() + 4F) / SPEED_SCALED) % 360;
+            angle = (angle + getHeightSpeedRatio()) % 360;
         }
     }
 
+    public float getHeightSpeedRatio() {
+        int height = getBlockPos().getY() + 4;
+        if (level == null) {
+            //Fallback to default values, but in general this is not going to happen
+            return SPEED * height / 384F;
+        }
+        //Shift so that a wind generator at the min build height acts as if it was at a height of zero
+        int minBuildHeight = level.getMinBuildHeight();
+        height += Math.abs(minBuildHeight);
+        return SPEED * height / (level.getMaxBuildHeight() - minBuildHeight);
+    }
+
     /**
      * Determines the current output multiplier, taking sky visibility and height into account.
      **/