missing tools and motd fixed

src/main/java/carpet/mixins/PickaxeItem_missingToolsMixin.java

@@ -0,0 +1,25 @@
+package carpet.mixins;
+
+import carpet.settings.CarpetSettings;
+import net.minecraft.block.BlockState;
+import net.minecraft.block.Material;
+import net.minecraft.item.PickaxeItem;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(PickaxeItem.class)
+public class PickaxeItem_missingToolsMixin
+{
+    @Redirect(method = "getMiningSpeed", at = @At(
+            value = "INVOKE",
+            target = "Lnet/minecraft/block/BlockState;getMaterial()Lnet/minecraft/block/Material;"
+    ))
+    private Material getCustomMaterial(BlockState blockState)
+    {
+        Material material = blockState.getMaterial();
+        if (CarpetSettings.missingTools && (material == Material.PISTON || material == Material.GLASS))
+            material = Material.STONE;
+        return material;
+    }
+}