Added Trait Crushing, changed old assignment, fixed two variables to prevent annoyance

src/main/java/com/sosnitzka/taiga/traits/TraitCrushing.java

@@ -0,0 +1,35 @@
+package com.sosnitzka.taiga.traits;
+
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.init.Blocks;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.text.TextFormatting;
+import net.minecraftforge.event.world.BlockEvent;
+import slimeknights.tconstruct.library.traits.AbstractTrait;
+
+public class TraitCrushing extends AbstractTrait {
+
+    public TraitCrushing() {
+        super(TraitCrushing.class.getSimpleName().toLowerCase().substring(5), TextFormatting.GRAY);
+    }
+
+
+    @Override
+    public void blockHarvestDrops(ItemStack tool, BlockEvent.HarvestDropsEvent e) {
+        if (!e.getWorld().isRemote) {
+            IBlockState state = e.getState();
+            float f = random.nextFloat();
+            if (state.equals(Blocks.STONE.getDefaultState())) {
+                e.getDrops().clear();
+                if (f < .3f) {
+                    e.getDrops().add(new ItemStack(Blocks.SAND));
+                } else if (f < .6f) {
+                    e.getDrops().add(new ItemStack(Blocks.GRAVEL));
+                } else if (f <= .9f) {
+                    e.getDrops().add(new ItemStack(Blocks.COBBLESTONE));
+                } else e.getDrops().add(new ItemStack(Blocks.STONE));
+            }
+        }
+    }
+
+}