Add BlockPressurePlateWeighted.java for diff visibility

src/main/java/net/minecraft/server/BlockPressurePlateWeighted.java

@@ -0,0 +1,35 @@
+package net.minecraft.server;
+
+import java.util.List;
+
+public class BlockPressurePlateWeighted extends BlockPressurePlateAbstract {
+    private final int a;
+
+    protected BlockPressurePlateWeighted(String s, Material material, int i) {
+        super(s, material);
+        this.a = i;
+    }
+
+    protected int e(World world, int i, int j, int k) {
+        int l = Math.min(world.a(Entity.class, this.a(i, j, k)).size(), this.a);
+
+        if (l <= 0) {
+            return 0;
+        }
+
+        float f = (float) Math.min(this.a, l) / (float) this.a;
+        return MathHelper.f(f * 15.0F);
+    }
+
+    protected int c(int i) {
+        return i;
+    }
+
+    protected int d(int i) {
+        return i;
+    }
+
+    public int a(World world) {
+        return 10;
+    }
+}