create BinaryArithmeticSampler

common/addons/config-noise-function/src/main/java/com/dfsek/terra/addons/noise/samplers/arithmetic/BinaryArithmeticSampler.java

@@ -0,0 +1,26 @@
+package com.dfsek.terra.addons.noise.samplers.arithmetic;
+
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+public abstract class BinaryArithmeticSampler implements NoiseSampler {
+    private final NoiseSampler left;
+    private final NoiseSampler right;
+    
+    protected BinaryArithmeticSampler(NoiseSampler left, NoiseSampler right) {
+        this.left = left;
+        this.right = right;
+    }
+    
+    @Override
+    public double noise(long seed, double x, double y) {
+        return operate(left.noise(seed, x, y),right.noise(seed, x, y));
+    }
+    
+    @Override
+    public double noise(long seed, double x, double y, double z) {
+        return operate(left.noise(seed, x, y, z), right.noise(seed, x, y, z));
+    }
+    
+    public abstract double operate(double left, double right);
+}