Add files from mc-dev for diff visibility

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

@@ -0,0 +1,70 @@
+package net.minecraft.server;
+
+public class ControllerMove {
+
+    private EntityLiving a;
+    private double b;
+    private double c;
+    private double d;
+    private float e;
+    private boolean f = false;
+
+    public ControllerMove(EntityLiving entityliving) {
+        this.a = entityliving;
+        this.b = entityliving.locX;
+        this.c = entityliving.locY;
+        this.d = entityliving.locZ;
+    }
+
+    public boolean a() {
+        return this.f;
+    }
+
+    public float b() {
+        return this.e;
+    }
+
+    public void a(double d0, double d1, double d2, float f) {
+        this.b = d0;
+        this.c = d1;
+        this.d = d2;
+        this.e = f;
+        this.f = true;
+    }
+
+    public void c() {
+        this.a.f(0.0F);
+        if (this.f) {
+            this.f = false;
+            int i = MathHelper.floor(this.a.boundingBox.b + 0.5D);
+            double d0 = this.b - this.a.locX;
+            double d1 = this.d - this.a.locZ;
+            double d2 = this.c - (double) i;
+            double d3 = d0 * d0 + d2 * d2 + d1 * d1;
+
+            if (d3 >= 2.500000277905201E-7D) {
+                float f = (float) (Math.atan2(d1, d0) * 180.0D / 3.1415927410125732D) - 90.0F;
+
+                this.a.yaw = this.a(this.a.yaw, f, 30.0F);
+                this.a.e(this.e);
+                if (d2 > 0.0D && d0 * d0 + d1 * d1 < 1.0D) {
+                    this.a.getControllerJump().a();
+                }
+            }
+        }
+    }
+
+    private float a(float f, float f1, float f2) {
+        float f3 = MathHelper.g(f1 - f);
+
+        if (f3 > f2) {
+            f3 = f2;
+        }
+
+        if (f3 < -f2) {
+            f3 = -f2;
+        }
+
+        return f + f3;
+    }
+}