initial commit

java/src/game/world/Vec3i.java

@@ -0,0 +1,124 @@
+package game.world;
+
+import game.ExtMath;
+
+public class Vec3i implements Comparable<Vec3i>
+{
+//    /** The Null vector constant (0, 0, 0) */
+//    public static final Vec3i NULL_VECTOR = new Vec3i(0, 0, 0);
+
+    /** X coordinate */
+    private final int x;
+
+    /** Y coordinate */
+    private final int y;
+
+    /** Z coordinate */
+    private final int z;
+
+    public Vec3i(int xIn, int yIn, int zIn)
+    {
+        this.x = xIn;
+        this.y = yIn;
+        this.z = zIn;
+    }
+
+    public Vec3i(double xIn, double yIn, double zIn)
+    {
+        this(ExtMath.floord(xIn), ExtMath.floord(yIn), ExtMath.floord(zIn));
+    }
+
+    public boolean equals(Object p_equals_1_)
+    {
+        if (this == p_equals_1_)
+        {
+            return true;
+        }
+        else if (!(p_equals_1_ instanceof Vec3i))
+        {
+            return false;
+        }
+        else
+        {
+            Vec3i vec3i = (Vec3i)p_equals_1_;
+            return this.getX() != vec3i.getX() ? false : (this.getY() != vec3i.getY() ? false : this.getZ() == vec3i.getZ());
+        }
+    }
+
+    public int hashCode()
+    {
+        return (this.getY() + this.getZ() * 31) * 31 + this.getX();
+    }
+
+    public int compareTo(Vec3i p_compareTo_1_)
+    {
+        return this.getY() == p_compareTo_1_.getY() ? (this.getZ() == p_compareTo_1_.getZ() ? this.getX() - p_compareTo_1_.getX() : this.getZ() - p_compareTo_1_.getZ()) : this.getY() - p_compareTo_1_.getY();
+    }
+
+    /**
+     * Get the X coordinate
+     */
+    public int getX()
+    {
+        return this.x;
+    }
+
+    /**
+     * Get the Y coordinate
+     */
+    public int getY()
+    {
+        return this.y;
+    }
+
+    /**
+     * Get the Z coordinate
+     */
+    public int getZ()
+    {
+        return this.z;
+    }
+
+    /**
+     * Calculate the cross product of this and the given Vector
+     */
+    public Vec3i crossProduct(Vec3i vec)
+    {
+        return new Vec3i(this.getY() * vec.getZ() - this.getZ() * vec.getY(), this.getZ() * vec.getX() - this.getX() * vec.getZ(), this.getX() * vec.getY() - this.getY() * vec.getX());
+    }
+
+    /**
+     * Calculate squared distance to the given coordinates
+     */
+    public double distanceSq(double toX, double toY, double toZ)
+    {
+        double d0 = (double)this.getX() - toX;
+        double d1 = (double)this.getY() - toY;
+        double d2 = (double)this.getZ() - toZ;
+        return d0 * d0 + d1 * d1 + d2 * d2;
+    }
+
+    /**
+     * Compute square of distance from point x, y, z to center of this Block
+     */
+    public double distanceSqToCenter(double xIn, double yIn, double zIn)
+    {
+        double d0 = (double)this.getX() + 0.5D - xIn;
+        double d1 = (double)this.getY() + 0.5D - yIn;
+        double d2 = (double)this.getZ() + 0.5D - zIn;
+        return d0 * d0 + d1 * d1 + d2 * d2;
+    }
+
+    /**
+     * Calculate squared distance to the given Vector
+     */
+    public double distanceSq(Vec3i to)
+    {
+        return this.distanceSq((double)to.getX(), (double)to.getY(), (double)to.getZ());
+    }
+
+    public String toString()
+    {
+        return this.getX() + ", " + this.getY() + ", " + this.getZ();
+    }
+}