Initial Commit

codechicken/lib/vec/Scale.java

@@ -0,0 +1,67 @@
+package codechicken.lib.vec;
+
+import java.math.BigDecimal;
+import java.math.MathContext;
+import java.math.RoundingMode;
+
+import org.lwjgl.opengl.GL11;
+
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
+public class Scale extends Transformation
+{
+    private Vector3 factor;
+    
+    public Scale(Vector3 factor)
+    {
+        this.factor = factor;
+    }
+
+    public Scale(double factor)
+    {
+        this(new Vector3(factor, factor, factor));
+    }
+    
+    public Scale(double x, double y, double z)
+    {
+        this(new Vector3(x, y, z));
+    }
+
+    @Override
+    public void apply(Vector3 vec)
+    {
+        vec.multiply(factor);
+    }
+    
+    @Override
+    public void applyN(Vector3 normal)
+    {
+    }
+    
+    @Override
+    public void apply(Matrix4 mat)
+    {
+        mat.scale(factor);
+    }
+    
+    @Override
+    @SideOnly(Side.CLIENT)
+    public void glApply()
+    {
+        GL11.glScaled(factor.x, factor.y, factor.z);
+    }
+    
+    @Override
+    public Transformation inverse()
+    {
+        return new Scale(1/factor.x, 1/factor.y, 1/factor.z);
+    }
+    
+    @Override
+    public String toString()
+    {
+        MathContext cont = new MathContext(4, RoundingMode.HALF_UP);
+        return "Scale("+new BigDecimal(factor.x, cont)+", "+new BigDecimal(factor.y, cont)+", "+new BigDecimal(factor.z, cont)+")";
+    }
+}