1 files changed, 111 insertions, 0 deletions
diff --git a/src/ru/olamedia/math/ViewMatrix.java b/src/ru/olamedia/math/ViewMatrix.java
new file mode 100644
index 0000000..dad4778
--- /dev/null
+++ b/src/ru/olamedia/math/ViewMatrix.java
@@ -0,0 +1,111 @@
+package ru.olamedia.math;
+
+public class ViewMatrix extends Matrix4f {
+	private Matrix4f translation = new Matrix4f();
+	private Matrix4f scale = new Matrix4f();
+	private Matrix4f rotation = new Matrix4f();
+	private TransformMatrix transform = new TransformMatrix();
+
+	public ViewMatrix() {
+		translation.setIdentity();
+		scale.setIdentity();
+		rotation.setIdentity();
+		transform.setIdentity();
+		pack();
+	}
+
+	public void pack() {
+		loadIdentity();
+		transform.loadIdentity();
+		transform.applyScale(scale);
+		transform.applyRotation(rotation);
+		transform.applyTranslation(translation);
+		apply(transform);
+		@SuppressWarnings("unused")
+		float[] t = transform.toFloatArray();
+
+		// this.m[12] = 0;
+		// this.m[13] = 0;
+		// this.m[14] = 0;
+		// Fill translation:
+		// this.m[3] = -(t[0] * t[12] + t[1] * t[13] + t[2] * t[14]);
+		// this.m[7] = -(t[4] * t[12] + t[5] * t[13] + t[6] * t[14]);
+		// this.m[11] = (t[8] * t[12] + t[9] * t[13] + t[10] * t[14]);
+		// m[12] = -(t[0] * t[12] + t[1] * t[13] + t[2] * t[14]);
+		// m[13] = -(t[4] * t[12] + t[5] * t[13] + t[6] * t[14]);
+		// m[14] = (t[8] * t[12] + t[9] * t[13] + t[10] * t[14]);
+	}
+
+	public float getX() {
+		return -translation.get(12);
+	}
+
+	public float getY() {
+		return -translation.get(13);
+	}
+
+	public float getZ() {
+		return -translation.get(14);
+	}
+
+	/**
+	 * @return the translation
+	 */
+	public Matrix4f getTranslation() {
+		return translation;
+	}
+
+	/**
+	 * @param translation
+	 *            the translation to set
+	 */
+	public void setTranslation(Matrix4f translation) {
+		this.translation = translation;
+	}
+
+	/**
+	 * @return the scale
+	 */
+	public Matrix4f getScale() {
+		return scale;
+	}
+
+	/**
+	 * @param scale
+	 *            the scale to set
+	 */
+	public void setScale(Matrix4f scale) {
+		this.scale = scale;
+	}
+
+	/**
+	 * @return the rotation
+	 */
+	public Matrix4f getRotation() {
+		return rotation;
+	}
+
+	/**
+	 * @param rotation
+	 *            the rotation to set
+	 */
+	public void setRotation(Matrix4f rotation) {
+		this.rotation = rotation;
+	}
+
+	public void rotateX(float degrees) {
+		setRotation(getRotation().multiply(Matrix4f.rotateXMatrix(degrees)));
+	}
+
+	public void rotateY(float degrees) {
+		setRotation(getRotation().multiply(Matrix4f.rotateYMatrix(degrees)));
+	}
+
+	public void rotateZ(float degrees) {
+		setRotation(getRotation().multiply(Matrix4f.rotateZMatrix(degrees)));
+	}
+
+	public Matrix4f getTransform() {
+		return transform;
+	}
+}