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Author: Tyecon (posted 2013-03-25 09:48:47, viewed 244 times)

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package Rendering;

import IO.AssetHandler;
import IO.Entity;
import IO.Updatable;
import java.nio.FloatBuffer;
import org.lwjgl.BufferUtils;
import org.lwjgl.util.vector.Matrix4f;
import org.lwjgl.util.vector.Vector3f;

public class Matter extends Updatable {
    private Matrix4f model=new Matrix4f();
    private final Vector3f position=new Vector3f(0,0,-1);
    private final Vector3f rotation=new Vector3f();
    private final Vector3f scale=new Vector3f(1,1,1);
    private final String shaderID="Default";
    public final FloatBuffer modelBuffer, tranBuffer;
    
    public Matter() {
        this("Matter");
    }
    
    public Matter(String name) {
        this(name, null);
    }
    
    public Matter(String name, Entity parent) {
        super(name, parent);
        modelBuffer=BufferUtils.createFloatBuffer(16);
        tranBuffer=BufferUtils.createFloatBuffer(16);
        calculateModel();
    }    

    @Override
    public void Update() {
        recurseUpdate();
        AssetHandler.Shaders.get(shaderID).Bind(this);
        AssetHandler.Meshes.get("Cube").Draw();
        AssetHandler.Shaders.get(shaderID).Unbind();
    }
    
    private Matrix4f calculateModel() {
        model=new Matrix4f();
        Matrix4f.scale(scale, model, model);
        Matrix4f.translate(position, model, model);
        Matrix4f.rotate((float)Math.toRadians(rotation.z), new Vector3f(0,0,1), model, model);
        Matrix4f.rotate((float)Math.toRadians(rotation.y), new Vector3f(0,1,0), model, model);
        Matrix4f.rotate((float)Math.toRadians(rotation.x), new Vector3f(1,0,0), model, model);
        model.store(modelBuffer);
        modelBuffer.flip();
        Matrix4f normalMatrix=new Matrix4f();
        Matrix4f.transpose(model, normalMatrix);
        Matrix4f.invert(normalMatrix, normalMatrix);
        normalMatrix.store(tranBuffer);
        tranBuffer.flip();
        return model;
    }

    public Vector3f getPosition() {
        return position;
    }

    public Vector3f getRotation() {
        return rotation;
    }

    public Vector3f getScale() {
        return scale;
    }

    public void setPosition(Vector3f position) {
        this.position.set(position);
        calculateModel();
    }

    public void setRotation(Vector3f rotation) {
        this.rotation.set(rotation);
        calculateModel();
    }
    
    public void setScale(Vector3f scale) {
        this.scale.set(scale);
        calculateModel();
    }
}





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