package framework.RWT;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import javax.microedition.khronos.opengles.GL10;
import javax.microedition.khronos.opengles.GL11;
import javax.microedition.khronos.opengles.GL11Ext;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.opengl.GLES20;
import android.opengl.GLSurfaceView;
import android.opengl.GLUtils;

import framework.model3D.Position3D;
import java3d.ImageComponent2D;
import java3d.Texture;
import java3d.TextureLoader;

public class RWTSprite {
    private int[] textureNo = null;
    private TextureLoader texLoader;
    private Texture tex;

    // 表示座標
    private Position3D pos = new Position3D(0.f, 0.f, 0.f);
    private Position3D texSize = new Position3D(0.f, 0.f, 0.f);
    private Position3D texPos = new Position3D(0.f, 0.f, 0.f);
    private Position3D viewSize = new Position3D(0.f, 0.f, 0.f);

    public RWTSprite(final RWTSurfaceView surface) {
        surface.addSprite(this);
    }

    final public Position3D getPosition() {
        return pos;
    }

    final public Position3D getViewSize() {
        return viewSize;
    }

    final public Position3D getTextureSize() {
        return texSize;
    }

    /**
     * テクスチャ設定
     *
     * @author s.iwatani
     * @param res
     * @param id
     */
    public void setTexture(Resources res, int id, int flags, GL10 gl) {
        texLoader = new TextureLoader(res, id, flags);
        ImageComponent2D image = texLoader.getImage();
        tex = texLoader.getTexture();
        texPos.setX(0.f);
        texPos.setY(image.getBitmap().getHeight());
        texSize.setX(image.getBitmap().getWidth());
        texSize.setY(-image.getBitmap().getHeight());
        pos.setX(0.f);
        pos.setY(0.f);
        pos.setZ(0.f);
        viewSize.setX((float)image.getBitmap().getWidth());
        viewSize.setY((float)image.getBitmap().getHeight());
    }

    public void draw(GL10 gl) {
        int[] textureId = new int[1];
        gl.glGenTextures(1, textureId, 0);
        //テクスチャIDに対応するテクスチャをバインドする
        gl.glBindTexture(GL10.GL_TEXTURE_2D, textureNo[0]);
        //テクスチャの座標と幅と高さを指定
        int rect[] = {(int)texPos.getX(), (int)texPos.getY(), (int)texSize.getX(), (int)texSize.getY()};
        ((GL11) gl).glTexParameteriv(GL10.GL_TEXTURE_2D,GL11Ext.GL_TEXTURE_CROP_RECT_OES, rect, 0);
        ((GL11Ext) gl).glDrawTexfOES((int)pos.getX(), (int)pos.getY(), 0, (int)viewSize.getX(), (int)viewSize.getY());
    }
}