package lsystem.screen.gl3d;

import com.jogamp.opengl.GL2;
import com.jogamp.opengl.util.gl2.GLUT;
import lsystem.screen.AbstractCanvas;
import lsystem.screen.gl2d.Point2;

public class DrawHelper {

	public static void placeCamera(GL2 gl, AbstractCanvas canvas) {
		gl.glRotatef(canvas.camera[4], 1f, 0f, 0f);
		gl.glRotatef(canvas.camera[3], 0f, 1f, 0f);
		gl.glRotatef(canvas.camera[5], 0f, 0f, 1f);
	}

	public static void drawAxes(GL2 gl, GLUT glut) {
		gl.glRasterPos3f(0f, 0f, 0f);
		gl.glColor3f(255f, 0f, 0f);
		gl.glBegin(GL2.GL_LINES);
		gl.glVertex3f(0f, 0f, 0f);
		gl.glVertex3f(1f, 0f, 0f);

		gl.glVertex3f(0f, 0f, 0f);
		gl.glVertex3f(0f, 1f, 0f);

		gl.glVertex3f(0f, 0f, 0f);
		gl.glVertex3f(0f, 0f, 1f);

		gl.glColor3f(255f, 255f, 255f);
		for (int i = -20; i < 21; i++) {
			gl.glVertex3f(-20f, 0f, i);
			gl.glVertex3f(20f, 0f, i);

			gl.glVertex3f(i, 0, -20f);
			gl.glVertex3f(i, 0, 20f);
		}
		gl.glEnd();
		gl.glRasterPos3f(1.1f, 0.0f, 0.0f);
		glut.glutBitmapCharacter(GLUT.BITMAP_HELVETICA_18, 'X');
		gl.glRasterPos3f(0.0f, 1.1f, 0.0f);
		glut.glutBitmapCharacter(GLUT.BITMAP_HELVETICA_18, 'Y'); // draw the y axis
		gl.glRasterPos3f(0.0f, 0.0f, 1.1f);
		glut.glutBitmapCharacter(GLUT.BITMAP_HELVETICA_18, 'Z'); // draw the z axis
	}

	public static void drawRectangularPrism(GL2 gl, float leftBottomX, float leftBottomY, float leftBottomZ,
			float rightUpX, float rightUpY, float rightUpZ) {
		gl.glPushMatrix();
		gl.glBegin(GL2.GL_QUADS);
		gl.glVertex3f(leftBottomX, leftBottomY, leftBottomZ);
		gl.glVertex3f(rightUpX, leftBottomY, leftBottomZ);
		gl.glVertex3f(rightUpX, rightUpY, leftBottomZ);
		gl.glVertex3f(leftBottomX, rightUpY, leftBottomZ);

		gl.glVertex3f(leftBottomX, leftBottomY, leftBottomZ);
		gl.glVertex3f(leftBottomX, leftBottomY, rightUpZ);
		gl.glVertex3f(leftBottomX, rightUpY, rightUpZ);
		gl.glVertex3f(leftBottomX, rightUpY, leftBottomZ);

		gl.glVertex3f(rightUpX, leftBottomY, leftBottomZ);
		gl.glVertex3f(rightUpX, leftBottomY, rightUpZ);
		gl.glVertex3f(rightUpX, rightUpY, rightUpZ);
		gl.glVertex3f(rightUpX, rightUpY, leftBottomZ);

		gl.glVertex3f(leftBottomX, leftBottomY, rightUpZ);
		gl.glVertex3f(rightUpX, leftBottomY, rightUpZ);
		gl.glVertex3f(rightUpX, rightUpY, rightUpZ);
		gl.glVertex3f(leftBottomX, rightUpY, rightUpZ);

		gl.glVertex3f(leftBottomX, leftBottomY, leftBottomZ);
		gl.glVertex3f(rightUpX, leftBottomY, leftBottomZ);
		gl.glVertex3f(rightUpX, leftBottomY, rightUpZ);
		gl.glVertex3f(leftBottomX, leftBottomY, rightUpZ);

		gl.glVertex3f(leftBottomX, rightUpY, leftBottomZ);
		gl.glVertex3f(rightUpX, rightUpY, leftBottomZ);
		gl.glVertex3f(rightUpX, rightUpY, rightUpZ);
		gl.glVertex3f(leftBottomX, rightUpY, rightUpZ);
		gl.glEnd();
		gl.glPopMatrix();
	}

	public static void drawDebugInformation(GL2 gl, GLUT glut, AbstractCanvas canvas) {
		gl.glRasterPos3f(canvas.camera[0], canvas.camera[1], canvas.camera[2] - 1);
		gl.glColor3f(1f, 1f, 1f);
		glut.glutBitmapString(GLUT.BITMAP_HELVETICA_18,
				"x=" + canvas.camera[0] + ", y=" + canvas.camera[1] + ", z=" + canvas.camera[2] + "\n yaw = "
						+ canvas.camera[3] + "  pitch = " + canvas.camera[4] + " roll = " + canvas.camera[5]);
	}

	public static void drawStick(GL2 gl, Point2 origin, Point2 newOrigin) {

		gl.glBegin(GL2.GL_LINES);
		gl.glVertex2f(origin.getX(), origin.getY());
		gl.glVertex2f(newOrigin.getX(), newOrigin.getY());
		gl.glEnd();
	}



}