hud.UnitDisplay.java Source code

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Here is the source code for hud.UnitDisplay.java

Source

/*
 *    Herzog3D - 3D Real Time Strategy game.
 *   Copyright (C) 2005  Shannon Smith
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
package hud;

import herzog3d.Player;

import org.lwjgl.opengl.GL11;
import org.lwjgl.util.glu.GLU;

import unit.Unit;
import unit.UnitFactory;
import util.GLUtils;

public class UnitDisplay extends HZWidget {

    private UnitFactory factory;
    private Unit currentUnit;
    private float angle;
    private Player player;

    public UnitDisplay(Player player, UnitFactory factory, HZWidget parent) {
        super(parent);
        this.factory = factory;
        this.player = player;
        currentUnit = factory.buildUnit(null, "Tank");
        currentUnit.setOwner(player);
    }

    public String getDisplayedUnitName() {
        return currentUnit.getName();
    }

    public void update(float step) {
        angle += 1.0f * step;
    }

    public void draw() {
        GL11.glPolygonMode(GL11.GL_FRONT, GL11.GL_LINE);
        GL11.glColor4f(0.0f, 0.0f, 0.4f, 1.0f);
        GL11.glLineWidth(2.0f);
        GL11.glBegin(GL11.GL_QUADS);
        GL11.glVertex2i(x, y);
        GL11.glVertex2i(x, y + height);
        GL11.glVertex2i(x + width, y + height);
        GL11.glVertex2i(x + width, y);
        GL11.glEnd();

        GL11.glPolygonMode(GL11.GL_FRONT, GL11.GL_FILL);
        GL11.glColor4f(0.0f, 0.5f, 1.0f, 0.8f);
        GL11.glEnable(GL11.GL_BLEND);
        GL11.glBegin(GL11.GL_QUADS);
        GL11.glVertex2i(x, y);
        GL11.glVertex2i(x, y + height);
        GL11.glVertex2i(x + width, y + height);
        GL11.glVertex2i(x + width, y);
        GL11.glEnd();
        GL11.glDisable(GL11.GL_BLEND);

        int[] viewport = GLUtils.getViewport();

        GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);
        GL11.glEnable(GL11.GL_DEPTH_TEST);
        GL11.glEnable(GL11.GL_LIGHTING);
        GL11.glMatrixMode(GL11.GL_PROJECTION);
        GL11.glPushMatrix();
        GL11.glLoadIdentity();
        GLU.gluPerspective(45, 1.0f, 0.001f, 5.0f);
        GL11.glViewport(getX(), viewport[3] - (getY() + height), width, height);
        GL11.glMatrixMode(GL11.GL_MODELVIEW);
        GL11.glPushMatrix();
        GL11.glLoadIdentity();
        GLU.gluLookAt(2.0f * (float) Math.cos(angle), 2.0f * (float) Math.sin(angle), 1.0f, 0, 0, 0, 0, 0, 1);
        //        GL11.glTranslatef(x + width/2, y + height/2,0);
        currentUnit.draw();
        GL11.glMatrixMode(GL11.GL_PROJECTION);
        GL11.glPopMatrix();
        GL11.glMatrixMode(GL11.GL_MODELVIEW);
        GL11.glPopMatrix();
        GL11.glViewport(viewport[0], viewport[1], viewport[2], viewport[3]);
        GL11.glDisable(GL11.GL_DEPTH_TEST);
        GL11.glDisable(GL11.GL_LIGHTING);
    }

}