info.plugmania.novacraft.event.gui.Render3DOverlayEvent.java Source code

Introduction

Here is the source code for info.plugmania.novacraft.event.gui.Render3DOverlayEvent.java

Source

/*
   Additional permission is granted, as an exception allowed under section
   7 of the GNU GPLv3 to allow the inclusion of modified versions of source
   code derived from the decompilation of Minecraft as if they were covered
   by the licence.
       
   You are completely free to remove this exception, however, it will
   mean you are unable to convey the modifications to Minecraft files
   (the modifications are under the GNU GPLv3) within the files they
   modify unless you use a similar exception yourself.
       
       
NovaCraft - Minecraft client side modding API
Copyright (C) 2012 korikisulda
    
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 3 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, see <http://www.gnu.org/licenses/>.
*/
package info.plugmania.novacraft.event.gui;

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

import net.minecraft.client.Minecraft;
import net.minecraft.src.EntityClientPlayerMP;
import info.plugmania.novacraft.event.Event;
import info.plugmania.novacraft.maths.Position;

/**
 * Allows in-game rendering of lines and shapes
 */
public class Render3DOverlayEvent extends Event {
    private EntityClientPlayerMP p;

    public Render3DOverlayEvent() {
        p = Minecraft.getMinecraft().thePlayer;
    }

    public void drawLine(Position point1, Position point2, int colour, float lineWidth) {
        float red = (float) (colour >> 24 & 255) / 255.0F;
        float green = (float) (colour >> 16 & 255) / 255.0F;
        float blue = (float) (colour >> 8 & 255) / 255.0F;
        float alpha = (float) (colour & 255) / 255.0F;
        GL11.glColor4f(red, green, blue, alpha);
        GL11.glLineWidth(lineWidth);
        enable();
        GL11.glBegin(GL11.GL_LINES);
        GL11.glVertex3d(point1.getX() - p.posX, point1.getY() - p.posY, point1.getZ() - p.posZ);
        GL11.glVertex3d(point2.getX() - p.posX, point2.getY() - p.posY, point2.getZ() - p.posZ);
        GL11.glEnd();
        disable();
    }

    public void drawCylinder(Position position, float radius, int slices, int stacks, float lineWidth, int colour) {
        float red = (float) (colour >> 24 & 255) / 255.0F;
        float green = (float) (colour >> 16 & 255) / 255.0F;
        float blue = (float) (colour >> 8 & 255) / 255.0F;
        float alpha = (float) (colour & 255) / 255.0F;
        Cylinder cylinder = new Cylinder();
        enable();
        GL11.glColor4f(red, green, blue, alpha);
        GL11.glTranslated(position.getX() - p.posX, position.getY() - p.posY, position.getZ() - p.posZ);
        GL11.glRotatef(600F, 1, 1, 1);
        GL11.glLineWidth(lineWidth);
        cylinder.setDrawStyle(GLU.GLU_SILHOUETTE);
        cylinder.draw(radius, radius, 2F, slices, stacks);
        disable();

    }

    public void drawSphere(Position position, float size, int slices, int stacks, float lineWidth, int colour) {
        float red = (float) (colour >> 24 & 255) / 255.0F;
        float green = (float) (colour >> 16 & 255) / 255.0F;
        float blue = (float) (colour >> 8 & 255) / 255.0F;
        float alpha = (float) (colour & 255) / 255.0F;
        Sphere sphere = new Sphere();
        enable();
        GL11.glColor4f(red, green, blue, alpha);
        GL11.glTranslated(position.getX() - p.posX, position.getY() - p.posY, position.getZ() - p.posZ);
        GL11.glRotatef(600F, 1, 1, 1);
        GL11.glLineWidth(lineWidth);
        sphere.setDrawStyle(GLU.GLU_SILHOUETTE);
        sphere.draw(size, slices, stacks);
        disable();
    }

    public void enable() {
        GL11.glPushMatrix();
        GL11.glDepthMask(false);
        GL11.glDisable(GL11.GL_DEPTH_TEST);
        GL11.glEnable(GL11.GL_BLEND);
        ;
        GL11.glDisable(GL11.GL_TEXTURE_2D);
        GL11.glDisable(GL11.GL_LIGHTING);
        GL11.glBlendFunc(770, 771);
        GL11.glEnable(GL11.GL_LINE_SMOOTH);
        Minecraft.getMinecraft().entityRenderer.disableLightmap(1.0D);
    }

    public void disable() {
        Minecraft.getMinecraft().entityRenderer.enableLightmap(1.0D);
        GL11.glDepthMask(true);
        GL11.glEnable(GL11.GL_DEPTH_TEST);
        GL11.glDisable(GL11.GL_LINE_SMOOTH);
        GL11.glEnable(GL11.GL_LIGHTING);
        GL11.glDisable(GL11.GL_BLEND);
        GL11.glEnable(GL11.GL_TEXTURE_2D);
        GL11.glPopMatrix();
    }

}