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How to Render a PlayerName above a Block?


Busti
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Hello,

is there any easy way to render a Text above a Block like the Text above the Player?

I'am trying to display some information above a Block when a Player clicks it with a special Item but only showing it in the chat seems a little bit boring  ;D

 

I'm looking forward to your Help

 

Busti

PM's regarding modding questions should belong in the Modder Support sub-forum and won't be answered.

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either get it from someone who already done this, copy over what vanilla minecraft is using or make a fontRenderer yourself from scratch.

 

i suggest you do not make 1 from scratch becuase its a pain to implements. though if you want i can share mine.

 

you will also need a TileEntitySpecialRenderer

how to debug 101:http://www.minecraftforge.net/wiki/Debug_101

-hydroflame, author of the forge revolution-

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import java.util.HashMap;

 

import org.lwjgl.opengl.GL11;

 

import net.minecraft.client.Minecraft;

import net.minecraft.client.renderer.Tessellator;

 

public class NewFontRenderer{

public static NewFontRenderer instance = new NewFontRenderer ();

 

private HashMap<Character, float[]> map = new HashMap<Character, float[]>();

public NewFontRenderer (){

int i = 0;

map.put('a', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('b', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('c', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('d', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('e', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('f', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('g', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('h', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('i', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('j', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('k', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('l', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('m', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('n', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('o', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('p', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('q', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('r', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('s', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('t', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('u', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('v', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('w', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('x', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('y', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('z', new float[]{(i++*34)/3196f, (i*34)/3196f});

 

map.put('A', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('B', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('C', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('D', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('E', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('F', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('G', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('H', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('I', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('J', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('K', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('L', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('M', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('N', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('O', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('P', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('Q', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('R', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('S', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('T', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('U', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('V', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('W', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('X', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('Y', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('Z', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('1', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('2', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('3', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('4', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('5', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('6', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('7', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('8', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('9', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('0', new float[]{(i++*34)/3196f, (i*34)/3196f});

 

map.put('-', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('=', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('`', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('!', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('@', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('#', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('$', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('%', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('^', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('&', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('*', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('(', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put(')', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('_', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('+', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('~', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put(',', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('.', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('/', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put(';', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('\'', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('[', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put(']', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('\\', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('<', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('>', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('?', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put(':', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('"', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('{', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('}', new float[]{(i++*34)/3196f, (i*34)/3196f});

map.put('|', new float[]{(i++*34)/3196f, (i*34)/3196f});

}

 

public void drawString(String s,int x, int y, int height, boolean is3D, float r, float g, float b){

if(!is3D){

int originX = x;

Tessellator tess = Tessellator.instance;

Minecraft.getMinecraft().renderEngine.bindTexture("sf.png");

tess.startDrawingQuads();

tess.setColorOpaque_F(r, g, b);

for(int i =0; i < s.length(); i++){

char c = s.charAt(i);

if(c == '\n'){

y += height;

x = originX;

continue;

}

if(c == ' '){

x += height*3/4;

continue;

}

float[] coord = map.get©;

 

tess.addVertexWithUV(x, y, 0, coord[0], 0);

tess.addVertexWithUV(x, y+height, 0, coord[0], 1);

tess.addVertexWithUV(x+height*(1+coord[1]-coord[0]), y+height, 0, coord[1], 1f);

tess.addVertexWithUV(x+height*(1+coord[1]-coord[0]), y, 0, coord[1], 0);

x += height*(1+coord[1]-coord[0]);

}

tess.draw();

}else{

int originX = x;

Tessellator tess = Tessellator.instance;

Minecraft.getMinecraft().renderEngine.bindTexture(ForgeRevCommonProxy.sf);

tess.startDrawingQuads();

tess.setColorOpaque(0, 0, 255);

for(int i =0; i < s.length(); i++){

char c = s.charAt(i);

if(c == '\n'){

y += height;

x = originX;

continue;

}

if(c == ' '){

x += height*3/4;

continue;

}

float[] coord = map.get©;

 

tess.addVertexWithUV(x, y, 0, coord[1], 1);

tess.addVertexWithUV(x, y+height, 0, coord[1], 0);

tess.addVertexWithUV(x+height*(1+coord[1]-coord[0]), y+height, 0, coord[0], 0);

tess.addVertexWithUV(x+height*(1+coord[1]-coord[0]), y, 0, coord[0], 1);

x -= height*(1+coord[1]-coord[0]);

}

tess.draw();

}

}

}

 

 

 

 

basicly this, make sure you have the file "sf.png"  at the root of miencraft.jar (if you're in eclipse its the root of "moddirectory/jars/bin/minecraft.jar"  )

and to make a draw call (most likely from a TileEntitySpecialRenderer)

 

FontRendererFR.instance.drawString(message, startX, startY, heightOfTheLetter, isItFor3DOr2D, red, green, blue);

 

 

 

the image is here

http://imagebin.org/index.php?mode=image&id=262660

http://imagebin.org/262660

 

 

is looks all white, but thats becasue the site doesnt accept alpha, if you zoom in enough youll see that theres is actually an alphabet there, and if you save the image itll be transparent

how to debug 101:http://www.minecraftforge.net/wiki/Debug_101

-hydroflame, author of the forge revolution-

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