[1.8] setAlwaysRenderNameTag, always and other questions

[big_red_frog]

Hi All,

 

After digging around with dataWatcher, I found that most info I wanted was already in there, or could be leveraged for my purposes. I can leverage my new working dataWatcher usage later, but for now I am looking at the nameTag functionality.

 

Specifically I want to render string information above my extended entities.

 

So I can use setAlwaysRenderNameTag( true ) and setCustomNameTag( myString )

 

But unfortunately it only seems to trigger the text string render, when they are pointed at, how do I make the text always render ( at least from a certain range )

 

Secondly, I was hoping for multi line text. I couldn't get away with '\n' it renders as an inline 'lf' character. Any known ways to achieve this?

 

Thanks for the timely help this community always offers up.

 

 

[big_red_frog]

So in answer to some of my question, I managed to make sense of this thread.

 

http://www.minecraftforge.net/forum/index.php/topic,28027.0.html

 

So I had to add to my entity code

 

    @Override
    @SideOnly(Side.CLIENT)
    public boolean getAlwaysRenderNameTagForRender()
    {
        return getAlwaysRenderNameTag();
    }

 

Anyone know why this function from EntityLivingBase otherwise returns false?

 

Seems odd not to actually use the AlwaysRender parameter as implemented.

 

Still wondering how I can go multiline...

[big_red_frog]

ugh.

 

My cunning plan is falling apart.

 

I use the event CameraSetup to trap when the camera is being configured and change the event yaw and pitch, so I can happily position the camera without teleporting my player viewer. This is something I see people advising against on here regularly ( teleporting to change viewpoint ).

 

OnCameraSetupEvent( CameraSetup event)
...
	event.pitch = firstRobotEntity.entity.cameraVec.pitch;
	event.yaw   = firstRobotEntity.entity.cameraVec.yaw;

 

However, it is clear that the renderer for the nameTag uses the player pitch and yaw rather than the camera pitch and yaw to decide on render plane, so if you are actually looking behind the player you can't see the name tag due to normals, or if your player is looking off at 45 degrees, the nameTag's are very twisted :-(

[big_red_frog]

Confirmed that the nameTag follows the player entity orientation for render plane :-(

 

So I have had to reintroduce forcing the player rotation to get reliable nameTag rendering.

 

Worse the yaw value for the player entity is 180 degrees offset to the camera yaw.

 

// this is for the player
	event.entity.rotationYaw = ( lookVec.yaw + 180 ) % 360;
	event.entity.rotationPitch = lookVec.pitch; 

// this is for the camera
	event.pitch = lookVec.pitch;
	event.yaw = lookVec.yaw;

 

Meanwhile I have working code. If anyone knows how to get multiline text here, then please flag, though I suspect I need to work out how to override the entire render function :-( Not somewhere I have so far dug, but needs must.

 

 

 

 

[big_red_frog]

Ended up overriding RenderLivingLabel(...)

 

Could of used drawSplitString(...) from FontRenderer, but I didn't want to use a fixed field width so did something slightly different as below.

 

   /**
     * Modified Renders an entity's name above its head
     */
    @Override
    protected void renderLivingLabel(Entity entity, String nameTag, double entX, double entY, double entZ, int maxDist)
    {
        double d3 = entity.getDistanceSqToEntity(this.renderManager.livingPlayer);
       
        if (d3 <= (double)(maxDist * maxDist))
        {      	
            List<String> strings = Arrays.asList(nameTag.split("\n"));
            Collections.reverse(strings);
            double offsetY = entity.height + 0.5;
            
            for ( String line : strings )
            {
//            	System.out.print( "render:" + line + ":\n");
            	renderText( line, entX, entY + offsetY, entZ );
            	offsetY += 0.3;
            }
        }
    }
    
    private void renderText( String text, double x, double y, double z )
    {
        int result = 0;
    	FontRenderer fontrenderer = this.getFontRendererFromRenderManager();
        float f = 1.6F;
        float f1 = 0.016666668F * f;
        GlStateManager.pushMatrix();
        
        GlStateManager.translate((float)x, (float)y, (float)z);
        GL11.glNormal3f(0.0F, 1.0F, 0.0F);
        GlStateManager.rotate(-this.renderManager.playerViewY, 0.0F, 1.0F, 0.0F);
        GlStateManager.rotate(this.renderManager.playerViewX, 1.0F, 0.0F, 0.0F);
        GlStateManager.scale(-f1, -f1, f1);
        GlStateManager.disableLighting();
        GlStateManager.depthMask(false);
        GlStateManager.disableDepth();
        GlStateManager.enableBlend();
        GlStateManager.tryBlendFuncSeparate(770, 771, 1, 0);
        Tessellator tessellator = Tessellator.getInstance();
        WorldRenderer worldrenderer = tessellator.getWorldRenderer();

        GlStateManager.disableTexture2D();
        worldrenderer.startDrawingQuads();
        int j = fontrenderer.getStringWidth(text) / 2;
        worldrenderer.setColorRGBA_F(0.0F, 0.0F, 0.0F, 0.25F);
        worldrenderer.addVertex((double)(-j - 1), -1.0, 0.0D);
        worldrenderer.addVertex((double)(-j - 1),  8.0, 0.0D);
        worldrenderer.addVertex((double)(j + 1),  8.0, 0.0D);
        worldrenderer.addVertex((double)(j + 1), -1.0, 0.0D);
        tessellator.draw();
        GlStateManager.enableTexture2D();
        fontrenderer.drawString(text, -fontrenderer.getStringWidth(text) / 2, 0, 553648127);
        GlStateManager.enableDepth();
        GlStateManager.depthMask(true);
        fontrenderer.drawString(text, -fontrenderer.getStringWidth(text) / 2, 0, -1);
        GlStateManager.enableLighting();
        GlStateManager.disableBlend();
        GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
        GlStateManager.popMatrix();   	
    }