[1.7.10]Arriving in Dimension Event/Fading GUI Elements Out

[Izzy Axel]

How do you "hook" a player arriving in a dimension?

 

 

How would you continually fade a HUD element out?  I assume this requires OpenGL, which I'm not very familiar with. HUD

[jabelar]

How would you continually fade a HUD element out?  I assume this requires OpenGL, which I'm not very familiar with.

 

In your drawScreen() method of your GUI you would use a GL.11 alpha setting. I don't know much about GL.11 either but simply look up GL transparency, like at this link: http://relativity.net.au/gaming/java/Transparency.html. I think one approach is that you could create colors with increasing transparency and use those when you draw the GUI. There is probably another way to take the whole "matrix" and change it's transparency.

[Ernio]

How do you "hook" a player arriving in a dimension?

PlayerChangedDimensionEvent

FML event, has from and to dimension.

[Izzy Axel]

Alright, the only thing left is the blending...it's just not doing what I'm expecting due to my lack of knowledge of OGL, it's not automating at all.

 

 

EntityPlayer player = Minecraft.getMinecraft().thePlayer;
DLFileHandler.readConfig();
this.cardName = DLFileHandler.queryDimName(player.dimension);
GL11.glDisable(GL11.GL_LIGHTING);
this.mc.renderEngine.bindTexture(cardTexture);
int cardBorder = 2;
int cardOffset = 6;
int cardWidth = 84;
int cardHeight = 14;
int color = 0xdcdcdc;
this.drawTexturedModalRect(cardOffset, cardOffset, 0, 0, cardWidth, cardHeight);
int stringWidth = mc.fontRenderer.getStringWidth(cardName);
this.mc.fontRenderer.drawStringWithShadow(cardName, (((cardWidth - cardBorder - cardOffset) / 2) + 1) - (stringWidth / 3), 9, color);
--this.cardTime;
if(cardTime < 80)
{
   GL11.glEnable(GL11.GL_BLEND);
   GL11.glBlendFunc(GL11.GL_SRC_COLOR, GL11.GL_ONE_MINUS_SRC_COLOR);
   GL11.glColor4f(0.5F, 0.5F, 0.5F, (float)this.cardTime / 80);
}
if(cardTime < 1)
{
   cardTime = cardTimeMax;
   arrived = false;

}

 

 

This does nothing, it still just abruptly disappears, and there's no blending going on.

[Ernio]

You need to call GL before you draw

 

EDIT

Also few things - when you finish (depending WHERE are you drawing things) you need to get back to previous state. Where are you drawing your cards? (From where*, my guess overlay event?)

[Izzy Axel]

Yeah: HUD

 

 

Edit: Ok, now the modal rect fades properly but the string doesn't :I

 

 

	@SubscribeEvent
public void onRender(RenderGameOverlayEvent event)
{
	if(event.isCancelable() || event.type != RenderGameOverlayEvent.ElementType.HOTBAR)
	{
		return;
	}
	if(arrived)
	{
		EntityPlayer player = Minecraft.getMinecraft().thePlayer;
		DLFileHandler.readConfig();
		this.cardName = DLFileHandler.queryDimName(player.dimension);
		int cardBorder = 2;
		int cardOffset = 6;
		int cardWidth = 84;
		int cardHeight = 14;
		int color = 0xdcdcdc;
		int stringWidth = mc.fontRenderer.getStringWidth(cardName);
		--this.cardTime;
		if(this.cardTime >= 81)
		{
			GL11.glDisable(GL11.GL_LIGHTING);
			GL11.glEnable(GL11.GL_BLEND);
			GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
			GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
			this.mc.renderEngine.bindTexture(cardTexture);
			this.drawTexturedModalRect(cardOffset, cardOffset, 0, 0, cardWidth, cardHeight);
			this.mc.fontRenderer.drawStringWithShadow(cardName, (((cardWidth - cardBorder - cardOffset) / 2) + 1) - (stringWidth / 3), 9, color);
		}
		if(this.cardTime < 81)
		{
			GL11.glDisable(GL11.GL_LIGHTING);
			GL11.glEnable(GL11.GL_BLEND);
			GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
			GL11.glColor4f(1.0F, 1.0F, 1.0F, (float)this.cardTime / 80);
			this.mc.renderEngine.bindTexture(cardTexture);
			this.drawTexturedModalRect(cardOffset, cardOffset, 0, 0, cardWidth, cardHeight);
			this.mc.fontRenderer.drawStringWithShadow(cardName, (((cardWidth - cardBorder - cardOffset) / 2) + 1) - (stringWidth / 3), 9, color);
		}
		if(cardTime < 1)
		{
			this.cardTime = this.cardTimeMax;
			arrived = false;
		}
	}
}

[jabelar]

I think you should set the color again right before the font render and change the alpha value passed into the color (the last parameter in the color 4f function)

[Izzy Axel]

Didn't work, still doesn't fade.  I'm guessing I need to make my own FontRenderer and override all the drawString methods to fix this, since glColor4f is set inside the vanilla methods.

[Ernio]

No you don't. I am CERTAIN that fading text using normal fontRenderer is possible as I archieved it accidentally while coding my entity labels. It's matter of some GL state/mode. I'll have look.

[jabelar]

No you don't. I am CERTAIN that fading text using normal fontRenderer is possible as I archieved it accidentally while coding my entity labels. It's matter of some GL state/mode. I'll have look.

 

There may be another way, but if you look at the alpha field in FontRenderer it is set by taking some of the bits from the color passed into the drawString() method. There isn't any other manipulation of the alpha field (which is private and doesn't have a setter method). So I think my suggestion should work -- create a color that includes the alpha.

[Elix_x]

To make transperent things to blend (faiding - what is it?), use GL11.glEnable(GL11.gl_BLEND); and GL11.glDisable(GL11.gl_BLEND);

This willdraw semi transparent things - semi transparent

[Izzy Axel]

Did it manually:

int Blue = 220;
int Green = 220;
int Red = 220;
int Alpha = 255;
int color = Blue + (Green <<  + (Red << 16) + (Alpha << 24);

 

And then to automate:

Alpha = (int)(cardTime * (255.0F/120.0F));