Make custom tnt

Please check https://www.youtube.com/watch?v=C3Czx099ghg&list=PLAeL-oIFIEngE6jRgFYeFMfuj8WQsO3Ei&index=55&t=0s

You can make a animated gui, but it would require custom coding and I'm afraid I haven't played around with it enough to be able to show you.

If it helps though, in the custom code, the section that contains all the images in your gui has an address for each image, so it knows which image to use. These addresses can be replaced by a string variable that you can set equal to an address. If that variable is changed depending on how much fuel is in the furnace, the image will change with it.

If you make a GUI and put put an image in it, you can go into the GUI's code and see something like this (the bold parts are what I added and changed):

@Override
        protected void drawGuiContainerBackgroundLayer(float par1, int par2, int par3) {
            GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
            Minecraft.getInstance().getTextureManager().bindTexture(texture);
            String myOverlayVariable = "my_mod:textures/randomimage2.png"; // Here I created a String variable equal to the image address I want to be shown in the overlay.
            int k = (this.width - this.xSize) / 2;
            int l = (this.height - this.ySize) / 2;
            this.blit(k, l, 0, 0, this.xSize, this.ySize);
            Minecraft.getInstance().getTextureManager().bindTexture(new ResourceLocation("my_mod:textures/randomimage.png"));
            this.blit(this.guiLeft + 20, this.guiTop + 120, 0, 0, 256, 256);
            Minecraft.getInstance().getTextureManager().bindTexture(new ResourceLocation(myOverlayVariable)); // Here I changed the image's address to the variable name.
            this.blit(this.guiLeft + 50, this.guiTop + 50, 0, 0, 256, 256);
        }

This code will display both the image "my_mod:textures/randomimage.png" and the image "my_mod:textures/randomimage2.png" in the GUI because it replaces the variable "myOverlayVariable" with the string the variable is equal to ("my_mod:textures/randomimage2.png").

By changing the address in this variable you can have the GUI show a different image at different times. I haven't experimented any farther than this, so you will have to do some more research to make the variable change its value to a new address depending on how much fuel is left in the furnace.

You're welcome!

I'm not sure, I haven't tried anything like that before, sorry.