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[1.7.10] How to change textures of a custom rendered model?


nivla2525

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I have a custom rendered block using a techne model, I'm trying to make a light that toggles textures and light values on right click. The way I have it set up is I have 2 blocks with a boolean parameter and points to a class. That class sets it's light value to 1.0F if true, 0F is false. When you right click the block runs world.setBlock and sets it to the other block. All the code is working fine except I tried many time and failed to get the texture to change when it changes the block. I am using one render class, I tried to use an if statement for determining which block it is and thus sending which resource location to the bindtexture method but it seems to only render the texturemap of the path I initialized it with (you can't leave the resource location blank otherwise it crashes).

 

Any help on what I can do?

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Code would be helpful...

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mah twitter

This thread makes me sad because people just post copy-paste-ready code when it's obvious that the OP has little to no programming experience. This is not how learning works.

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I should have fixed the problem I had earlier with this code

 

TESR class

public class RenderLight extends TileEntitySpecialRenderer
{
private static Map<Integer, ResourceLocation> textures = new HashMap<Integer, ResourceLocation>();
    private final ModelLight model;

    static
    {
        //metadata, texture location
        textures.put(0, new ResourceLocation(SMOMAIN.MODID + ":" + "textures/model/light0.png"));
        textures.put(1, new ResourceLocation(SMOMAIN.MODID + ":" + "textures/model/light1.png"));
        for(int i = 0; i < 2; i++)
        {
            textures.put(i, new ResourceLocation(SMOMAIN.MODID + ":" + "textures/model/light" + i + ".png"));
        }
    }

    public RenderLight()
    {
        this.model = new ModelLight();
    }

    public void bindTexture(TileEntity tile)
    {
        // Gets the metadata from the tile
        int metadata = tile.getWorldObj().getBlockMetadata(tile.xCoord, tile.yCoord, tile.zCoord);
        if(textures.containsKey(metadata))
        {
            Minecraft.getMinecraft().renderEngine.bindTexture(textures.get(metadata));
        }
        else
        {
            // If not, it will crash so that you know that you're missing a texture
            throw new IllegalArgumentException(metadata + " doesn't have a valid texture!");
        }
    }

    @Override
    public void renderTileEntityAt(TileEntity tileentity, double x, double y, double z, float f)
    {
        GL11.glPushMatrix();
        GL11.glTranslatef((float)x +0.5F, (float)y + 1.5F, (float)z + 0.5F);
        if(tileentity != null) 
        	this.bindTexture(tileentity);
        GL11.glPushMatrix();
        GL11.glRotatef(180, 0F, 0F, 1F);
        this.model.render((Entity)null, 0.0F, 0.0F, -0.1F, 0.0F, 0.0F, 0.0625F);
        GL11.glPopMatrix();
        GL11.glPopMatrix();
    }
}

 

but now I have problems with my ItemRender class

Public class ItemRenderLight implements IItemRenderer
{
        TileEntitySpecialRenderer render;
private TileEntity entity;

public ItemRenderLight(TileEntitySpecialRenderer render, TileEntity entity)
{
	this.entity = entity;
	this.render = render;
}
@Override
public boolean handleRenderType(ItemStack item, ItemRenderType type) {

	return true;
}

@Override
public boolean shouldUseRenderHelper(ItemRenderType type, ItemStack item,
		ItemRendererHelper helper) 
{	
	return true;
}

@Override
public void renderItem(ItemRenderType type, ItemStack item, Object... data) {
	if(type == IItemRenderer.ItemRenderType.ENTITY)
	GL11.glTranslatef(-0.5F, 0F, -0.5F);
	this.render.renderTileEntityAt(this.entity,0.0D, 0.0D, 0.0D, 0.0F);
}
}

 

I even tried using another way for rendering it

public class ItemRenderLight implements IItemRenderer
{
private ModelLight model;
public void RenderLight()
{
	model = new ModelLight();
}

public boolean handleRenderType(ItemStack item, ItemRenderType type)
{
	return true;
}
@Override
public boolean shouldUseRenderHelper(ItemRenderType type, ItemStack item, ItemRendererHelper helper)
{
	return true;
}
@Override
public void renderItem(ItemRenderType type, ItemStack item, Object... data)
{
	GL11.glPushMatrix();
	GL11.glScalef(-1F, -1F, 1F);
	switch (type)
	{
	case INVENTORY:
		GL11.glTranslatef(0, 0.12F, 0);
		break;
	case EQUIPPED:
		GL11.glTranslatef(-0.8F, -0.2F, 0.7F);
		break;
	case EQUIPPED_FIRST_PERSON:
		GL11.glTranslatef(0F, -0.7F, 0.7F);
	default:
	}
	Minecraft.getMinecraft().renderEngine.bindTexture(new ResourceLocation("textures/model/light0.png"));
	model.render(null, 0F, 0F, -0.1F, 0F, 0F, 0.0625F);
	GL11.glPopMatrix();
}
}

 

In my client proxy I have this which should be right: MinecraftForgeClient.registerItemRenderer(Item.getItemFromBlock(SMOMAIN.light), new ItemRenderLight());

 

The game loads up fine but crashes when I load  a world and see the item in the inventory, the crash log gave me this....

 

Caused by: java.lang.NullPointerException

at com.shadowbyte.SwordMineOnline.ItemRenderLight.renderItem(ItemRenderLight.java:45) ~[itemRenderLight.class:?]

 

Any ideas?

 

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