GuiTextureResource.java

package net.mcft.copy.backpacks.client;

import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.VertexBuffer;
import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
import net.minecraft.util.ResourceLocation;

import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import net.mcft.copy.backpacks.WearableBackpacks;

@SideOnly(Side.CLIENT)
public class GuiTextureResource extends ResourceLocation {
	
	public final int defaultWidth;
	public final int defaultHeight;
	
	public GuiTextureResource(String location, int defaultWidth, int defaultHeight) {
		super(WearableBackpacks.MOD_ID, "textures/gui/" + location + ".png");
		this.defaultWidth = defaultWidth;
		this.defaultHeight = defaultHeight;
	}
	
	public void bind() {
		Minecraft.getMinecraft().getTextureManager().bindTexture(this);
	}
	
	/** Draws part of the texture to the screen. */
	public void drawQuad(int x, int y, int u, int v, int w, int h, float zLevel) {
		float scaleX = 1.0F / defaultWidth;
		float scaleY = 1.0F / defaultHeight;
		Tessellator tess = Tessellator.getInstance();
		VertexBuffer vb = tess.getBuffer();
		vb.begin(7, DefaultVertexFormats.POSITION_TEX);
		vb.pos(x + 0, y + h, zLevel).tex((u + 0) * scaleX, (v + h) * scaleY).endVertex();
		vb.pos(x + w, y + h, zLevel).tex((u + w) * scaleX, (v + h) * scaleY).endVertex();
		vb.pos(x + w, y + 0, zLevel).tex((u + w) * scaleX, (v + 0) * scaleY).endVertex();
		vb.pos(x + 0, y + 0, zLevel).tex((u + 0) * scaleX, (v + 0) * scaleY).endVertex();
		tess.draw();
	}
	
	/** Draws part of the texture to the screen. */
	public void drawQuad(int x, int y, int u, int v, int w, int h) {
		drawQuad(x, y, u, v, w, h, 0);
	}
	
}