ManaHUD.java

public class ManaHUD extends Gui
{
	final ResourceLocation manaHUD = new ResourceLocation(AAReference.MODID, "textures/gui/hud/manaHUD.png");
	final ResourceLocation manaHUDUnderlay = new ResourceLocation(AAReference.MODID, "textures/gui/hud/manaHUDUnderlays.png");
	final Minecraft mc = Minecraft.getMinecraft();
	final Tessellator tess = Tessellator.instance;
	final float adj = 0.00390625F;

	@SubscribeEvent()
	public void onRender(RenderGameOverlayEvent event)
	{
		if(!event.isCancelable() && event.type == RenderGameOverlayEvent.ElementType.HOTBAR)
		{
			EntityPlayer player = Minecraft.getMinecraft().thePlayer;
			AAExtendedPlayer props = AAExtPlayerHelper.getIEEP(player);
			if(props.hasLearnedAboutmana())
			{
				double scale = 0.6;
				switch(Minecraft.getMinecraft().gameSettings.guiScale)
				{
					case 0:
						scale = 0.5;
						break;

					case 1:
						scale = 1.6;
						break;

					case 2:
						scale = 0.9;
						break;

					case 3:
						scale = 0.8;
						break;

					default:
						break;
				}

				int xOffset = 4, yOffset = 4, border = 4, iconWidth = 32;

				//Underlays
				GL11.glPushMatrix();
				GL11.glDisable(GL11.GL_LIGHTING);
				GL11.glEnable(GL11.GL_BLEND);
				GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
				GL11.glScaled(scale, scale, scale);
				GL11.glColor4d(1.0, 1.0, 1.0, 0.8);
				this.mc.renderEngine.bindTexture(this.manaHUDUnderlay);

				//System.out.print("W: " + props.getWhiteMana() + " U: " + props.getBlueMana() + " B: " + props.getBlackMana() + " G: " + props.getGreenMana() + " R: " + props.getRedMana() + "\r");

				//White
				AAVector2 lerpWVertsUL = AAVector2.lerpVertsAndUVs(new AAVector2(xOffset, yOffset), new AAVector2(xOffset, yOffset + iconWidth), ((float)props.getWhiteMana() / props.getMaxManaW()));
				AAVector2 lerpWVertsUR = AAVector2.lerpVertsAndUVs(new AAVector2(xOffset + iconWidth, yOffset), new AAVector2(xOffset + iconWidth, yOffset + iconWidth), ((float)props.getWhiteMana() / props.getMaxManaW()));
				AAVector2 lerpWUVsUL = AAVector2.lerpVertsAndUVs(new AAVector2(0, 0), new AAVector2(0, 32 * this.adj), ((float)props.getWhiteMana() / props.getMaxManaW()));
				AAVector2 lerpWUVsUR = AAVector2.lerpVertsAndUVs(new AAVector2(32 * this.adj, 0), new AAVector2(32 * this.adj, 32 * this.adj), ((float)props.getWhiteMana() / props.getMaxManaW()));

				//Blue
				AAVector2 lerpUVertsUL = AAVector2.lerpVertsAndUVs(new AAVector2(xOffset, yOffset + iconWidth + border), new AAVector2(xOffset, yOffset + (iconWidth * 2) + border), ((float)props.getBlueMana() / props.getMaxManaU()));
				AAVector2 lerpUVertsUR = AAVector2.lerpVertsAndUVs(new AAVector2(xOffset + iconWidth, yOffset + iconWidth + border), new AAVector2(xOffset + iconWidth, yOffset + (iconWidth * 2) + border), ((float)props.getBlueMana() / props.getMaxManaU()));
				AAVector2 lerpUUVsUL = AAVector2.lerpVertsAndUVs(new AAVector2(32 * this.adj, 0), new AAVector2(32 * this.adj, 32 * this.adj), ((float)props.getBlueMana() / props.getMaxManaU()));
				AAVector2 lerpUUVsUR = AAVector2.lerpVertsAndUVs(new AAVector2(64 * this.adj, 0), new AAVector2(64 * this.adj, 32 * this.adj), ((float)props.getBlueMana() / props.getMaxManaU()));

				//Black
				AAVector2 lerpBVertsUL = AAVector2.lerpVertsAndUVs(new AAVector2(xOffset, yOffset + (iconWidth * 2) + (border * 2)), new AAVector2(xOffset, yOffset + (iconWidth * 3) + (border * 2)), ((float)props.getBlackMana() / props.getMaxManaB()));
				AAVector2 lerpBVertsUR = AAVector2.lerpVertsAndUVs(new AAVector2(xOffset + iconWidth, yOffset + (iconWidth * 2) + (border * 2)), new AAVector2(xOffset + iconWidth, yOffset + (iconWidth * 3) + (border * 2)), ((float)props.getBlackMana() / props.getMaxManaB()));
				AAVector2 lerpBUVsUL = AAVector2.lerpVertsAndUVs(new AAVector2(64 * this.adj, 0), new AAVector2(64 * this.adj, 32 * this.adj), ((float)props.getBlackMana() / props.getMaxManaB()));
				AAVector2 lerpBUVsUR = AAVector2.lerpVertsAndUVs(new AAVector2(96 * this.adj, 0), new AAVector2(96 * this.adj, 32 * this.adj), ((float)props.getBlackMana() / props.getMaxManaB()));

				//Green
				AAVector2 lerpGVertsUL = AAVector2.lerpVertsAndUVs(new AAVector2(xOffset, yOffset + (iconWidth * 3) + (border * 3)), new AAVector2(xOffset, yOffset + (iconWidth * 4) + (border * 3)), ((float)props.getGreenMana() / props.getMaxManaG()));
				AAVector2 lerpGVertsUR = AAVector2.lerpVertsAndUVs(new AAVector2(xOffset + iconWidth, yOffset + (iconWidth * 3) + (border * 3)), new AAVector2(xOffset + iconWidth, yOffset + (iconWidth * 4) + (border * 3)), ((float)props.getGreenMana() / props.getMaxManaG()));
				AAVector2 lerpGUVsUL = AAVector2.lerpVertsAndUVs(new AAVector2(96 * this.adj, 0), new AAVector2(96 * this.adj, 32 * this.adj), ((float)props.getGreenMana() / props.getMaxManaG()));
				AAVector2 lerpGUVsUR = AAVector2.lerpVertsAndUVs(new AAVector2(128 * this.adj, 0), new AAVector2(128 * this.adj, 32 * this.adj), ((float)props.getGreenMana() / props.getMaxManaG()));

				//Red
				AAVector2 lerpRVertsUL = AAVector2.lerpVertsAndUVs(new AAVector2(xOffset, yOffset + (iconWidth * 4) + (border * 4)), new AAVector2(xOffset, yOffset + (iconWidth * 5) + (border * 4)), ((float)props.getRedMana() / props.getMaxManaR()));
				AAVector2 lerpRVertsUR = AAVector2.lerpVertsAndUVs(new AAVector2(xOffset + iconWidth, yOffset + (iconWidth * 4) + (border * 4)), new AAVector2(xOffset + iconWidth, yOffset + (iconWidth * 5) + (border * 4)), ((float)props.getRedMana() / props.getMaxManaR()));
				AAVector2 lerpRUVsUL = AAVector2.lerpVertsAndUVs(new AAVector2(128 * this.adj, 0), new AAVector2(128 * this.adj, 32 * this.adj), ((float)props.getRedMana() / props.getMaxManaR()));
				AAVector2 lerpRUVsUR = AAVector2.lerpVertsAndUVs(new AAVector2(160 * this.adj, 0), new AAVector2(160 * this.adj, 32 * this.adj), ((float)props.getRedMana() / props.getMaxManaR()));

				//White
				this.tess.startDrawingQuads();
				this.tess.addVertexWithUV(xOffset, yOffset + iconWidth, this.zLevel, 0 * this.adj, 32 * this.adj);
				this.tess.addVertexWithUV(xOffset + iconWidth, yOffset + iconWidth, this.zLevel, 32 * this.adj, 32 * this.adj);
				this.tess.addVertexWithUV(lerpWVertsUR.x, lerpWVertsUR.y, this.zLevel, lerpWUVsUR.x, lerpWUVsUR.y);
				this.tess.addVertexWithUV(lerpWVertsUL.x, lerpWVertsUL.y, this.zLevel, lerpWUVsUL.x, lerpWUVsUL.y);
				this.tess.draw();

				//Blue
				this.tess.startDrawingQuads();
				this.tess.addVertexWithUV(xOffset, yOffset + border + (iconWidth * 2), this.zLevel, 32 * adj, 32 * adj);
				this.tess.addVertexWithUV(xOffset + iconWidth, yOffset + border + (iconWidth * 2), this.zLevel, 64 * adj, 32 * adj);
				this.tess.addVertexWithUV(lerpUVertsUR.x, lerpUVertsUR.y, this.zLevel, lerpUUVsUR.x, lerpUUVsUR.y);
				this.tess.addVertexWithUV(lerpUVertsUL.x, lerpUVertsUL.y, this.zLevel, lerpUUVsUL.x, lerpUUVsUL.y);
				this.tess.draw();

				//Black
				this.tess.startDrawingQuads();
				this.tess.addVertexWithUV(xOffset, yOffset + (border * 2) + (iconWidth * 3), this.zLevel, 64 * adj, 32 * adj);
				this.tess.addVertexWithUV(xOffset + iconWidth, yOffset + (border * 2) + (iconWidth * 3), this.zLevel, 96 * adj, 32 * adj);
				this.tess.addVertexWithUV(lerpBVertsUR.x, lerpBVertsUR.y, this.zLevel, lerpBUVsUR.x, lerpBUVsUR.y);
				this.tess.addVertexWithUV(lerpBVertsUL.x, lerpBVertsUL.y, this.zLevel, lerpBUVsUL.x, lerpBUVsUL.y);
				this.tess.draw();

				//Green
				this.tess.startDrawingQuads();
				this.tess.addVertexWithUV(xOffset, yOffset + (border * 3) + (iconWidth * 4), this.zLevel, 96 * adj, 32 * adj);
				this.tess.addVertexWithUV(xOffset + iconWidth, yOffset + (border * 3) + (iconWidth * 4), this.zLevel, 128 * adj, 32 * adj);
				this.tess.addVertexWithUV(lerpGVertsUR.x, lerpGVertsUR.y, this.zLevel, lerpGUVsUR.x, lerpGUVsUR.y);
				this.tess.addVertexWithUV(lerpGVertsUL.x, lerpGVertsUL.y, this.zLevel, lerpGUVsUL.x, lerpGUVsUL.y);
				this.tess.draw();

				//Red
				this.tess.startDrawingQuads();
				this.tess.addVertexWithUV(xOffset, yOffset + (border * 4) + (iconWidth * 5), this.zLevel, 128 * adj, 32 * adj);
				this.tess.addVertexWithUV(xOffset + iconWidth, yOffset + (border * 4) + (iconWidth * 5), this.zLevel, 160 * adj, 32 * adj);
				this.tess.addVertexWithUV(lerpRVertsUR.x, lerpRVertsUR.y, this.zLevel, lerpRUVsUR.x, lerpRUVsUR.y);
				this.tess.addVertexWithUV(lerpRVertsUL.x, lerpRVertsUL.y, this.zLevel, lerpRUVsUL.x, lerpRUVsUL.y);
				this.tess.draw();

				GL11.glPopMatrix();

				//Icons
				GL11.glPushMatrix();
				GL11.glDisable(GL11.GL_LIGHTING);
				GL11.glScaled(scale, scale, scale);
				GL11.glColor4d(1.0, 1.0, 1.0, 1.0);
				this.mc.renderEngine.bindTexture(this.manaHUD);
				//White
				this.drawTexturedModalRect(xOffset, yOffset, 0, 0, iconWidth, iconWidth);

				//Blue
				this.drawTexturedModalRect(xOffset, yOffset + iconWidth + border, 32, 0, iconWidth, iconWidth);

				//Black
				this.drawTexturedModalRect(xOffset, yOffset + (iconWidth * 2) + (border * 2), 64, 0, iconWidth, iconWidth);

				//Green
				this.drawTexturedModalRect(xOffset, yOffset + (iconWidth * 3) + (border * 3), 96, 0, iconWidth, iconWidth);

				//Red
				this.drawTexturedModalRect(xOffset, yOffset + (iconWidth * 4) + (border * 4), 128, 0, iconWidth, iconWidth);
				GL11.glPopMatrix();
			}
		}
	}
}