Method drawGradientRect

Minecraft-Utils/1.13/src/GuiHandle.java:211–245

(double left, double top, double right, double bottom, int startColor, int endColor, boolean vertical)

	}

	public static void drawGradientRect(double left, double top, double right, double bottom, int startColor, int endColor, boolean vertical) {
		float a1 = (float) (startColor >> 24 & 255) / 255.0F;
		float r1 = (float) (startColor >> 16 & 255) / 255.0F;
		float g1 = (float) (startColor >> 8 & 255) / 255.0F;
		float b1 = (float) (startColor & 255) / 255.0F;
		float a2 = (float) (endColor >> 24 & 255) / 255.0F;
		float r2 = (float) (endColor >> 16 & 255) / 255.0F;
		float g2 = (float) (endColor >> 8 & 255) / 255.0F;
		float b2 = (float) (endColor & 255) / 255.0F;

		ctp.z();
		GLUtil.enableBlend();
		GLUtil.disableAlpha();
		ctp.a(ctp.r.l, ctp.l.j, ctp.r.e, ctp.l.n);
		ctp.j(7425);
		cub tesselator = cub.a();
		ctf vertex = tesselator.c();
		vertex.a(7, ddk.m);
		if (!vertical) {
			vertex.b(right, top, 1.0).a(r1, g1, b1, a1).d();
			vertex.b(left, top, 1.0).a(r1, g1, b1, a1).d();
			vertex.b(left, bottom, 1.0).a(r2, g2, b2, a2).d();
			vertex.b(right, bottom, 1.0).a(r2, g2, b2, a2).d();
		} else {
			vertex.b(right, top, 1.0).a(r2, g2, b2, a2).d();
			vertex.b(left, top, 1.0).a(r1, g1, b1, a1).d();
			vertex.b(left, bottom, 1.0).a(r1, g1, b1, a1).d();
			vertex.b(right, bottom, 1.0).a(r2, g2, b2, a2).d();
		}
		tesselator.b();
		ctp.j(7424);
		GLUtil.disableBlend();
		ctp.e();
		ctp.y();
	}

	public Gui getChild() {
		return child;