protected static void renderStatusBars(GenuineEntityNpc npc, double d, double d1, double d2, int i) {
    float f = npc.getDistanceToEntity(RenderManager.instance.livingPlayer);
    if (f > i)
        return;
    float f1 = 1.6F * npc.currentSize;
    float f2 = 0.01666667F * f1;
    glPushMatrix();
    glTranslatef((float) d, (float) d1 + (npc.currentSize - 1.0F), (float) d2);
    glNormal3f(0.0F, 1.0F, 0.0F);
    glRotatef(-RenderManager.instance.playerViewY, 0.0F, 1.0F, 0.0F);
    glRotatef(RenderManager.instance.playerViewX, 1.0F, 0.0F, 0.0F);
    glScalef(-f2, -f2, f2);
    glDisable(GL_LIGHTING);
    glEnable(GL_BLEND);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    Tessellator tessellator = Tessellator.instance;
    glDisable(GL_TEXTURE_2D);
    tessellator.startDrawingQuads();
    double d3 = 2D;
    double d4 = 40D;
    float f3 = npc.isCorpse ? npc.corpseTime : npc.health;
    if (f3 < 0.0F)
        f3 = 0.0F;
    float f4 = npc.isCorpse ? 120F : npc.getMaxHealth();
    float f5 = f3 / f4;
    float f6 = 1.0F - f5;
    float f7 = (float) (d4 * (npc.isCorpse ? f5 : f5));
    float f8 = npc.isCorpse ? f5 : f6;
    float f9 = npc.isCorpse ? f6 : f5;
    float f10 = npc.isCorpse ? 0.0F : 0.0F;
    float f11 = npc.currentMana;
    if (f11 < 0.0F)
        f11 = 0.0F;
    float f12 = npc.maxMana;
    float f13 = f11 / f12;
    float f14 = 1.0F - f13;
    float f15 = (float) (d4 * f13);
    float f16 = f14 / 2.0F;
    float f17 = 0.0F;
    float f18 = f13;
    tessellator.setColorRGBA_F(0.0F, 0.0F, 0.0F, 1.0F);
    tessellator.addVertex(-(d4 / 2D) + f7, -(d3 / 2D), 0.0D);
    tessellator.addVertex(-(d4 / 2D) + f7, d3 / 2D, 0.0D);
    tessellator.addVertex(d4 / 2D, d3 / 2D, 0.0D);
    tessellator.addVertex(d4 / 2D, -(d3 / 2D), 0.0D);
    tessellator.setColorRGBA_F(0.0F, 0.0F, 0.0F, 1.0F);
    tessellator.addVertex(-(d4 / 2D) + f15, -(d3 / 2D) + d3, 0.0D);
    tessellator.addVertex(-(d4 / 2D) + f15, d3 / 2D + d3, 0.0D);
    tessellator.addVertex(d4 / 2D, d3 / 2D + d3, 0.0D);
    tessellator.addVertex(d4 / 2D, -(d3 / 2D) + d3, 0.0D);
    tessellator.setColorRGBA_F(f8, f9, f10, 1.0F);
    tessellator.addVertex(-(d4 / 2D), -(d3 / 2D), 0.0D);
    tessellator.addVertex(-(d4 / 2D), d3 / 2D, 0.0D);
    tessellator.addVertex(f7 - d4 / 2D, d3 / 2D, 0.0D);
    tessellator.addVertex(f7 - d4 / 2D, -(d3 / 2D), 0.0D);
    tessellator.setColorRGBA_F(f16, f17, f18, 1.0F);
    tessellator.addVertex(-(d4 / 2D), -(d3 / 2D) + d3, 0.0D);
    tessellator.addVertex(-(d4 / 2D), d3 / 2D + d3, 0.0D);
    tessellator.addVertex(f15 - d4 / 2D, d3 / 2D + d3, 0.0D);
    tessellator.addVertex(f15 - d4 / 2D, -(d3 / 2D) + d3, 0.0D);
    tessellator.draw();
    glEnable(GL_TEXTURE_2D);
    glEnable(GL_LIGHTING);
    glDisable(GL_BLEND);
    glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
    glPopMatrix();
}