public class LivingEventHandler {

    @SubscribeEvent
    public void onPlayersChatOpened(ClientTickEvent event) {
        if (event.phase == Phase.END) {
            if (Minecraft.getMinecraft().theWorld != null) {
                if (Minecraft.getMinecraft().ingameGUI.getChatGUI().getChatOpen()) {
                    // Ton packet à envoyer au serveur !
                }
            }
        }
    }

    @SubscribeEvent
    public void playerRender(RenderPlayerEvent.Pre event) {

        RenderManager renderManager = (RenderManager) ObfuscationReflectionHelper.getPrivateValue(Render.class,
                event.renderer, 1);

        float scaleFactor = 0.15F / 2.0F;
        float yOffsetFactor = -0.05F;

        GL11.glPushMatrix();
        GL11.glTranslatef((float) event.x + 0.0F, (float) event.y - yOffsetFactor, (float) event.z - 2.92F);
        GL11.glNormal3f(0.0F, 1.0F, 0.0F);
        GL11.glRotatef(-event.renderer.renderManager.playerViewY, 0.0F, 1.0F, 0.0F);
        GL11.glScalef(-scaleFactor, -scaleFactor, scaleFactor);
        GL11.glDisable(GL11.GL_LIGHTING);
        GL11.glEnable(GL11.GL_BLEND);
        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
        Minecraft.getMinecraft().renderEngine.bindTexture(
                new ResourceLocation("Heimnormod", "/main/resources/assets/heimnormod/textures/items/bulle.png"));

        Tessellator tessellator = Tessellator.instance;
        tessellator.startDrawingQuads();
        tessellator.addVertexWithUV(-16 + 0, -56 + 32, 0.0D, 0.8F, 0.8F);
        tessellator.addVertexWithUV(-16 + 32, -56 + 32, 0.0D, 0.8F, 0.0F);
        tessellator.addVertexWithUV(-16 + 32, -56 + 0, 0.0D, 0.0F, 0.0F);
        tessellator.addVertexWithUV(-16 + 0, -56 + 0, 0.0D, 0.0F, 0.8F);
        tessellator.draw();
        GL11.glPopMatrix();
    }

}