RerturnZero

I intend to generate a hollow square with dimensions of 2x2 at the player's feet, providing a visual range indicator for the player. However, it is not working in the game. The code is shown below. private Tesselator tesselator = new Tesselator(); private boolean isBuildLine = true; @SubscribeEvent public void drawRectangle(TickEvent.PlayerTickEvent event) { LocalPlayer player = Minecraft.getInstance().player; LevelRenderer levelRenderer = Minecraft.getInstance().levelRenderer; if (player != null && isBuildLine) { isBuildLine = false; BufferBuilder builder = tesselator.getBuilder(); builder.begin(VertexFormat.Mode.LINES, DefaultVertexFormat.POSITION_COLOR); // Calculated position double playerX = player.getX(); double playerY = player.getY(); double playerZ = player.getZ(); double footY = playerY - player.getEyeHeight(); builder.vertex(playerX - 1, footY, playerZ - 1).color(216, 59, 1, 0).endVertex(); builder.vertex(playerX + 1, footY, playerZ - 1).color(216, 59, 1, 0).endVertex(); builder.vertex(playerX + 1, footY, playerZ - 1).color(216, 59, 1, 0).endVertex(); builder.vertex(playerX + 1, footY, playerZ + 1).color(216, 59, 1, 0).endVertex(); builder.vertex(playerX + 1, footY, playerZ + 1).color(216, 59, 1, 0).endVertex(); builder.vertex(playerX - 1, footY, playerZ + 1).color(216, 59, 1, 0).endVertex(); builder.vertex(playerX - 1, footY, playerZ + 1).color(216, 59, 1, 0).endVertex(); builder.vertex(playerX - 1, footY, playerZ - 1).color(216, 59, 1, 0).endVertex(); tesselator.end(); isBuildLine = true; } }