Fix: Doors Not Rendering Due To Missing Position Field

Dec 21, 2025 by Alex Johnson 55 views

Are you experiencing a mysterious phenomenon in your dungeons where doors simply refuse to appear? You're not alone! This article dives deep into a critical bug, an L1 Bug where the DoorInfo is missing its essential Position field, leading to doors not rendering at all. We’ll break down the problem, pinpoint the root cause, understand the impact on gameplay, and outline the necessary fixes to get those doors back where they belong. This isn't just about a visual glitch; it affects player interaction and the overall dungeon-crawling experience. Let's get those doors rendering and make your dungeons complete!

The Frustrating Problem: Doors Vanish into Thin Air

The problem at hand is quite straightforward yet incredibly impactful: doors are not visible in the dungeon environment. Imagine navigating through a dark, mysterious dungeon, ready to face the next challenge, only to find that the doorways you expect to see are conspicuously absent. This isn't a design choice; it's a bug. Specifically, the issue stems from the API's DoorInfo struct. While the game's protocol definition (encounter.proto) clearly expects a Position field for each door to know where it should be located, the DoorInfo struct within the API itself is missing this crucial piece of information. This disconnect between what the game expects and what the API provides is the direct cause of the rendering failure. Without knowing a door's position, the game client has no data to draw it on the screen, leaving players to wander through seemingly solid walls or dead ends where a passage should be. This can lead to confusion, frustration, and an inability to progress through the dungeon as intended. The core of the issue lies in a missing data point, a seemingly small detail that has a significant ripple effect on the player's visual experience and the overall functionality of the dungeon.

Unraveling the Root Cause: A Tale of Two Definitions

To truly fix the vanishing door issue, we must first understand its root cause. The problem boils down to a discrepancy between two critical components: the protocol buffer definition and the actual API struct implementation. Let's break it down. The encounter.proto file, which defines the structure of data exchanged between different parts of the system, explicitly includes a position field within its DoorInfo definition. This means that any system expecting DoorInfo data, particularly the game client rendering the dungeon, is set up to receive and use this position information. However, when we look at the API's implementation, specifically in the service.go file on line 191, we find that the DoorInfo struct defined there lacks this position field entirely. This is a direct contradiction. Furthermore, the process responsible for populating this DoorInfo struct, the getDoorInfoForRoom function found in orchestrator.go around line 826, never attempts to set the position. It simply doesn't have anywhere to put it because the field isn't there in the first place. This chain of events – the protocol demanding a position, the API struct omitting it, and the population function not even trying to fill it – creates a perfect storm for the rendering bug. The API is essentially sending incomplete information, leaving the game client in the dark about where to place the doors, hence why they aren't visible.

The Unseen Impact: When Doors Disappear

The impact of this DoorInfo bug is significant and directly affects the player's experience in the dungeon. When doors are not rendered, players are immediately disoriented. They cannot see the intended pathways, making navigation within the dungeon a frustrating guesswork game. This lack of visual guidance can halt progress, forcing players to backtrack or try to guess where a door might be, which is highly undesirable in a game that should feel intuitive and engaging. Beyond simple navigation, doors often serve as more than just passage points; they can be integral to puzzle mechanics, quest progression, or even act as barriers that players must overcome. If these doors are invisible, any associated mechanics will fail. A player might not realize they need to find a key for an invisible door, or a quest objective requiring them to pass through a specific exit might become impossible to complete. Interacting with these non-existent doors is, of course, out of the question. Players cannot open them, close them, or trigger any associated events. This breaks the immersion and can make the game feel broken or incomplete. For a game reliant on exploration and interaction within its environments, rendering issues like this are critical. The visual cues provided by doors are fundamental to the player's understanding of the game world, and their absence creates a barrier to enjoyment and progression. It’s a core gameplay element that is fundamentally broken, turning potentially exciting dungeon crawls into confusing and unrewarding experiences.

The Necessary Fix: Restoring the Doors

To resolve the issue of invisible doors, a multi-step fix is required, addressing the core discrepancies identified. The first and most crucial step is to add the Position field back to the API's DoorInfo struct. This means modifying the DoorInfo definition within the service.go file (specifically around line 191) to include the Position field, mirroring the definition found in encounter.proto. Once the field exists in the API struct, the next essential step is to update the getDoorInfoForRoom function in orchestrator.go (around line 816). This function needs to be modified to correctly extract the door positions from the available connection data. It’s likely that the information is present elsewhere in the room data but was previously ignored or not mapped correctly. By ensuring this function populates the newly added Position field, we provide the necessary data. Finally, it’s vital to ensure the handler maps the position to the proto response. This involves verifying that when the API's data is translated into the format expected by the protocol buffer for the response to the game client, the extracted Position data is correctly included. This might involve adjustments in the handler logic that prepares the data before it’s sent out. Completing these three steps will ensure that the DoorInfo struct contains all the necessary information, that this information is correctly populated by the API, and that it is accurately transmitted to the game client. This will allow the client to render the doors correctly, restoring full functionality and visual integrity to the dungeon environment.

Key Files for the Fix

When tackling the vanishing doors bug, focusing on the correct files is paramount. The DoorInfo struct itself, which is the heart of the data structure causing the problem, can be found in internal/orchestrators/encounter/service.go, specifically around line 191. This is where the Position field is missing and needs to be added. The logic responsible for gathering door information, the getDoorInfoForRoom function, resides in internal/orchestrators/encounter/orchestrator.go, beginning around line 816. This is where the function needs to be updated to extract and set the Position data. By carefully examining and modifying these two key files, we can directly address the root cause of the bug and ensure that door positions are correctly handled throughout the API. This targeted approach minimizes the risk of introducing new issues and speeds up the resolution process, getting players back to enjoying their dungeons without invisible obstacles.

Labels for Tracking

To effectively manage and track this issue within the development workflow, it has been assigned specific labels: bug and L1-feature. The bug label clearly indicates that this is a defect that needs to be fixed. The L1-feature label suggests that this bug pertains to a core or high-priority feature, implying that its resolution is critical for the proper functioning and user experience of the game. These labels help development teams prioritize their work, understand the scope and impact of the issue, and ensure that it receives the attention it deserves. Properly labeling bugs like this is a fundamental part of efficient software development and helps maintain the quality and stability of the application.