Paradropping Outside The Map A Critical Bug Report Discussion In Cmss13

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Introduction

This document details a critical bug report concerning an issue where players can fall off the map during paradrop maneuvers in the game cmss13. The bug report, initially raised in the cmss13-devs discussion category, highlights the circumstances under which this occurs, the expected behavior, and steps to reproduce the issue. This comprehensive analysis aims to provide a clear understanding of the bug, its impact, and potential solutions. We will delve into the specifics of the bug, examine relevant testmerges, and discuss the implications for gameplay.

At the heart of this issue is the integrity of the game world, and the ability for players to reliably interact with it. When players encounter unexpected behavior, such as falling off the map, it can lead to frustration and a diminished sense of immersion. Therefore, addressing this bug is crucial for maintaining the quality of the game and ensuring a positive player experience.

Testmerges

Several testmerges are related to this bug report, each addressing different aspects of the game's mechanics and world generation. Examining these merges can provide valuable insights into the potential causes of the bug and guide the development of a fix. Here's a breakdown of the relevant testmerges:

  • #9427: 'external authentication system' by hry-gh at commit 00232abe2d: While primarily focused on the external authentication system, changes in authentication can sometimes indirectly affect other game systems. Although unlikely, it's worth considering whether this merge introduced any unforeseen side effects related to player positioning or map boundaries.
  • #9590: 'Multi Z Almayer [MDB IGNORE]' by spartanbobby at commit 9828be53ea: This merge introduces multi-z level support for the Almayer map. Multi-z level functionality can be complex, and any errors in its implementation could potentially lead to issues with player positioning and map boundaries. This merge is particularly relevant as it directly deals with the game's spatial structure.
  • #9872: ' Multiz Bigred [MDB IGNORE]' by spartanbobby at commit 511a62e95b: Similar to #9590, this merge extends multi-z level support to the Bigred map. The same concerns regarding multi-z level functionality apply here as well. The introduction of multi-z levels can sometimes introduce edge cases or unexpected interactions with existing game mechanics, making it crucial to examine this merge in the context of the bug report.
  • #8878: 'Whiskey Outpost Xenofication' by Unknownity at commit f351a4aded: This merge introduces the Whiskey Outpost Xenofication event, which might involve changes to the map layout or game mechanics that could potentially interact with the paradrop system. While the primary focus is on the Xenofication event, it's essential to consider the possibility of unintended consequences related to player movement and map boundaries.
  • #9894: 'Multiz indicator' by Detective-Google at commit d88517e19b: This merge adds a multiz indicator, which suggests that the game is actively being developed with multi-z levels in mind. This further reinforces the importance of scrutinizing multi-z level related merges for potential issues.
  • #9175: 'Multiz climbing changes' by cuberound at commit d4bfe25e45: This merge focuses on climbing mechanics within multi-z levels. While the bug report doesn't explicitly mention climbing, it's possible that changes to climbing mechanics could indirectly affect player movement near map edges.
  • #9405: '[EVENT] Pathogen Confluence' by realforest2001 at commit 0ac7f1bf3a: This merge introduces the Pathogen Confluence event, which, like the Xenofication event, might involve changes to the map or game mechanics that could interact with the paradrop system.
  • #9978: 'Xeno Time Checks' by realforest2001 at commit f2cb166488: This merge introduces time checks related to Xeno events. While seemingly unrelated, it's crucial to consider any changes that might affect the game's overall timing or physics calculations, as these could potentially impact player movement and positioning.
  • #9998: 'Survivor Origin Hotfix and new Origins' by Unknownity at commit 595f0670fd: This merge introduces hotfixes and new origins for survivors. While focused on character origins, it's worth considering whether any changes to character initialization or spawning could indirectly affect player positioning in relation to the map.

Round ID: 28895

The specific round ID associated with the bug report is 28895. This information is crucial for developers as it allows them to examine the exact game state and conditions under which the bug occurred. By analyzing the round data, developers can gain a deeper understanding of the events leading up to the bug and potentially identify the root cause more effectively.

Bug Description: Falling into Space

The core issue reported is that players paradropping near the edge of the map have a chance of falling into space. This critical bug directly impacts gameplay by preventing players from reliably using the paradrop mechanic. The current behavior deviates significantly from the intended game design, where players should land safely on the map after deploying their parachute. Falling into space not only disrupts the player's experience but can also lead to loss of equipment and progress.

This bug highlights a potential flaw in the map boundary detection or the parachuting landing logic. The game should have robust mechanisms in place to ensure that players are contained within the playable area, regardless of their actions. The fact that players can fall into space suggests a failure in these mechanisms, indicating a need for further investigation and refinement.

Expected Behavior: Landing on the Map

The expected behavior is that players using a parachute should land safely within the boundaries of the game map. This is a fundamental aspect of the game's design, ensuring that players can navigate the environment and interact with the world as intended. The game's physics engine and collision detection systems should work in concert to prevent players from falling outside the playable area.

When a player deploys a parachute, the game should calculate a safe landing zone within the map boundaries. This calculation should take into account factors such as the player's current position, velocity, and the terrain below. The player should then be smoothly guided towards this landing zone, ensuring a safe and predictable outcome. The current bug, where players fall into space, represents a clear deviation from this expected behavior and requires immediate attention.

Reproduction Steps: How to Trigger the Bug

To reproduce the bug, follow these steps:

  1. Obtain a para laser and position yourself near the edge of the map.
  2. Equip a parachute.
  3. Jump out of the para laser.
  4. As you land, you may randomly fall into space. Due to the random nature of the bug, it may be necessary to repeat this process multiple times (10+ attempts) to reliably trigger the issue.

This step-by-step guide provides a clear and concise method for developers and testers to reproduce the bug. The fact that the bug is triggered near the edge of the map suggests that boundary collision detection is a key area to investigate. The need for multiple attempts to reproduce the bug indicates that it may be related to specific angles or positions near the map edge, further highlighting the complexity of the issue.

Attached Logs: N/A

The bug report indicates that no logs were attached. While logs can provide valuable information about the game state at the time the bug occurred, the absence of logs does not diminish the importance of the bug report. Developers can still investigate the issue using the reproduction steps and other available information. In future bug reports, it is highly recommended to include logs whenever possible, as they can significantly aid in the debugging process.

Additional Details

  • Author: SeedyJatz
  • Admin: SeedyJatz
  • Note: None

The additional details provide context about the reporter and any relevant notes. In this case, the bug was reported by SeedyJatz, who is also an administrator. The absence of notes suggests that there are no further details or observations to add to the report. However, the fact that an administrator has reported the bug underscores its potential severity and impact on the game.

Conclusion

The bug report concerning players falling off the map during paradrop maneuvers is a critical issue that requires prompt attention. The bug directly impacts gameplay by disrupting the player's experience and preventing them from reliably using the paradrop mechanic. The reproduction steps provided offer a clear path for developers and testers to investigate the bug, and the analysis of relevant testmerges highlights potential areas of concern.

Addressing this bug is crucial for maintaining the quality of the game and ensuring a positive player experience. By thoroughly investigating the issue and implementing a robust fix, the developers can restore the reliability of the paradrop system and prevent players from encountering this frustrating problem. The information presented in this report serves as a valuable resource for the development team, guiding them in their efforts to resolve this critical bug.

To effectively address this bug, developers should focus on the following areas:

  • Map Boundary Detection: Thoroughly review and test the map boundary detection system to ensure that it accurately identifies the edges of the playable area. Pay particular attention to edge cases and potential loopholes that might allow players to fall outside the map.
  • Parachuting Landing Logic: Examine the parachuting landing logic to ensure that it correctly calculates safe landing zones within the map boundaries. Consider factors such as player velocity, terrain, and proximity to map edges.
  • Multi-Z Level Interactions: If the bug is related to multi-z level functionality, carefully review the interactions between different z-levels and ensure that players are seamlessly transitioned between them.
  • Collision Detection: Verify that the collision detection system is functioning correctly and that players are properly colliding with the map boundaries.
  • Testing and Quality Assurance: Implement a comprehensive testing strategy to thoroughly test the parachuting mechanic and ensure that the bug is fully resolved. This should include both automated testing and manual testing by experienced players.

By focusing on these key areas, developers can effectively address the bug and prevent it from recurring in the future. This will contribute to a more stable and enjoyable gaming experience for all players.