===== Mining Upgrade System - Luck-Based Upgrades =====

The **mining vein upgrade system** is based on the player's **Luck** value. The higher the Luck, the better the chance to upgrade a mining vein to the next tier of resources. Here's a detailed explanation of how the system works and how Luck influences the upgrade chances.

==== Luck Roll Calculation ====
The system calculates a **luck roll** based on the player's current Luck value. The roll is a random number between 0 and the player's Luck. This makes it harder for players with lower Luck to upgrade, while players with higher Luck have better chances.

==== Upgrade Chances ====
Each mining/lumberjacking and skinning resource has a specific formula that determines the chance of upgrading to the next tier. The higher the player's Luck, the better their chances. 


==== Upgrade Chances Table (Steps of 10 Luck) ====
The following table shows the upgrade chances for each resource type in steps of 10 Luck:
^ **Luck**      ^ **Regular to Shadow** ^ **Shadow to Copper** ^ **Copper to Bronze** ^ **Bronze to Verite** ^ **Verite to Valorite** ^
| **10 Luck**   | 5%                 | 3.33%                | 2.86%                | 2.5%                 | 0%                     |
| **20 Luck**   | 10%                | 6.67%                | 5.71%                | 5%                   | 0%                     |
| **30 Luck**   | 15%                | 10%                  | 8.57%                | 7.5%                 | 0%                     |
| **40 Luck**   | 20%                | 13.33%               | 11.43%               | 10%                  | 0%                     |
| **50 Luck**   | 25%                | 16.67%               | 14.29%               | 12.5%                | 1%                     |
| **60 Luck**   | 30%                | 20%                  | 17.14%               | 15%                  | 4%                     |
| **70 Luck**   | 35%                | 23.33%               | 20%                  | 17.5%                | 8%                     |
| **80 Luck**   | 40%                | 26.67%               | 22.86%               | 20%                  | 12%                    |
| **90 Luck**   | 45%                | 30%                  | 25.71%               | 22.5%                | 16%                    |
| **100 Luck**  | 50%                | 33.33%               | 28.57%               | 25%                  | 20%                    |