[WIP] Added support for material properties

CHANGELOG.md

@@ -14,6 +14,7 @@ https://github.com/nwnxee/unified/compare/build8193.21...HEAD
 
 ##### New Plugins
 - NoStack: Adds `NWNX_NOSTACK_*` variables to control ability, skill, attack and/or saving throw bonuses stacking
+- WeaponMaterials: Added functionality to implement Material properties on weapons and material-based damage reductions.
 
 ##### New NWScript Functions
 - Creature: Get{Armor|Shield}CheckPenalty() for dex-based skills

Plugins/WeaponMaterials/CMakeLists.txt

@@ -0,0 +1,2 @@
+add_plugin(WeaponMaterials
+    "WeaponMaterials.cpp")

Plugins/WeaponMaterials/README.md

@@ -0,0 +1,86 @@
+@addtogroup weaponmaterials WeaponMaterials
+@page weaponmaterials Readme
+@ingroup weaponmaterials
+
+Implements damage reductions based on weapon materials as per PnP rules.
+
+## Usage
+### New damage types
+Damage types are needed to create mappings between materials and damage resistance/reduction effects.
+
+To create new damage types based on materials, simply add the new damage types to `iprp_damagetype.2da`. The `Material` column will take a default value of 0 if empty. The value in this column should match an index in `iprp_material.2da`. Name is the StrRef to be used when displaying the material name. You can use the same StrRef used in `iprp_material.2da`.
+
+Example iprp_damagetype.2da:
+
+```
+2DA V2.0                               
+
+           Name   Label         Cost    Material
+0          1031   Bludgeoning   1.25    0
+1          1032   Piercing      1.25    0
+2          1033   Slashing      1.25    0
+3          ****   Subdual       ****    0
+4          ****   Physical      ****    0
+5          62487  Magical       0.35    0
+6          1027   Acid          0.35    0
+7          1029   Cold          0.4     0
+8          5155   Divine        0.4     0
+9          1030   Electrical    0.45    0
+10         1028   Fire          0.5     0
+11         5158   Negative      0.5     0
+12         5159   Positive      0.5     0
+13         111776   Adamantine  0.5     1
+14         111780   ColdIron    0.5     5
+15         111782   Darksteel   0.5     7
+16         111786   Mithral     0.5     11
+17         111788   Silver      0.5     13
+18         111789   AlchSilver  0.5     14
+
+```
+
+### New damage reductions
+
+Damage reductions for materials work exactly like damage soaking in the form X/+Y where +Y will be a material instead of a numeric value to overcome. Only weapons with that material property will ignore X/Material reductions.
+
+See the previous section for info on the Name and Material columns.
+
+Example `iprp_protection.2da`:
+```
+2DA V2.0                            
+
+           Name   Label      Cost   Material
+0          1045   Bonus+1    1.25   
+1          1046   Bonus+2    1.75   
+2          1047   Bonus+3    2.25   
+3          1048   Bonus+4    2.5    
+4          1049   Bonus+5    2.75   
+5          1050   Bonus+6    4      
+6          1051   Bonus+7    5      
+7          1052   Bonus+8    6      
+8          1053   Bonus+9    7      
+9          1054   Bonus+10   8      
+10         1954   Bonus+11   10     
+11         1992   Bonus+12   12     
+12         2113   Bonus+13   14     
+13         2119   Bonus+14   16     
+14         2139   Bonus+15   18     
+15         2163   Bonus+16   20     
+16         2164   Bonus+17   22     
+17         2187   Bonus+18   24     
+18         2191   Bonus+19   26     
+19         2192   Bonus+20   28     
+20         111776   Adamantine  2.75    1
+21         111780   ColdIron    2.75    5
+22         111782   Darksteel   2.75    7
+23         111786   Mithral     2.75    11
+24         111788   Silver      2.75    13
+25         111789   AlchSilver  2.75    14
+```
+
+### New damage resistances
+Damage resistance uses damage types (`iprp_damagetype.2da`) to define the kind of damage that will be reduced. No other input is neede to make resistances work.
+
+NOTE: Damage resistances are added for completeness, it's recommended to use damage reductions only. PnP rules state that material reductions act the same way as damage reductions against non-magical weapons.
+
+### Damage vulnerability/immunity
+WIP.