attribute exercising

src/components.rs

@@ -354,6 +354,17 @@ impl Attributes {
             charisma: Attribute::new(cha),
         }
     }
+    pub fn attr_from_index(&self, attr: i32) -> &Attribute {
+        match attr {
+            Self::STR => &self.strength,
+            Self::DEX => &self.dexterity,
+            Self::CON => &self.constitution,
+            Self::INT => &self.intelligence,
+            Self::WIS => &self.wisdom,
+            Self::CHA => &self.charisma,
+            _ => unreachable!("Tried to get an attribute that doesn't exist."),
+        }
+    }
     pub fn exercise(&mut self, attr: i32, improve: bool) {
         match attr {
             Self::STR => {

src/effects/attr.rs

@@ -1,7 +1,11 @@
 use specs::prelude::*;
+use bracket_lib::prelude::*;
 use super::{ EffectSpawner, EffectType };
 use crate::components::Attributes;
 
+const ATTRIBUTE_SOFTCAP: i32 = 20;
+const ABUSE_CHANCE: i32 = 2; // 1 in this chance of abuse. 2 = 50%, 3 = 33%, etc.
+
 pub(crate) fn exercise(ecs: &mut World, effect: &EffectSpawner, target: Entity) {
     // Unwrap vars from the effect
     let (attr, inc) = if let EffectType::Exercise { attribute, increment } = effect.effect_type {
@@ -13,6 +17,16 @@ pub(crate) fn exercise(ecs: &mut World, effect: &EffectSpawner, target: Entity)
     // Get target attributes
     let mut attributes = ecs.write_storage::<Attributes>();
     if let Some(has_attr) = attributes.get_mut(target) {
+        // Roll a d20. If we're trying to exercise a stat, we need to roll higher
+        // than the stat's current value. If we're abusing a stat, flip a coin.
+        let mut rng = ecs.write_resource::<RandomNumberGenerator>();
+        let success = if inc {
+            rng.roll_dice(1, ATTRIBUTE_SOFTCAP) > has_attr.attr_from_index(attr).current()
+        } else {
+            rng.roll_dice(1, ABUSE_CHANCE) == 1
+        };
+        if success {
             has_attr.exercise(attr, inc);
         }
+    }
 }

src/saveload_system.rs

@@ -28,7 +28,13 @@ macro_rules! serialize_individually {
 }
 
 #[cfg(target_arch = "wasm32")]
-pub fn save_game(_ecs: &mut World) {}
+pub fn save_game(_ecs: &mut World) {
+    console::log(
+        "Unfortunately, saving isn't supported in any easy way on the web. Sorry!
+         You can, at least, save your morgue file after dying - it'll be written
+         to the log, and just needs saving into a text file."
+    )
+}
 
 #[cfg(not(target_arch = "wasm32"))]
 pub fn save_game(ecs: &mut World) {