feat(engine): changestat implementation

data/src/scripts/player/scripts/changestat.rs2

@@ -0,0 +1 @@
+[changestat,_] gosub(player_combat_stat);

src/lostcity/engine/script/ServerTriggerType.ts

@@ -156,7 +156,8 @@ enum ServerTriggerType {
     MAPZONE = 161,
     MAPZONEEXIT = 162,
     ZONE = 163,
-    ZONEEXIT = 164
+    ZONEEXIT = 164,
+    CHANGESTAT = 165
 }
 
 namespace ServerTriggerType {

src/lostcity/engine/script/handlers/PlayerOps.ts

@@ -448,6 +448,9 @@ const PlayerOps: CommandHandlers = {
         if (stat === 3 && player.levels[3] >= player.baseLevels[3]) {
             player.resetHeroPoints();
         }
+        if (added !== current) {
+            player.changeStat(stat);
+        }
     }),
 
     [ScriptOpcode.STAT_SUB]: checkedHandler(ActivePlayer, state => {
@@ -461,6 +464,9 @@ const PlayerOps: CommandHandlers = {
         const current = player.levels[stat];
         const subbed = current - (constant + (current * percent) / 100);
         player.levels[stat] = Math.max(subbed, 0);
+        if (subbed !== current) {
+            player.changeStat(stat);
+        }
     }),
 
     [ScriptOpcode.SPOTANIM_PL]: checkedHandler(ActivePlayer, state => {
@@ -487,6 +493,10 @@ const PlayerOps: CommandHandlers = {
         if (stat === 3 && player.levels[3] >= player.baseLevels[3]) {
             player.resetHeroPoints();
         }
+
+        if (healed !== current) {
+            player.changeStat(stat);
+        }
     }),
 
     [ScriptOpcode.UID]: checkedHandler(ActivePlayer, state => {

src/lostcity/entity/Player.ts

@@ -1520,6 +1520,7 @@ export default class Player extends PathingEntity {
                 // replenish 1 of the stat upon levelup.
                 this.levels[stat] += 1;
             }
+            this.changeStat(stat);
             const script = ScriptProvider.getByTriggerSpecific(ServerTriggerType.ADVANCESTAT, stat, -1);
 
             if (script) {
@@ -1533,6 +1534,13 @@ export default class Player extends PathingEntity {
         }
     }
 
+    changeStat(stat: number) {
+        const script = ScriptProvider.getByTrigger(ServerTriggerType.CHANGESTAT, stat, -1);
+        if (script) {
+            this.enqueueScript(script, PlayerQueueType.ENGINE);
+        }
+    }
+
     setLevel(stat: number, level: number) {
         level = Math.min(99, Math.max(1, level));