Special Mayor Command (#292)

* Special Mayor Command

Added a special mayor command, gives time until next special mayor along with who it is speculated to be.

* Update specialMayorCommand.js

src/minecraft/commands/specialMayorCommand.js

@@ -0,0 +1,78 @@
+const minecraftCommand = require("../../contracts/minecraftCommand.js");
+
+
+/*
+Derpy = 368 mod 24 = 8
+Jerry = 376 mod 24 = 16
+Scorpius = 384 mod 24 = 0
+https://hypixel-skyblock.fandom.com/wiki/Mayor_Election#Special_Candidates_Election_Cycle
+*/
+
+const hourMs = 50000;
+const dayMs = 24 * hourMs;
+const monthLength = 31;
+const yearLength = 12;
+
+const monthMs = monthLength * dayMs;
+const yearMs = yearLength * monthMs;
+
+const yearZero = 1560275700000;
+
+const currentSkyblockYear = timeToSkyblockYear(Date.now());
+
+var yearsUntilSpecial = 0;
+var diffSkyblockYear = currentSkyblockYear;
+var specialMayor = "";
+
+
+function timeToSkyblockYear(time) {
+    return Math.floor((time - yearZero) / yearMs) + 1;
+  }
+
+function getSpecialMayor(skyblockYear) {
+    if (diffSkyblockYear % 24 == 8){
+        specialMayor = "Derpy";
+    } else if (diffSkyblockYear % 24 == 16){
+        specialMayor = "Jerry";
+    } else if (diffSkyblockYear % 24 == 0){
+        specialMayor = "Scorpius";
+    } else {
+        specialMayor = "Error!";
+    }
+    return specialMayor;
+}
+
+class SpecialMayorCommand extends minecraftCommand {
+    constructor(minecraft) {
+      super(minecraft);
+
+      this.name = "specialmayor";
+      this.aliases = ["specmayor"];
+      this.description = "How many years until next special mayor, along with speculated special mayor.";
+      this.options = [];
+    }
+
+    async onCommand() {
+        try {
+
+            if (currentSkyblockYear % 8 == 0){
+                specialMayor = getSpecialMayor(currentSkyblockYear);
+                this.send(`/gc Special Mayor this year! It is speculated to be ${specialMayor}.`);
+            } else {
+                while (diffSkyblockYear % 8 != 0){
+                    yearsUntilSpecial += 1;
+                    diffSkyblockYear += 1;
+                    specialMayor = getSpecialMayor(diffSkyblockYear);
+                }
+                this.send(`/gc Not Special Mayor, ${yearsUntilSpecial} years until the next one! It is speculated to be ${specialMayor}.`);
+            }
+
+        } catch (error) {
+            console.log(error)
+            this.send(`/gc [ERROR] ${error}`);
+        }
+    }
+  }
+
+  module.exports = SpecialMayorCommand;
+