add coal drill elf milestones, also changed mining drill to coal drill

src/data/layers/coal.tsx

@@ -278,7 +278,7 @@ const layer = createLayer(id, function (this: BaseLayer) {
         },
         display: jsx(() => (
             <>
-                <h3>Mining Drill</h3>
+                <h3>Coal Drill</h3>
                 <br />
                 Dig through the ground to find 50,000,000 coal
                 <br />
@@ -575,7 +575,7 @@ const layer = createLayer(id, function (this: BaseLayer) {
             addend() {
                 return drillCoal.value;
             },
-            description: "Mining Drills",
+            description: "Coal Drills",
             enabled() {
                 return Decimal.gt(activeDrills.value, 0);
             }

src/data/layers/elves.tsx

@@ -759,7 +759,7 @@ const layer = createLayer(id, function (this: BaseLayer) {
         visibility: () => showIf(plastic.elfUpgrades.clothElf.bought.value)
     });
     const plasticElves = [paperElf, boxElf, clothElf];
-    const miningDrillElf = createElf({
+    const coalDrillElf = createElf({
         name: "Peppermint",
         description:
             "Peppermint will automatically purchase all mining drills you can afford, without actually spending any resources.",
@@ -819,7 +819,7 @@ const layer = createLayer(id, function (this: BaseLayer) {
             }
         }
     });
-    const managementElves = [miningDrillElf, heavyDrillElf, oilElf];
+    const managementElves = [coalDrillElf, heavyDrillElf, oilElf];
     const metalElf = createElf({
         name: "Twinkle",
         description:

src/data/layers/management.tsx

@@ -822,7 +822,47 @@ const layer = createLayer(id, () => {
             shouldEarn: () => clothElfTraining.level.value >= 5
         }))
     ] as Array<GenericMilestone>;
-
+    const coalDrillElfMilestones = [
+        createMilestone(() => ({
+            display: {
+                requirement: "Peppermint Level 1",
+                effectDisplay: "The mining drill exponent is increased from 2 to 2.5"
+            },
+            shouldEarn: () => coalDrillElfTraining.level.value >= 1
+        })),
+        createMilestone(() => ({
+            display: {
+                requirement: "Peppermint Level 2",
+                effectDisplay: "Coal boosts its own gain"
+            },
+            visibility: () => showIf(coalDrillElfMilestones[0].earned.value),
+            shouldEarn: () => coalDrillElfTraining.level.value >= 2
+        })),
+        createMilestone(() => ({
+            display: {
+                requirement: "Peppermint Level 3",
+                effectDisplay: "The coal drill cost is decreased"
+            },
+            visibility: () => showIf(coalDrillElfMilestones[1].earned.value),
+            shouldEarn: () => coalDrillElfTraining.level.value >= 3
+        })),
+        createMilestone(() => ({
+            display: {
+                requirement: "Peppermint Level 4",
+                effectDisplay: "Unlock another row of coal upgrades"
+            },
+            visibility: () => showIf(coalDrillElfMilestones[2].earned.value && main.day.value >= 13),
+            shouldEarn: () => coalDrillElfTraining.level.value >= 4
+        })),
+        createMilestone(() => ({
+            display: {
+                requirement: "Peppermint Level 5",
+                effectDisplay: "Well depth boosts coal gain more"
+            },
+            visibility: () => showIf(coalDrillElfMilestones[3].earned.value && main.day.value >= 13),
+            shouldEarn: () => coalDrillElfTraining.level.value >= 5
+        }))
+    ] as Array<GenericMilestone>;
     // ------------------------------------------------------------------------------- Milestone display
 
     const currentShown = persistent<string>("Holly");
@@ -875,7 +915,8 @@ const layer = createLayer(id, () => {
     const boxElfTraining = createElfTraining(elves.elves.boxElf, boxElfMilestones);
     const clothElfTraining = createElfTraining(elves.elves.clothElf, clothElfMilestones);
     const plasticElfTraining = [paperElfTraining, boxElfTraining, clothElfTraining];
-
+    const coalDrillElfTraining = createElfTraining(elves.elves.coalDrillElf, coalDrillElfMilestones);
+    const row5Elves = [coalDrillElfTraining]
     const elfTraining = {
         cutterElfTraining,
         planterElfTraining,
@@ -888,7 +929,8 @@ const layer = createLayer(id, () => {
         kilnElfTraining,
         paperElfTraining,
         boxElfTraining,
-        clothElfTraining
+        clothElfTraining,
+        coalDrillElfTraining
     };
     const day12Elves = [
         cutterElfTraining,
@@ -916,7 +958,8 @@ const layer = createLayer(id, () => {
         kilnElfTraining,
         paperElfTraining,
         boxElfTraining,
-        clothElfTraining
+        clothElfTraining,
+        coalDrillElfTraining
     ];
 
     // ------------------------------------------------------------------------------- Update
@@ -1380,7 +1423,8 @@ const layer = createLayer(id, () => {
                             treeElfTraining,
                             coalElfTraining,
                             fireElfTraining,
-                            plasticElfTraining
+                            plasticElfTraining,
+                            row5Elves
                         )}
                         <Spacer />
                         {currentElfDisplay()}