Stage 13: Perks and Totems

src/main/java/dev/loki/hatch/HatchCondition.java

@@ -0,0 +1,76 @@
+package dev.loki.hatch;
+
+import dev.loki.player.BasePlayer;
+import dev.loki.player.PlayerState;
+
+import java.util.Collection;
+
+public class HatchCondition {
+    private final int minSurvivorsForOpen;
+
+    public HatchCondition(int minSurvivorsForOpen) {
+        this.minSurvivorsForOpen = minSurvivorsForOpen;
+    }
+
+    public boolean shouldSpawn(Collection<BasePlayer> players, int repairedGenerators) {
+        int aliveSurvivors = countAliveSurvivors(players);
+        return aliveSurvivors <= repairedGenerators;
+    }
+
+    public boolean shouldOpen(Hatch hatch, Collection<BasePlayer> players, int repairedGenerators) {
+        if (hatch.isOpen()) return false;
+        if (!hatch.isClosed() && !hatch.isHidden()) return false;
+
+        return shouldSpawn(players, repairedGenerators);
+    }
+
+    public boolean canOpen(Hatch hatch, Collection<BasePlayer> players, int repairedGenerators) {
+        if (!hatch.isHidden() && !hatch.isClosed()) return false;
+
+        int aliveSurvivors = countAliveSurvivors(players);
+        int requiredGens = Math.max(minSurvivorsForOpen, aliveSurvivors);
+
+        return repairedGenerators >= requiredGens;
+    }
+
+    public int countAliveSurvivors(Collection<BasePlayer> players) {
+        return (int) players.stream()
+            .filter(p -> !p.isKiller())
+            .filter(this::isAlive)
+            .count();
+    }
+
+    private boolean isAlive(BasePlayer player) {
+        PlayerState state = player.getState();
+        return state != PlayerState.DEAD
+            && state != PlayerState.ESCAPED
+            && state != PlayerState.HOOKED;
+    }
+
+    public int getRemainingAlive(Collection<BasePlayer> players) {
+        return countAliveSurvivors(players);
+    }
+
+    public boolean isLastSurvivor(Collection<BasePlayer> players) {
+        return countAliveSurvivors(players) == 1;
+    }
+
+    public boolean checkAndReveal(Hatch hatch, Collection<BasePlayer> players, int repairedGenerators) {
+        if (hatch.isHidden() && shouldSpawn(players, repairedGenerators)) {
+            hatch.reveal();
+            return true;
+        }
+        return false;
+    }
+
+    public boolean checkAndOpen(Hatch hatch, Collection<BasePlayer> players, int repairedGenerators) {
+        if (canOpen(hatch, players, repairedGenerators)) {
+            if (hatch.isHidden()) {
+                hatch.reveal();
+            }
+            hatch.open();
+            return true;
+        }
+        return false;
+    }
+}