Can now pick up items

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

lib/features/player/player.dart

@@ -0,0 +1,108 @@
+import 'dart:math' as math;
+
+import 'package:wolf_dart/classes/linear_coordinates.dart';
+import 'package:wolf_dart/features/entities/collectible.dart';
+
+class Player {
+  // Spatial
+  double x;
+  double y;
+  double angle;
+
+  // Stats
+  int health = 100;
+  int ammo = 8;
+  int score = 0;
+
+  // Inventory
+  bool hasGoldKey = false;
+  bool hasSilverKey = false;
+  bool hasMachineGun = false;
+  bool hasChainGun = false;
+
+  Player({
+    required this.x,
+    required this.y,
+    required this.angle,
+  });
+
+  // Helper getter to interface with the RaycasterPainter
+  LinearCoordinates get position => (x: x, y: y);
+
+  // Helper methods to keep state manipulation safe
+  void takeDamage(int damage) {
+    health = math.max(0, health - damage);
+
+    if (health <= 0) {
+      print("YOU DIED!");
+    } else {
+      print("Ouch! ($health)");
+    }
+  }
+
+  void heal(int amount) {
+    final int newHealth = math.min(100, health + amount);
+
+    if (health < 100) {
+      print("Feelin' better. ($newHealth)");
+    }
+
+    health = newHealth;
+  }
+
+  void addAmmo(int amount) {
+    final int newAmmo = math.min(99, ammo + amount);
+
+    if (ammo < 99) {
+      print("Hell yeah. ($newAmmo)");
+    }
+
+    ammo = newAmmo;
+  }
+
+  bool tryPickup(Collectible item) {
+    bool pickedUp = false;
+
+    switch (item.type) {
+      case CollectibleType.health:
+        if (health >= 100) return false;
+        // Map IDs 47 (Dog Food) and 48 (Medkit)
+        heal(item.mapId == 47 ? 4 : 25);
+        pickedUp = true;
+        break;
+
+      case CollectibleType.ammo:
+        if (ammo >= 99) return false;
+        addAmmo(8);
+        pickedUp = true;
+        break;
+
+      case CollectibleType.treasure:
+        // Score values for Cross (52), Chalice (53), Chest (54), Crown (55)
+        if (item.mapId == 52) score += 100;
+        if (item.mapId == 53) score += 500;
+        if (item.mapId == 54) score += 1000;
+        if (item.mapId == 55) score += 5000;
+        if (item.mapId == 56) {
+          // 1-Up
+          heal(100);
+          addAmmo(25);
+        }
+        pickedUp = true;
+        break;
+
+      case CollectibleType.weapon:
+        if (item.mapId == 50) hasMachineGun = true;
+        if (item.mapId == 51) hasChainGun = true;
+        pickedUp = true;
+        break;
+
+      case CollectibleType.key:
+        if (item.mapId == 43) hasGoldKey = true;
+        if (item.mapId == 44) hasSilverKey = true;
+        pickedUp = true;
+        break;
+    }
+    return pickedUp;
+  }
+}