Improved weapon switching

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

lib/features/weapon/weapons/chain_gun.dart

@@ -0,0 +1,12 @@
+import 'package:wolf_dart/features/weapon/weapon.dart';
+
+class ChainGun extends Weapon {
+  ChainGun()
+    : super(
+        type: WeaponType.chainGun,
+        idleSprite: 432,
+        fireFrames: [433, 434],
+        damage: 40,
+        msPerFrame: 30,
+      );
+}

lib/features/weapon/weapons/knife.dart

@@ -3,7 +3,7 @@ import 'package:wolf_dart/features/weapon/weapon.dart';
 class Knife extends Weapon {
   Knife()
     : super(
-        name: "Knife",
+        type: WeaponType.knife,
         idleSprite: 416,
         fireFrames: [417, 418, 419, 420],
         damage: 15,

lib/features/weapon/weapons/machine_gun.dart

@@ -3,9 +3,9 @@ import 'package:wolf_dart/features/weapon/weapon.dart';
 class MachineGun extends Weapon {
   MachineGun()
     : super(
-        name: "Machine Gun",
-        idleSprite: 413,
-        fireFrames: [414, 415],
+        type: WeaponType.machineGun,
+        idleSprite: 427,
+        fireFrames: [428, 429, 430],
         damage: 20,
         msPerFrame: 80,
       );

lib/features/weapon/weapons/pistol.dart

@@ -3,7 +3,7 @@ import 'package:wolf_dart/features/weapon/weapon.dart';
 class Pistol extends Weapon {
   Pistol()
     : super(
-        name: "Pistol",
+        type: WeaponType.pistol,
         idleSprite: 421,
         fireFrames: [422, 423, 424, 425],
         damage: 20,