Add ranged combat support

* Clean up the CombatAction and Attack code to make it easier to use for
  range.

* Add collision detection to the distance checks before attacking in the
  CombatAction.

* Create a Ruby DSL for defining projectile types and fix the
  ProjectileUpdateOperation so it uses the correct position offset.

* Fix the packet structure of the HintIconMessageEncoder.

data/plugins/combat/weapons/melee/daggers.rb

@@ -0,0 +1,37 @@
+DAGGER_WIDGET_ID         = 89
+DAGGER_SPECIAL_CONFIG_ID = 12
+DAGGER_SPECIAL_BUTTON_ID = 10
+
+create_weapon_class :dagger, widget: DAGGER_WIDGET_ID do
+  defaults speed: 4, animation: 7041, attack_type: :stab
+
+  attack_bonuses crush: -4, magic: 1
+  defence_bonuses magic: 1
+
+  style :accurate, button: 2
+  style :aggressive, button: 3
+  style :alt_aggressive, attack_type: :slash, animation: 7048, button: 4
+  style :defensive, animation: 7049, button: 5
+end
+
+# Need a separate WeaponClass for the dragon dagger because
+# of the differing animations
+create_weapon_class :dragon_dagger, widget: DAGGER_WIDGET_ID do
+  defaults speed: 4, animation: 402, attack_type: :stab
+  special_bar DAGGER_SPECIAL_CONFIG_ID, DAGGER_SPECIAL_BUTTON_ID
+
+  attack_bonuses crush: -4, magic: 1
+  defence_bonuses magic: 1
+
+  style :accurate, button: 2
+  style :aggressive, button: 3
+  style :alt_aggressive, attack_type: :slash, button: 4
+  style :defensive, button: 5
+end
+
+create_weapon /(?:drag|dragon) dagger.*/, :dragon_dagger do
+  set_special_attack speed: 4, energy_requirement: 25, animation: 1062, graphic: { id: 252, height: 100 } do
+    damage! delay: 0
+    damage! delay: 1
+  end
+end

data/plugins/combat/weapons/melee/granite_maul.rb

@@ -0,0 +1,9 @@
+create_weapon :granite_maul do
+  attack_bonuses slash: 92, crush: 80
+  other_bonuses melee_strength: 70
+
+  set_special_attack speed: 0, energy_requirement: 60, animation: 3157, graphic: 1225 do |_source, _target|
+    damage! delay: 0
+    damage! delay: 1
+  end
+end

data/plugins/combat/weapons/melee/scimitars.rb

@@ -0,0 +1,51 @@
+SCIMITAR_WIDGET_ID             = 81
+SCIMITAR_SPECIAL_BAR_CONFIG_ID = 21
+SCIMITAR_SPECIAL_BAR_BUTTON_ID = 21
+
+create_weapon_class :scimitar, widget: SCIMITAR_WIDGET_ID do
+  defaults speed: 4, animation: 390, attack_type: :slash
+  special_bar SCIMITAR_SPECIAL_BAR_CONFIG_ID, SCIMITAR_SPECIAL_BAR_BUTTON_ID
+
+  attack_bonuses crush: -2
+  defence_bonuses slash: -1
+
+  style :accurate, button: 2
+  style :aggressive, button: 3
+  style :alt_aggressive, attack_type: :stab, animation: 391, button: 4
+  style :defensive, button: 5
+end
+
+create_weapon :iron_scimitar do
+  attack_bonuses stab: 2, slash: 10
+  other_bonuses melee_strength: 9
+end
+
+create_weapon :steel_scimitar do
+  attack_bonuses stab: 3, slash: 15
+  other_bonuses melee_strength: 14
+end
+
+create_weapon /(black|white) scimitar/ do
+  attack_bonuses stab: 4, slash: 19
+  other_bonuses melee_strength: 14
+end
+
+create_weapon :mithril_scimitar do
+  attack_bonuses stab: 5, slash: 21
+  other_bonuses melee_strength: 20
+end
+
+create_weapon :adamant_scimitar do
+  attack_bonuses stab: 6, slash: 29
+  other_bonuses melee_strength: 28
+end
+
+create_weapon :rune_scimitar do
+  attack_bonuses stab: 7, slash: 45
+  other_bonuses melee_strength: 44
+end
+
+create_weapon :dragon_scimitar do
+  attack_bonuses stab: 8, slash: 67
+  other_bonuses melee_strength: 66
+end

data/plugins/combat/weapons/melee/two_handed_swords.rb

@@ -0,0 +1,57 @@
+TWO_HANDED_SWORD_WIDGET_ID         = 82
+TWO_HANDED_SWORD_SPECIAL_CONFIG_ID = 12
+TWO_HANDED_SWORD_SPECIAL_BUTTON_ID = 10
+
+create_weapon_class :two_handed_sword, widget: TWO_HANDED_SWORD_WIDGET_ID do
+  defaults speed: 7, animation: 7041, attack_type: :slash
+  special_bar TWO_HANDED_SWORD_SPECIAL_CONFIG_ID, TWO_HANDED_SWORD_SPECIAL_BUTTON_ID
+
+  animations stand: 7047, walk: 7046, run: 7039, idle_turn: 7044, turn_around: 7044, turn_left: 7043, turn_right: 7044
+
+  attack_bonuses stab: -4, magic: -4
+  defence_bonuses range: -1
+
+  style :accurate, button: 2
+  style :aggressive, attack_type: :crush, button: 3
+  style :alt_aggressive, attack_type: :crush, animation: 7048, button: 4
+  style :defensive, animation: 7049, button: 5
+end
+
+create_weapon :iron_2h_sword do
+  attack_bonuses slash: 13, crush: 10
+  other_bonuses melee_strength: 14
+end
+
+create_weapon :steel_2h_sword do
+  attack_bonuses slash: 21, crush: 16
+  other_bonuses melee_strength: 22
+end
+
+create_weapon /(?:black|white) 2h sword/ do
+  attack_bonuses slash: 27, crush: 21
+  other_bonuses melee_strength: 26
+end
+
+create_weapon :mithril_2h_sword do
+  attack_bonuses slash: 30, crush: 24
+  other_bonuses melee_strength: 26
+end
+
+create_weapon :adamant_2h_sword do
+  attack_bonuses slash: 43, crush: 30
+  other_bonuses melee_strength: 31
+end
+
+create_weapon :rune_2h_sword do
+  attack_bonuses slash: 69, crush: 50
+  other_bonuses melee_strength: 70
+end
+
+create_weapon :dragon_2h_sword do
+  attack_bonuses slash: 92, crush: 80
+  other_bonuses melee_strength: 70
+
+  set_special_attack speed: 7, energy_requirement: 60, animation: 3157, graphic: 1225 do |_source, _target|
+    damage!
+  end
+end