Add initial combat spell support

data/plugins/combat/combat_spell.rb

@@ -0,0 +1,95 @@
+class CombatSpell
+
+  attr_reader :button
+
+  attr_reader :spellbook
+
+  attr_reader :level
+
+  attr_reader :damage
+
+  attr_reader :runes
+
+  attr_reader :animation
+
+  attr_reader :graphic
+
+  attr_reader :hit_graphic
+
+  attr_reader :projectile
+
+  attr_reader :projectile_type
+
+  def initialize(button, spellbook, level, damage, runes, animation, graphic, hit_graphic, projectile, projectile_type)
+    @spellbook = spellbook
+    @button = button
+    @level = level
+    @damage = damage
+    @runes = runes
+    @animation = animation
+    @graphic = graphic
+    @hit_graphic = hit_graphic
+    @projectile = projectile
+    @projectile_type = projectile_type
+  end
+
+end
+
+class CombatSpellDSL
+
+  def initialize(&block)
+    instance_eval(&block)
+  end
+
+  def interface(spellbook:, button:)
+    @spellbook = spellbook
+    @button = button
+  end
+
+  def effects(animation: nil, graphic: nil, hit_graphic: nil)
+    @animation = animation
+    @graphic = graphic
+    @hit_graphic = hit_graphic
+  end
+
+  def projectile(projectile:, projectile_type:)
+    @projectile = projectile
+    @projectile_type = projectile_type
+  end
+
+  def level_requirement(level)
+    @level = level
+  end
+
+  def max_damage(damage)
+    @damage = damage
+  end
+
+  def runes(runes = {})
+    @runes = runes
+  end
+
+  def to_combat_spell
+    return CombatSpell.new(@button, @spellbook, @level, @damage, @runes, @animation, @graphic, @hit_graphic, @projectile, @projectile_type)
+  end
+
+end
+
+COMBAT_SPELLS = {}
+
+def create_combat_spell(name, &block)
+  fail 'Block not given' unless block_given?
+
+  combat_spell_dsl = CombatSpellDSL.new(&block)
+
+  COMBAT_SPELLS[name] = combat_spell_dsl.to_combat_spell
+end
+
+def spell_for(spellbook, button)
+
+  COMBAT_SPELLS.each do |name, spell|
+    return spell if spell.spellbook == spellbook && spell.button == button
+  end
+
+  fail "Unable to find a spell in spellbook '#{spellbook}' with button id '#{button}'"
+end