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124 lines
5.0 KiB
C++
124 lines
5.0 KiB
C++
/*
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* AdventureSpellMechanics.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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#include "ISpellMechanics.h"
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VCMI_LIB_NAMESPACE_BEGIN
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class CGTownInstance;
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enum class ESpellCastResult
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{
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OK, // cast successful
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CANCEL, // cast failed but it is not an error, no mana has been spent
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PENDING,
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ERROR// error occurred, for example invalid request from player
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};
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class AdventureSpellMechanics : public IAdventureSpellMechanics
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{
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public:
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AdventureSpellMechanics(const CSpell * s);
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bool canBeCast(spells::Problem & problem, const CGameInfoCallback * cb, const spells::Caster * caster) const final;
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bool canBeCastAt(spells::Problem & problem, const CGameInfoCallback * cb, const spells::Caster * caster, const int3 & pos) const final;
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bool adventureCast(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const override final;
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protected:
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///actual adventure cast implementation
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virtual ESpellCastResult applyAdventureEffects(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const;
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virtual ESpellCastResult beginCast(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const;
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virtual void endCast(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const;
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virtual bool canBeCastImpl(spells::Problem & problem, const CGameInfoCallback * cb, const spells::Caster * caster) const;
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virtual bool canBeCastAtImpl(spells::Problem & problem, const CGameInfoCallback * cb, const spells::Caster * caster, const int3 & pos) const;
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void performCast(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const;
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};
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class SummonBoatMechanics final : public AdventureSpellMechanics
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{
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public:
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SummonBoatMechanics(const CSpell * s);
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protected:
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bool canBeCastImpl(spells::Problem & problem, const CGameInfoCallback * cb, const spells::Caster * caster) const override;
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ESpellCastResult applyAdventureEffects(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const override;
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};
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class ScuttleBoatMechanics final : public AdventureSpellMechanics
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{
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public:
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ScuttleBoatMechanics(const CSpell * s);
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protected:
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bool canBeCastAtImpl(spells::Problem & problem, const CGameInfoCallback * cb, const spells::Caster * caster, const int3 & pos) const override;
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ESpellCastResult applyAdventureEffects(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const override;
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};
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class DimensionDoorMechanics final : public AdventureSpellMechanics
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{
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public:
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DimensionDoorMechanics(const CSpell * s);
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protected:
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bool canBeCastImpl(spells::Problem & problem, const CGameInfoCallback * cb, const spells::Caster * caster) const override;
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bool canBeCastAtImpl(spells::Problem & problem, const CGameInfoCallback * cb, const spells::Caster * caster, const int3 & pos) const override;
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ESpellCastResult applyAdventureEffects(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const override;
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void endCast(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const override;
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};
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class TownPortalMechanics final : public AdventureSpellMechanics
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{
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public:
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TownPortalMechanics(const CSpell * s);
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protected:
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ESpellCastResult applyAdventureEffects(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const override;
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ESpellCastResult beginCast(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const override;
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void endCast(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const override;
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private:
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const CGTownInstance * findNearestTown(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters, const std::vector <const CGTownInstance*> & pool) const;
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int32_t movementCost(const AdventureSpellCastParameters & parameters) const;
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std::vector <const CGTownInstance*> getPossibleTowns(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const;
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};
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class ViewMechanics : public AdventureSpellMechanics
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{
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public:
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ViewMechanics(const CSpell * s);
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protected:
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ESpellCastResult applyAdventureEffects(SpellCastEnvironment * env, const AdventureSpellCastParameters & parameters) const override;
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virtual bool filterObject(const CGObjectInstance * obj, const int32_t spellLevel) const = 0;
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virtual bool showTerrain(const int32_t spellLevel) const = 0;
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};
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class ViewAirMechanics final : public ViewMechanics
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{
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public:
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ViewAirMechanics(const CSpell * s);
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protected:
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bool filterObject(const CGObjectInstance * obj, const int32_t spellLevel) const override;
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bool showTerrain(const int32_t spellLevel) const override;
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};
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class ViewEarthMechanics final : public ViewMechanics
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{
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public:
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ViewEarthMechanics(const CSpell * s);
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protected:
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bool filterObject(const CGObjectInstance * obj, const int32_t spellLevel) const override;
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bool showTerrain(const int32_t spellLevel) const override;
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};
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VCMI_LIB_NAMESPACE_END
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