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87 lines
2.1 KiB
87 lines
2.1 KiB
5 years ago
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#pragma once
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#include <cstddef>
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#include <string>
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#include <functional>
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#include <vector>
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#include <unordered_map>
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namespace devilution {
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/** The Keymapper maps keys to actions. */
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class Keymapper final {
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public:
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using SetConfigKeyFunction = std::function<void(const std::string &key, const std::string &value)>;
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using GetConfigKeyFunction = std::function<std::string(const std::string &key)>;
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using ActionIndex = std::size_t;
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/**
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* Action represents an action that can be triggered using a keyboard
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* shortcut.
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*/
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class Action final {
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public:
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/** Can this action be triggered while the player is dead? */
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enum class IfDead {
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Allow,
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Ignore,
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};
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Action(const std::string &name, int defaultKey, std::function<void()> action)
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: name(name)
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, defaultKey(defaultKey)
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, action(action)
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, ifDead(IfDead::Ignore)
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{
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}
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Action(const std::string &name, int defaultKey, std::function<void()> action, IfDead ifDead)
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: name(name)
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, defaultKey(defaultKey)
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, action(action)
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, ifDead(ifDead)
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{
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}
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void operator()() const
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{
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action();
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}
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private:
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std::string name;
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int defaultKey;
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std::function<void()> action;
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IfDead ifDead;
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int key {};
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friend class Keymapper;
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};
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/**
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* Keymapper, for now, uses two function pointers to interact with the
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* configuration.
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* This is mostly a workaround and should be replaced later when another INI
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* library will be used.
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*/
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Keymapper(SetConfigKeyFunction setKeyFunction, GetConfigKeyFunction getKeyFunction);
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ActionIndex addAction(const Action &action);
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void keyPressed(int key, bool isPlayerDead) const;
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std::string keyNameForAction(ActionIndex actionIndex) const;
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void save() const;
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void load();
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private:
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int getActionKey(const Action &action);
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std::vector<Action> actions;
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std::unordered_map<int, std::reference_wrapper<Action>> keyIDToAction;
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std::unordered_map<int, std::string> keyIDToKeyName;
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std::unordered_map<std::string, int> keyNameToKeyID;
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SetConfigKeyFunction setKeyFunction;
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GetConfigKeyFunction getKeyFunction;
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};
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} // namespace devilution
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