75 lines
1.5 KiB
C++
75 lines
1.5 KiB
C++
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#ifndef EFFECT_HPP
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#define EFFECT_HPP
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////////////////////////////////////////////////////////////
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// Headers
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////////////////////////////////////////////////////////////
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#include <SFML/Graphics.hpp>
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#include <string>
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////////////////////////////////////////////////////////////
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// Base class for effects
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////////////////////////////////////////////////////////////
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class Effect : public sf::Drawable
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{
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public :
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virtual ~Effect()
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{
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}
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const std::string& GetName() const
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{
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return myName;
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}
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void Load()
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{
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myIsLoaded = sf::Shader::IsAvailable() && OnLoad();
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}
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void Update(float time, float x, float y)
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{
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if (myIsLoaded)
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OnUpdate(time, x, y);
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}
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void Draw(sf::RenderTarget& target, sf::RenderStates states) const
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{
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if (myIsLoaded)
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{
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OnDraw(target, states);
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}
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else
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{
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sf::Text error("Shader not\nsupported");
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error.SetPosition(320.f, 200.f);
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error.SetCharacterSize(36);
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target.Draw(error, states);
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}
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}
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protected :
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Effect(const std::string& name) :
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myName(name),
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myIsLoaded(false)
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{
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}
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private :
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// Virtual functions to be implemented in derived effects
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virtual bool OnLoad() = 0;
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virtual void OnUpdate(float time, float x, float y) = 0;
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virtual void OnDraw(sf::RenderTarget& target, sf::RenderStates states) const = 0;
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private :
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std::string myName;
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bool myIsLoaded;
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};
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#endif // EFFECT_HPP
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