game/sdlpp/sdlpp_renderobject.hpp

#ifndef SDLPP_HPP_RENDER_OBJECT
#define SDLPP_HPP_RENDER_OBJECT

#include "sdlpp_common.hpp"
#include "sdlpp_collision.hpp"
#include "sdlpp_renderer.hpp"
#include "sdlpp_texture.hpp"
#include "sdlpp_vector.hpp"
#include "sdlpp_visitor.hpp"

#include <memory>
#include <vector>
#ifndef _WIN32
#include <SDL2/SDL_render.h>
#else
#include "SDL2/SDL_render.h"
#endif

namespace SDLPP {

enum ObjectAlignment {
    OBJ_START,
    OBJ_CENTER,
    OBJ_END,
};

class Scene;

class SDLPPSCOPE RenderObject {
public:
    RenderObject( const std::shared_ptr< Renderer > &r ) : renderer( r ) {}
    virtual ~RenderObject() {}
    virtual void render();
    virtual int leftmost() = 0;
    virtual int topmost() = 0;
    virtual int rightmost() = 0;
    virtual int bottommost() = 0;
    virtual int collisionPushX() = 0;
    virtual int collisionPushY() = 0;
    virtual int collisionWidth() = 0;
    virtual int collisionHeight() = 0;
    virtual void specialAction( int code ) = 0;
    virtual std::pair< Vec2D< double >, Vec2D< double > >
    getDoubleRect() const = 0;
    virtual void setPos( double x, double y );
    virtual void setPos( const std::pair< double, double > &pos );
    virtual void setPos( const Vec2D< double > &vec );
    virtual Vec2D< double > getPos() const;
    virtual Vec2D< double > getAbsolutePos() const;
    std::vector< uint64_t > colidesWith( const RenderObject &other ) const;
    template < class T > void addCollision( const T &p ) {
        collisions.push_back( std::make_shared< T >( p ) );
        collisions.back()->updateCollision( collisionPushX(), collisionPushY(),
                                            collisionWidth(), collisionHeight(),
                                            getId() );
    }
    template < class T > void addCollision( const std::shared_ptr< T > &p ) {
        collisions.push_back( p );
        collisions.back()->updateCollision( collisionPushX(), collisionPushY(),
                                            collisionWidth(), collisionHeight(),
                                            getId() );
    }
    void removeCollisions();
    bool hasCollisions() const;
    const std::vector< std::shared_ptr< CollisionPolygon > > &
    getCollisions() const;
    virtual void setTextureKeepSRC( const std::shared_ptr< Texture > &t );
    virtual void setTexture( const std::shared_ptr< Texture > &t, int source_x,
                             int source_y, int source_width,
                             int source_height );
    virtual void setTexture( const std::shared_ptr< Texture > &t,
                             const SDL_Rect &source_rect = { -1, -1, -1, -1 } );
    virtual void setTexture( const std::string &img_path, int source_x,
                             int source_y, int source_width,
                             int source_height );
    virtual void setTexture( const std::string &img_path,
                             const SDL_Rect &source_rect = { -1, -1, -1, -1 } );
    virtual void setTexture( Font &font, const std::string &text,
                             const std::string &color = "FFFFFF",
                             const std::string &outline_color = "000000",
                             int outline_size = -1 );
    virtual void setColor( const std::string &color ) = 0;
    virtual void setOutlineColor( const std::string &color ) = 0;
    virtual void unsetTexture();
    virtual void unsetColor();
    // per second, relative to window width
    void setMovementSpeed( double speed );
    void addMovement( double x, double y );
    void setMovement( double x, double y );
    Vec2D< double > getMovement() const;
    void resetMovementX();
    void resetMovementY();
    void clearColided();
    void addColided( std::shared_ptr< RenderObject > &obj );
    std::vector< std::shared_ptr< RenderObject > > &getColidedWith();
    void setId( uint64_t input_id );
    uint64_t getId() const;
    void setHidden( bool hid );
    bool getHidden() const;
    void destroy();
    bool getKilled();
    void setColiderColor( const std::string &color );
    virtual void move( int ticks );
    virtual void custom_move( int ticks ) = 0;
    virtual void updateSizeAndPosition() = 0;
    virtual void updateXY();
    virtual SDL_Rect getRect() = 0;
    void setPermanent( bool perm = true );
    bool getPermanent() const;
    virtual std::shared_ptr< RenderObject > copySelf() = 0;
    bool isStatic();
    void setStatic( bool stat = true );
    std::shared_ptr< Renderer > getRenderer() const;
    void setTextureAlpha( uint8_t alpha );
    void setTextureSourceRect( const SDL_Rect &source_rect );
    void setTextureSourceRect( int x, int y, int w, int h );
    SDL_Rect getTextureSourceRect() const;
    void setAnimationFrames( const std::vector< SDL_Rect > &frames );
    void addAnimationFrame( const SDL_Rect &frame );
    void addAnimationFrame( const int x, const int y, const int w,
                            const int h );
    void setAnimationSpeed( const double fps );
    void pauseAnimation();
    void resumeAnimation();
    void removeAnimation();
    void animate( int ticks );
    virtual void visit( Visitor &visitor );
    void setAlignment( ObjectAlignment horizontal, ObjectAlignment vertical );
    void flipHorizontally();
    void flipVertically();
    void setRotationCenter( const Vec2D< double > &center );
    void rotateClockwise( int angle );
    void rotateCounterClockwise( int angle );

protected:
    virtual void copyTo( std::shared_ptr< RenderObject > other );
    bool entireTexture();
    std::vector< std::shared_ptr< CollisionPolygon > > collisions;
    std::shared_ptr< Texture > texture;
    std::shared_ptr< Texture > cur_texture;
    std::shared_ptr< Renderer > renderer;
    std::shared_ptr< CollisionPolygon > polygon;
    double movementSpeed = 0;
    Vec2D< double > movementDirection = { 0, 0 };
    std::vector< std::shared_ptr< RenderObject > > colidedWith;
    virtual Vec2D< double > computeAlignmentAdditions();
    uint64_t id = -1;
    bool hidden = false;
    bool kill = false;
    SDL_Color colider_color = { 0x00, 0xFF, 0xFF, 0xFF };
    uint64_t scene_id = -1;
    bool permanent = false;
    bool is_static = true;
    bool centerx = false;
    SDL_Rect rect;
    SDL_Rect src_rect = { -1, -1, -1, -1 };
    size_t animation_index = 0;
    size_t animation_fps = 1;
    int animation_next_frame = 1000;
    int animation_next_frame_base = 0;
    std::vector< SDL_Rect > animation{};
    bool animating = true;
    SDL_RendererFlip flip = SDL_FLIP_NONE;
    Vec2D< double > rotation_center = { -1, -1 };
    SDL_Point rotation_center_point;
    int rotation_angle = 0;

private:
    friend Scene;
    void setSceneID( int id );

protected:
    Vec2D< double > original;
    Vec2D< double > current;
    ObjectAlignment _horizontal = OBJ_START;
    ObjectAlignment _vertical = OBJ_START;
};
} // end of namespace SDLPP

#endif