graphics.h

Go to the documentation of this file.

#pragma once
#include <string>
#include <functional>
#include <sgg/scancodes.h>
#include <vector>
 
namespace graphics
{
    typedef enum {
        CANVAS_SCALE_WINDOW = 0,
        CANVAS_SCALE_STRETCH,
        CANVAS_SCALE_FIT
    }
    scale_mode_t;
 
    struct Brush
    {
        float fill_color[3] = {1.f,1.f,1.f};               
 
        float fill_secondary_color[3] = { 1.f,1.f,1.f };   
 
        float fill_opacity = 1.0f;                         
        
        float fill_secondary_opacity = 1.f;                
 
        float outline_color[3] = { 1.f,1.f,1.f };          
 
        float outline_opacity = 1.f;                       
 
        float outline_width = 1.0f;                        
 
        std::string texture = "";                          
 
        bool gradient = false;                             
 
        float gradient_dir_u = 0.0f;                       
 
        float gradient_dir_v = 1.0f;                       
    };
 
    struct MouseState
    {
        bool button_left_pressed;   
        bool button_middle_pressed; 
        bool button_right_pressed;  
        bool button_left_released;  
        bool button_middle_released;
        bool button_right_released; 
        bool button_left_down;      
        bool button_middle_down;    
        bool button_right_down;     
        bool dragging;              
        int cur_pos_x;              
        int cur_pos_y;              
        int prev_pos_x;             
        int prev_pos_y;             
    };
 
 
    void createWindow(int width, int height, std::string title);
    
    void setWindowBackground(Brush style);
 
    void destroyWindow();
 
    void startMessageLoop();
 
    void stopMessageLoop();
 
    void setCanvasSize(float w, float h);
 
    void setCanvasScaleMode(scale_mode_t sm);
    
    void setFullScreen(bool fs);
    
    float windowToCanvasX(float x, bool clamped = true);
 
    float windowToCanvasY(float y, bool clamped = true);
 
    void setUserData(const void* user_data);
 
    void* getUserData();
 
    void setDrawFunction(std::function<void()> draw);
 
    void setUpdateFunction(std::function<void(float)> update );
 
    void setResizeFunction(std::function<void(int, int)> resize);
    void getMouseState(MouseState & ms);
 
 
    bool getKeyState(scancode_t key);
    float getDeltaTime();
 
    float getGlobalTime();
    void drawRect(float center_x, float center_y, float width, float height, const Brush & brush);
 
    void drawLine(float x1, float y1, float x2, float y2, const Brush & brush);
 
    void drawDisk(float cx, float cy, float radius, const Brush & brush);
 
    void drawSector(float cx, float cy, float radius1, float radius2, float start_angle, float end_angle, const Brush & brush);
 
    bool setFont(std::string fontname);
 
    void drawText(float pos_x, float pos_y, float size, const std::string & text, const Brush & brush);
    
    void setOrientation(float angle);
 
    void setScale(float sx, float sy);
 
    void resetPose();
    
    std::vector<std::string> preloadBitmaps(std::string dir);
 
    void playSound(std::string soundfile, float volume, bool looping = false);
 
    void playMusic(std::string soundfile, float volume, bool looping = true, int fade_time = 0);
 
    void stopMusic(int fade_time = 0);
}