ic-explorer/window.h

#ifndef IC_EXPLORER_WINDOW_H
#define IC_EXPLORER_WINDOW_H

#include <SDL.h>

#define AUTOMATIC_SCALE 0.0f

#define MAX_ZOOM 2.0f
#define ZOOM_TIME 750

#define WINDOW_STATE_NORMAL 0
#define WINDOW_STATE_ZOOMING_IN 1
#define WINDOW_STATE_ZOOMING_OUT 2
#define WINDOW_STATE_ZOOMED 3

typedef struct {
    float x;
    float y;
} Point;

typedef struct {
    SDL_Window *obj;
    SDL_Renderer *render;
    SDL_Texture *background;
    Point focus;
    Point targetFocus;
    Point startFocus;
    float zoom;
    int state;
    double nowTime;
    double lastTime;
    double delta;
} Window;

Window *windowNew(const char *title, int width, int height);

void windowDelete(Window *window);

void windowDraw(Window *window);

void windowUpdate(Window *window);

void windowZoomTo(Window *window, float x, float y);

void windowZoomOut(Window *window);

#endif /* IC_EXPLORER_WINDOW_H */