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#include <iostream>
#include <vector>
#include "SDL.h"
#include "Qualum.h"
#include "Rendering.h"
#include "Color.h"
#if defined(WIN32) || defined(_WIN32) || defined(__WIN32) && !defined(__CYGWIN__)
const char SLASH = '\\';
#else
const char SLASH = '/';
#endif
SDL_Window* window;
float TIME_SCALE = 4.0f;
void quit()
{
SDL_DestroyWindow(window);
SDL_Quit();
}
char* empty_string()
{
// To avoid write-string warnings
char* s = (char*)malloc(1);
*s = 0;
return s;
}
char* getdirname(char* filename)
{
// Gets, e.g. a/b/ from a/b/c.txt
char* dir = (char*)malloc(strlen(filename)+1);
strcpy(dir, filename);
char* lastSlash = strrchr(dir, SLASH);
if (lastSlash)
*(lastSlash+1) = 0;
else
return empty_string();
return dir;
}
char* getfilename(char* path)
{
char* filename = (char*)malloc(strlen(path)+1);
strcpy(filename, path);
char* lastSlash = strrchr(path, SLASH);
if (lastSlash)
return lastSlash + 1;
return filename;
}
void read_file(char* directory, char* filename, int x, int y, int speedx, int speedy)
{
// Create the qualums from the given file
// Increasing their positions by (x,y) and their speeds by (speedx, speedy)
char* path = (char*)malloc(4096); // Full path to file
sprintf(path, "%s%s", directory, filename);
FILE* input_file = fopen(path, "r"); // Skip first line
if (!input_file)
{
fprintf(stderr, "File not found: %s\n", path);
exit(1);
}
char* buffer = (char*)malloc(4096);
fgets(buffer, 4096, input_file); // Skip first line
int xrel, yrel, speedxrel, speedyrel; // Read input file
char* color_str = (char*) malloc(4096);
while (fgets(buffer, 4096, input_file))
{
buffer += strspn(buffer, " \t"); // Remove whitespace at start
if (buffer[0] == '%') // Other data (width, height, etc.)
{
continue;
}
buffer[strcspn(buffer, "#\0")] = 0;
if (sscanf(buffer, "%d %d %d %d %s", &xrel, &yrel, &speedxrel, &speedyrel, color_str) > 0)
{
if (color_str[0] == '!') // Include
{
color_str++;
char* newdir = (char*) malloc(4096);
strcpy(newdir, directory);
strcat(newdir, getdirname(color_str));
read_file(newdir, getfilename(color_str), x + xrel, y + yrel, speedx + speedxrel, speedy + speedyrel);
}
else // Color
{
Color color = Colors::read_color(color_str);
Qualum::create_qualum(x + xrel, y + yrel, color, speedx + speedxrel, speedy + speedyrel);
}
}
}
}
int main(int argc, char** argv)
{
if (argc < 2)
{
fprintf(stderr, "Error: No input file provided.\n");
return 1;
}
Qualum::initialize();
window = SDL_CreateWindow("Qualums", SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED, Rendering::WIDTH, Rendering::HEIGHT,
SDL_WINDOW_SHOWN);
SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
SDL_Event event;
bool will_quit = false;
read_file(getdirname(argv[1]), getfilename(argv[1]), 0, 0, 0, 0);
int i = 0, last_printed = -1;
while (!will_quit)
{
i++;
if (Qualum::iterations != last_printed)
{
printf("%d\n", Qualum::iterations);
last_printed = Qualum::iterations;
}
SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
SDL_RenderClear(renderer);
Qualum::update_all(i % ((int)(300/TIME_SCALE)) == 0);
Qualum::render_all(renderer);
SDL_RenderPresent(renderer);
while (SDL_PollEvent(&event))
{
switch (event.type)
{
case SDL_QUIT:
will_quit = true;
break;
case SDL_KEYDOWN:
if (event.key.keysym.sym >= SDLK_0 && event.key.keysym.sym <= SDLK_9)
{
TIME_SCALE = (float)(event.key.keysym.sym - SDLK_0);
break;
}
switch (event.key.keysym.sym)
{
case SDLK_SPACE:
Qualum::update_all(true);
break;
case SDLK_ESCAPE:
will_quit = true;
break;
}
break;
}
}
}
return 0;
}
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