After experimenting with a long running average at maxed out FPS and a variety of map sizes, 128 seems to actually be a good size to use if only drawing bits of world with stuff in it. 64 actually did even better in some situations, but significantly worse in others (lots of land, zoomed out).
/*
This is an experimental main to use with hwLibary
- create the library with `cmake . -DBUILD_ENGINE_LIBRARY=1' and `make hwengine'
- compile this file with `gcc libhwLibrary.dylib libSDLmain.a wrapper.c -o wrapper -framework Cocoa -framework SDL'
(in Mac OS X, but this command line shouldn't be much different in other OSes; make sure to set the correct files/paths)
- this executable expect a save file "Save.hws" and the data folder "Data" to be in the same launching directory
*/
#include <stdlib.h>
extern void Game (const char **);
int SDL_main (int argc, const char **argv)
{
// Note: if you get a segfault or other unexpected crashes on startup
// make sure that these arguments are up-to-date with the ones actual needed
const char **gameArgs = (const char**) malloc(sizeof(char *) * 11);
gameArgs[ 0] = "0"; //ipcPort
gameArgs[ 1] = "1024"; //cScreenWidth
gameArgs[ 2] = "768"; //cScreenHeight
gameArgs[ 3] = "0"; //cReducedQuality
gameArgs[ 4] = "en.txt"; //cLocaleFName
gameArgs[ 5] = "wrapper"; //UserNick
gameArgs[ 6] = "1"; //isSoundEnabled
gameArgs[ 7] = "1"; //isMusicEnabled
gameArgs[ 8] = "1"; //cAltDamage
gameArgs[ 9] = "0.0"; //rotationQt
gameArgs[10] = "Save.hws"; //recordFileName
Game(gameArgs);
free(gameArgs);
return 0;
}