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Diffstat (limited to 'src/main.c')
| -rw-r--r-- | src/main.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/main.c b/src/main.c new file mode 100644 index 0000000..d29af30 --- /dev/null +++ b/src/main.c @@ -0,0 +1,184 @@ +/* Public domain */ +/* +* This test ensures Agar can be destroyed and re-initialized. +*/ + +#include <agar/core/core.h> +#include <agar/gui/gui.h> +#include <agar/gui/label.h> +#include <agar/gui/button.h> +#include <agar/gui/window.h> + +int pressedKey = 0; /* Last pressed key */ +int xClick = 0, yClick = 0; /* Last clicked x,y */ +int curFPS = 0; /* Measured frame rate */ +const int nominalFPS = 1000 / 30; /* Nominal frame rate */ + + /* + * Our custom event loop routine. + */ +static void +MyEventLoop(void) +{ + AG_Driver *drv; + AG_Window *win; + Uint32 t1, t2; + AG_DriverEvent dev; + + t1 = AG_GetTicks(); + for (;;) { + t2 = AG_GetTicks(); + + if (t2 - t1 >= nominalFPS) { + /* + * Case 1: Update the video display. + */ + AG_LockVFS(&agDrivers); + + /* Render the Agar windows */ + if (agDriverSw) { + /* + * We are using a single-window driver + * (e.g., sdlfb). If one of the windows is + * marked dirty, all windows must be redrawn. + */ + AG_FOREACH_WINDOW(win, agDriverSw) { + if (win->dirty) + break; + } + if (win != NULL) { + AG_BeginRendering(agDriverSw); + AG_FOREACH_WINDOW(win, agDriverSw) { + if (!win->visible) { + continue; + } + AG_ObjectLock(win); + AG_WindowDraw(win); + AG_ObjectUnlock(win); + } + AG_EndRendering(agDriverSw); + } + } + else { + /* + * We are using a multiple-window driver + * (e.g., glx). Windows marked dirty are + * redrawn. + */ + AGOBJECT_FOREACH_CHILD(drv, &agDrivers, + ag_driver) { + if (!AGDRIVER_MULTIPLE(drv)) { + continue; + } + win = AGDRIVER_MW(drv)->win; + if (!win->visible || !win->dirty) { + continue; + } + AG_BeginRendering(drv); + AG_ObjectLock(win); + AG_WindowDraw(win); + AG_ObjectUnlock(win); + AG_EndRendering(drv); + } + } + AG_UnlockVFS(&agDrivers); + + t1 = AG_GetTicks(); + curFPS = nominalFPS - (t1 - t2); + if (curFPS < 1) { curFPS = 1; } + + } + else if (AG_PendingEvents(NULL) > 0) { + /* + * Case 2: There are events waiting to be processed. + */ + do { + /* Retrieve the next queued event. */ + if (AG_GetNextEvent(NULL, &dev) == 1) { + switch (dev.type) { + case AG_DRIVER_MOUSE_BUTTON_DOWN: + xClick = dev.data.button.x; + yClick = dev.data.button.y; + printf("Click at %d,%d!\n", + dev.data.button.x, + dev.data.button.y); + break; + case AG_DRIVER_KEY_DOWN: + pressedKey = (int)dev.data.key.ks; + printf("Key down: %d (0x%x)\n", + (int)dev.data.key.ks, + (Uint)dev.data.key.ucs); + break; + default: + break; + } + + /* Forward the event to Agar. */ + if (AG_ProcessEvent(NULL, &dev) == -1) + return; + } + } while (AG_PendingEvents(NULL) > 0); + + } + else if (AG_TIMEOUTS_QUEUED()) { + /* + * Case 3: There are AG_Timeout(3) callbacks to run. + */ + AG_ProcessTimeouts(t2); + } + else { + /* + * Case 4: Nothing to do, idle. + */ + AG_Delay(1); + } + } +} + +int +main(int argc, char *argv[]) +{ + AG_Window *win; + char *driverSpec = NULL, *optArg; + int c; + + while ((c = AG_Getopt(argc, argv, "?hd:", &optArg, NULL)) != -1) { + switch (c) { + case 'd': + driverSpec = optArg; + break; + case '?': + case 'h': + default: + printf("Usage: agarevloop [-d agar-driver-spec]\n"); + return (1); + } + } + + if (AG_InitCore(NULL, 0) == -1 || + AG_InitGraphics(driverSpec) == -1) { + fprintf(stderr, "%s\n", AG_GetError()); + return (1); + } +#ifdef __APPLE__ + AG_BindGlobalKey(AG_KEY_Q, AG_KEYMOD_META, AG_QuitGUI); +#else + AG_BindGlobalKey(AG_KEY_ESCAPE, AG_KEYMOD_ANY, AG_QuitGUI); +#endif + + win = AG_WindowNew(0); + AG_WindowSetCaption(win, "Agar custom event loop demo"); + AG_LabelNewPolled(win, AG_LABEL_EXPAND, + "Testing custom event loop\n" + "Frame rate = %d\n" + "Pressed key = %d\n" + "Clicked at %d,%d\n", + &curFPS, &pressedKey, &xClick, &yClick); + AG_ButtonNewFn(win, AG_BUTTON_HFILL, "Quit", AGWINDETACH(win)); + AG_WindowSetGeometry(win, -1, -1, 300, 128); + AG_WindowShow(win); + + MyEventLoop(); + AG_Destroy(); + return (0); +}
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