1 files changed, 68 insertions, 0 deletions
diff --git a/nebu/base/system.c b/nebu/base/system.c
new file mode 100644
index 0000000..07a75e7
--- /dev/null
+++ b/nebu/base/system.c
@@ -0,0 +1,68 @@
+#include "base/nebu_system.h"
+
+#include "SDL.h"
+#include <stdio.h>
+
+Callbacks *current = 0;
+static int return_code = -1;
+static int redisplay = 0;
+
+void SystemExit() {
+  fprintf(stderr, "[system] shutting down SDL now\n");
+  SDL_Quit();
+  fprintf(stderr, "[system] exiting application\n");
+}
+
+unsigned int SystemGetElapsedTime() {
+  /* fprintf(stderr, "%d\n", SDL_GetTicks()); */
+  return SDL_GetTicks();
+}
+
+int SystemMainLoop() {
+  SDL_Event event;
+  
+	return_code = -1;
+  while(return_code == -1) {
+    while(SDL_PollEvent(&event) && current) {
+			switch(event.type) {
+			case SDL_KEYDOWN:
+			case SDL_KEYUP:
+			case SDL_JOYAXISMOTION:
+			case SDL_JOYBUTTONDOWN:
+			case SDL_JOYBUTTONUP:
+			case SDL_MOUSEBUTTONUP:
+			case SDL_MOUSEBUTTONDOWN:
+			case SDL_MOUSEMOTION:
+				SystemHandleInput(&event);
+				break;
+			case SDL_QUIT:
+				SystemExit();
+				break;
+			default:
+				/* ignore event */
+				break;
+      }
+    }
+    if(redisplay) {
+      current->display();
+      redisplay = 0;
+    } else
+      current->idle();
+  }
+	if(current->exit)
+		(current->exit)();
+	return return_code;
+}
+  
+void SystemRegisterCallbacks(Callbacks *cb) {
+  current = cb;
+}
+
+void SystemExitLoop(int value) {
+	return_code = value;
+}
+
+void SystemPostRedisplay() {
+  redisplay = 1;
+}
+