libmach: update API, exposes init, update, and deinit functions

libmach/test.c

@@ -1,40 +1,46 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdbool.h>
 
-typedef void mach_core_callback(void*);
+typedef void resize_callback(void*, uint32_t, uint32_t);
 
 // `libmach` exported API bindings
-void mach_core_set_init(mach_core_callback);
-void mach_core_set_update(mach_core_callback);
-void mach_core_set_deinit(mach_core_callback);
-void mach_run(void);
-void core_set_should_close(void*);
-float core_delta_time(void*);
+void* mach_init_core(void);
+void mach_deinit(void*);
+void mach_set_should_close(void*);
+bool mach_window_should_close(void*);
+int mach_update(void*, resize_callback);
+float mach_delta_time(void*);
+
+void resize_fn(void* core, uint32_t width, uint32_t height) {
+  printf("Resize callback: %u %u\n", width, height);
+}
 
 static float elapsed = 0;
 
-void my_init(void* core) {
-  printf("My init!\n");
-}
-
-void my_update(void* core) {
-  float dt = core_delta_time(core);
-  if (elapsed < 1.0) {
-    elapsed += dt;
-  } else {
-    core_set_should_close(core);
-  }
-  printf("My update! total time = %f\n", elapsed);
-}
-
-void my_deinit(void* core) {
-  printf("My deinit!\n");
-}
-
 int main() {
-  mach_core_set_init(my_init);
-  mach_core_set_update(my_update);
-  mach_core_set_deinit(my_deinit);
-  mach_run();
+  void* core = mach_init_core();
+
+  if (core == 0) {
+    printf("Error instantiating mach core\n");
+    return 0;
+  }
+
+  while (!mach_window_should_close(core)) {
+    if (mach_update(core, resize_fn) == 0) {
+      printf("Error updating Mach\n");
+      break;
+    };
+
+    elapsed += mach_delta_time(core);
+    if (elapsed > 5.0) {
+      mach_set_should_close(core);
+    }
+
+    // printf("Elapsed: %f\n", elapsed);
+  }
+
+  mach_deinit(core);
+
   return 0;
 }