diff --git a/engine/breeze/ai/fsm.c b/engine/breeze/ai/fsm.c
new file mode 100644
index 0000000..5740d90
--- /dev/null
+++ b/engine/breeze/ai/fsm.c
@@ -0,0 +1,8 @@
+#include "fsm.h"
+
+void bzFSMSetState(BzFSMState *state, const BzFSMState *newState, void *data) {
+    state->exit(data);
+    newState->enter(data);
+    *state = *newState;
+}
+
diff --git a/engine/breeze/ai/fsm.h b/engine/breeze/ai/fsm.h
new file mode 100644
index 0000000..92284c0
--- /dev/null
+++ b/engine/breeze/ai/fsm.h
@@ -0,0 +1,20 @@
+#ifndef BREEZE_FSM_H
+#define BREEZE_FSM_H
+
+#include "../defines.h"
+
+#define BZ_FSM_STACK_SIZE 2
+
+typedef void(*BzFSMFn)(void *data);
+
+typedef struct BzFSMState {
+    BzFSMFn enter;
+    BzFSMFn exit;
+    BzFSMFn update;
+} BzFSMState;
+
+void bzFSMSetState(BzFSMState *state, const BzFSMState *newState, void *data);
+
+
+
+#endif //BREEZE_FSM_H