4 files changed, 24 insertions, 1 deletions
diff --git a/src/defines.h b/src/defines.h
index 52aa7b0..7698e98 100644
--- a/src/defines.h
+++ b/src/defines.h
@@ -1,6 +1,6 @@
 /**
  * @file defines.h
- * @brief
+ * @brief Typedefs for common integer/floating point types and very basic macros
  * @date 2024-02-24
  * @copyright Copyright (c) 2024
  */
diff --git a/src/logos/jobs.h b/src/logos/jobs.h
new file mode 100644
index 0000000..cc2c8fa
--- /dev/null
+++ b/src/logos/jobs.h
@@ -0,0 +1,3 @@
+/**
+  * Common jobs that get run
+*/
+\ No newline at end of file
diff --git a/src/systems/physics.c b/src/systems/physics.c
new file mode 100644
index 0000000..299c0c1
--- /dev/null
+++ b/src/systems/physics.c
@@ -0,0 +1 @@
+#include "physics.h"
+\ No newline at end of file
diff --git a/src/systems/physics.h b/src/systems/physics.h
new file mode 100644
index 0000000..17fc746
--- /dev/null
+++ b/src/systems/physics.h
@@ -0,0 +1,19 @@
+#pragma once
+
+#include "maths_types.h"
+
+// 'system' means that it gets called per frame
+
+typedef struct physics_settings {
+  f32 gravity_strength;
+} physics_settings;
+
+typedef struct physics_world {
+  physics_settings settings;
+} physics_world;
+
+physics_world physics_init(physics_settings settings);
+void physics_shutdown(physics_world* phys_world);
+
+/** @brief perform one or more simulation steps */
+void physics_system_update(physics_world* phys_world, f64 deltatime);
+\ No newline at end of file