start spitballing physics

2 files changed, 20 insertions, 0 deletions

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"
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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);
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