1 files changed, 17 insertions, 0 deletions
diff --git a/lib/physics.h b/lib/physics.h
new file mode 100644
index 0000000..7aa2b31
--- /dev/null
+++ b/lib/physics.h
@@ -0,0 +1,17 @@
+#include "types.h"
+
+struct snapshot;
+
+/* A game world */
+struct context {
+	size_t snapshots_len;
+	struct snapshot *snapshots;
+};
+
+struct context *dp_physics_context_create(size_t snapshots);
+void dp_physics_context_free(struct context *);
+
+struct snapshot *dp_physics_context_get_snapshot(struct context *);
+void dp_physics_context_return_snapshot(struct context *, struct snapshot *);
+
+int dp_physics_tick(const struct snapshot *current, double delta, struct snapshot *next);