1 files changed, 29 insertions, 0 deletions
diff --git a/demo/source/loop.c b/demo/source/loop.c
new file mode 100644
index 0000000..003ac61
--- /dev/null
+++ b/demo/source/loop.c
@@ -0,0 +1,29 @@
+#include <agbx-demo.h>
+
+#include <agbx/key.h>
+#include <agbx/gfx.h>
+
+bool agbxd_loop(agbxd_dat * const _dat) {
+	bool err = false;
+	_dat->prevcol = 0x0u;
+	agbx_plot4(_dat->vaddr,_dat->pos.x,_dat->pos.y,0x1u);
+	for (;;) {
+		_dat->prevpos = _dat->pos;
+		agbxd_upd const upd = agbxd_chkkeys(_dat);
+		if (upd.done) {
+			err = upd.err;
+			break;
+		}
+		agbx_vsync();
+		if (upd.drw) {
+			_dat->prevcol = _dat->col;
+			if (upd.mv) {agbx_plot4(_dat->vaddr,_dat->pos.x,_dat->pos.y,_dat->col);}
+		}
+		if (upd.mv) {
+			agbx_plot4(_dat->vaddr,_dat->prevpos.x,_dat->prevpos.y,_dat->prevcol);
+			_dat->prevcol = agbx_rd4(_dat->vaddr,_dat->pos.x,_dat->pos.y);
+			agbx_plot4(_dat->vaddr,_dat->pos.x,_dat->pos.y,0x1u);
+		}
+	}
+	return err;
+}