6 files changed, 28 insertions, 16 deletions
diff --git a/playground/.gitignore b/playground/.gitignore
index 70dafff..81442ae 100644
--- a/playground/.gitignore
+++ b/playground/.gitignore
@@ -1,3 +1,3 @@
-/result.yaml
+/result.json
 /output.pdf
 /output.svg
diff --git a/playground/calculate.sh b/playground/calculate.sh
index 2db0ada..bff0e14 100755
--- a/playground/calculate.sh
+++ b/playground/calculate.sh
@@ -3,6 +3,6 @@
 . $(dirname -- "$0")/env.sh
 
 exec $PYTHON -m opcut calculate \
-    --params $RUN_PATH/params.yaml \
-    --result $RUN_PATH/result.yaml \
+    --params $RUN_PATH/params.json \
+    --result $RUN_PATH/result.json \
     "$@"
diff --git a/playground/generate_output.sh b/playground/generate_output.sh
index 1eaae94..0139233 100755
--- a/playground/generate_output.sh
+++ b/playground/generate_output.sh
@@ -4,6 +4,6 @@
 
 exec $PYTHON -m opcut generate_output \
     --output-type pdf \
-    --result $RUN_PATH/result.yaml \
+    --result $RUN_PATH/result.json \
     --output $RUN_PATH/output.pdf \
     "$@"
diff --git a/playground/native-calculate.sh b/playground/native-calculate.sh
new file mode 100755
index 0000000..06756ba
--- /dev/null
+++ b/playground/native-calculate.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+. $(dirname -- "$0")/env.sh
+
+exec $ROOT_PATH/build/c/opcut-calculate \
+    --method greedy \
+    --output result.json \
+    params.json
diff --git a/playground/params.json b/playground/params.json
new file mode 100644
index 0000000..789505c
--- /dev/null
+++ b/playground/params.json
@@ -0,0 +1,16 @@
+{
+    "cut_width": 1,
+    "panels": {
+        "p1": {
+            "width": 50,
+            "height": 50
+        }
+    },
+    "items": {
+        "i1": {
+            "width": 5,
+            "height": 5,
+            "can_rotate": true
+        }
+    }
+}
diff --git a/playground/params.yaml b/playground/params.yaml
deleted file mode 100644
index 605acec..0000000
--- a/playground/params.yaml
+++ /dev/null
@@ -1,12 +0,0 @@
----
-cut_width: 1
-panels:
-    p1:
-        width: 50
-        height: 50
-items:
-    i1:
-        width: 5
-        height: 5
-        can_rotate: true
-...