Merge pull request #66 from drmargarido/master

Loading a json file with the unmarshal function

.github/workflows/check.yml

@@ -45,6 +45,7 @@ jobs:
           odin check glfw/window $FLAGS
 
           odin check json/load_json $FLAGS
+          odin check json/load_json_unmarshal $FLAGS
           odin check json/odin_info $FLAGS
 
           odin check learn_metal/00-window $FLAGS

json/load_json_unmarshal/game_settings.json

@@ -0,0 +1,13 @@
+{
+
+  "window_width": 1920,
+  "window_height": 1080,
+  "window_title": "My Game!",
+
+  "rendering_api": "opengl",
+  "renderer_settings": {
+    "msaa": false,
+    "depth_testing": true
+  }
+
+}

json/load_json_unmarshal/load_json_unmarshal.odin

@@ -0,0 +1,39 @@
+package load_json_unmarshal
+
+import "core:os"
+import "core:fmt"
+import "core:encoding/json"
+
+Game_Settings :: struct {
+	window_width: i32,
+	window_height: i32,
+	window_title: string,
+	rendering_api: string,
+	renderer_settings: struct{
+		msaa: bool,
+		depth_testing: bool,
+	},
+}
+
+main :: proc(){
+	// Load in your json file!
+	data, ok := os.read_entire_file_from_filename("game_settings.json")
+	if !ok {
+		fmt.eprintln("Failed to load the file!")
+		return
+	}
+	defer delete(data) // Free the memory at the end
+
+	// Load data from the json bytes directly to the struct
+	settings: Game_Settings
+	unmarshal_err := json.unmarshal(data, &settings)
+	if unmarshal_err != nil {
+		fmt.eprintln("Failed to unmarshal the file!")
+		return
+	}
+	fmt.eprintf("Result %v\n", settings)
+
+	// Clear allocated strings
+	delete(settings.window_title)
+	delete(settings.rendering_api)
+}