renaming base folder

1 files changed, 85 insertions, 0 deletions

diff --git a/yage/core/spritesheet.cpp b/yage/core/spritesheet.cpp
new file mode 100644
index 00000000..5c3499cc
--- /dev/null
+++ b/yage/core/spritesheet.cpp
@@ -0,0 +1,85 @@
+/* ----------------------------------------------------------------------------
+ * spritesheet.cpp
+ *
+ * Copyright (c) 2017 Yann Herklotz Grave <ymherklotz@gmail.com>
+ * MIT License, see LICENSE file for more details.
+ * ----------------------------------------------------------------------------
+ */
+
+/** @file
+ */
+
+#include "spritesheet.h"
+
+#include <cassert>
+#include <fstream>
+#include <sstream>
+#include <stdexcept>
+
+#include <rapidjson/document.h>
+#include <yage/base/imageloader.h>
+
+using namespace std;
+using namespace rapidjson;
+using namespace yage::details;
+
+namespace yage
+{
+
+SpriteSheet::SpriteSheet(string pngFileName, string jsonFileName)
+{
+    int jsonWidth, jsonHeight;
+    fileLocations_ =
+        parseJson(jsonWidth, jsonHeight, fileContent(jsonFileName));
+    texture_ = ImageLoader::loadPng(pngFileName);
+
+    if (texture_.width != jsonWidth)
+        throw runtime_error("JSON width does not match texture width");
+    if (texture_.height != jsonHeight) 
+        throw runtime_error("JSON height does not match texture height");
+}
+
+string SpriteSheet::fileContent(string jsonFileName) const
+{
+    ifstream inputFile(jsonFileName);
+
+    stringstream stream;
+    stream << inputFile.rdbuf();
+
+    return stream.str();
+}
+
+SpriteMap SpriteSheet::parseJson(int &width, int &height,
+                                 string jsonContent) const
+{
+    SpriteMap spriteMap;
+    Document jsonAtlas;
+    jsonAtlas.Parse(jsonContent.c_str());
+
+    width = jsonAtlas["width"].GetInt();
+    height = jsonAtlas["height"].GetInt();
+
+    for (auto &texture : jsonAtlas["sprites"].GetObject()) {
+        Coordinate coord;
+        for (auto &value : texture.value.GetObject()) {
+            string keyName{value.value.GetString()};
+            int keyValue{value.value.GetInt()};
+            if (keyName == "x") {
+                coord.x = keyValue;
+            } else if (keyName == "y") {
+                coord.y = keyValue;
+            } else if (keyName == "width") {
+                coord.width = keyValue;
+            } else if (keyName == "height") {
+                coord.height = keyValue;
+            } else {
+                throw runtime_error("JSON key incorrect: " + keyName);
+            }
+        }
+        spriteMap[texture.name.GetString()] = coord;
+    }
+
+    return spriteMap;
+}
+
+} // namespace yage