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121 lines
2.6 KiB
Plaintext
121 lines
2.6 KiB
Plaintext
/**
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* Loading XML Data
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* by Daniel Shiffman.
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*
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* This example demonstrates how to use loadJSON()
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* to retrieve data from a JSON file and make objects
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* from that data.
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*
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* Here is what the JSON looks like (partial):
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*
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{
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"bubbles": [
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{
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"position": {
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"x": 160,
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"y": 103
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},
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"diameter": 43.19838,
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"label": "Happy"
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},
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{
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"position": {
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"x": 372,
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"y": 137
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},
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"diameter": 52.42526,
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"label": "Sad"
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}
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]
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}
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*/
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// An Array of Bubble objects
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Bubble[] bubbles;
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// A JSON object
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JSONObject json;
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void setup() {
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size(640, 360);
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loadData();
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}
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void draw() {
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background(255);
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// Display all bubbles
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for (Bubble b : bubbles) {
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b.display();
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b.rollover(mouseX, mouseY);
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}
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//
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// textAlign(LEFT);
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// fill(0);
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// text("Click to add bubbles.", 10, height-10);
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}
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void loadData() {
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// Load JSON file
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String jsonString = join(loadStrings("data.json"), "\n");
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//println(jsonString);
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json = JSONObject.parse(jsonString);
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println(json);
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JSONArray bubbleData = json.getJSONArray("bubbles");
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// The size of the array of Bubble objects is determined by the total XML elements named "bubble"
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bubbles = new Bubble[bubbleData.size()];
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for (int i = 0; i < bubbleData.size(); i++) {
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/*JSONObject bubble = bubbleData.getJSONObject(i);
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JSONObject position = bubble.getJSONObject("position");
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int x = position.getInt("x");
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int y = position.getInt("y");
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float diameter = (float)bubble.getDouble("diameter");
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String label = bubble.getString("label");
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bubbles[i] = new Bubble(x, y, diameter, label);*/
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}
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}
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// Still need to work on adding and deleting
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void mousePressed() {
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// Create a new XML bubble element
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// XML bubble = xml.addChild("bubble");
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//
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// // Set the poisition element
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// XML position = bubble.addChild("position");
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// // Here we can set attributes as integers directly
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// position.setInt("x",mouseX);
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// position.setInt("y",mouseY);
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//
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// // Set the diameter element
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// XML diameter = bubble.addChild("diameter");
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// // Here for a node's content, we have to convert to a String
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// diameter.setContent("" + random(40,80));
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//
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// // Set a label
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// XML label = bubble.addChild("label");
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// label.setContent("New label");
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//
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//
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// // Here we are removing the oldest bubble if there are more than 10
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// XML[] children = xml.getChildren("bubble");
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// // If the XML file has more than 10 bubble elements
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// if (children.length > 10) {
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// // Delete the first one
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// xml.removeChild(children[0]);
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// }
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//
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// // Save a new XML file
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// saveXML(xml,"data/data.xml");
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//
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// // reload the new data
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// loadData();
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}
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