1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
// gameDb.js
//making the gameDB.js a stateless library
.pragma library
.import QtQuick.LocalStorage 2.0 as Sql
// declaring a global variable for storing the database instance
var _db
//Opens the database connection
function openDB() {
print("gameDB.createDB()")
_db = Sql.openDatabaseSync("SpaceburgerDB","1.0","The Spaceburger Database",1000000);
createHighscoreTable();
}
//Creates the highscore table
function createHighscoreTable() {
print("gameDB.createTable()")
_db.transaction( function(tx) {
tx.executeSql("CREATE TABLE IF NOT EXISTS highscore (score INTEGER, name TEXT)");
});
}
//Reads the first 10 elements of the highscoretable and returns them as an arry
function readHighscore() {
print("gameDB.readHighscore()")
var highscoreItems = {}
_db.readTransaction( function(tx) {
var rs = tx.executeSql("SELECT name, score FROM highscore ORDER BY score DESC LIMIT 0,10");
var item
for (var i=0; i< rs.rows.length; i++) {
item = rs.rows.item(i)
highscoreItems[i] = item;
}
});
return highscoreItems;
}
//Saves an element into the highscore table
function saveHighscore(score, name) {
print("gameDB.saveHighscore()")
_db.transaction( function(tx){
tx.executeSql("INSERT INTO highscore (score, name) VALUES(?,?)",[score, name]);
});
}
|
