aboutsummaryrefslogtreecommitdiff
path: root/js/helper-classes/RDGE/src/core/script/runtime.js
blob: 274c1f8a9c9d3f9ac9e64da581e775d840beb19c (plain)
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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
/* <copyright>
This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
(c) Copyright 2011 Motorola Mobility, Inc.  All Rights Reserved.
</copyright> */

// RDGE namespaces
var RDGE = RDGE || {};
RDGE.core = RDGE.core || {};
RDGE.utilities = RDGE.utilities || {};

// runtime globals
RDGE.globals = (function () {
    return {
        engine: new RDGE.Engine(),
        width: 0,
        height: 0,
        cam: null,
        shaderMan: null,
        meshMan: null,
        poolList: [],
        gl: null
    };
})();

// new code is above
/***************************************************************************************************************/

/*
 *	RDGEState a RDGEstate is an interface that is defined by the user and called by the engine
 */
RDGE.core.RDGEState = function RDGEState() { };
RDGE.core.RDGEState.prototype.init = function () { };
RDGE.core.RDGEState.prototype.update = function () { };
RDGE.core.RDGEState.prototype.draw = function () { };
RDGE.core.RDGEState.prototype.resize = function () { };
RDGE.core.RDGEState.prototype.shutdown = function () { };
RDGE.core.RDGEState.prototype.onComplete = function () { };

/*
 *	Calling this makes sure the passed in run state has all the functions
 *  that are required, adding dummy functions where needed
 */
RDGE.utilities.validateUserState = function (userState) {
    if (!userState.init) {
        userState.init = function () { };
    }
    if (!userState.update) {
        userState.update = function (dt) {
            var currentScene = RDGE.globals.engine.getContext().currentScene;
            currentScene = RDGE.globals.engine.getScene(currentScene);

            if (currentScene != null)
                currentScene.update(dt);
        }
    }
    if (!userState.draw) {
        userState.draw = function () {
            var currentScene = RDGE.globals.engine.getContext().currentScene;
            currentScene = RDGE.globals.engine.getScene(currentScene);

            if (currentScene == null)
                return;

            currentScene.render();
        }
    }
    if (!userState.resize) {
        userState.resize = function () { };
    }
    if (!userState.shutdown) {
        userState.shutdown = function () { };
    }
    if (!userState.onComplete) {
        userState.onComplete = function () { };
    }
};

/*
 *	Used to start the RDGE engine, pass the initState and runState, both of which are RDGEState objects
 *	initState is used to asynchronously load scene data while allowing you to render and update if needed
 *	runState is used clear the execution path for regular rendering and updating once loading is complete
 *	@param initState	- the initialization state, false if you don't want to use one
 *	@param runState		- the run state
 */
RDGE.RDGEStart = function (canvasOrID) {
    var canvas = canvasOrID;

    if (typeof (canvasOrID) === "string")
        canvas = document.getElementById(canvasOrID);

    if (!canvas)
        return;

    RDGE.globals.engine.registerCanvas(canvas);

	if (!canvas.task)
	{
		//canvas.task = new RDGE.RDGETask(canvas, true);
		canvas.task = new RDGE.RDGETask(canvas, false);
	}

    if (!RDGE.globals.shaderMan)
        RDGE.globals.shaderMan = new RDGE.ShaderManager();

    if (!RDGE.globals.meshMan)
        RDGE.globals.meshMan = new RDGE.MeshManager();

    // start RDGE
    if (!RDGE.globals.engine.initializeComplete)
        RDGE.globals.engine.init();
};

RDGE.RDGEStop = function () { };

RDGE.RequestAnimationFrame = (function () {
    return window.requestAnimationFrame ||
            window.webkitRequestAnimationFrame ||
            window.mozRequestAnimationFrame ||
            window.oRequestAnimationFrame ||
            window.msRequestAnimationFrame ||
            function (/* function FrameRequestCallback */callback, /* DOMElement Element */element) {
                window.setTimeout(callback, 1000 / 60);
            };
})();

RDGERequestAnimationFrame = (function () {
    return window.requestAnimationFrame ||
            window.webkitRequestAnimationFrame ||
            window.mozRequestAnimationFrame ||
            window.oRequestAnimationFrame ||
            window.msRequestAnimationFrame ||
            function (/* function FrameRequestCallback */callback, /* DOMElement Element */element) {
                window.setTimeout(callback, 1000 / 60);
            };
})();

/* RDGE Task */
RDGE.RDGETask = (function () {
    var tasks = {};

    return function (canvas, startNow) {
        this.id = canvas.rdgeid;
        this.currTime = 0.0;
        this.lastTime = 0.0;
        this.running = false;
        this.context = null;

        if (!canvas) {
            return;
        }

        this.context = RDGE.globals.engine.ctxMan.handleToObject(canvas.rdgeCtxHandle);

        tasks[this.id] = function () {
            if (!self.running) {
                return;
            }

            self.currTime = new Date().getTime();
            var dt = (self.currTime - self.lastTime) / 1000.0;

            self.step(dt);

            RDGERequestAnimationFrame(tasks[self.id], canvas);

            self.lastTime = self.currTime;
        }

        this.start = function () {
            if (!this.running) {
                this.running = true;
                this.currTime = new Date().getTime();
                this.lastTime = this.currTime;
                tasks[this.id]();
            }
        }

        this.stop = function () {
            this.running = false;
        }

        this.kill = function () {
            this.running = false;
            tasks[this.id] = null;
        }

        this.step = function (dt) {
            contextManager.currentCtx = this.context;
            this.context.ctxStateManager.tick(dt);
        }

        var self = this;

        if (startNow) {
            self.start();
        }
    }
})();