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Repository creation. committer: Diggory Hardy <diggory.hardy@gmail.com>
author Diggory Hardy <diggory.hardy@gmail.com>
date Sat, 27 Oct 2007 18:05:39 +0100
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children 78eb491bd642
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-1:000000000000 0:d547009c104c
1 /// This module contains the core (i.e. common part) of the input system.
2 module mde.input.core;
3 /+
4 alias Exception InputException; // this can be expanded to a custom class if needed
5 typedef uint index_t;
6 struct RelPair {
7 real x, y;
8 static RelPair opCall (real a, real b) {
9 RelPair ret;
10 ret.x = a; ret.y = b;
11 return ret;
12 }
13 }
14
15 /* Note: We really want an array, not a stack. We cannot edit these lists, so we can either
16 * copy the stack or just iterate through it as an array.
17 */
18 typedef uint[] outQueue; /// This is the type for the out queue config data.
19 struct readOutQueue { /// A convenient structure for reading an outQueue item by item.
20 private outQueue _q; // the queue, stored by reference to the original
21 private uint p = 0; // current read position (start at beginning)
22
23 static readOutQueue (outQueue q) { /// Static constructor
24 readOutQueue ret;
25 ret._q = q;
26 return ret;
27 }
28 uint next () { /// Get the next element. Throws an exception if there isn't another.
29 if (p >= _q.length())
30 throw new InputException ("Input: Invalid configuration: incomplete config stack");
31 uint ret = _q[p];
32 ++p;
33 return ret;
34 }
35 }
36 /+
37 struct out_stack { // a remove-only stack with exception throwing
38 uint[] _data;
39
40 static out_stack opCall (uint[] d) {
41 out_stack ret;
42 ret._data = d;
43 return ret;
44 }
45 uint pop () {
46 if (_data.length < 1)
47 throw new InputException ("Input: Invalid configuration: incomplete config stack");
48 uint a = _data[length - 1];
49 _data.length = _data.length - 1;
50 return a;
51 }
52 }
53 +/
54
55 bool[index_t] b_tbl; /// Table of button states
56 real[index_t] axis_tbl; /// Table of axes states
57 uint mouse_x, mouse_y; /// Current screen coords of the mouse
58 // FIXME: these need to be reset after every access:
59 RelPair[index_t] axis_rel_tbl; /// Table of relative mouse / joystick ball motions
60 +/