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Rev | Author | Line No. | Line |
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1528 | jag | 1 | /* |
2 | * input.h |
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2302 | jag | 3 | * DIN Is Noise is copyright (c) 2006-2025 Jagannathan Sampath |
1713 | jag | 4 | * DIN Is Noise is released under GNU Public License 2.0 |
1528 | jag | 5 | * For more information, please visit https://dinisnoise.org/ |
6 | */ |
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7 | |||
8 | |||
9 | #ifndef __input |
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10 | #define __input |
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11 | |||
12 | #include "chrono.h" |
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13 | #include "log.h" |
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1916 | jag | 14 | |
1528 | jag | 15 | #include <SDL/SDL.h> |
16 | |||
17 | struct keyboard { |
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18 | |||
19 | int nkeys; // number of keys |
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20 | Uint8* now; // key state now (1 - down, 0 - up) |
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21 | Uint8* last; // last state of keys |
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22 | |||
23 | unsigned int size; |
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24 | |||
25 | double* tstamp; |
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26 | double* repeat; |
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27 | |||
28 | keyboard () { |
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29 | |||
30 | SDL_GetKeyState (&nkeys); |
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31 | |||
32 | size = nkeys * sizeof (Uint8); |
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33 | |||
34 | last = new Uint8 [nkeys]; |
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35 | memset (last, 0, size); |
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36 | |||
37 | tstamp = new double [nkeys]; |
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38 | repeat = new double [nkeys]; |
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39 | |||
40 | dlog << "+++ initialised computer keyboard input +++" << endl; |
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41 | |||
42 | } |
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43 | |||
1729 | jag | 44 | void read () { |
1528 | jag | 45 | now = SDL_GetKeyState (0); |
46 | } |
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47 | |||
48 | void save () { |
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49 | memcpy (last, now, size); |
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50 | } |
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51 | |||
52 | ~keyboard () { |
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53 | delete[] last; |
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54 | delete[] tstamp; |
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55 | delete[] repeat; |
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56 | dlog << "--- destroyed computer keyboard input ---" << endl; |
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57 | } |
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58 | |||
59 | }; |
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60 | |||
61 | extern keyboard keybd; |
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62 | |||
1592 | jag | 63 | |
1528 | jag | 64 | inline int nkeys () { |
65 | return keybd.nkeys; |
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66 | } |
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67 | |||
68 | inline int keydown (unsigned int k) { |
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69 | return keybd.now[k]; |
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70 | } |
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71 | |||
72 | inline int keyup (unsigned int k) { |
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73 | int wkd = keybd.last[k]; |
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74 | int kd = keybd.now[k]; |
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75 | return (!kd && wkd); |
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76 | } |
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77 | |||
78 | inline int waskeydown (unsigned int k) { |
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79 | return keybd.last[k]; |
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80 | } |
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81 | |||
82 | inline int keypressed (unsigned int k) { |
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83 | int wkd = waskeydown (k), kd = keydown (k); |
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84 | if (kd && !wkd) return 1; else return 0; |
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85 | } |
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86 | |||
1916 | jag | 87 | inline int keypressedd (unsigned int k, double firstt = 1./3, double constt = 1./20) { |
1528 | jag | 88 | /* keypressed with key repeat */ |
89 | int wkd = waskeydown(k), kd = keydown(k); |
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90 | if (kd) { |
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91 | if (!wkd) { |
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92 | keybd.repeat[k] = firstt + ui_clk(); |
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93 | return 1; |
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94 | } else { |
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95 | if (ui_clk() > keybd.repeat[k]) { |
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96 | keybd.repeat[k] = constt + ui_clk(); |
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97 | return 1; |
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98 | } |
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99 | } |
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1916 | jag | 100 | } |
1528 | jag | 101 | return 0; |
102 | } |
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103 | |||
104 | inline int shift_down () { |
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105 | return (keydown (SDLK_LSHIFT) || keydown (SDLK_RSHIFT)); |
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106 | } |
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107 | |||
108 | inline int ctrl_down () { |
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109 | return (keydown (SDLK_LCTRL) || keydown (SDLK_RCTRL)); |
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110 | } |
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111 | |||
112 | inline int alt_down () { |
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113 | return (keydown (SDLK_LALT) || keydown (SDLK_RALT)); |
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114 | } |
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115 | |||
116 | extern int lmb, rmb, mmb; |
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117 | extern int mousex, mousey, mouseyy; |
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118 | extern int wheel; |
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119 | extern int SHIFT, CTRL, ALT; |
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120 | #endif |