Mercurial > molko
annotate libmlk-core/mlk/core/action-script.c @ 634:3930234ab1f5
examples: add basic gamepad
author | David Demelier <markand@malikania.fr> |
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date | Tue, 29 Aug 2023 13:34:10 +0200 |
parents | 4349b591c3ac |
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1 /* |
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2 * action-script.c -- convenient sequence of actions |
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3 * |
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4 * Copyright (c) 2020-2023 David Demelier <markand@malikania.fr> |
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5 * |
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6 * Permission to use, copy, modify, and/or distribute this software for any |
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7 * purpose with or without fee is hereby granted, provided that the above |
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8 * copyright notice and this permission notice appear in all copies. |
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9 * |
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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17 */ |
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18 |
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19 #include <assert.h> |
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20 #include <stdlib.h> |
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21 #include <string.h> |
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22 |
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23 #include "action-script.h" |
586 | 24 #include "core_p.h" |
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25 #include "action.h" |
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26 #include "err.h" |
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27 |
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28 static inline struct mlk_action * |
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29 current(struct mlk_action_script *s) |
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30 { |
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31 if (s->current >= s->length) |
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32 return NULL; |
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33 |
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34 return s->actions[s->current]; |
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35 } |
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36 |
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37 void |
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38 mlk_action_script_init(struct mlk_action_script *s) |
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39 { |
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40 assert(s); |
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41 |
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42 for (size_t i = 0; i < s->actionsz; ++i) |
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43 s->actions[i] = NULL; |
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44 } |
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45 |
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46 int |
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47 mlk_action_script_append(struct mlk_action_script *s, struct mlk_action *a) |
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48 { |
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49 assert(s); |
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50 assert(a); |
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51 |
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52 if (s->length >= s->actionsz) |
586 | 53 return mlk_errf(_("no space in action script")); |
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54 |
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55 s->actions[s->length++] = a; |
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56 |
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57 return 0; |
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58 } |
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59 |
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60 void |
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61 mlk_action_script_start(struct mlk_action_script *s) |
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62 { |
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63 assert(s); |
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64 |
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65 struct mlk_action *a; |
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66 |
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67 if ((a = current(s))) |
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68 mlk_action_start(a); |
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69 } |
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70 |
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71 void |
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72 mlk_action_script_handle(struct mlk_action_script *s, const union mlk_event *ev) |
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73 { |
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74 assert(s); |
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75 assert(ev); |
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76 |
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77 struct mlk_action *a; |
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78 |
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79 if ((a = current(s))) |
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80 mlk_action_handle(a, ev); |
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81 } |
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82 |
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83 int |
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84 mlk_action_script_update(struct mlk_action_script *s, unsigned int ticks) |
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85 { |
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86 assert(s); |
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87 |
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88 struct mlk_action *a; |
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89 |
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90 /* No action left means completed. */ |
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91 if (!(a = current(s))) |
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92 return 1; |
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93 |
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94 if (mlk_action_update(a, ticks)) { |
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95 mlk_action_end(a); |
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96 s->current++; |
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97 |
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98 /* Start this action now. */ |
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99 if ((a = current(s))) |
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100 mlk_action_start(a); |
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101 } |
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102 |
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103 return s->current >= s->length; |
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104 } |
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105 |
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106 void |
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107 mlk_action_script_draw(struct mlk_action_script *s) |
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108 { |
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109 assert(s); |
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110 |
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111 struct mlk_action *a; |
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112 |
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113 if ((a = current(s))) |
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114 mlk_action_draw(a); |
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115 } |
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116 |
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117 int |
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118 mlk_action_script_completed(const struct mlk_action_script *s) |
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119 { |
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120 assert(s); |
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121 |
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122 return s->current >= s->length; |
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123 } |
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124 |
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125 void |
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126 mlk_action_script_finish(struct mlk_action_script *s) |
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127 { |
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128 assert(s); |
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129 |
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130 for (size_t i = 0; i < s->actionsz; ++i) { |
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131 if (i < s->length) |
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132 mlk_action_finish(s->actions[i]); |
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133 |
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134 s->actions[i] = NULL; |
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135 } |
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136 |
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137 s->length = s->current = 0; |
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138 } |