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annotate src/libmlk-core-js/core/js-game.c @ 355:3b2eed504c61

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js: simplify game/state mechanism
author David Demelier <markand@malikania.fr>
date Fri, 22 Oct 2021 10:19:35 +0200
parents 323d13f49233
children 26636fdb735d
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1 /*
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2 * js-game.c -- core gamej binding
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3 *
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4 * Copyright (c) 2020-2021 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
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21 #include <core/game.h>
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22
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23 #include "js-game.h"
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24 #include "js-state.h"
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25
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26 /*
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27 * TODO: determine if it's worth it to add handle, update and draw functions.
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28 */
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29
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30 static duk_ret_t
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31 Game_push(duk_context *ctx)
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32 {
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33 struct state *state = js_state_require(ctx, 0);
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34
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35 if (game.state == &game.states[GAME_STATE_MAX]) {
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36 state_finish(state);
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37 duk_error(ctx, DUK_ERR_RANGE_ERROR, "too many states");
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38 }
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39
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40 game_push(state);
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41
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42 return 0;
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43 }
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44
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45 static duk_ret_t
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46 Game_pop(duk_context *ctx)
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47 {
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48 if (game.state == &game.states[0])
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49 return 0;
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50
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51 game_pop();
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52
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53 return 0;
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54 }
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55
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56 static duk_ret_t
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57 Game_loop(duk_context *ctx)
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58 {
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59 (void)ctx;
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60
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61 game_loop();
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62
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63 return 0;
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64 }
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65
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66 static duk_ret_t
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67 Game_quit(duk_context *ctx)
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68 {
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69 (void)ctx;
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70
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71 game_quit();
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72
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73 return 0;
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74 }
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75
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76 static const duk_function_list_entry functions[] = {
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77 { "push", Game_push, 1 },
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78 { "pop", Game_pop, 0 },
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79 { "loop", Game_loop, 0 },
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80 { "quit", Game_quit, 0 },
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81 { NULL, NULL, 0 }
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82 };
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83
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84 void
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85 js_game_bind(duk_context *ctx)
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86 {
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87 assert(ctx);
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88
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89 duk_push_object(ctx);
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90 duk_put_function_list(ctx, -1, functions);
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91 duk_put_global_string(ctx, "Game");
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92 }