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annotate src/game.c @ 49:a8c7db56ccb0

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core: backed out changeset 55869b5e4761 We don't need properties because we will generate them in the map.
author David Demelier <markand@malikania.fr>
date Fri, 17 Jan 2020 12:09:30 +0100
parents e10fd1b6323f
children 9f6267843815
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1 /*
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2 * game.c -- main game object
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3 *
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4 * Copyright (c) 2020 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>
44
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20 #include <stddef.h>
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21
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22 #include "game.h"
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23 #include "state.h"
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24
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25 struct game game = {
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26 .state = NULL,
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27 .state_next = NULL
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28 };
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29
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30 void
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31 game_switch(struct state *state)
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32 {
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33 assert(state);
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34
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35 game.state_next = state;
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36 }
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37
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38 void
44
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39 game_handle(const union event *event)
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40 {
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41 if (game.state)
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42 game.state->handle(event);
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43 }
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44
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45 void
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46 game_update(unsigned int ticks)
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47 {
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48 /* Change state if any. */
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49 if (game.state_next) {
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50 /* Inform the current state we're gonna leave it. */
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51 if (game.state)
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52 game.state->leave();
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53
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54 game.state = game.state_next;
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55 game.state->enter();
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56 game.state_next = NULL;
44
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57 }
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58
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59 if (game.state)
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60 game.state->update(ticks);
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61 }
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62
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63 void
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64 game_draw(void)
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65 {
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66 if (game.state)
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67 game.state->draw();
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68 }