Mercurial > molko
diff src/libmlk-core/core/script.c @ 320:8f9937403749
misc: improve loading of data
author | David Demelier <markand@malikania.fr> |
---|---|
date | Fri, 01 Oct 2021 20:30:00 +0200 |
parents | libmlk-core/core/script.c@d01e83210ca2 |
children | 460c78706989 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/libmlk-core/core/script.c Fri Oct 01 20:30:00 2021 +0200 @@ -0,0 +1,154 @@ +/* + * script.c -- convenient sequence of actions + * + * Copyright (c) 2020-2021 David Demelier <markand@malikania.fr> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include "action.h" +#include "error.h" +#include "script.h" + +static struct action * +current(struct script *s) +{ + if (s->cur >= s->actionsz) + return NULL; + + return s->actions[s->cur]; +} + +static void +handle(struct action *a, const union event *ev) +{ + script_handle(a->data, ev); +} + +static int +update(struct action *a, unsigned int ticks) +{ + return script_update(a->data, ticks); +} + +static void +draw(struct action *a) +{ + script_draw(a->data); +} + +static void +finish(struct action *a) +{ + script_finish(a->data); +} + +void +script_init(struct script *s) +{ + assert(s); + + memset(s, 0, sizeof (*s)); +} + +int +script_append(struct script *s, struct action *a) +{ + assert(s); + assert(a); + + if (s->actionsz >= SCRIPT_ACTION_MAX) + return errorf("script is full"); + + s->actions[s->actionsz++] = a; + + return 0; +} + +void +script_handle(struct script *s, const union event *ev) +{ + assert(s); + assert(ev); + + struct action *a = current(s); + + if (a) + action_handle(a, ev); +} + +int +script_update(struct script *s, unsigned int ticks) +{ + assert(s); + + struct action *a = current(s); + + if (!a) + return 1; + + if (action_update(a, ticks)) { + action_end(a); + s->cur++; + } + + return s->cur >= s->actionsz; +} + +void +script_draw(struct script *s) +{ + assert(s); + + struct action *a = current(s); + + if (a) + action_draw(a); +} + +int +script_completed(const struct script *s) +{ + assert(s); + + return s->cur >= s->actionsz; +} + +void +script_finish(struct script *s) +{ + assert(s); + + for (size_t i = 0; i < s->actionsz; ++i) + action_finish(s->actions[i]); + + memset(s, 0, sizeof (*s)); +} + +void +script_action(struct script *s, struct action *action) +{ + assert(s); + assert(action); + + memset(action, 0, sizeof (*action)); + action->data = s; + action->handle = handle; + action->update = update; + action->draw = draw; + action->finish = finish; +}