Mercurial > molko
diff librpg/rpg/battle-state-opening.c @ 192:4ad7420ab678
rpg: add minimalist battle system, continue #2477 @60h
- Implement battle as states,
- Add basic support for spells (no calculation yet),
- Add won/lost state,
- Add animations and messages,
- Add order.
author | David Demelier <markand@malikania.fr> |
---|---|
date | Sat, 07 Nov 2020 16:00:39 +0100 |
parents | |
children | d51d9c0c2186 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/librpg/rpg/battle-state-opening.c Sat Nov 07 16:00:39 2020 +0100 @@ -0,0 +1,101 @@ +/* + * battle-state-opening.c -- battle state (opening) + * + * Copyright (c) 2020 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 <stdbool.h> +#include <stdlib.h> + +#include <core/alloc.h> +#include <core/painter.h> +#include <core/panic.h> +#include <core/window.h> + +#include "battle.h" +#include "battle-state.h" +#include "battle-state-opening.h" +#include "battle-state-menu.h" + +#define DELAY (1000U) + +struct opening { + struct battle_state self; + unsigned int elapsed; +}; + +static bool +update(struct battle_state *st, struct battle *bt, unsigned int ticks) +{ + assert(bt); + + struct opening *opening = st->data; + + opening->elapsed += ticks; + + /* + * Those function will effectively change state accordingly to the + * order of playing. + */ + if (opening->elapsed >= DELAY) { + battle_order(bt); + battle_next(bt); + } + + return false; +} + +static void +draw(const struct battle_state *st, const struct battle *bt) +{ + assert(bt); + + const struct opening *opening = st->data; + const unsigned int w = window.w; + const unsigned int h = window.h / 2; + const unsigned int ch = opening->elapsed * h / DELAY; + + /* Draw some bezels opening. */ + painter_set_color(0x000000ff); + painter_draw_rectangle(0, 0, w, h - ch); + painter_draw_rectangle(0, h + ch, w, h - ch); +} + +static void +finish(struct battle_state *st, struct battle *bt) +{ + (void)bt; + + free(st); +} + +void +battle_state_opening(struct battle *bt) +{ + assert(bt); + + struct opening *opening; + + if (!(opening = alloc_zero(1, sizeof (*opening)))) + panic(); + + opening->self.data = opening; + opening->self.update = update; + opening->self.draw = draw; + opening->self.finish = finish; + + battle_switch(bt, &opening->self); +}