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Adoranda/src/talkable.c

102 lines
2.5 KiB

#include <gint/display.h>
#include <gint/keyboard.h>
#include <gint/cpu.h>
#include <string.h>
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include "talkable.h"
#include "util.h"
#include "event.h"
#include "player.h"
#define LIMIT 35
struct Talkable default_value = {
.x = 0,
.y = 0,
.name = "default name",
.text = "default dialog"
};
/* Find the last word boundary between [str] and [limit]. If there is no word
boundary (ie. [limit] is in the first word of [str]), returns [limit].
This function always return a position *after* [str] so that we always make
progress and don't loop. */
char *word_boundary_before(char *str, char *limit)
{
char *s = limit;
while(s > str) {
if(isspace(*s) || !*s) return s;
s--;
}
return limit;
}
/* Skip spaces at the start of [str] */
char *skip_spaces(char *str)
{
return str + strspn(str, " \t\n");
}
/*draw the dialog of a specified talkable tile*/
void draw_dialog(struct Game *game) {
const char *delim = ";";
int direction = game->player->direction;
int dx = (direction == DIR_RIGHT) - (direction == DIR_LEFT);
int dy = (direction == DIR_DOWN) - (direction == DIR_UP);
struct Talkable *talk = get_dialog_xy(game->map, game->player->pos.x + dx, game->player->pos.y + dy);
char *str = strdup(talk->text);
char *curr_line = strtok(str, delim);
while(curr_line != NULL) {
char *event = strchr(curr_line, '~');
if(event) handle_event(game, curr_line+1);
else {
format_text(50, 58, C_BLACK, curr_line);
dprint(50,40, C_BLACK, "%s", talk->name);
dupdate();
wait_for_input(KEY_SHIFT);
}
curr_line = strtok(NULL, delim);
}
}
/*find the talkable tile using the player's position*/
struct Talkable* get_dialog_xy(struct Map *map, int x, int y) {
int i = 0;
while(i < map->dialog_count) {
if(map->dialogs[i].x == x && map->dialogs[i].y == y) return &map->dialogs[i];
i++;
}
return &default_value;
}
void format_text(int x, int y, const int color, char const *format, ...) {
int const DIALOG_WIDTH = 295, LINE_HEIGHT = 13;
extern bopti_image_t img_dialogue;
dimage(x-7,y-26,&img_dialogue);
char text_arg[512];
va_list args;
va_start(args, format);
vsnprintf(text_arg, 512, format, args);
va_end(args);
char *text = (char *)malloc(strlen(text_arg)+1);
strcpy(text,text_arg);
while(*text) {
char *end = (char *)drsize(text, NULL, DIALOG_WIDTH, NULL);
char *last_word = word_boundary_before(text, end);
dtext_opt(x, y, color, C_NONE, DTEXT_LEFT, DTEXT_TOP,
text, last_word - text);
text = skip_spaces(last_word);
y += LINE_HEIGHT;
}
}