Add tilemap.c and read map size

3 files changed, 96 insertions, 4 deletions

diff --git a/Makefile b/Makefile
index 6f4e2c8..763c897 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@ HEADERS	=	-Iinclude -Ilibft -IMLX42/include
 LIBS	=	-Llibft -lft -lm -LMLX42/build -lmlx42 -ldl -lglfw -pthread
 
 VPATH	:=	src
-SRC		=	main.c init.c loop.c input.c draw.c
+SRC		=	main.c init.c loop.c input.c draw.c tilemap.c
 
 OBJ_DIR	:=	obj
 OBJ		:=	$(addprefix $(OBJ_DIR)/, $(SRC:%.c=%.o))
diff --git a/include/so_long.h b/include/so_long.h
index d66e355..ce481ef 100644
--- a/include/so_long.h
+++ b/include/so_long.h
@@ -6,16 +6,28 @@
 /*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/05/08 14:14:02 by dkaiser           #+#    #+#             */
-/*   Updated: 2024/05/10 12:24:12 by dkaiser          ###   ########.fr       */
+/*   Updated: 2024/05/10 14:55:46 by dkaiser          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #ifndef SO_LONG_H
 # define SO_LONG_H
 
-# define PLAYER_MOVE_SPEED 250
 # include "MLX42/MLX42.h"
 # include "libft.h"
+# include "unistd.h"
+# include "fcntl.h"
+
+# define PLAYER_MOVE_SPEED 250
+
+enum			e_tile
+{
+	EMPTY = '0',
+	WALL = '1',
+	COLLECTIBLE = 'C',
+	EXIT = 'E',
+	PLAYER_START = 'P'
+};
 
 enum			e_direction
 {
@@ -32,6 +44,12 @@ typedef struct s_vector
 	double		y;
 }				t_vector;
 
+typedef struct s_ivector
+{
+	int			x;
+	int			y;
+}				t_ivector;
+
 typedef struct s_player
 {
 	t_vector	position;
@@ -40,6 +58,13 @@ typedef struct s_player
 	mlx_image_t	*img;
 }				t_player;
 
+typedef struct s_tilemap
+{
+	t_ivector	grid_size;
+	t_ivector	tile_size;
+	char		**tiles;
+}				t_tilemap;
+
 typedef struct s_game
 {
 	mlx_t		*mlx;
@@ -49,7 +74,7 @@ typedef struct s_game
 }				t_game;
 
 int				init(t_game *game);
-void			loop(void *game);
+void			loop(void *params);
 int				draw(t_game *game);
 void			on_key_input(mlx_key_data_t event, void *params);
 
diff --git a/src/tilemap.c b/src/tilemap.c
new file mode 100644
index 0000000..c0c0524
--- /dev/null
+++ b/src/tilemap.c
@@ -0,0 +1,67 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   tilemap.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/05/10 14:47:01 by dkaiser           #+#    #+#             */
+/*   Updated: 2024/05/10 15:51:50 by dkaiser          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "get_next_line.h"
+#include "so_long.h"
+
+static t_ivector	get_map_size_from_file(int fd);
+static int			get_line_len(char *line);
+
+int	load_map_from_file(t_tilemap *tilemap, char *filename)
+{
+	int	fd;
+
+	fd = open(filename, O_RDONLY);
+	if (fd < 0)
+		return (1);
+	tilemap->grid_size = get_map_size_from_file(fd);
+	close(fd);
+	if (tilemap->grid_size.x < 0 || tilemap->grid_size.y < 0)
+		return (1);
+	return (0);
+}
+
+static t_ivector	get_map_size_from_file(int fd)
+{
+	t_ivector	result;
+	char		*next_line;
+
+	result.x = 0;
+	result.y = 0;
+	next_line = get_next_line(fd);
+	while (next_line)
+	{
+		if (!result.x)
+			result.x = get_line_len(next_line);
+		else if (result.x != get_line_len(next_line))
+		{
+			free(next_line);
+			result.x = -1;
+			result.y = -1;
+			return (result);
+		}
+		result.y++;
+		free(next_line);
+		next_line = get_next_line(fd);
+	}
+	return (result);
+}
+
+static int	get_line_len(char *line)
+{
+	int	len;
+
+	len = 0;
+	while (line[len] && line[len] != '\n')
+		len++;
+	return (len);
+}