📝 set_texture

This function sets the texture paths for the map — including the wall textures (north, south, west, east) and the color or texture values for the floor and ceiling — based on a given input line.

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⚙️ Parameters

Parameter	Type	Description
line	char *	The input line containing the texture identifier and its corresponding file path.
floor	char **	Pointer to the string that will store the floor texture or RGB value.
ceiling	char **	Pointer to the string that will store the ceiling texture or RGB value.
map	t_map *	Pointer to the map structure where the texture paths for walls are stored.

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🔁 Returns

Return value	Description
bool	Returns true if the texture or color was successfully set, or false in case of an error (invalid format, duplication, or allocation failure).

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📖 Description

The set_texture function processes an input line to extract a key-value pair that represents a texture or color definition.
It supports the following identifiers:

• "NO" → North wall texture
• "SO" → South wall texture
• "WE" → West wall texture
• "EA" → East wall texture
• "F" → Floor texture or color (RGB)
• "C" → Ceiling texture or color (RGB)

The function splits the input line by spaces using ft_split, expecting exactly two tokens:

1. The texture key (NO, SO, WE, EA, F, or C)
2. The file path or color string

If the format is invalid, if the key is unrecognized, or if the corresponding texture has already been set, the function frees any allocated memory and returns false.

Otherwise, it duplicates the texture path (or color string) and assigns it to the corresponding field in the t_map structure or the floor/ceiling pointers.

Internal Logic Summary

• Uses ft_split to divide the line into parts.
• Validates that there are exactly two arguments (key + value).
• Compares the key using ft_strncmp.
• Uses ft_strdup to assign the texture path to the appropriate field.
• Frees temporary memory free_arr before returning.

If any step fails, the function returns false.

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💡 Example Usage

t_map  map = {0};
char  *floor = NULL;
char  *ceiling = NULL;

char *line1 = "NO textures/north.png";
char *line2 = "F 220,100,0";

if (set_texture(line1, &floor, &ceiling, &map))
    printf("North texture set successfully!\n");
else
    printf("Failed to set north texture.\n");

if (set_texture(line2, &floor, &ceiling, &map))
    printf("Floor color set successfully!\n");
else
    printf("Failed to set floor color.\n");