fdf_mlx.c File Reference

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   fdf_mlx.c                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tgrekov <tgrekov@student.hive.fi>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/06/13 07:32:01 by tgrekov           #+#    #+#             */
/*   Updated: 2024/06/24 08:50:27 by tgrekov          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 

Definition in file fdf_mlx.c.

#include <stdlib.h>
#include <MLX42.h>
#include <ft_printf.h>
#include "../fdf.h"
#include "map.h"

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Functions
void	draw_line (mlx_image_t *img, int x1, int y1, int *p2)
	Multi-directional implementation of the Bresenham incremental error line drawing algorithm.
int	project_map (t_map map, int *size)
	Project map and attempt to automatically scale to viewport.
static void	keyhook (mlx_key_data_t key_data, void *arg)
	Runs when a key is pressed to check whether the escape key was used, so the window can be closed.
static void	lines_from_point (mlx_image_t *img, t_map map, int x, int y)
	Checks if adjacent points are available, and draws lines to them.
static void	fdf_row (void *data)
	Draw rows in between frames if the image isn't complete.
static int	fdf_mlx (mlx_t *mlx, t_loop_data d, int *size)
	Bulk of mlx functions used in fdf, to set up the key press and drawing hooks, set up the image, start the rendering, etc.
int	fdf (t_map map)
	Initialize mlx, run map projection and scaling, execute mlx, and cleanup.

Function Documentation

draw_line()

void draw_line	(	mlx_image_t *	img,
		int	x1,
		int	y1,
		int *	p2
	)

Multi-directional implementation of the Bresenham incremental error line drawing algorithm.

Parameters

img	Mlx image pointer
x1	Starting x position
y1	Starting y position
p2	Ending [x, y] position

Definition at line 32 of file draw_line.c.

References abs(), and err().

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fdf()

int fdf

(

t_map

map

)

Initialize mlx, run map projection and scaling, execute mlx, and cleanup.

Parameters

map

Return values

int	Exit status, 0 on success

Definition at line 131 of file fdf_mlx.c.

References fdf_mlx(), ft_printf(), s_loop_data::map, and project_map().

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fdf_mlx()

static int fdf_mlx ( mlx_t *  mlx, t_loop_data  d, int *  size  )

static

Bulk of mlx functions used in fdf, to set up the key press and drawing hooks, set up the image, start the rendering, etc.

Parameters

mlx
d
size	Window size to resize to

Return values

int

Definition at line 96 of file fdf_mlx.c.

References fdf_row(), ft_printf(), s_loop_data::img, keyhook(), and s_loop_data::y.

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fdf_row()

static void fdf_row ( void *  data )

static

Draw rows in between frames if the image isn't complete.

Parameters

data

loop data

Definition at line 68 of file fdf_mlx.c.

References s_map::height, s_loop_data::img, lines_from_point(), s_loop_data::map, and s_loop_data::y.

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keyhook()

static void keyhook ( mlx_key_data_t  key_data, void *  arg  )

static

Runs when a key is pressed to check whether the escape key was used, so the window can be closed.

Parameters

key_data
arg	Mlx instance pointer

Definition at line 36 of file fdf_mlx.c.

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lines_from_point()

static void lines_from_point ( mlx_image_t *  img, t_map  map, int  x, int  y  )

static

Checks if adjacent points are available, and draws lines to them.

Parameters

img	Mlx image pointer
map
x
y

Definition at line 51 of file fdf_mlx.c.

References draw_line(), s_map::height, s_map::point, s_point::projected, and s_map::width.

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project_map()

int project_map	(	t_map	map,
		int *	size
	)

Project map and attempt to automatically scale to viewport.

Parameters

map
size

Return values

int	0 if scaling was successful, 1 if map was too large

Definition at line 121 of file project_map.c.

References calc_size(), s_map::height, project(), and s_map::width.

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