WIP Ribbon magic tool
Will add in 0.9.31, but stowing in git in the meantime.
This commit is contained in:
Bill Kendrick
parent
eb8f4be7fd
commit
56a921b4ee
1 changed files with 278 additions and 0 deletions
278
magic/src/WIP/ribbon.c
Normal file
278
magic/src/WIP/ribbon.c
Normal file
|
|
@ -0,0 +1,278 @@
|
|||
/*
|
||||
ribbon.c
|
||||
|
||||
Ribbon Magic Tool Plugin
|
||||
Tux Paint - A simple drawing program for children.
|
||||
|
||||
Copyright (c) 2023-2023 by Bill Kendrick and others; see AUTHORS.txt
|
||||
bill@newbreedsoftware.com
|
||||
https://tuxpaint.org/
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
(See COPYING.txt)
|
||||
|
||||
Last updated: May 15, 2023
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include "tp_magic_api.h"
|
||||
#include "SDL_image.h"
|
||||
#include "SDL_mixer.h"
|
||||
|
||||
/* Our globals: */
|
||||
|
||||
#define MAX_LENGTH 256
|
||||
#define NUM_LENGTH_OPTIONS 4
|
||||
|
||||
#define ribbon_radius 8
|
||||
|
||||
static int ribbon_max_length = (MAX_LENGTH / 2);
|
||||
static Uint8 ribbon_r, ribbon_g, ribbon_b;
|
||||
static Uint32 ribbon_segment_color;
|
||||
static int ribbon_x[MAX_LENGTH], ribbon_y[MAX_LENGTH];
|
||||
static int ribbon_tail = 0, ribbon_head = 0;
|
||||
static Mix_Chunk *ribbon_snd;
|
||||
|
||||
int ribbon_init(magic_api * api, Uint32 disabled_features);
|
||||
Uint32 ribbon_api_version(void);
|
||||
int ribbon_get_tool_count(magic_api * api);
|
||||
SDL_Surface *ribbon_get_icon(magic_api * api, int which);
|
||||
char *ribbon_get_name(magic_api * api, int which);
|
||||
int ribbon_get_group(magic_api * api, int which);
|
||||
char *ribbon_get_description(magic_api * api, int which, int mode);
|
||||
static void ribbon_linecb(void *ptr, int which, SDL_Surface * canvas, SDL_Surface * last, int x, int y);
|
||||
|
||||
void ribbon_drag(magic_api * api, int which, SDL_Surface * canvas,
|
||||
SDL_Surface * last, int ox, int oy, int x, int y, SDL_Rect * update_rect);
|
||||
|
||||
void ribbon_click(magic_api * api, int which, int mode,
|
||||
SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect);
|
||||
|
||||
void ribbon_release(magic_api * api, int which,
|
||||
SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect);
|
||||
|
||||
|
||||
void ribbon_shutdown(magic_api * api);
|
||||
void ribbon_set_color(magic_api * api, int which, SDL_Surface * canvas,
|
||||
SDL_Surface * last, Uint8 r, Uint8 g, Uint8 b, SDL_Rect * update_rect);
|
||||
int ribbon_requires_colors(magic_api * api, int which);
|
||||
void ribbon_switchin(magic_api * api, int which, int mode, SDL_Surface * canvas);
|
||||
void ribbon_switchout(magic_api * api, int which, int mode, SDL_Surface * canvas);
|
||||
int ribbon_modes(magic_api * api, int which);
|
||||
Uint8 ribbon_accepted_sizes(magic_api * api, int which, int mode);
|
||||
Uint8 ribbon_default_size(magic_api * api, int which, int mode);
|
||||
void ribbon_set_size(magic_api * api, int which, int mode, SDL_Surface * canvas, SDL_Surface * last, Uint8 size,
|
||||
SDL_Rect * update_rect);
|
||||
|
||||
|
||||
Uint32 ribbon_api_version(void)
|
||||
{
|
||||
return (TP_MAGIC_API_VERSION);
|
||||
}
|
||||
|
||||
// Load our sfx:
|
||||
int ribbon_init(magic_api * api, Uint32 disabled_features ATTRIBUTE_UNUSED)
|
||||
{
|
||||
char fname[1024];
|
||||
|
||||
snprintf(fname, sizeof(fname), "%ssounds/magic/rainbow.wav", api->data_directory); // FIXME
|
||||
ribbon_snd = Mix_LoadWAV(fname);
|
||||
|
||||
return (1);
|
||||
}
|
||||
|
||||
// We have multiple tools:
|
||||
int ribbon_get_tool_count(magic_api * api ATTRIBUTE_UNUSED)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
// Load our icons:
|
||||
SDL_Surface *ribbon_get_icon(magic_api * api, int which ATTRIBUTE_UNUSED)
|
||||
{
|
||||
char fname[1024];
|
||||
|
||||
snprintf(fname, sizeof(fname), "%simages/magic/rainbow.png", api->data_directory); // FIXME
|
||||
|
||||
return (IMG_Load(fname));
|
||||
}
|
||||
|
||||
// Return our names, localized:
|
||||
char *ribbon_get_name(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
|
||||
{
|
||||
return (strdup(gettext_noop("Ribbon")));
|
||||
}
|
||||
|
||||
// Return our group:
|
||||
int ribbon_get_group(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
|
||||
{
|
||||
return MAGIC_TYPE_PAINTING;
|
||||
}
|
||||
|
||||
// Return our descriptions, localized:
|
||||
char *ribbon_get_description(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
|
||||
{
|
||||
return (strdup(gettext_noop("Add a flowing ribbon to your picture.")));
|
||||
}
|
||||
|
||||
// Do the effect:
|
||||
|
||||
static void ribbon_linecb(void *ptr, int which ATTRIBUTE_UNUSED,
|
||||
SDL_Surface * canvas, SDL_Surface * last ATTRIBUTE_UNUSED, int x, int y)
|
||||
{
|
||||
magic_api *api = (magic_api *) ptr;
|
||||
int i;
|
||||
|
||||
for (i = - ribbon_radius; i < ribbon_radius; i++)
|
||||
{
|
||||
api->putpixel(canvas, x + i, y + i, ribbon_segment_color);
|
||||
api->putpixel(canvas, x + i, y + i + 1, ribbon_segment_color);
|
||||
api->putpixel(canvas, x + i + 1, y + i, ribbon_segment_color);
|
||||
}
|
||||
}
|
||||
|
||||
// Affect the canvas on drag:
|
||||
void ribbon_drag(magic_api * api, int which, SDL_Surface * canvas,
|
||||
SDL_Surface * last, int ox, int oy, int x, int y, SDL_Rect * update_rect)
|
||||
{
|
||||
int pt, pt2, first_click;
|
||||
Uint8 r, g, b;
|
||||
int angle;
|
||||
|
||||
SDL_BlitSurface(last, NULL, canvas, NULL);
|
||||
|
||||
ribbon_x[ribbon_head] = x;
|
||||
ribbon_y[ribbon_head] = y;
|
||||
|
||||
first_click = (ribbon_head == 0 && ribbon_tail == 0);
|
||||
|
||||
ribbon_head = (ribbon_head + 1) % ribbon_max_length;
|
||||
|
||||
if (ribbon_head == ribbon_tail)
|
||||
ribbon_tail = (ribbon_tail + 1) % ribbon_max_length;
|
||||
|
||||
if (!first_click) {
|
||||
pt = ribbon_tail;
|
||||
angle = 0.0;
|
||||
do {
|
||||
double x_angle;
|
||||
int brt;
|
||||
|
||||
pt2 = ((pt + 1) % ribbon_max_length);
|
||||
ox = ribbon_x[pt];
|
||||
oy = ribbon_y[pt];
|
||||
x = ribbon_x[pt2];
|
||||
y = ribbon_y[pt2];
|
||||
|
||||
x_angle = (fabs(atan2((double)(y - oy), (double)(x - ox))) * 2.0);
|
||||
if (pt == ribbon_tail)
|
||||
angle = x_angle;
|
||||
else
|
||||
angle = (angle + x_angle) / 2.0;
|
||||
|
||||
brt = ((angle - (M_PI / 4)) * 128.0) / M_PI;
|
||||
|
||||
r = max(min(ribbon_r + brt, 255), 0);
|
||||
g = max(min(ribbon_g + brt, 255), 0);
|
||||
b = max(min(ribbon_b + brt, 255), 0);
|
||||
// b = (Uint8) (((double) ribbon_b * angle) / M_PI);
|
||||
|
||||
ribbon_segment_color = SDL_MapRGB(canvas->format, r, g, b);
|
||||
api->line((void *)api, which, canvas, last, ox, oy, x, y, 1, ribbon_linecb);
|
||||
pt = pt2;
|
||||
} while (((pt + 1) % ribbon_max_length) != ribbon_head);
|
||||
}
|
||||
|
||||
update_rect->x = 0;
|
||||
update_rect->y = 0;
|
||||
update_rect->w = canvas->w;
|
||||
update_rect->h = canvas->h;
|
||||
|
||||
api->playsound(ribbon_snd, (x * 255) / canvas->w, 255);
|
||||
}
|
||||
|
||||
// Affect the canvas on click:
|
||||
void ribbon_click(magic_api * api, int which, int mode ATTRIBUTE_UNUSED,
|
||||
SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect)
|
||||
{
|
||||
ribbon_head = ribbon_tail = 0;
|
||||
ribbon_drag(api, which, canvas, last, x, y, x, y, update_rect);
|
||||
}
|
||||
|
||||
void ribbon_release(magic_api * api ATTRIBUTE_UNUSED,
|
||||
int which ATTRIBUTE_UNUSED,
|
||||
SDL_Surface * canvas ATTRIBUTE_UNUSED,
|
||||
SDL_Surface * last ATTRIBUTE_UNUSED,
|
||||
int x ATTRIBUTE_UNUSED, int y ATTRIBUTE_UNUSED, SDL_Rect * update_rect ATTRIBUTE_UNUSED)
|
||||
{
|
||||
}
|
||||
|
||||
// Clean up
|
||||
void ribbon_shutdown(magic_api * api ATTRIBUTE_UNUSED)
|
||||
{
|
||||
if (ribbon_snd != NULL)
|
||||
Mix_FreeChunk(ribbon_snd);
|
||||
}
|
||||
|
||||
// Record the color from Tux Paint:
|
||||
void ribbon_set_color(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED,
|
||||
SDL_Surface * canvas ATTRIBUTE_UNUSED, SDL_Surface * last ATTRIBUTE_UNUSED,
|
||||
Uint8 r, Uint8 g, Uint8 b,
|
||||
SDL_Rect * update_rect ATTRIBUTE_UNUSED)
|
||||
{
|
||||
ribbon_r = r;
|
||||
ribbon_g = g;
|
||||
ribbon_b = b;
|
||||
}
|
||||
|
||||
// Use colors:
|
||||
int ribbon_requires_colors(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
void ribbon_switchin(magic_api * api ATTRIBUTE_UNUSED,
|
||||
int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED)
|
||||
{
|
||||
}
|
||||
|
||||
void ribbon_switchout(magic_api * api ATTRIBUTE_UNUSED,
|
||||
int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED)
|
||||
{
|
||||
}
|
||||
|
||||
int ribbon_modes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
|
||||
{
|
||||
return (MODE_PAINT);
|
||||
}
|
||||
|
||||
|
||||
Uint8 ribbon_accepted_sizes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
|
||||
{
|
||||
return NUM_LENGTH_OPTIONS;
|
||||
}
|
||||
|
||||
Uint8 ribbon_default_size(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
|
||||
{
|
||||
return (NUM_LENGTH_OPTIONS / 2);
|
||||
}
|
||||
|
||||
void ribbon_set_size(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED,
|
||||
SDL_Surface * canvas ATTRIBUTE_UNUSED, SDL_Surface * last ATTRIBUTE_UNUSED, Uint8 size,
|
||||
SDL_Rect * update_rect ATTRIBUTE_UNUSED)
|
||||
{
|
||||
ribbon_max_length = (size * MAX_LENGTH) / NUM_LENGTH_OPTIONS;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue