286 lines
9.2 KiB
C
286 lines
9.2 KiB
C
/*
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rosette.c
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Rosette Magic Tools Plugin + Picasso Magic Tools Plugin
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Tux Paint - A simple drawing program for children.
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Credits: Adam 'foo-script' Rakowski <foo-script@o2.pl>
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Copyright (c) 2002-2024 by Bill Kendrick and others; see AUTHORS.txt
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bill@newbreedsoftware.com
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https://tuxpaint.org/
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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(See COPYING.txt)
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Last updated: January 16, 2024
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*/
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// sound only plays on release
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// also same sound for both tools
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#include "tp_magic_api.h"
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#include "SDL_image.h"
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#include "SDL_mixer.h"
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#include <math.h> //for sin, cos, ...
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static int ROSETTE_R = 8; //circle's diameter
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static int xmid, ymid;
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struct rosette_rgb
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{
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Uint8 r, g, b;
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};
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struct rosette_rgb rosette_colors;
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Mix_Chunk *rosette_snd;
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// Housekeeping functions
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Uint32 rosette_api_version(void);
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void rosette_set_color(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * last, Uint8 r, Uint8 g, Uint8 b, SDL_Rect * update_rect);
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int rosette_init(magic_api * api, Uint8 disabled_features, Uint8 complexity_level);
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int rosette_get_tool_count(magic_api * api);
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SDL_Surface *rosette_get_icon(magic_api * api, int which);
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char *rosette_get_name(magic_api * api, int which);
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int rosette_get_group(magic_api * api, int which);
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int rosette_get_order(int which);
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char *rosette_get_description(magic_api * api, int which, int mode);
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int rosette_requires_colors(magic_api * api, int which);
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void rosette_release(magic_api * api, int which,
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SDL_Surface * canvas, SDL_Surface * snapshot, int x, int y, SDL_Rect * update_rect);
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void rosette_shutdown(magic_api * api);
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void rosette_draw(void *ptr, int which, SDL_Surface * canvas, SDL_Surface * snapshot, int x, int y);
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void rosette_drag(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * snapshot, int ox, int oy, int x, int y, SDL_Rect * update_rect);
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void rosette_click(magic_api * api, int which, int mode,
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SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect);
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void rosette_switchin(magic_api * api, int which, int mode, SDL_Surface * canvas);
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void rosette_switchout(magic_api * api, int which, int mode, SDL_Surface * canvas);
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int rosette_modes(magic_api * api, int which);
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void rosette_circle(void *ptr, int which, SDL_Surface * canvas, SDL_Surface * snapshot, int x, int y);
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Uint8 rosette_accepted_sizes(magic_api * api, int which, int mode);
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Uint8 rosette_default_size(magic_api * api, int which, int mode);
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void rosette_set_size(magic_api * api, int which, int mode, SDL_Surface * canvas, SDL_Surface * last, Uint8 size,
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SDL_Rect * update_rect);
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Uint32 rosette_api_version(void)
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{
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return (TP_MAGIC_API_VERSION);
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}
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void rosette_set_color(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED,
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SDL_Surface * canvas ATTRIBUTE_UNUSED, SDL_Surface * last ATTRIBUTE_UNUSED, Uint8 r, Uint8 g,
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Uint8 b, SDL_Rect * update_rect ATTRIBUTE_UNUSED)
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{
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//get the colors from API and store it in structure
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rosette_colors.r = r;
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rosette_colors.g = g;
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rosette_colors.b = b;
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}
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int rosette_init(magic_api * api, Uint8 disabled_features ATTRIBUTE_UNUSED, Uint8 complexity_level ATTRIBUTE_UNUSED)
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{
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char fname[1024];
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snprintf(fname, sizeof(fname), "%ssounds/magic/picasso.ogg", api->data_directory);
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rosette_snd = Mix_LoadWAV(fname);
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return (1);
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}
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int rosette_get_tool_count(magic_api * api ATTRIBUTE_UNUSED)
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{
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return 2;
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}
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SDL_Surface *rosette_get_icon(magic_api * api, int which)
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{
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char fname[1024];
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if (!which)
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snprintf(fname, sizeof(fname), "%simages/magic/rosette.png", api->data_directory);
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else
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snprintf(fname, sizeof(fname), "%simages/magic/picasso.png", api->data_directory);
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return (IMG_Load(fname));
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}
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char *rosette_get_name(magic_api * api ATTRIBUTE_UNUSED, int which)
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{
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if (!which)
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return strdup(gettext_noop("Rosette"));
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else
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return strdup(gettext_noop("Picasso"));
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}
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int rosette_get_group(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return MAGIC_TYPE_PATTERN_PAINTING;
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}
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int rosette_get_order(int which)
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{
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return 200 + which;
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}
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char *rosette_get_description(magic_api * api ATTRIBUTE_UNUSED, int which, int mode ATTRIBUTE_UNUSED)
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{
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if (!which)
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return strdup(gettext_noop("Click and start drawing your rosette.")); //just k'scope with 3 bits?
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else
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return strdup(gettext_noop("You can draw just like Picasso!")); //what is this actually doing?
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}
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int rosette_requires_colors(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return 1;
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}
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void rosette_release(magic_api * api ATTRIBUTE_UNUSED,
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int which ATTRIBUTE_UNUSED,
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SDL_Surface * canvas ATTRIBUTE_UNUSED,
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SDL_Surface * snapshot ATTRIBUTE_UNUSED,
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int x ATTRIBUTE_UNUSED, int y ATTRIBUTE_UNUSED, SDL_Rect * update_rect ATTRIBUTE_UNUSED)
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{
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}
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void rosette_shutdown(magic_api * api ATTRIBUTE_UNUSED)
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{
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Mix_FreeChunk(rosette_snd);
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}
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// Interactivity functions
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void rosette_circle(void *ptr, int which ATTRIBUTE_UNUSED,
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SDL_Surface * canvas, SDL_Surface * snapshot ATTRIBUTE_UNUSED, int x, int y)
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{
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magic_api *api = (magic_api *) ptr;
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int xx, yy;
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for (yy = y - ROSETTE_R; yy < y + ROSETTE_R; yy++)
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for (xx = x - ROSETTE_R; xx < x + ROSETTE_R; xx++)
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if (api->in_circle(xx - x, yy - y, ROSETTE_R / 2))
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api->putpixel(canvas, xx, yy, SDL_MapRGB(canvas->format, rosette_colors.r, rosette_colors.g, rosette_colors.b));
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}
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void rosette_draw(void *ptr, int which, SDL_Surface * canvas, SDL_Surface * snapshot, int x, int y)
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{
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magic_api *api = (magic_api *) ptr;
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double angle;
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double xx, yy; //distance to the center of the image
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int x1, y1, x2, y2;
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xx = (double)(xmid - x);
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yy = (double)(y - ymid);
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if (which == 0)
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{
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angle = 2 * M_PI / 3; //an angle between brushes
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x1 = (int)(xx * cos(angle) - yy * sin(angle));
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y1 = (int)(xx * sin(angle) + yy * cos(angle));
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x2 = (int)(xx * cos(2 * angle) - yy * sin(2 * angle));
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y2 = (int)(xx * sin(2 * angle) + yy * cos(2 * angle));
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}
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else
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{
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angle = atan(yy / xx);
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if ((xx < 0) && (yy > 0))
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angle += M_PI;
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if ((xx < 0) && (yy < 0))
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angle += M_PI;
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if ((xx > 0) && (yy < 0))
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angle += 2 * M_PI;
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if ((y == ymid) && (xx < 0))
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angle = M_PI;
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x1 = (int)(xx * cos(2 * angle) - yy * sin(2 * angle));
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y1 = (int)(xx * sin(2 * angle) - yy * cos(angle));
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x2 = (int)(xx * cos(2 * angle) - yy * sin(2 * angle));
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y2 = (int)(xx * sin(2 * angle) + yy * cos(2 * angle));
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}
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rosette_circle(api, which, canvas, snapshot, x, y);
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rosette_circle(api, which, canvas, snapshot, (-1) * (x1 - xmid), y1 + ymid);
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rosette_circle(api, which, canvas, snapshot, (-1) * (x2 - xmid), y2 + ymid);
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}
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void rosette_drag(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * snapshot, int ox, int oy, int x, int y, SDL_Rect * update_rect)
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{
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api->line((void *)api, which, canvas, snapshot, ox, oy, x, y, 1, rosette_draw);
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api->playsound(rosette_snd, (x * 255) / canvas->w, 255);
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update_rect->x = update_rect->y = 0;
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update_rect->w = canvas->w;
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update_rect->h = canvas->h;
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}
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void rosette_click(magic_api * api, int which, int mode ATTRIBUTE_UNUSED,
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SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect)
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{
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rosette_drag(api, which, canvas, last, x, y, x, y, update_rect);
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}
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void rosette_switchin(magic_api * api ATTRIBUTE_UNUSED,
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int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED)
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{
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xmid = canvas->w / 2;
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ymid = canvas->h / 2;
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}
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void rosette_switchout(magic_api * api ATTRIBUTE_UNUSED,
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int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED)
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{
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}
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int rosette_modes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return (MODE_PAINT);
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}
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Uint8 rosette_accepted_sizes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
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{
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return 4;
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}
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Uint8 rosette_default_size(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
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{
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return 1;
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}
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void rosette_set_size(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED,
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SDL_Surface * canvas ATTRIBUTE_UNUSED, SDL_Surface * last ATTRIBUTE_UNUSED, Uint8 size,
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SDL_Rect * update_rect ATTRIBUTE_UNUSED)
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{
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ROSETTE_R = (size + 2) * 2;
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}
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