/* snow.c snow, Add snow flakes or snow balls to the whole image. Tux Paint - A simple drawing program for children. Credits: Andrew Corcoran Copyright (c) 2002-2007 by Bill Kendrick and others; see AUTHORS.txt bill@newbreedsoftware.com http://www.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: June 6, 2008 $Id: snow.c,v 1.8 2009/06/24 17:29:01 secretlondon Exp $ */ #include #include #include #include "tp_magic_api.h" #include "SDL_image.h" #include "SDL_mixer.h" #include #include #include #ifndef gettext_noop #define gettext_noop(String) String #endif static const int snow_AMOUNT = 400; static const int snow_RADIUS = 5; static SDL_Surface * snow_flake1; static SDL_Surface * snow_flake2; enum { TOOL_SNOWBALL, TOOL_SNOWFLAKE, snow_NUM_TOOLS }; static Mix_Chunk * snow_snd_effect[snow_NUM_TOOLS]; const char * snow_snd_filenames[snow_NUM_TOOLS] = { "snowball.ogg", "snowflake.ogg", }; const char * snow_icon_filenames[snow_NUM_TOOLS] = { "snowball.png", "snowflake.png", }; const char * snow_names[snow_NUM_TOOLS] = { gettext_noop("Snow Ball"), gettext_noop("Snow Flake"), }; const char * snow_descs[snow_NUM_TOOLS] = { gettext_noop("Click to add snow balls to your picture."), gettext_noop("Click to add snow flakes to your picture."), }; Uint32 snow_api_version(void) { return(TP_MAGIC_API_VERSION); } //Load sounds int snow_init(magic_api * api){ int i; char fname[1024]; srand(time(0)); snprintf(fname, sizeof(fname), "%s/images/magic/Snow_flake4.png", api->data_directory); snow_flake1 = IMG_Load(fname); if (snow_flake1==NULL){ return(0); } snprintf(fname, sizeof(fname), "%s/images/magic/Snow_flake5.png", api->data_directory); snow_flake2 = IMG_Load(fname); if (snow_flake2==NULL){ return(0); } if (snow_flake2==NULL){printf("meh\n");} for (i = 0; i < snow_NUM_TOOLS; i++){ snprintf(fname, sizeof(fname), "%s/sounds/magic/%s", api->data_directory, snow_snd_filenames[i]); snow_snd_effect[i] = Mix_LoadWAV(fname); } return(1); } int snow_get_tool_count(magic_api * api){ return(snow_NUM_TOOLS); } // Load our icons: SDL_Surface * snow_get_icon(magic_api * api, int which){ char fname[1024]; snprintf(fname, sizeof(fname), "%simages/magic/%s", api->data_directory, snow_icon_filenames[which]); return(IMG_Load(fname)); } // Return our names, localized: char * snow_get_name(magic_api * api, int which){ return(strdup(gettext_noop(snow_names[which]))); } // Return our descriptions, localized: char * snow_get_description(magic_api * api, int which){ return(strdup(gettext_noop(snow_descs[which]))); } // Do the effect: static void do_snow(void * ptr,SDL_Surface * canvas, SDL_Surface * last, int which, int snowAmount){ magic_api * api = (magic_api *) ptr; int i,x,y,centre_x,centre_y; Uint8 r,g,b; SDL_Rect dest; for(i=0; iw; centre_y = rand() % canvas->h; if (which == TOOL_SNOWBALL){ for (y = -snow_RADIUS; y < snow_RADIUS; y++){ for (x= -snow_RADIUS; x < snow_RADIUS; x++){ if (api->in_circle(x ,y, snow_RADIUS)){ SDL_GetRGB(api->getpixel(last, centre_x + x, centre_y + y), last->format, &r, &g, &b); api->putpixel(canvas, centre_x + x, centre_y + y, SDL_MapRGB(canvas->format, 255, 255, 255)); } } } } if(which == TOOL_SNOWFLAKE){ dest.x = centre_x; dest.y = centre_y; if (rand()%2==0){ SDL_BlitSurface(snow_flake1, NULL, canvas, &dest); }else { SDL_BlitSurface(snow_flake2, NULL, canvas, &dest); } } } } // Affect the canvas on drag: void snow_drag(magic_api * api, int which, SDL_Surface * canvas, SDL_Surface * last, int ox, int oy, int x, int y, SDL_Rect * update_rect){ // No-op } // Affect the canvas on click: void snow_click(magic_api * api, int which, int mode, SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect){ update_rect->x = 0; update_rect->y = 0; update_rect->w = canvas->w; update_rect->h = canvas->h; do_snow(api, canvas, last, which, snow_AMOUNT); api->playsound(snow_snd_effect[which], 128, 255); } // Affect the canvas on release: void snow_release(magic_api * api, int which, SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect) { } // No setup happened: void snow_shutdown(magic_api * api) { //Clean up sounds int i; for(i=0; i