310 lines
7.7 KiB
C
310 lines
7.7 KiB
C
/*
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glasstile.c
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Glass Tile Magic Tool Plugin
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Tux Paint - A simple drawing program for children.
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Copyright (c) 2002-2008 by Bill Kendrick and others; see AUTHORS.txt
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bill@newbreedsoftware.com
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http://www.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: July 9, 2008
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$Id$
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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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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/* Our globals: */
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static Mix_Chunk * glasstile_snd;
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Uint32 glasstile_api_version(void) { return(TP_MAGIC_API_VERSION); }
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static int * * glasstile_hit;
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static int glasstile_hit_xsize;
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static int glasstile_hit_ysize;
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// No setup required:
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int glasstile_init(magic_api * api)
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{
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char fname[1024];
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snprintf(fname, sizeof(fname), "%s/sounds/magic/glasstile.ogg",
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api->data_directory);
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glasstile_snd = Mix_LoadWAV(fname);
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glasstile_hit = NULL;
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glasstile_hit_ysize = 0;
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return(1);
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}
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// We have multiple tools:
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int glasstile_get_tool_count(magic_api * api)
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{
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return(1);
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}
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// Load our icons:
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SDL_Surface * glasstile_get_icon(magic_api * api, int which)
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{
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char fname[1024];
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snprintf(fname, sizeof(fname), "%s/images/magic/glasstile.png",
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api->data_directory);
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return(IMG_Load(fname));
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}
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// Return our names, localized:
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char * glasstile_get_name(magic_api * api, int which)
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{
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return(strdup(gettext_noop("Glass Tile")));
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}
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// Return our descriptions, localized:
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char * glasstile_get_description(magic_api * api, int which, int mode)
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{
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if (mode == MODE_PAINT)
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return(strdup(gettext_noop("Click and drag the mouse to put glass tile over your picture.")));
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else
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return(strdup(gettext_noop("Click to cover your entire picture in glass tiles.")));
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}
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// Do the effect:
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static void do_glasstile(void * ptr, int which, SDL_Surface * canvas, SDL_Surface * last,
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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, xl, xr, yt, yb;
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Uint8 r1, g1, b1,
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r2, g2, b2,
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r3, g3, b3,
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r4, g4, b4,
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r, g, b;
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Uint32 rgb;
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#define GT_SIZE 20
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if (x < 0 || y < 0 || x >= canvas->w || y >= canvas->h)
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return;
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if (glasstile_hit[y / GT_SIZE][x / GT_SIZE])
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return;
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glasstile_hit[y / GT_SIZE][x / GT_SIZE] = 1;
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/* Align mouse (x,y) to the tile shape (to avoid smearing) */
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x = ((x / (GT_SIZE * 2)) * (GT_SIZE * 2)) + (GT_SIZE / 2);
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y = ((y / (GT_SIZE * 2)) * (GT_SIZE * 2)) + (GT_SIZE / 2);
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if (api->touched(x, y))
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return;
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/* Apply the effect: */
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for (yy = -GT_SIZE; yy < GT_SIZE; yy = yy + 2)
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{
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for (xx = -GT_SIZE; xx < GT_SIZE; xx = xx + 2)
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{
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SDL_GetRGB(api->getpixel(last, x + xx, y + yy), last->format,
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&r1, &g1, &b1);
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SDL_GetRGB(api->getpixel(last, x + xx + 1, y + yy), last->format,
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&r2, &g2, &b2);
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SDL_GetRGB(api->getpixel(last, x + xx, y + yy + 1), last->format,
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&r3, &g3, &b3);
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SDL_GetRGB(api->getpixel(last, x + xx + 1, y + yy + 1), last->format,
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&r4, &g4, &b4);
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r = (r1 + r2 + r3 + r4) >> 2;
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g = (g1 + g2 + g3 + g4) >> 2;
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b = (b1 + b2 + b3 + b4) >> 2;
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if (xx <= -GT_SIZE + 2 || yy == -GT_SIZE + 2)
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{
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r = min(255, r + 64);
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g = min(255, g + 64);
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b = min(255, b + 64);
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}
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else if (xx >= GT_SIZE - 3|| yy >= GT_SIZE - 3)
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{
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r = max(0, r - 64);
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g = max(0, g - 64);
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b = max(0, b - 64);
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}
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rgb = SDL_MapRGB(canvas->format, r, g, b);
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xl = (xx / 3) - GT_SIZE + (GT_SIZE / 3);
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xr = (xx / 3) + (GT_SIZE * 2) / 3;
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yt = (yy / 3) - GT_SIZE + (GT_SIZE / 3);
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yb = (yy / 3) + (GT_SIZE * 2) / 3;
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api->putpixel(canvas, x + xl, y + yt, rgb);
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api->putpixel(canvas, x + xx / 2, y + yt, rgb);
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api->putpixel(canvas, x + xr, y + yt, rgb);
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api->putpixel(canvas, x + xl, y + yy / 2, rgb);
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api->putpixel(canvas, x + xr, y + yy / 2, rgb);
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api->putpixel(canvas, x + xl, y + yb, rgb);
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api->putpixel(canvas, x + xx / 2, y + yb, rgb);
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api->putpixel(canvas, x + xr, y + yb, rgb);
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/* Center */
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api->putpixel(canvas, x + xx / 2, y + yy / 2, rgb);
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}
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}
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}
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// Affect the canvas on drag:
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void glasstile_drag(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * last, int ox, int oy, int x, int y,
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SDL_Rect * update_rect)
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{
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api->line((void *) api, which, canvas, last, ox, oy, x, y, 1, do_glasstile);
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update_rect->x = 0;
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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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/* FIXME */
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/*
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x = ((x / (GT_SIZE * 2)) * (GT_SIZE * 2));
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y = ((y / (GT_SIZE * 2)) * (GT_SIZE * 2));
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ox = ((ox / (GT_SIZE * 2)) * (GT_SIZE * 2));
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oy = ((oy / (GT_SIZE * 2)) * (GT_SIZE * 2));
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if (ox > x) { int tmp = ox; ox = x; x = tmp; }
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if (oy > y) { int tmp = oy; oy = y; y = tmp; }
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x -= GT_SIZE * 2;
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y -= GT_SIZE * 2;
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ox += GT_SIZE * 2;
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oy += GT_SIZE * 2;
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update_rect->x = x - 1;
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update_rect->y = y - 1;
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update_rect->w = ox - update_rect->x + 1;
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update_rect->h = oy - update_rect->h + 1;
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*/
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api->playsound(glasstile_snd, (x * 255) / canvas->w, 255);
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}
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// Affect the canvas on click:
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void glasstile_click(magic_api * api, int which, int mode,
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y, SDL_Rect * update_rect)
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{
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int xx, yy;
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if (glasstile_hit == NULL)
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{
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glasstile_hit_ysize = (canvas->h / GT_SIZE) + 1;
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glasstile_hit_xsize = (canvas->w / GT_SIZE) + 1;
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glasstile_hit = (int * *) malloc(sizeof(int *) * glasstile_hit_ysize);
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for (yy = 0; yy < glasstile_hit_ysize; yy++)
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glasstile_hit[yy] = (int *) malloc(sizeof(int) * glasstile_hit_xsize);
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}
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for (yy = 0; yy < glasstile_hit_ysize; yy++)
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for (xx = 0; xx < glasstile_hit_xsize; xx++)
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glasstile_hit[yy][xx] = 0;
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if (mode == MODE_PAINT)
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glasstile_drag(api, which, canvas, last, x, y, x, y, update_rect);
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else if (mode == MODE_FULLSCREEN)
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{
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for (y = 0; y < canvas->h; y = y + GT_SIZE)
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for (x = 0; x < canvas->w; x = x + GT_SIZE)
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do_glasstile(api, which, canvas, last, x, y);
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update_rect->x = 0;
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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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/* FIXME: Play sfx */
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}
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}
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// Affect the canvas on release:
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void glasstile_release(magic_api * api, int which,
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y, SDL_Rect * update_rect)
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{
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}
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// No setup happened:
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void glasstile_shutdown(magic_api * api)
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{
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int y;
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if (glasstile_snd != NULL)
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Mix_FreeChunk(glasstile_snd);
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if (glasstile_hit != NULL)
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{
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for (y = 0; y < glasstile_hit_ysize; y++)
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{
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if (glasstile_hit[y] != NULL)
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free(glasstile_hit[y]);
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}
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free(glasstile_hit);
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}
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}
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// Record the color from Tux Paint:
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void glasstile_set_color(magic_api * api, Uint8 r, Uint8 g, Uint8 b)
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{
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}
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// Use colors:
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int glasstile_requires_colors(magic_api * api, int which)
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{
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return 0;
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}
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void glasstile_switchin(magic_api * api, int which, int mode, SDL_Surface * canvas)
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{
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}
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void glasstile_switchout(magic_api * api, int which, int mode, SDL_Surface * canvas)
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{
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}
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int glasstile_modes(magic_api * api, int which)
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{
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return(MODE_PAINT | MODE_FULLSCREEN);
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}
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