Converted Blocks, Chalk, Drip, Blur, Bricks, Cartoon, Drip, Fill, Grass,

Rainbow, Smudge and Tint Magic tools to plugins.
2007-07-06 19:35:32 +00:00 · 2007-07-06 19:35:32 +00:00 · 2d4eee798f
commit 2d4eee798f
parent 535220e921
10 changed files with 1793 additions and 0 deletions
--- a/magic/src/smudge.c
+++ b/magic/src/smudge.c
@ -0,0 +1,127 @@
+#include <stdio.h>
+#include <string.h>
+#include <libintl.h>
+#include "tp_magic_api.h"
+#include "SDL_image.h"
+#include "SDL_mixer.h"
+
+/* Our globals: */
+
+Mix_Chunk * smudge_snd;
+
+
+
+// No setup required:
+int smudge_init(magic_api * api)
+{
+  char fname[1024];
+
+  snprintf(fname, sizeof(fname), "%s/sounds/magic/smudge.wav",
+	    api->data_directory);
+  smudge_snd = Mix_LoadWAV(fname);
+
+  return(1);
+}
+
+// We have multiple tools:
+int smudge_get_tool_count(magic_api * api)
+{
+  return(1);
+}
+
+// Load our icons:
+SDL_Surface * smudge_get_icon(magic_api * api, int which)
+{
+  char fname[1024];
+
+  snprintf(fname, sizeof(fname), "%s/images/magic/smudge.png",
+	   api->data_directory);
+
+  return(IMG_Load(fname));
+}
+
+// Return our names, localized:
+char * smudge_get_name(magic_api * api, int which)
+{
+  return(strdup(gettext("Smudge")));
+}
+
+// Return our descriptions, localized:
+char * smudge_get_description(magic_api * api, int which)
+{
+  return(strdup(gettext(
+"Click and move the mouse around to smudge the picture.")));
+}
+
+// Do the effect:
+
+void do_smudge(void * ptr, int which, SDL_Surface * canvas, SDL_Surface * last,
+                int x, int y)
+{
+  magic_api * api = (magic_api *) ptr;
+  static double state[32][32][3];
+  unsigned i = 32 * 32;
+  double rate = api->button_down() ? 0.5 : 0.0;
+  Uint8 r, g, b;
+
+  while (i--)
+  {
+    int iy = i >> 5;
+    int ix = i & 0x1f;
+    // is it not on the circle of radius sqrt(120) at location 16,16?
+    if ((ix - 16) * (ix - 16) + (iy - 16) * (iy - 16) > 120)
+      continue;
+    // it is on the circle, so grab it
+
+    SDL_GetRGB(api->getpixel(canvas, x + ix - 16, y + iy - 16),
+               last->format, &r, &g, &b);
+    state[ix][iy][0] =
+      rate * state[ix][iy][0] + (1.0 - rate) * api->sRGB_to_linear(r);
+    state[ix][iy][1] =
+      rate * state[ix][iy][1] + (1.0 - rate) * api->sRGB_to_linear(g);
+    state[ix][iy][2] =
+      rate * state[ix][iy][2] + (1.0 - rate) * api->sRGB_to_linear(b);
+
+    // opacity 100% --> new data not blended w/ existing data
+    api->putpixel(canvas, x + ix - 16, y + iy - 16,
+             SDL_MapRGB(canvas->format, api->linear_to_sRGB(state[ix][iy][0]),
+                        api->linear_to_sRGB(state[ix][iy][1]),
+                        api->linear_to_sRGB(state[ix][iy][2])));
+  }
+}
+
+// Affect the canvas on drag:
+void smudge_drag(magic_api * api, int which, SDL_Surface * canvas,
+	          SDL_Surface * last, int ox, int oy, int x, int y)
+{
+  api->line(which, canvas, last, ox, oy, x, y, 1, do_smudge);
+
+  api->playsound(smudge_snd, (x * 255) / canvas->w, 255);
+}
+
+// Affect the canvas on click:
+void smudge_click(magic_api * api, int which,
+	           SDL_Surface * canvas, SDL_Surface * last,
+	           int x, int y)
+{
+  smudge_drag(api, which, canvas, last, x, y, x, y);
+}
+
+// No setup happened:
+void smudge_shutdown(magic_api * api)
+{
+  if (smudge_snd != NULL)
+    Mix_FreeChunk(smudge_snd);
+}
+
+// Record the color from Tux Paint:
+void smudge_set_color(magic_api * api, Uint8 r, Uint8 g, Uint8 b)
+{
+}
+
+// Use colors:
+int smudge_requires_colors(magic_api * api, int which)
+{
+  return 0;
+}
+