Added new magic tools: Kalidescope, Glass Tile, Emboss, Metal Paint, Waves.

Began new magic tool: Flower.

magic/src/metalpaint.c

@@ -0,0 +1,147 @@
+#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 * metalpaint_snd;
+Uint8 metalpaint_r, metalpaint_g, metalpaint_b;
+
+
+Uint32 metalpaint_api_version(void) { return(TP_MAGIC_API_VERSION); }
+
+
+// No setup required:
+int metalpaint_init(magic_api * api)
+{
+  char fname[1024];
+
+  snprintf(fname, sizeof(fname), "%s/sounds/magic/one.wav",
+	    api->data_directory);
+  metalpaint_snd = Mix_LoadWAV(fname);
+
+  return(1);
+}
+
+// We have multiple tools:
+int metalpaint_get_tool_count(magic_api * api)
+{
+  return(1);
+}
+
+// Load our icons:
+SDL_Surface * metalpaint_get_icon(magic_api * api, int which)
+{
+  char fname[1024];
+
+  snprintf(fname, sizeof(fname), "%s/images/magic/metalpaint.png",
+	   api->data_directory);
+
+  return(IMG_Load(fname));
+}
+
+// Return our names, localized:
+char * metalpaint_get_name(magic_api * api, int which)
+{
+  return(strdup(gettext("Metal Paint")));
+}
+
+// Return our descriptions, localized:
+char * metalpaint_get_description(magic_api * api, int which)
+{
+  return(strdup(gettext("Click and drag the mouse to paint with a metallic color.")));
+}
+
+#define METALPAINT_CYCLE 32
+
+/* Based on 'Golden' gradient in The GIMP: */
+
+int metalpaint_gradient[METALPAINT_CYCLE] = {
+   56,  64,  73,  83,  93, 102, 113, 123,
+  139, 154, 168, 180, 185, 189, 183, 174,
+  164, 152, 142, 135, 129, 138, 149, 158,
+  166, 163, 158, 149, 140, 122, 103, 82
+};
+
+// Do the effect:
+
+void do_metalpaint(void * ptr, int which, SDL_Surface * canvas, SDL_Surface * last,
+                int x, int y)
+{
+  magic_api * api = (magic_api *) ptr;
+  int xx, yy;
+  int n;
+  Uint8 r, g, b;
+
+  for (yy = -8; yy < 8; yy++)
+  {
+    for (xx = -8; xx < 8; xx++)
+    {
+      n = metalpaint_gradient[((x + xx + y + yy) / 4) % METALPAINT_CYCLE];
+
+      r = (metalpaint_r * n) / 255;
+      g = (metalpaint_g * n) / 255;
+      b = (metalpaint_b * n) / 255;
+
+      api->putpixel(canvas, x + xx, y + yy, SDL_MapRGB(canvas->format, r, g, b));
+    }
+  }
+}
+
+// Affect the canvas on drag:
+void metalpaint_drag(magic_api * api, int which, SDL_Surface * canvas,
+	          SDL_Surface * last, int ox, int oy, int x, int y,
+		  SDL_Rect * update_rect)
+{
+  api->line(which, canvas, last, ox, oy, x, y, 1, do_metalpaint);
+
+  if (ox > x) { int tmp = ox; ox = x; x = tmp; }
+  if (oy > y) { int tmp = oy; oy = y; y = tmp; }
+
+  update_rect->x = ox - 8;
+  update_rect->y = oy - 8;
+  update_rect->w = (x + 8) - update_rect->x;
+  update_rect->h = (y + 8) - update_rect->h;
+
+  api->playsound(metalpaint_snd, (x * 255) / canvas->w, 255);
+}
+
+// Affect the canvas on click:
+void metalpaint_click(magic_api * api, int which,
+	           SDL_Surface * canvas, SDL_Surface * last,
+	           int x, int y, SDL_Rect * update_rect)
+{
+  metalpaint_drag(api, which, canvas, last, x, y, x, y, update_rect);
+}
+
+// Affect the canvas on release:
+void metalpaint_release(magic_api * api, int which,
+	           SDL_Surface * canvas, SDL_Surface * last,
+	           int x, int y, SDL_Rect * update_rect)
+{
+}
+
+// No setup happened:
+void metalpaint_shutdown(magic_api * api)
+{
+  if (metalpaint_snd != NULL)
+    Mix_FreeChunk(metalpaint_snd);
+}
+
+// Record the color from Tux Paint:
+void metalpaint_set_color(magic_api * api, Uint8 r, Uint8 g, Uint8 b)
+{
+  metalpaint_r = min(255, r + 64);
+  metalpaint_g = min(255, g + 64);
+  metalpaint_b = min(255, b + 64);
+}
+
+// Use colors:
+int metalpaint_requires_colors(magic_api * api, int which)
+{
+  return 1;
+}
+