examples/snake: Fix up build.

examples/CMakeLists.txt

@@ -186,7 +186,7 @@ add_sdl_example_executable(renderer-primitives SOURCES renderer/02-primitives/re
 add_sdl_example_executable(audio-simple-playback SOURCES audio/01-simple-playback/simple-playback.c)
 add_sdl_example_executable(audio-simple-playback-callback SOURCES audio/02-simple-playback-callback/simple-playback-callback.c)
 add_sdl_example_executable(audio-load-wav SOURCES audio/03-load-wav/load-wav.c DATAFILES ${CMAKE_CURRENT_SOURCE_DIR}/../test/sample.wav)
-add_sdl_example_executable(snake SOURCES game/01-snake/main.c game/01-snake/snake.c)
+add_sdl_example_executable(game-snake SOURCES game/01-snake/main.c game/01-snake/snake.c)
 
 
 if(PSP)

examples/game/01-snake/snake.c

@@ -34,8 +34,8 @@ static void new_food_pos_(SnakeContext *ctx, RandFunc rand)
     char x;
     char y;
     for (;;) {
-        x = rand(SNAKE_GAME_WIDTH);
-        y = rand(SNAKE_GAME_HEIGHT);
+        x = (char) rand(SNAKE_GAME_WIDTH);
+        y = (char) rand(SNAKE_GAME_HEIGHT);
         if (snake_cell_at(ctx, x, y) == SNAKE_CELL_NOTHING) {
             put_cell_at_(ctx, x, y, SNAKE_CELL_FOOD);
             break;

examples/game/01-snake/snake.h

@@ -41,7 +41,7 @@ typedef struct
     unsigned occupied_cells;
 } SnakeContext;
 
-typedef int (*RandFunc)(int n);
+typedef Sint32 SDLCALL (*RandFunc)(Sint32 n);
 
 void snake_initialize(SnakeContext *ctx, RandFunc rand);
 void snake_redir(SnakeContext *ctx, SnakeDirection dir);