add win wiggle

1 files changed, 27 insertions, 4 deletions

diff --git a/src/sdl/draw.c b/src/sdl/draw.c
index 09da95e..2dab2ee 100644
--- a/src/sdl/draw.c
+++ b/src/sdl/draw.c
@@ -5,6 +5,8 @@
 #include "draw.h"
 #include "sprites.h"
 
+#define M_2_PI (2.0 * 3.1415926)
+
 static size_t
 get_cell_size(
   const draw_ctx_t * const draw_ctx
@@ -62,6 +64,27 @@ draw_cell(
 }
 
 static void
+draw_home(
+  draw_ctx_t * const draw_ctx,
+  const sok_pos_t pos
+) {
+  const SDL_Rect rect = get_cell_rect(draw_ctx, pos);
+
+  SDL_Texture *tex = draw_ctx->sprites[SPRITE_HOME];
+  if (sok_ctx_is_done(draw_ctx->ctx)) {
+    const Uint32 ticks = SDL_GetTicks();
+    const double angle = 10 * sin(ticks * M_2_PI / 1000.0);
+    if (SDL_RenderCopyEx(draw_ctx->renderer, tex, NULL, &rect, angle, NULL, SDL_FLIP_NONE)) {
+      die("SDL_RenderCopyEx(): %s", SDL_GetError());
+    }
+  } else {
+    if (SDL_RenderCopy(draw_ctx->renderer, tex, NULL, &rect)) {
+      die("SDL_RenderCopy(): %s", SDL_GetError());
+    }
+  }
+}
+
+static void
 draw_border(
   draw_ctx_t * const draw_ctx,
   const sok_pos_t level_size
@@ -141,7 +164,7 @@ draw_sprites_on_home(
   void * const data
 ) {
   draw_ctx_t * const draw_ctx = data;
-  draw_cell(draw_ctx, pos, SPRITE_HOME);
+  draw_home(draw_ctx, pos);
   return true;
 }
 
@@ -320,9 +343,9 @@ set_bg_won_color(
 
   // gen color
   const SDL_Color c = {
-    .r = 0x66 + 0x33 * sinf((1000 + ticks) * 2.0 * 3.14159 / 2000.0),
-    .g = 0x66 + 0x33 * sinf((3000 + ticks) * 2.0 * 3.14159 / 5000.0),
-    .b = 0x66 + 0x33 * sinf((5000 + ticks) * 2.0 * 3.14159 / 7000.0),
+    .r = 0x66 + 0x33 * sinf((1000 + ticks) * M_2_PI / 2000.0),
+    .g = 0x66 + 0x33 * sinf((3000 + ticks) * M_2_PI / 5000.0),
+    .b = 0x66 + 0x33 * sinf((5000 + ticks) * M_2_PI / 7000.0),
     .a = 0xFF,
   };