more color

main.cpp

@@ -64,7 +64,7 @@ using clock = std::chrono::steady_clock;
 
 constexpr int width = 2000;
 constexpr int height = 1000;
-constexpr auto steps_per_second = 100'000;
+constexpr auto steps_per_second = 1'000'000;
 
 template <auto EF>
 struct [[nodiscard("give this a name so SDL_Quit is called at the end"
@@ -88,6 +88,15 @@ struct Walker {
 	SDL_Point pos;
 	SDL_Color col;
 };
+
+constexpr auto html2sdl_color(Uint32 rgb) {
+	return SDL_Color{
+		.r = static_cast<Uint8>(rgb >> 16U),
+		.g = static_cast<Uint8>((rgb >> 8U) & 0xffU),
+		.b = static_cast<Uint8>(rgb & 0xffU),
+		.a = SDL_ALPHA_OPAQUE
+	};
+}
 } // namespace
 
 template <typename Loopdata>
@@ -184,15 +193,21 @@ int main() try {
 	);
 	sdl_check(SDL_RenderClear(renderer));
 
+	const auto middle = SDL_Point{.x = width / 2, .y = height / 2};
 	auto walkers = std::to_array<Walker>(
-		{{.pos = {.x = width / 2, .y = height / 2},
-	      .col = {.r = 0xff, .g = 0x00, .b = 0x00, .a = 0xff}},
-	     {.pos = {.x = width / 2, .y = height / 2},
-	      .col = {.r = 0x00, .g = 0xff, .b = 0x00, .a = 0xff}},
-	     {.pos = {.x = width / 2, .y = height / 2},
-	      .col = {.r = 0x00, .g = 0x00, .b = 0xff, .a = 0xff}},
-	     {.pos = {.x = width / 2, .y = height / 2},
-	      .col = {.r = 0x00, .g = 0x00, .b = 0x00, .a = 0xff}}}
+		{/* {.pos = middle, .col = html2sdl_color(0x522258)},
+	     {.pos = middle, .col = html2sdl_color(0x8C3061)},
+	     {.pos = middle, .col = html2sdl_color(0xC63C51)},
+	     {.pos = middle, .col = html2sdl_color(0xD95F59)} */
+	     /* {.pos = middle, .col = html2sdl_color(0x402E7A)},
+	     {.pos = middle, .col = html2sdl_color(0x4C3BCF)},
+	     {.pos = middle, .col = html2sdl_color(0x4B70F5)},
+	     {.pos = middle, .col = html2sdl_color(0x3DC2EC)} */
+	     {.pos = middle, .col = html2sdl_color(0x006769)},
+	     {.pos = middle, .col = html2sdl_color(0x40A578)},
+	     {.pos = middle, .col = html2sdl_color(0x9DDE8B)},
+	     {.pos = middle, .col = html2sdl_color(0xE6FF94)}
+	    }
 	);
 
 	std::mt19937_64 rne(std::random_device{}());