1 files changed, 77 insertions, 2 deletions
diff --git a/applications/goldman/source/main.cpp b/applications/goldman/source/main.cpp
index 28ed00a..d74eaad 100644
--- a/applications/goldman/source/main.cpp
+++ b/applications/goldman/source/main.cpp
@@ -1,4 +1,79 @@
+#include <daguerre/framebuffer.hpp>
+#include <daguerre/ppm.hpp>
+
+daguerre::hilbert_color trans_color;
+
+void convert_pointer(
+  daguerre::hilbert_color &dest, const daguerre::hilbert_color &src) {
+  if (src != trans_color)
+    dest = src;
+}
+
 int main(int, char **) {
-  while (1)
-    ;
+
+  trans_color = euler::syscall::encode_color(0xff, 0x00, 0xff);
+
+  daguerre::image<daguerre::hilbert_color> framebuffer =
+    daguerre::get_hilbert_framebuffer();
+
+  int fw = framebuffer.width;
+  int fh = framebuffer.height;
+
+  daguerre::image<daguerre::hilbert_color> double_buffer(fw, fh);
+
+  std::optional<daguerre::image<daguerre::hilbert_color>>
+    background_original = daguerre::try_load_ppm("/assets/background.ppm");
+
+  daguerre::image<daguerre::hilbert_color> background;
+
+  if (background_original.has_value())
+    background = background_original->stretch(fw, fh);
+  else {
+    background = daguerre::image<daguerre::hilbert_color>(fw, fh);
+    background.fill(euler::syscall::encode_color(0, 0, 0));
+  }
+
+  std::optional<daguerre::image<daguerre::hilbert_color>>
+    pointer_original = daguerre::try_load_ppm("/assets/pointer.ppm");
+
+  if (!pointer_original.has_value())
+    //TODO
+    while (1)
+      ;
+
+  daguerre::image<daguerre::hilbert_color>
+    pointer = std::move(*pointer_original);
+
+  int mouse_x = fw / 2;
+  int mouse_y = fh / 2;
+
+  while (true) {
+
+    double_buffer.copy_from(background, 0, 0);
+    double_buffer.convert_from(pointer, mouse_x, mouse_y, 0, 0,
+      std::min(pointer. width, double_buffer. width - mouse_x),
+      std::min(pointer.height, double_buffer.height - mouse_y),
+      &convert_pointer);
+
+    framebuffer.copy_from(double_buffer, 0, 0);
+
+    auto result = euler::syscall::get_input_packet();
+    if (std::holds_alternative<euler::syscall::mouse_packet>(result)) {
+      const auto &packet = std::get<euler::syscall::mouse_packet>(result);
+      mouse_x += packet.x_changed;
+      mouse_y += packet.y_changed;
+      if (mouse_x < 0)
+        mouse_x = 0;
+      else if (mouse_x >= fw)
+        mouse_x = fw - 1;
+      if (mouse_y < 0)
+        mouse_y = 0;
+      else if (mouse_y >= fh)
+        mouse_y = fh - 1;
+    }
+
+  }
+
+  return 0;
+
 }