initial commit

1 files changed, 59 insertions, 0 deletions

diff --git a/src/client/draw.hh b/src/client/draw.hh
new file mode 100644
index 0000000..821d67b
--- /dev/null
+++ b/src/client/draw.hh
@@ -0,0 +1,59 @@
+#ifndef CLIENT_DRAW_HH_
+#define CLIENT_DRAW_HH_
+
+#include <string_view>
+
+#include <glm/glm.hpp>
+
+#include "client/movement.hh"
+#include "client/player.hh"
+#include "client/render/camera.hh"
+#include "client/render/render.hh"
+#include "client/render/program.hh"
+#include "client/shared.hh"
+#include "client/window.hh"
+#include "client/world.hh"
+
+namespace client {
+namespace draw {
+
+// Scale takes the range [0, 1] and represents an amount of the screen.
+// Offset is any value that is added after scale.
+struct relative_arg {
+    glm::vec2 extent;
+    glm::vec2 offset;
+
+    glm::vec2 to_vec2() const noexcept {
+        const glm::vec2& window = render::get_window_size();
+        const float x = this->extent.x * window.x + this->offset.x;
+        const float y = this->extent.y * window.y + this->offset.y;
+        return {x, y};
+    }
+};
+
+struct rectangle_args {
+    relative_arg pos;
+    relative_arg size;
+    glm::vec4 colour;
+};
+
+struct text_args {
+    relative_arg pos;
+    float extent_height; // we don't get width here,
+    float offset_height;
+    glm::vec4 colour;
+    bool has_backing;
+    bool is_centered;
+    bool is_vcentered;
+};
+
+void draw_rectangle(const rectangle_args& args) noexcept;
+void draw_colour(const glm::vec4& colour) noexcept;
+void draw_text(const std::string_view text, const text_args& args) noexcept;
+
+void draw(client::players& players, client::world::chunk::map& chunks) noexcept;
+
+} // namespace draw
+} // namespace client
+
+#endif