Chunk-bound tree decoration

1 files changed, 34 insertions, 0 deletions

diff --git a/src/World/Generation/Decoration.hpp b/src/World/Generation/Decoration.hpp
new file mode 100644
index 0000000..a592e72
--- /dev/null
+++ b/src/World/Generation/Decoration.hpp
@@ -0,0 +1,34 @@
+#pragma once
+
+#include "../Chunk.hpp"
+#include "../../Math/Random.hpp"
+
+namespace MC::World::Generation {
+
+class Decorator {
+public:
+    using Pos = Vector<3, uint>;
+
+    virtual ~Decorator() = default;
+
+    virtual void decorate_chunk(Chunk& chunk) = 0;
+
+    static void put_block(Chunk& chunk, Pos pos, BlockType block);
+    static void draw_column(Chunk& chunk, Pos pos, uint height, BlockType block);
+    static void draw_circle(Chunk& chunk, Pos pos, Vector<3> axis, float radius, BlockType block);
+};
+
+class TreeDecorator final : public Decorator {
+public:
+    void decorate_chunk(Chunk& chunk) override;
+private:
+    void draw_tree(Chunk& chunk, Pos pos) const;
+
+    static bool is_valid_position(Pos pos);
+
+    static constexpr uint s_tree_radius = 3;
+
+    Math::Random::Noise<2> m_tree_noise;
+};
+
+}