X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fworld%2FGenerator.cpp;fp=src%2Fworld%2FGenerator.cpp;h=c49dce17bf153d15bdc7dd12360254b2d86d137a;hb=b7d09e1e35ef90282c97509e0020b20db3c7ea9f;hp=0000000000000000000000000000000000000000;hpb=e53a0e2e711a7d8bd9b0ddacd1360aa14370643f;p=blank.git

diff --git a/src/world/Generator.cpp b/src/world/Generator.cpp
new file mode 100644
index 0000000..c49dce1
--- /dev/null
+++ b/src/world/Generator.cpp
@@ -0,0 +1,54 @@
+#include "Generator.hpp"
+
+#include "Chunk.hpp"
+#include "../rand/OctaveNoise.hpp"
+
+#include <glm/glm.hpp>
+
+
+namespace blank {
+
+Generator::Generator(const Config &config) noexcept
+: solidNoise(config.solid_seed)
+, typeNoise(config.type_seed)
+, stretch(1.0f/config.stretch)
+, solid_threshold(config.solid_threshold)
+, space(0)
+, light(0)
+, solids() {
+
+}
+
+
+void Generator::operator ()(Chunk &chunk) const noexcept {
+	Chunk::Pos pos(chunk.Position());
+	glm::vec3 coords(pos * Chunk::Extent());
+	for (int z = 0; z < Chunk::depth; ++z) {
+		for (int y = 0; y < Chunk::height; ++y) {
+			for (int x = 0; x < Chunk::width; ++x) {
+				Block::Pos block_pos(x, y, z);
+				glm::vec3 gen_pos = (coords + block_pos) * stretch;
+				float val = OctaveNoise(solidNoise, coords + block_pos, 3, 0.5f, stretch, 2.0f);
+				if (val > solid_threshold) {
+					int type_val = int((typeNoise(gen_pos) + 1.0f) * solids.size()) % solids.size();
+					chunk.SetBlock(block_pos, Block(solids[type_val]));
+				} else {
+					chunk.SetBlock(block_pos, Block(space));
+				}
+			}
+		}
+	}
+	unsigned int random = 263167 * pos.x + 2097593 * pos.y + 426389 * pos.z;
+	for (int index = 0; index < Chunk::size; ++index) {
+		if (chunk.IsSurface(index)) {
+			random = random * 666649 + 7778777;
+			if ((random % 32) == 0) {
+				chunk.SetBlock(index, Block(light));
+			}
+		}
+	}
+	chunk.Invalidate();
+	chunk.CheckUpdate();
+}
+
+}