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src/voxels/WorldGenerator.cpp

@@ -0,0 +1,31 @@
+#include "WorldGenerator.h"
+#include "voxel.h";
+#include "Chunk.h";
+
+#include <math.h>
+#include <glm/glm.hpp>
+#include <glm/gtc/noise.hpp>
+
+void WorldGenerator::generate(voxel* voxels, int cx, int cy, int cz){
+	for (int z = 0; z < CHUNK_D; z++){
+		for (int x = 0; x < CHUNK_W; x++){
+			int real_x = x + cx * CHUNK_W;
+			int real_z = z + cz * CHUNK_D;
+			float height = glm::perlin(glm::vec3(real_x*0.0125f,real_z*0.0125f, 0.0f));
+			height += glm::perlin(glm::vec3(real_x*0.025f,real_z*0.025f, 0.0f))*0.5f;
+			height *= 0.1f;
+			height += 0.05f;
+			for (int y = 0; y < CHUNK_H; y++){
+				int real_y = y + cy * CHUNK_H;
+				float noise = height;
+				int id = noise / std::fmax(0.01f, real_y*0.1f + 0.1f) > 0.1f;
+				if (real_y <= 2)
+					id = 2;
+
+				if (id == 0 && real_y == 14 && height <= 0.01f)
+					id = 1;
+				voxels[(y * CHUNK_D + z) * CHUNK_W + x].id = id;
+			}
+		}
+	}
+}