More world generators support

src/voxels/FlatWorldGenerator.cpp

@@ -0,0 +1,28 @@
+#include "FlatWorldGenerator.h"
+#include "voxel.h"
+#include "Chunk.h"
+
+#include "../content/Content.h"
+#include "../core_defs.h"
+
+void FlatWorldGenerator::generate(voxel* voxels, int cx, int cz, int seed) {
+    for (int z = 0; z < CHUNK_D; z++) {
+        for (int x = 0; x < CHUNK_W; x++) {
+            for (int cur_y = 0; cur_y < CHUNK_H; cur_y++){
+                int id = BLOCK_AIR;
+                int states = 0;
+
+                if(cur_y == 2) {
+                    id = idBazalt;
+                } else if(cur_y == 6) {
+                    id = idGrassBlock;
+                } else if(cur_y > 2 && cur_y <= 5) {
+                    id = idDirt;
+                } 
+
+                voxels[(cur_y * CHUNK_D + z) * CHUNK_W + x].id = id;
+                voxels[(cur_y * CHUNK_D + z) * CHUNK_W + x].states = states;
+            }
+        }
+    }
+}

src/voxels/FlatWorldGenerator.h

@@ -0,0 +1,18 @@
+#ifndef VOXELS_FLATWORLDGENERATOR_H_
+#define VOXELS_FLATWORLDGENERATOR_H_
+
+#include "../typedefs.h"
+#include "../voxels/WorldGenerator.h"
+
+struct voxel;
+class Content;
+
+class FlatWorldGenerator : WorldGenerator {
+public:
+
+	FlatWorldGenerator(const Content* content) : WorldGenerator(content) {}
+
+	void generate(voxel* voxels, int x, int z, int seed) override;
+};
+
+#endif /* VOXELS_FLATWORLDGENERATOR_H_ */

src/voxels/WorldGenerator.h

@@ -7,6 +7,7 @@ struct voxel;
 class Content;
 
 class WorldGenerator {
+protected:
 	blockid_t const idStone;
 	blockid_t const idDirt;
 	blockid_t const idGrassBlock;
@@ -19,7 +20,7 @@ class WorldGenerator {
 	blockid_t const idBazalt;
 public:
 	WorldGenerator(const Content* content);
-	void generate(voxel* voxels, int x, int z, int seed);
+	virtual void generate(voxel* voxels, int x, int z, int seed);
 };
 
-#endif /* VOXELS_WORLDGENERATOR_H_ */
+#endif /* VOXELS_WORLDGENERATOR_H_ */