Inventory transparency; very loosely based on sapier's commits.
[oweals/minetest.git] / src / mapgen.cpp
index dfea862a5b69f19397fb21500ff3260382c9a9c9..0018b9919355a065cef2ca5270a96bbc3d075eee 100644 (file)
@@ -67,8 +67,8 @@ static s16 find_ground_level_clever(VoxelManipulator &vmanip, v2s16 p2d)
        {
                MapNode &n = vmanip.m_data[i];
                if(content_walkable(n.d)
-                               && n.d != CONTENT_TREE
-                               && n.d != CONTENT_LEAVES)
+                               && n.getContent() != CONTENT_TREE
+                               && n.getContent() != CONTENT_LEAVES)
                        break;
 
                vmanip.m_area.add_y(em, i, -1);
@@ -143,8 +143,94 @@ static void make_tree(VoxelManipulator &vmanip, v3s16 p0)
                if(vmanip.m_area.contains(p) == false)
                        continue;
                u32 vi = vmanip.m_area.index(p);
-               if(vmanip.m_data[vi].d != CONTENT_AIR
-                               && vmanip.m_data[vi].d != CONTENT_IGNORE)
+               if(vmanip.m_data[vi].getContent() != CONTENT_AIR
+                               && vmanip.m_data[vi].getContent() != CONTENT_IGNORE)
+                       continue;
+               u32 i = leaves_a.index(x,y,z);
+               if(leaves_d[i] == 1)
+                       vmanip.m_data[vi] = leavesnode;
+       }
+}
+
+static void make_jungletree(VoxelManipulator &vmanip, v3s16 p0)
+{
+       MapNode treenode(CONTENT_JUNGLETREE);
+       MapNode leavesnode(CONTENT_LEAVES);
+
+       for(s16 x=-1; x<=1; x++)
+       for(s16 z=-1; z<=1; z++)
+       {
+               if(myrand_range(0, 2) == 0)
+                       continue;
+               v3s16 p1 = p0 + v3s16(x,0,z);
+               v3s16 p2 = p0 + v3s16(x,-1,z);
+               if(vmanip.m_area.contains(p2)
+                               && vmanip.m_data[vmanip.m_area.index(p2)] == CONTENT_AIR)
+                       vmanip.m_data[vmanip.m_area.index(p2)] = treenode;
+               else if(vmanip.m_area.contains(p1))
+                       vmanip.m_data[vmanip.m_area.index(p1)] = treenode;
+       }
+
+       s16 trunk_h = myrand_range(8, 12);
+       v3s16 p1 = p0;
+       for(s16 ii=0; ii<trunk_h; ii++)
+       {
+               if(vmanip.m_area.contains(p1))
+                       vmanip.m_data[vmanip.m_area.index(p1)] = treenode;
+               p1.Y++;
+       }
+
+       // p1 is now the last piece of the trunk
+       p1.Y -= 1;
+
+       VoxelArea leaves_a(v3s16(-3,-2,-3), v3s16(3,2,3));
+       //SharedPtr<u8> leaves_d(new u8[leaves_a.getVolume()]);
+       Buffer<u8> leaves_d(leaves_a.getVolume());
+       for(s32 i=0; i<leaves_a.getVolume(); i++)
+               leaves_d[i] = 0;
+
+       // Force leaves at near the end of the trunk
+       {
+               s16 d = 1;
+               for(s16 z=-d; z<=d; z++)
+               for(s16 y=-d; y<=d; y++)
+               for(s16 x=-d; x<=d; x++)
+               {
+                       leaves_d[leaves_a.index(v3s16(x,y,z))] = 1;
+               }
+       }
+
+       // Add leaves randomly
+       for(u32 iii=0; iii<30; iii++)
+       {
+               s16 d = 1;
+
+               v3s16 p(
+                       myrand_range(leaves_a.MinEdge.X, leaves_a.MaxEdge.X-d),
+                       myrand_range(leaves_a.MinEdge.Y, leaves_a.MaxEdge.Y-d),
+                       myrand_range(leaves_a.MinEdge.Z, leaves_a.MaxEdge.Z-d)
+               );
+
+               for(s16 z=0; z<=d; z++)
+               for(s16 y=0; y<=d; y++)
+               for(s16 x=0; x<=d; x++)
+               {
+                       leaves_d[leaves_a.index(p+v3s16(x,y,z))] = 1;
+               }
+       }
+
+       // Blit leaves to vmanip
+       for(s16 z=leaves_a.MinEdge.Z; z<=leaves_a.MaxEdge.Z; z++)
+       for(s16 y=leaves_a.MinEdge.Y; y<=leaves_a.MaxEdge.Y; y++)
+       for(s16 x=leaves_a.MinEdge.X; x<=leaves_a.MaxEdge.X; x++)
+       {
+               v3s16 p(x,y,z);
+               p += p1;
+               if(vmanip.m_area.contains(p) == false)
+                       continue;
+               u32 vi = vmanip.m_area.index(p);
+               if(vmanip.m_data[vi].getContent() != CONTENT_AIR
+                               && vmanip.m_data[vi].getContent() != CONTENT_IGNORE)
                        continue;
                u32 i = leaves_a.index(x,y,z);
                if(leaves_d[i] == 1)
@@ -251,8 +337,8 @@ static void make_randomstone(VoxelManipulator &vmanip, v3s16 p0)
                if(vmanip.m_area.contains(p) == false)
                        continue;
                u32 vi = vmanip.m_area.index(p);
-               if(vmanip.m_data[vi].d != CONTENT_AIR
-                               && vmanip.m_data[vi].d != CONTENT_IGNORE)
+               if(vmanip.m_data[vi].getContent() != CONTENT_AIR
+                               && vmanip.m_data[vi].getContent() != CONTENT_IGNORE)
                        continue;
                u32 i = stone_a.index(x,y,z);
                if(stone_d[i] == 1)
@@ -335,8 +421,8 @@ static void make_largestone(VoxelManipulator &vmanip, v3s16 p0)
                if(vmanip.m_area.contains(p) == false)
                        continue;
                u32 vi = vmanip.m_area.index(p);
-               /*if(vmanip.m_data[vi].d != CONTENT_AIR
-                               && vmanip.m_data[vi].d != CONTENT_IGNORE)
+               /*if(vmanip.m_data[vi].getContent() != CONTENT_AIR
+                               && vmanip.m_data[vi].getContent() != CONTENT_IGNORE)
                        continue;*/
                u32 i = stone_a.index(x,y,z);
                if(stone_d[i] == 1)
@@ -544,9 +630,9 @@ static void make_corridor(VoxelManipulator &vmanip, v3s16 doorplace,
                        p.Y += make_stairs;
 
                /*// If already empty
-               if(vmanip.getNodeNoExNoEmerge(p).d
+               if(vmanip.getNodeNoExNoEmerge(p).getContent()
                                == CONTENT_AIR
-               && vmanip.getNodeNoExNoEmerge(p+v3s16(0,1,0)).d
+               && vmanip.getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent()
                                == CONTENT_AIR)
                {
                }*/
@@ -642,9 +728,9 @@ public:
                                randomizeDir();
                                continue;
                        }
-                       if(vmanip.getNodeNoExNoEmerge(p).d
+                       if(vmanip.getNodeNoExNoEmerge(p).getContent()
                                        == CONTENT_COBBLE
-                       && vmanip.getNodeNoExNoEmerge(p1).d
+                       && vmanip.getNodeNoExNoEmerge(p1).getContent()
                                        == CONTENT_COBBLE)
                        {
                                // Found wall, this is a good place!
@@ -658,25 +744,25 @@ public:
                                Determine where to move next
                        */
                        // Jump one up if the actual space is there
-                       if(vmanip.getNodeNoExNoEmerge(p+v3s16(0,0,0)).d
+                       if(vmanip.getNodeNoExNoEmerge(p+v3s16(0,0,0)).getContent()
                                        == CONTENT_COBBLE
-                       && vmanip.getNodeNoExNoEmerge(p+v3s16(0,1,0)).d
+                       && vmanip.getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent()
                                        == CONTENT_AIR
-                       && vmanip.getNodeNoExNoEmerge(p+v3s16(0,2,0)).d
+                       && vmanip.getNodeNoExNoEmerge(p+v3s16(0,2,0)).getContent()
                                        == CONTENT_AIR)
                                p += v3s16(0,1,0);
                        // Jump one down if the actual space is there
-                       if(vmanip.getNodeNoExNoEmerge(p+v3s16(0,1,0)).d
+                       if(vmanip.getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent()
                                        == CONTENT_COBBLE
-                       && vmanip.getNodeNoExNoEmerge(p+v3s16(0,0,0)).d
+                       && vmanip.getNodeNoExNoEmerge(p+v3s16(0,0,0)).getContent()
                                        == CONTENT_AIR
-                       && vmanip.getNodeNoExNoEmerge(p+v3s16(0,-1,0)).d
+                       && vmanip.getNodeNoExNoEmerge(p+v3s16(0,-1,0)).getContent()
                                        == CONTENT_AIR)
                                p += v3s16(0,-1,0);
                        // Check if walking is now possible
-                       if(vmanip.getNodeNoExNoEmerge(p).d
+                       if(vmanip.getNodeNoExNoEmerge(p).getContent()
                                        != CONTENT_AIR
-                       || vmanip.getNodeNoExNoEmerge(p+v3s16(0,1,0)).d
+                       || vmanip.getNodeNoExNoEmerge(p+v3s16(0,1,0)).getContent()
                                        != CONTENT_AIR)
                        {
                                // Cannot continue walking here
@@ -798,7 +884,7 @@ static void make_dungeon1(VoxelManipulator &vmanip, PseudoRandom &random)
                                fits = false;
                                break;
                        }
-                       if(vmanip.m_data[vi].d == CONTENT_IGNORE)
+                       if(vmanip.m_data[vi].getContent() == CONTENT_IGNORE)
                        {
                                fits = false;
                                break;
@@ -890,6 +976,40 @@ static void make_dungeon1(VoxelManipulator &vmanip, PseudoRandom &random)
        }
 }
 
+static void make_nc(VoxelManipulator &vmanip, PseudoRandom &random)
+{
+       v3s16 dir;
+       u8 facedir_i = 0;
+       s32 r = random.range(0, 3);
+       if(r == 0){
+               dir = v3s16( 1, 0, 0);
+               facedir_i = 3;
+       }
+       if(r == 1){
+               dir = v3s16(-1, 0, 0);
+               facedir_i = 1;
+       }
+       if(r == 2){
+               dir = v3s16( 0, 0, 1);
+               facedir_i = 2;
+       }
+       if(r == 3){
+               dir = v3s16( 0, 0,-1);
+               facedir_i = 0;
+       }
+       v3s16 p = vmanip.m_area.MinEdge + v3s16(
+                       16+random.range(0,15),
+                       16+random.range(0,15),
+                       16+random.range(0,15));
+       vmanip.m_data[vmanip.m_area.index(p)] = MapNode(CONTENT_NC, facedir_i);
+       u32 length = random.range(3,15);
+       for(u32 j=0; j<length; j++)
+       {
+               p -= dir;
+               vmanip.m_data[vmanip.m_area.index(p)] = MapNode(CONTENT_NC_RB);
+       }
+}
+
 /*
        Noise functions. Make sure seed is mangled differently in each one.
 */
@@ -1004,13 +1124,26 @@ double tree_amount_2d(u64 seed, v2s16 p)
        double noise = noise2d_perlin(
                        0.5+(float)p.X/125, 0.5+(float)p.Y/125,
                        seed+2, 4, 0.66);
-       double zeroval = -0.35;
+       double zeroval = -0.39;
        if(noise < zeroval)
                return 0;
        else
                return 0.04 * (noise-zeroval) / (1.0-zeroval);
 }
 
+double surface_humidity_2d(u64 seed, v2s16 p)
+{
+       double noise = noise2d_perlin(
+                       0.5+(float)p.X/500, 0.5+(float)p.Y/500,
+                       seed+72384, 4, 0.66);
+       noise = (noise + 1.0)/2.0;
+       if(noise < 0.0)
+               noise = 0.0;
+       if(noise > 1.0)
+               noise = 1.0;
+       return noise;
+}
+
 #if 0
 double randomstone_amount_2d(u64 seed, v2s16 p)
 {
@@ -1273,11 +1406,11 @@ void add_random_objects(MapBlock *block)
                {
                        v3s16 p(x0,y0,z0);
                        MapNode n = block->getNodeNoEx(p);
-                       if(n.d == CONTENT_IGNORE)
+                       if(n.getContent() == CONTENT_IGNORE)
                                continue;
-                       if(content_features(n.d).liquid_type != LIQUID_NONE)
+                       if(content_features(n).liquid_type != LIQUID_NONE)
                                continue;
-                       if(content_features(n.d).walkable)
+                       if(content_features(n).walkable)
                        {
                                last_node_walkable = true;
                                continue;
@@ -1285,7 +1418,7 @@ void add_random_objects(MapBlock *block)
                        if(last_node_walkable)
                        {
                                // If block contains light information
-                               if(content_features(n.d).param_type == CPT_LIGHT)
+                               if(content_features(n).param_type == CPT_LIGHT)
                                {
                                        if(n.getLight(LIGHTBANK_DAY) <= 3)
                                        {
@@ -1331,7 +1464,7 @@ void make_block(BlockMakeData *data)
 {
        if(data->no_op)
        {
-               dstream<<"makeBlock: no-op"<<std::endl;
+               //dstream<<"makeBlock: no-op"<<std::endl;
                return;
        }
 
@@ -1392,7 +1525,7 @@ void make_block(BlockMakeData *data)
                                for(s16 y=node_min.Y; y<=node_max.Y; y++)
                                {
                                        // Only modify places that have no content
-                                       if(vmanip.m_data[i].d == CONTENT_IGNORE)
+                                       if(vmanip.m_data[i].getContent() == CONTENT_IGNORE)
                                        {
                                                if(y <= WATER_LEVEL)
                                                        vmanip.m_data[i] = MapNode(CONTENT_WATERSOURCE);
@@ -1419,7 +1552,7 @@ void make_block(BlockMakeData *data)
        /*
                Create a block-specific seed
        */
-       u32 blockseed = (u32)(data->seed%0x100000000) + full_node_min.Z*38134234
+       u32 blockseed = (u32)(data->seed%0x100000000ULL) + full_node_min.Z*38134234
                        + full_node_min.Y*42123 + full_node_min.X*23;
        
        /*
@@ -1498,7 +1631,7 @@ void make_block(BlockMakeData *data)
                        for(s16 y=node_min.Y; y<=node_max.Y; y++)
                        {
                                // Only modify places that have no content
-                               if(vmanip.m_data[i].d == CONTENT_IGNORE)
+                               if(vmanip.m_data[i].getContent() == CONTENT_IGNORE)
                                {
                                        // First priority: make air and water.
                                        // This avoids caves inside water.
@@ -1543,7 +1676,7 @@ void make_block(BlockMakeData *data)
                                {
                                        v3s16 p = v3s16(x,y,z) + g_27dirs[i];
                                        u32 vi = vmanip.m_area.index(p);
-                                       if(vmanip.m_data[vi].d == CONTENT_STONE)
+                                       if(vmanip.m_data[vi].getContent() == CONTENT_STONE)
                                                if(mineralrandom.next()%8 == 0)
                                                        vmanip.m_data[vi] = MapNode(CONTENT_MESE);
                                }
@@ -1584,13 +1717,13 @@ void make_block(BlockMakeData *data)
                                {
                                }*/
 
-                               if(new_content.d != CONTENT_IGNORE)
+                               if(new_content.getContent() != CONTENT_IGNORE)
                                {
                                        for(u16 i=0; i<27; i++)
                                        {
                                                v3s16 p = v3s16(x,y,z) + g_27dirs[i];
                                                u32 vi = vmanip.m_area.index(p);
-                                               if(vmanip.m_data[vi].d == base_content)
+                                               if(vmanip.m_data[vi].getContent() == base_content)
                                                {
                                                        if(mineralrandom.next()%sparseness == 0)
                                                                vmanip.m_data[vi] = new_content;
@@ -1621,7 +1754,7 @@ void make_block(BlockMakeData *data)
                                {
                                        v3s16 p = v3s16(x,y,z) + g_27dirs[i];
                                        u32 vi = vmanip.m_area.index(p);
-                                       if(vmanip.m_data[vi].d == CONTENT_STONE)
+                                       if(vmanip.m_data[vi].getContent() == CONTENT_STONE)
                                                if(mineralrandom.next()%8 == 0)
                                                        vmanip.m_data[vi] = MapNode(CONTENT_STONE, MINERAL_COAL);
                                }
@@ -1647,7 +1780,7 @@ void make_block(BlockMakeData *data)
                                {
                                        v3s16 p = v3s16(x,y,z) + g_27dirs[i];
                                        u32 vi = vmanip.m_area.index(p);
-                                       if(vmanip.m_data[vi].d == CONTENT_STONE)
+                                       if(vmanip.m_data[vi].getContent() == CONTENT_STONE)
                                                if(mineralrandom.next()%8 == 0)
                                                        vmanip.m_data[vi] = MapNode(CONTENT_STONE, MINERAL_IRON);
                                }
@@ -1670,7 +1803,7 @@ void make_block(BlockMakeData *data)
                        u32 i = vmanip.m_area.index(v3s16(p2d.X, node_max.Y, p2d.Y));
                        for(s16 y=node_max.Y; y>=node_min.Y; y--)
                        {
-                               if(vmanip.m_data[i].d == CONTENT_STONE)
+                               if(vmanip.m_data[i].getContent() == CONTENT_STONE)
                                {
                                        if(noisebuf_ground_crumbleness.get(x,y,z) > 1.3)
                                        {
@@ -1684,6 +1817,16 @@ void make_block(BlockMakeData *data)
                                                if(noisebuf_ground_wetness.get(x,y,z) < -0.6)
                                                        vmanip.m_data[i] = MapNode(CONTENT_GRAVEL);
                                        }
+                                       else if(noisebuf_ground_crumbleness.get(x,y,z) <
+                                                       -3.0 + MYMIN(0.1 * sqrt((float)MYMAX(0, -y)), 1.5))
+                                       {
+                                               vmanip.m_data[i] = MapNode(CONTENT_LAVASOURCE);
+                                               for(s16 x1=-1; x1<=1; x1++)
+                                               for(s16 y1=-1; y1<=1; y1++)
+                                               for(s16 z1=-1; z1<=1; z1++)
+                                                       data->transforming_liquid.push_back(
+                                                                       v3s16(p2d.X+x1, y+y1, p2d.Y+z1));
+                                       }
                                }
 
                                data->vmanip->m_area.add_y(em, i, -1);
@@ -1722,9 +1865,9 @@ void make_block(BlockMakeData *data)
                                u32 i = vmanip.m_area.index(v3s16(p2d.X, full_node_max.Y, p2d.Y));
                                for(s16 y=full_node_max.Y; y>=full_node_min.Y; y--)
                                {
-                                       if(vmanip.m_data[i].d == CONTENT_AIR)
+                                       if(vmanip.m_data[i].getContent() == CONTENT_AIR)
                                                vmanip.m_flags[i] |= VMANIP_FLAG_DUNGEON_PRESERVE;
-                                       else if(vmanip.m_data[i].d == CONTENT_WATERSOURCE)
+                                       else if(vmanip.m_data[i].getContent() == CONTENT_WATERSOURCE)
                                                vmanip.m_flags[i] |= VMANIP_FLAG_DUNGEON_PRESERVE;
                                        data->vmanip->m_area.add_y(em, i, -1);
                                }
@@ -1755,23 +1898,34 @@ void make_block(BlockMakeData *data)
                                        double d = noise3d_perlin((float)x/2.5,
                                                        (float)y/2.5,(float)z/2.5,
                                                        blockseed, 2, 1.4);
-                                       if(vmanip.m_data[i].d == CONTENT_COBBLE)
+                                       if(vmanip.m_data[i].getContent() == CONTENT_COBBLE)
                                        {
                                                if(d < wetness/3.0)
                                                {
-                                                       vmanip.m_data[i].d = CONTENT_MOSSYCOBBLE;
+                                                       vmanip.m_data[i].setContent(CONTENT_MOSSYCOBBLE);
                                                }
                                        }
                                        /*else if(vmanip.m_flags[i] & VMANIP_FLAG_DUNGEON_INSIDE)
                                        {
                                                if(wetness > 1.2)
-                                                       vmanip.m_data[i].d = CONTENT_MUD;
+                                                       vmanip.m_data[i].setContent(CONTENT_MUD);
                                        }*/
                                        data->vmanip->m_area.add_y(em, i, -1);
                                }
                        }
                }
        }
+
+       /*
+               Add NC
+       */
+       {
+               PseudoRandom ncrandom(blockseed+9324342);
+               if(ncrandom.range(0, 1000) == 0 && blockpos.Y <= -3)
+               {
+                       make_nc(vmanip, ncrandom);
+               }
+       }
        
        /*
                Add top and bottom side of water to transforming_liquid queue
@@ -1791,7 +1945,7 @@ void make_block(BlockMakeData *data)
                        {
                                if(water_found == false)
                                {
-                                       if(vmanip.m_data[i].d == CONTENT_WATERSOURCE)
+                                       if(vmanip.m_data[i].getContent() == CONTENT_WATERSOURCE)
                                        {
                                                v3s16 p = v3s16(p2d.X, y, p2d.Y);
                                                data->transforming_liquid.push_back(p);
@@ -1803,7 +1957,7 @@ void make_block(BlockMakeData *data)
                                        // This can be done because water_found can only
                                        // turn to true and end up here after going through
                                        // a single block.
-                                       if(vmanip.m_data[i+1].d != CONTENT_WATERSOURCE)
+                                       if(vmanip.m_data[i+1].getContent() != CONTENT_WATERSOURCE)
                                        {
                                                v3s16 p = v3s16(p2d.X, y+1, p2d.Y);
                                                data->transforming_liquid.push_back(p);
@@ -1846,16 +2000,16 @@ void make_block(BlockMakeData *data)
                                u32 i = vmanip.m_area.index(v3s16(p2d.X, start_y, p2d.Y));
                                for(s16 y=start_y; y>=node_min.Y-3; y--)
                                {
-                                       if(vmanip.m_data[i].d == CONTENT_WATERSOURCE)
+                                       if(vmanip.m_data[i].getContent() == CONTENT_WATERSOURCE)
                                                water_detected = true;
-                                       if(vmanip.m_data[i].d == CONTENT_AIR)
+                                       if(vmanip.m_data[i].getContent() == CONTENT_AIR)
                                                air_detected = true;
 
-                                       if((vmanip.m_data[i].d == CONTENT_STONE
-                                                       || vmanip.m_data[i].d == CONTENT_GRASS
-                                                       || vmanip.m_data[i].d == CONTENT_MUD
-                                                       || vmanip.m_data[i].d == CONTENT_SAND
-                                                       || vmanip.m_data[i].d == CONTENT_GRAVEL
+                                       if((vmanip.m_data[i].getContent() == CONTENT_STONE
+                                                       || vmanip.m_data[i].getContent() == CONTENT_GRASS
+                                                       || vmanip.m_data[i].getContent() == CONTENT_MUD
+                                                       || vmanip.m_data[i].getContent() == CONTENT_SAND
+                                                       || vmanip.m_data[i].getContent() == CONTENT_GRAVEL
                                                        ) && (air_detected || water_detected))
                                        {
                                                if(current_depth == 0 && y <= WATER_LEVEL+2
@@ -1890,8 +2044,8 @@ void make_block(BlockMakeData *data)
                                                }
                                                else
                                                {
-                                                       if(vmanip.m_data[i].d == CONTENT_MUD
-                                                               || vmanip.m_data[i].d == CONTENT_GRASS)
+                                                       if(vmanip.m_data[i].getContent() == CONTENT_MUD
+                                                               || vmanip.m_data[i].getContent() == CONTENT_GRASS)
                                                                vmanip.m_data[i] = MapNode(CONTENT_STONE);
                                                }
 
@@ -1909,11 +2063,19 @@ void make_block(BlockMakeData *data)
                }
 
                /*
-                       Add trees
+                       Calculate some stuff
                */
                
+               float surface_humidity = surface_humidity_2d(data->seed, p2d_center);
+               bool is_jungle = surface_humidity > 0.75;
                // Amount of trees
                u32 tree_count = block_area_nodes * tree_amount_2d(data->seed, p2d_center);
+               if(is_jungle)
+                       tree_count *= 5;
+
+               /*
+                       Add trees
+               */
                PseudoRandom treerandom(blockseed);
                // Put trees in random places on part of division
                for(u32 i=0; i<tree_count; i++)
@@ -1938,7 +2100,7 @@ void make_block(BlockMakeData *data)
                        {
                                u32 i = data->vmanip->m_area.index(p);
                                MapNode *n = &data->vmanip->m_data[i];
-                               if(n->d != CONTENT_AIR && n->d != CONTENT_WATERSOURCE && n->d != CONTENT_IGNORE)
+                               if(n->getContent() != CONTENT_AIR && n->getContent() != CONTENT_WATERSOURCE && n->getContent() != CONTENT_IGNORE)
                                {
                                        found = true;
                                        break;
@@ -1952,23 +2114,27 @@ void make_block(BlockMakeData *data)
                                u32 i = data->vmanip->m_area.index(p);
                                MapNode *n = &data->vmanip->m_data[i];
 
-                               if(n->d != CONTENT_MUD && n->d != CONTENT_GRASS && n->d != CONTENT_SAND)
+                               if(n->getContent() != CONTENT_MUD && n->getContent() != CONTENT_GRASS && n->getContent() != CONTENT_SAND)
                                                continue;
 
                                // Papyrus grows only on mud and in water
-                               if(n->d == CONTENT_MUD && y <= WATER_LEVEL)
+                               if(n->getContent() == CONTENT_MUD && y <= WATER_LEVEL)
                                {
                                        p.Y++;
                                        make_papyrus(vmanip, p);
                                }
                                // Trees grow only on mud and grass, on land
-                               else if((n->d == CONTENT_MUD || n->d == CONTENT_GRASS) && y > WATER_LEVEL + 2)
+                               else if((n->getContent() == CONTENT_MUD || n->getContent() == CONTENT_GRASS) && y > WATER_LEVEL + 2)
                                {
                                        p.Y++;
-                                       make_tree(vmanip, p);
+                                       //if(surface_humidity_2d(data->seed, v2s16(x, y)) < 0.5)
+                                       if(is_jungle == false)
+                                               make_tree(vmanip, p);
+                                       else
+                                               make_jungletree(vmanip, p);
                                }
                                // Cactii grow only on sand, on land
-                               else if(n->d == CONTENT_SAND && y > WATER_LEVEL + 2)
+                               else if(n->getContent() == CONTENT_SAND && y > WATER_LEVEL + 2)
                                {
                                        p.Y++;
                                        make_cactus(vmanip, p);
@@ -1976,6 +2142,54 @@ void make_block(BlockMakeData *data)
                        }
                }
 
+               /*
+                       Add jungle grass
+               */
+               if(is_jungle)
+               {
+                       PseudoRandom grassrandom(blockseed);
+                       for(u32 i=0; i<surface_humidity*5*tree_count; i++)
+                       {
+                               s16 x = grassrandom.range(node_min.X, node_max.X);
+                               s16 z = grassrandom.range(node_min.Z, node_max.Z);
+                               s16 y = find_ground_level_from_noise(data->seed, v2s16(x,z), 4);
+                               if(y < WATER_LEVEL)
+                                       continue;
+                               if(y < node_min.Y || y > node_max.Y)
+                                       continue;
+                               /*
+                                       Find exact ground level
+                               */
+                               v3s16 p(x,y+6,z);
+                               bool found = false;
+                               for(; p.Y >= y-6; p.Y--)
+                               {
+                                       u32 i = data->vmanip->m_area.index(p);
+                                       MapNode *n = &data->vmanip->m_data[i];
+                                       if(content_features(*n).is_ground_content
+                                                       || n->getContent() == CONTENT_JUNGLETREE)
+                                       {
+                                               found = true;
+                                               break;
+                                       }
+                               }
+                               // If not found, handle next one
+                               if(found == false)
+                                       continue;
+                               p.Y++;
+                               if(vmanip.m_area.contains(p) == false)
+                                       continue;
+                               if(vmanip.m_data[vmanip.m_area.index(p)].getContent() != CONTENT_AIR)
+                                       continue;
+                               /*p.Y--;
+                               if(vmanip.m_area.contains(p))
+                                       vmanip.m_data[vmanip.m_area.index(p)] = CONTENT_MUD;
+                               p.Y++;*/
+                               if(vmanip.m_area.contains(p))
+                                       vmanip.m_data[vmanip.m_area.index(p)] = CONTENT_JUNGLEGRASS;
+                       }
+               }
+
 #if 0
                /*
                        Add some kind of random stones
@@ -2000,7 +2214,7 @@ void make_block(BlockMakeData *data)
                        /*{
                                u32 i = data->vmanip->m_area.index(v3s16(p));
                                MapNode *n = &data->vmanip->m_data[i];
-                               if(n->d != CONTENT_MUD && n->d != CONTENT_GRASS)
+                               if(n->getContent() != CONTENT_MUD && n->getContent() != CONTENT_GRASS)
                                        continue;
                        }*/
                        // Will be placed one higher
@@ -2035,7 +2249,7 @@ void make_block(BlockMakeData *data)
                        /*{
                                u32 i = data->vmanip->m_area.index(v3s16(p));
                                MapNode *n = &data->vmanip->m_data[i];
-                               if(n->d != CONTENT_MUD && n->d != CONTENT_GRASS)
+                               if(n->getContent() != CONTENT_MUD && n->getContent() != CONTENT_GRASS)
                                        continue;
                        }*/
                        // Will be placed one lower