merged jungle and bluish shadows

8 files changed, 287 insertions, 20 deletions

diff --git a/src/content_mapblock.cpp b/src/content_mapblock.cpp
index 4a9fa5e98..3044c8b35 100644
--- a/src/content_mapblock.cpp
+++ b/src/content_mapblock.cpp
@@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "content_mapnode.h"
 #include "main.h" // For g_settings and g_texturesource
 #include "mineral.h"
+#include "mapblock_mesh.h" // For MapBlock_LightColor()
 
 #ifndef SERVER
 // Create a cuboid.
@@ -198,6 +199,17 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 	AtlasPointer pa_papyrus = g_texturesource->getTexture(
 			g_texturesource->getTextureId("papyrus.png"));
 	material_papyrus.setTexture(0, pa_papyrus.atlas);
+
+	// junglegrass material
+	video::SMaterial material_junglegrass;
+	material_junglegrass.setFlag(video::EMF_LIGHTING, false);
+	material_junglegrass.setFlag(video::EMF_BILINEAR_FILTER, false);
+	material_junglegrass.setFlag(video::EMF_FOG_ENABLE, true);
+	material_junglegrass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
+	AtlasPointer pa_junglegrass = g_texturesource->getTexture(
+			g_texturesource->getTextureId("junglegrass.png"));
+	material_junglegrass.setTexture(0, pa_junglegrass.atlas);
+
 	for(s16 z=0; z<MAP_BLOCKSIZE; z++)
 	for(s16 y=0; y<MAP_BLOCKSIZE; y++)
 	for(s16 x=0; x<MAP_BLOCKSIZE; x++)
@@ -275,7 +287,7 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 		else if(n.getContent() == CONTENT_SIGN_WALL)
 		{
 			u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
-			video::SColor c(255,l,l,l);
+			video::SColor c = MapBlock_LightColor(255, l);
 				
 			float d = (float)BS/16;
 			// Wall at X+ of node
@@ -341,7 +353,7 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 			// Otherwise use the light of this node (the water)
 			else
 				l = decode_light(n.getLightBlend(data->m_daynight_ratio));
-			video::SColor c(WATER_ALPHA,l,l,l);
+			video::SColor c = MapBlock_LightColor(WATER_ALPHA, l);
 			
 			// Neighbor water levels (key = relative position)
 			// Includes current node
@@ -607,7 +619,7 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 				continue;
 
 			u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
-			video::SColor c(WATER_ALPHA,l,l,l);
+			video::SColor c = MapBlock_LightColor(WATER_ALPHA, l);
 			
 			video::S3DVertex vertices[4] =
 			{
@@ -642,7 +654,7 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 		{
 			/*u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));*/
 			u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
-			video::SColor c(255,l,l,l);
+			video::SColor c = MapBlock_LightColor(255, l);
 
 			for(u32 j=0; j<6; j++)
 			{
@@ -709,7 +721,7 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 		else if(n.getContent() == CONTENT_GLASS)
 		{
 			u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
-			video::SColor c(255,l,l,l);
+			video::SColor c = MapBlock_LightColor(255, l);
 
 			for(u32 j=0; j<6; j++)
 			{
@@ -772,7 +784,7 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 		else if(n.getContent() == CONTENT_FENCE)
 		{
 			u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
-			video::SColor c(255,l,l,l);
+			video::SColor c = MapBlock_LightColor(255, l);
 
 			const f32 post_rad=(f32)BS/10;
 			const f32 bar_rad=(f32)BS/20;
@@ -861,7 +873,7 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 				else
 					l = 255;*/
 				u8 l = 255;
-				video::SColor c(255,l,l,l);
+				video::SColor c = MapBlock_LightColor(255, l);
 				
 				// Get the right texture
 				TileSpec ts = n.getTile(dir);
@@ -920,7 +932,7 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 		else if(n.getContent() == CONTENT_PAPYRUS)
 		{
 			u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
-			video::SColor c(255,l,l,l);
+			video::SColor c = MapBlock_LightColor(255, l);
 
 			for(u32 j=0; j<4; j++)
 			{
@@ -967,10 +979,61 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 				collector.append(material_papyrus, vertices, 4, indices, 6);
 			}
 		}
+		else if(n.getContent() == CONTENT_JUNGLEGRASS)
+		{
+			u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
+			video::SColor c = MapBlock_LightColor(255, l);
+
+			for(u32 j=0; j<4; j++)
+			{
+				video::S3DVertex vertices[4] =
+				{
+					video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
+						pa_papyrus.x0(), pa_papyrus.y1()),
+					video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
+						pa_papyrus.x1(), pa_papyrus.y1()),
+					video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
+						pa_papyrus.x1(), pa_papyrus.y0()),
+					video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
+						pa_papyrus.x0(), pa_papyrus.y0()),
+				};
+
+				if(j == 0)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(45);
+				}
+				else if(j == 1)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(-45);
+				}
+				else if(j == 2)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(135);
+				}
+				else if(j == 3)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(-135);
+				}
+
+				for(u16 i=0; i<4; i++)
+				{
+					vertices[i].Pos *= 1.3;
+					vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
+				}
+
+				u16 indices[] = {0,1,2,2,3,0};
+				// Add to mesh collector
+				collector.append(material_junglegrass, vertices, 4, indices, 6);
+			}
+		}
 		else if(n.getContent() == CONTENT_RAIL)
 		{
 			u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
-			video::SColor c(255,l,l,l);
+			video::SColor c = MapBlock_LightColor(255, l);
 
 			bool is_rail_x [] = { false, false };  /* x-1, x+1 */
 			bool is_rail_z [] = { false, false };  /* z-1, z+1 */
diff --git a/src/content_mapnode.cpp b/src/content_mapnode.cpp
index 8701ab887..146b806ef 100644
--- a/src/content_mapnode.cpp
+++ b/src/content_mapnode.cpp
@@ -195,12 +195,34 @@ void content_mapnode_init()
 	f->dug_item = std::string("MaterialItem ")+itos(i)+" 1";
 	setWoodLikeDiggingProperties(f->digging_properties, 1.0);
 	
+	i = CONTENT_JUNGLETREE;
+	f = &content_features(i);
+	f->setAllTextures("jungletree.png");
+	f->setTexture(0, "jungletree_top.png");
+	f->setTexture(1, "jungletree_top.png");
+	f->param_type = CPT_MINERAL;
+	//f->is_ground_content = true;
+	f->dug_item = std::string("MaterialItem ")+itos(i)+" 1";
+	setWoodLikeDiggingProperties(f->digging_properties, 1.0);
+	
+	i = CONTENT_JUNGLEGRASS;
+	f = &content_features(i);
+	f->setInventoryTexture("junglegrass.png");
+	f->light_propagates = true;
+	f->param_type = CPT_LIGHT;
+	//f->is_ground_content = true;
+	f->air_equivalent = false; // grass grows underneath
+	f->dug_item = std::string("MaterialItem ")+itos(i)+" 1";
+	f->solidness = 0; // drawn separately, makes no faces
+	f->walkable = false;
+	setWoodLikeDiggingProperties(f->digging_properties, 0.10);
+
 	i = CONTENT_LEAVES;
 	f = &content_features(i);
 	f->light_propagates = true;
 	//f->param_type = CPT_MINERAL;
 	f->param_type = CPT_LIGHT;
-	f->is_ground_content = true;
+	//f->is_ground_content = true;
 	if(new_style_leaves)
 	{
 		f->solidness = 0; // drawn separately, makes no faces
diff --git a/src/content_mapnode.h b/src/content_mapnode.h
index 02c604c60..51cf06496 100644
--- a/src/content_mapnode.h
+++ b/src/content_mapnode.h
@@ -44,6 +44,8 @@ MapNode mapnode_translate_to_internal(MapNode n_from, u8 version);
 #define CONTENT_FURNACE 16
 #define CONTENT_FENCE 21
 #define CONTENT_RAIL 30
+#define CONTENT_JUNGLETREE 31
+#define CONTENT_JUNGLEGRASS 32
 
 // 0x800...0xfff (2048...4095): higher 4 bytes of param2 are not usable
 #define CONTENT_GRASS 0x800 //1
diff --git a/src/keycode.cpp b/src/keycode.cpp
index f014914d0..d6472d2ea 100644
--- a/src/keycode.cpp
+++ b/src/keycode.cpp
@@ -233,3 +233,4 @@ void clearKeyCache()
 {
 	g_key_setting_cache.clear();
 }
+
diff --git a/src/mapblock_mesh.cpp b/src/mapblock_mesh.cpp
index 45cd8d96c..465170c2d 100644
--- a/src/mapblock_mesh.cpp
+++ b/src/mapblock_mesh.cpp
@@ -140,9 +140,24 @@ void getNodeVertexDirs(v3s16 dir, v3s16 *vertex_dirs)
 	}
 }
 
-inline video::SColor lightColor(u8 alpha, u8 light)
+video::SColor MapBlock_LightColor(u8 alpha, u8 light)
 {
+#if 0
 	return video::SColor(alpha,light,light,light);
+#endif
+	//return video::SColor(alpha,light,light,MYMAX(0, (s16)light-25)+25);
+	/*return video::SColor(alpha,light,light,MYMAX(0,
+			pow((float)light/255.0, 0.8)*255.0));*/
+#if 1
+	// Emphase blue a bit in darker places
+	float lim = 80;
+	float power = 0.7;
+	if(light > lim)
+		return video::SColor(alpha,light,light,light);
+	else
+		return video::SColor(alpha,light,light,MYMAX(0,
+				pow((float)light/lim, power)*lim));
+#endif
 }
 
 struct FastFace
@@ -198,7 +213,7 @@ void makeFastFace(TileSpec tile, u8 li0, u8 li1, u8 li2, u8 li3, v3f p,
 	float w = tile.texture.size.X;
 	float h = tile.texture.size.Y;
 
-	/*video::SColor c = lightColor(alpha, li);
+	/*video::SColor c = MapBlock_LightColor(alpha, li);
 
 	face.vertices[0] = video::S3DVertex(vertex_pos[0], v3f(0,1,0), c,
 			core::vector2d<f32>(x0+w*abs_scale, y0+h));
@@ -210,16 +225,16 @@ void makeFastFace(TileSpec tile, u8 li0, u8 li1, u8 li2, u8 li3, v3f p,
 			core::vector2d<f32>(x0+w*abs_scale, y0));*/
 
 	face.vertices[0] = video::S3DVertex(vertex_pos[0], v3f(0,1,0),
-			lightColor(alpha, li0),
+			MapBlock_LightColor(alpha, li0),
 			core::vector2d<f32>(x0+w*abs_scale, y0+h));
 	face.vertices[1] = video::S3DVertex(vertex_pos[1], v3f(0,1,0),
-			lightColor(alpha, li1),
+			MapBlock_LightColor(alpha, li1),
 			core::vector2d<f32>(x0, y0+h));
 	face.vertices[2] = video::S3DVertex(vertex_pos[2], v3f(0,1,0),
-			lightColor(alpha, li2),
+			MapBlock_LightColor(alpha, li2),
 			core::vector2d<f32>(x0, y0));
 	face.vertices[3] = video::S3DVertex(vertex_pos[3], v3f(0,1,0),
-			lightColor(alpha, li3),
+			MapBlock_LightColor(alpha, li3),
 			core::vector2d<f32>(x0+w*abs_scale, y0));
 
 	face.tile = tile;
diff --git a/src/mapblock_mesh.h b/src/mapblock_mesh.h
index 591172bc9..d43c19a25 100644
--- a/src/mapblock_mesh.h
+++ b/src/mapblock_mesh.h
@@ -121,6 +121,9 @@ private:
 	core::array<PreMeshBuffer> m_prebuffers;
 };
 
+// Helper functions
+video::SColor MapBlock_LightColor(u8 alpha, u8 light);
+
 class MapBlock;
 
 struct MeshMakeData
@@ -137,6 +140,7 @@ struct MeshMakeData
 	void fill(u32 daynight_ratio, MapBlock *block);
 };
 
+// This is the highest-level function in here
 scene::SMesh* makeMapBlockMesh(MeshMakeData *data);
 
 #endif
diff --git a/src/mapgen.cpp b/src/mapgen.cpp
index bc4f82280..0ba7f91ab 100644
--- a/src/mapgen.cpp
+++ b/src/mapgen.cpp
@@ -152,6 +152,92 @@ static void make_tree(VoxelManipulator &vmanip, v3s16 p0)
 	}
 }
 
+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)
+			vmanip.m_data[vi] = leavesnode;
+	}
+}
+
 void make_papyrus(VoxelManipulator &vmanip, v3s16 p0)
 {
 	MapNode papyrusnode(CONTENT_PAPYRUS);
@@ -1004,13 +1090,26 @@ 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)
 {
@@ -1909,11 +2008,19 @@ 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++)
@@ -1965,7 +2072,11 @@ void make_block(BlockMakeData *data)
 				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->getContent() == CONTENT_SAND && y > WATER_LEVEL + 2)
@@ -1976,6 +2087,54 @@ 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
diff --git a/src/mapnode.h b/src/mapnode.h
index 3b7ef5878..956de6852 100644
--- a/src/mapnode.h
+++ b/src/mapnode.h
@@ -115,7 +115,8 @@ struct ContentFeatures
 	TileSpec tiles[6];
 	
 	video::ITexture *inventory_texture;
-
+	
+	// True for all ground-like things like stone and mud, false for eg. trees
 	bool is_ground_content;
 	bool light_propagates;
 	bool sunlight_propagates;