From 880aa870a0316d8f2f3081bf117e8237af270405 Mon Sep 17 00:00:00 2001
From: Nils Dagsson Moskopp <nils@dieweltistgarnichtso.net>
Date: Mon, 30 May 2011 14:42:08 +0200
Subject: + cactii

---
 src/map.cpp | 34 +++++++++++++++++++++++++++-------
 1 file changed, 27 insertions(+), 7 deletions(-)

(limited to 'src/map.cpp')

diff --git a/src/map.cpp b/src/map.cpp
index a49de3c46..c48599d47 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -2045,6 +2045,20 @@ void make_tree(VoxelManipulator &vmanip, v3s16 p0)
 	}
 }
 
+void make_cactus(VoxelManipulator &vmanip, v3s16 p0)
+{
+	MapNode cactusnode(CONTENT_CACTUS);
+
+	s16 trunk_h = 3;
+	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)] = cactusnode;
+		p1.Y++;
+	}
+}
+
 /*
 	Noise functions. Make sure seed is mangled differently in each one.
 */
@@ -3207,18 +3221,24 @@ void makeChunk(ChunkMakeData *data)
 				if(y > y_nodes_max - 6)
 					continue;
 				v3s16 p(x,y,z);
-				/*
-					Trees grow only on mud and grass
-				*/
 				{
 					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->d != CONTENT_MUD && n->d != CONTENT_GRASS && n->d != CONTENT_SAND)
 						continue;
+					// Trees grow only on mud and grass
+					if(n->d == CONTENT_MUD || n->d == CONTENT_GRASS)
+					{
+						p.Y++;
+						make_tree(data->vmanip, p);
+					}
+					// Cactii grow only on sand
+					if(n->d == CONTENT_SAND)
+					{
+						p.Y++;
+						make_cactus(data->vmanip, p);
+					}
 				}
-				p.Y++;
-				// Make a tree
-				make_tree(data->vmanip, p);
 			}
 		}
 		/*u32 tree_max = relative_area / 60;
-- 
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