From 3454e6779337d8523ae76c7fa16eb8c565aa2381 Mon Sep 17 00:00:00 2001
From: sapier <sapier at gmx dot net>
Date: Sun, 15 Jan 2012 20:30:26 +0100
Subject: [PATCH] added new entity style irregular_cube

---
 src/content_cao.cpp |  9 ++++++++
 src/mesh.cpp        | 53 +++++++++++++++++++++++++++++++++++++++++++++
 src/mesh.h          |  9 ++++++++
 3 files changed, 71 insertions(+)

diff --git a/src/content_cao.cpp b/src/content_cao.cpp
index 76f23082d..83f1cedff 100644
--- a/src/content_cao.cpp
+++ b/src/content_cao.cpp
@@ -1811,6 +1811,15 @@ public:
 			m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 			mesh->drop();
 
+			m_meshnode->setScale(v3f(1));
+			// Will be shown when we know the brightness
+			m_meshnode->setVisible(false);
+		} else if (m_prop->visual == "cube_disorted") {
+			infostream<<"LuaEntityCAO::addToScene(): irregular_cube"<<std::endl;
+			scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS), m_prop->collisionbox);
+			m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
+			mesh->drop();
+
 			m_meshnode->setScale(v3f(1));
 			// Will be shown when we know the brightness
 			m_meshnode->setVisible(false);
diff --git a/src/mesh.cpp b/src/mesh.cpp
index 8b9668593..c0b1419d4 100644
--- a/src/mesh.cpp
+++ b/src/mesh.cpp
@@ -82,6 +82,59 @@ scene::IAnimatedMesh* createCubeMesh(v3f scale)
 	return anim_mesh;
 }
 
+scene::IAnimatedMesh* createCubeMesh(v3f scale,core::aabbox3d<f32> box)
+{
+	video::SColor c(255,255,255,255);
+	video::S3DVertex vertices[24] =
+	{
+		// Up
+		video::S3DVertex(box.MinEdge.X,box.MaxEdge.Y,box.MinEdge.Z, 0,1,0, c, 0,1),
+		video::S3DVertex(box.MinEdge.X,box.MaxEdge.Y,box.MaxEdge.Z, 0,1,0, c, 0,0),
+		video::S3DVertex(box.MaxEdge.X,box.MaxEdge.Y,box.MaxEdge.Z, 0,1,0, c, 1,0),
+		video::S3DVertex(box.MaxEdge.X,box.MaxEdge.Y,box.MinEdge.Z, 0,1,0, c, 1,1),
+		// Down
+		video::S3DVertex(box.MinEdge.X,box.MinEdge.Y,box.MinEdge.Z, 0,-1,0, c, 0,0),
+		video::S3DVertex(box.MaxEdge.X,box.MinEdge.Y,box.MinEdge.Z, 0,-1,0, c, 1,0),
+		video::S3DVertex(box.MaxEdge.X,box.MinEdge.Y,box.MaxEdge.Z, 0,-1,0, c, 1,1),
+		video::S3DVertex(box.MinEdge.X,box.MinEdge.Y,box.MaxEdge.Z, 0,-1,0, c, 0,1),
+		// Right
+		video::S3DVertex(box.MaxEdge.X,box.MinEdge.Y,box.MinEdge.Z, 1,0,0, c, 0,1),
+		video::S3DVertex(box.MaxEdge.X,box.MaxEdge.Y,box.MinEdge.Z, 1,0,0, c, 0,0),
+		video::S3DVertex(box.MaxEdge.X,box.MaxEdge.Y,box.MaxEdge.Z, 1,0,0, c, 1,0),
+		video::S3DVertex(box.MaxEdge.X,box.MinEdge.Y,box.MaxEdge.Z, 1,0,0, c, 1,1),
+		// Left
+		video::S3DVertex(box.MinEdge.X,box.MinEdge.Y,box.MinEdge.Z, -1,0,0, c, 1,1),
+		video::S3DVertex(box.MinEdge.X,box.MinEdge.Y,box.MaxEdge.Z, -1,0,0, c, 0,1),
+		video::S3DVertex(box.MinEdge.X,box.MaxEdge.Y,box.MaxEdge.Z, -1,0,0, c, 0,0),
+		video::S3DVertex(box.MinEdge.X,box.MaxEdge.Y,box.MinEdge.Z, -1,0,0, c, 1,0),
+		// Back
+		video::S3DVertex(box.MinEdge.X,box.MinEdge.Y,box.MaxEdge.Z, 0,0,1, c, 1,1),
+		video::S3DVertex(box.MaxEdge.X,box.MinEdge.Y,box.MaxEdge.Z, 0,0,1, c, 0,1),
+		video::S3DVertex(box.MaxEdge.X,box.MaxEdge.Y,box.MaxEdge.Z, 0,0,1, c, 0,0),
+		video::S3DVertex(box.MinEdge.X,box.MaxEdge.Y,box.MaxEdge.Z, 0,0,1, c, 1,0),
+		// Front
+		video::S3DVertex(box.MinEdge.X,box.MinEdge.Y,box.MinEdge.Z, 0,0,-1, c, 0,1),
+		video::S3DVertex(box.MinEdge.X,box.MaxEdge.Y,box.MinEdge.Z, 0,0,-1, c, 0,0),
+		video::S3DVertex(box.MaxEdge.X,box.MaxEdge.Y,box.MinEdge.Z, 0,0,-1, c, 1,0),
+		video::S3DVertex(box.MaxEdge.X,box.MinEdge.Y,box.MinEdge.Z, 0,0,-1, c, 1,1),
+	};
+
+	u16 indices[6] = {0,1,2,2,3,0};
+
+	scene::SMesh *mesh = new scene::SMesh();
+	for (u32 i=0; i<6; ++i)
+	{
+		scene::IMeshBuffer *buf = new scene::SMeshBuffer();
+		buf->append(vertices + 4 * i, 4, indices, 6);
+		mesh->addMeshBuffer(buf);
+		buf->drop();
+	}
+	scene::SAnimatedMesh *anim_mesh = new scene::SAnimatedMesh(mesh);
+	mesh->drop();
+	scaleMesh(anim_mesh, scale);  // also recalculates bounding box
+	return anim_mesh;
+}
+
 scene::IAnimatedMesh* createPlantMesh(v3f scale)
 {
 	video::SColor c(255,255,255,255);
diff --git a/src/mesh.h b/src/mesh.h
index 78c0dc1e7..b22ccc318 100644
--- a/src/mesh.h
+++ b/src/mesh.h
@@ -31,6 +31,15 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 */
 scene::IAnimatedMesh* createCubeMesh(v3f scale);
 
+/*
+	Create a new cube mesh not linked to mapnode size.
+	Vertices are defined by given box.
+
+	The resulting mesh has 6 materials (up, down, right, left, back, front)
+	which must be defined by the caller.
+*/
+scene::IAnimatedMesh* createCubeMesh(v3f scale,core::aabbox3d<f32> box);
+
 /*
 	Create a new extruded mesh from a texture.
 	Maximum bounding box is (+-scale.X/2, +-scale.Y/2, +-scale.Z).
-- 
2.25.1