From 56eaa27d4daca9264dac2e822b1126cf6eb8cbf4 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Wed, 4 May 2016 23:45:29 +0800
Subject: Piano keyboard: first steps.

---
 visualization/extrasmeltutils.cpp | 91 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 visualization/extrasmeltutils.cpp

(limited to 'visualization/extrasmeltutils.cpp')

diff --git a/visualization/extrasmeltutils.cpp b/visualization/extrasmeltutils.cpp
new file mode 100644
index 0000000..3e86549
--- /dev/null
+++ b/visualization/extrasmeltutils.cpp
@@ -0,0 +1,91 @@
+#include "extrasmeltutils.hpp"
+SMELT *smEntity3D::sm=NULL;
+smEntity3D::smEntity3D()
+{
+	sm=smGetInterface(SMELT_APILEVEL);
+	surfaces.clear();
+}
+void smEntity3D::pushSurface(smQuad q)
+{surfaces.push_back(q);}
+void smEntity3D::pushCube(smvec3d a,smvec3d b,DWORD color,DWORD mask)
+{
+	//a: top left corner b: bottom right corner
+	smQuad q;q.blend=BLEND_ALPHABLEND;q.tex=0;
+	for(int i=0;i<4;++i)q.v[i].col=color,q.v[i].tx=q.v[i].ty=0;
+	//top
+	if(mask&1)
+	{
+		q.v[0].x=a.x;q.v[0].y=a.y;q.v[0].z=a.z;
+		q.v[1].x=b.x;q.v[1].y=a.y;q.v[1].z=a.z;
+		q.v[2].x=b.x;q.v[2].y=b.y;q.v[2].z=a.z;
+		q.v[3].x=a.x;q.v[3].y=b.y;q.v[3].z=a.z;
+		pushSurface(q);
+	}
+	//bottom
+	if(mask&2)
+	{
+		q.v[0].x=a.x;q.v[0].y=a.y;q.v[0].z=b.z;
+		q.v[1].x=b.x;q.v[1].y=a.y;q.v[1].z=b.z;
+		q.v[2].x=b.x;q.v[2].y=b.y;q.v[2].z=b.z;
+		q.v[3].x=a.x;q.v[3].y=b.y;q.v[3].z=b.z;
+		pushSurface(q);
+	}
+	//left
+	if(mask&4)
+	{
+		q.v[0].x=a.x;q.v[0].y=b.y;q.v[0].z=a.z;
+		q.v[1].x=a.x;q.v[1].y=b.y;q.v[1].z=b.z;
+		q.v[2].x=a.x;q.v[2].y=a.y;q.v[2].z=b.z;
+		q.v[3].x=a.x;q.v[3].y=a.y;q.v[3].z=a.z;
+		pushSurface(q);
+	}
+	//right
+	if(mask&8)
+	{
+		q.v[0].x=b.x;q.v[0].y=b.y;q.v[0].z=a.z;
+		q.v[1].x=b.x;q.v[1].y=b.y;q.v[1].z=b.z;
+		q.v[2].x=b.x;q.v[2].y=a.y;q.v[2].z=b.z;
+		q.v[3].x=b.x;q.v[3].y=a.y;q.v[3].z=a.z;
+		pushSurface(q);
+	}
+	//front
+	if(mask&16)
+	{
+		q.v[0].x=a.x;q.v[0].y=b.y;q.v[0].z=a.z;
+		q.v[1].x=b.x;q.v[1].y=b.y;q.v[1].z=a.z;
+		q.v[2].x=b.x;q.v[2].y=b.y;q.v[2].z=b.z;
+		q.v[3].x=a.x;q.v[3].y=b.y;q.v[3].z=b.z;
+		pushSurface(q);
+	}
+	//back
+	if(mask&32)
+	{
+		q.v[0].x=a.x;q.v[0].y=a.y;q.v[0].z=a.z;
+		q.v[1].x=b.x;q.v[1].y=a.y;q.v[1].z=a.z;
+		q.v[2].x=b.x;q.v[2].y=a.y;q.v[2].z=b.z;
+		q.v[3].x=a.x;q.v[3].y=a.y;q.v[3].z=b.z;
+		pushSurface(q);
+	}
+}
+void smEntity3D::drawAt(smvec3d p)
+{
+	for(unsigned i=0;i<surfaces.size();++i)
+	{
+		smQuad tq=surfaces[i];
+		for(unsigned j=0;j<4;++j)tq.v[j].x+=p.x,tq.v[j].y+=p.y,tq.v[j].z+=p.z;
+		sm->smRenderQuad(&tq);
+	}
+}
+void smEntity3D::drawWithTransformation(smMatrix t,smvec3d p)
+{
+	for(unsigned i=0;i<surfaces.size();++i)
+	{
+		smQuad tq=surfaces[i];
+		for(unsigned j=0;j<4;++j)
+		{
+			smvec3d tp=t*smvec3d(tq.v[j].x,tq.v[j].y,tq.v[j].z);
+			tq.v[j].x=tp.x+p.x;tq.v[j].y=tp.y+p.y;tq.v[j].z=tp.z+p.z;
+		}
+		sm->smRenderQuad(&tq);
+	}
+}
-- 
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