From 0427680c29e5b0dfcaacf9c3f43f0473c15a1756 Mon Sep 17 00:00:00 2001
From: Krisjanis Rijnieks <krisjanis.rijnieks@gmail.com>
Date: Fri, 2 May 2014 18:44:33 +0200
Subject: [PATCH] Add setVertex method to striangle surface to be able to move
 its corners

---
 example/src/ofApp.cpp      |  5 +++++
 src/ofxBaseSurface.h       |  1 +
 src/ofxTriangleSurface.cpp | 10 ++++++++++
 src/ofxTriangleSurface.h   |  1 +
 4 files changed, 17 insertions(+)

diff --git a/example/src/ofApp.cpp b/example/src/ofApp.cpp
index db054b4..49e2ddc 100644
--- a/example/src/ofApp.cpp
+++ b/example/src/ofApp.cpp
@@ -12,6 +12,11 @@ void ofApp::setup()
 void ofApp::update()
 {
 	ofBackground(0);
+    
+    ofVec2f p;
+    p.x = ofRandomWidth();
+    p.y = ofRandomHeight();
+    triangleSurface.setVertex(0, p);
 }
 
 void ofApp::draw()
diff --git a/src/ofxBaseSurface.h b/src/ofxBaseSurface.h
index c57816e..f25551f 100644
--- a/src/ofxBaseSurface.h
+++ b/src/ofxBaseSurface.h
@@ -9,6 +9,7 @@ public:
     ofxBaseSurface();
     virtual void setup(){};
     virtual void draw(){};
+    virtual void setVertex(int index, ofVec2f p){};
     
 protected:
     ofMesh mesh;
diff --git a/src/ofxTriangleSurface.cpp b/src/ofxTriangleSurface.cpp
index e2907c3..a5e3c65 100644
--- a/src/ofxTriangleSurface.cpp
+++ b/src/ofxTriangleSurface.cpp
@@ -50,4 +50,14 @@ void ofxTriangleSurface::draw()
     texture->bind();
     mesh.draw();
     texture->unbind();
+}
+
+void ofxTriangleSurface::setVertex(int index, ofVec2f p)
+{
+    if ( index > 2 ) {
+        ofLog() << "Vertex with this index does not exist: " << index << endl;
+        return;
+    }
+    
+    mesh.setVertex(index, p);
 }
\ No newline at end of file
diff --git a/src/ofxTriangleSurface.h b/src/ofxTriangleSurface.h
index 7c19f64..88c49ad 100644
--- a/src/ofxTriangleSurface.h
+++ b/src/ofxTriangleSurface.h
@@ -13,6 +13,7 @@ public:
     void setup();
     void setup( ofVec2f p1, ofVec2f p2, ofVec2f p3, ofVec2f t1, ofVec2f t2, ofVec2f t3, ofTexture* texturePtr );
     void draw();
+    void setVertex( int index, ofVec2f p );
 };
 
 #endif
\ No newline at end of file