From 1d7efc8eba12b05ad96af2c6e68ba037b2138140 Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Mon, 9 Apr 2012 22:02:25 +0100
Subject: sequence blending almost there

---
 morpher/src/morphmesh.cpp | 141 ++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 123 insertions(+), 18 deletions(-)

(limited to 'morpher/src/morphmesh.cpp')

diff --git a/morpher/src/morphmesh.cpp b/morpher/src/morphmesh.cpp
index e68e526..63d58f7 100644
--- a/morpher/src/morphmesh.cpp
+++ b/morpher/src/morphmesh.cpp
@@ -1,9 +1,5 @@
 #include "morphmesh.h"
 
-sequence::sequence()
-{
-}
-
 track::track()
 {
 }
@@ -19,17 +15,49 @@ float track::evaluate(float time)
 {
     //interpolate key track
     if (time<=keys.begin()->first) return keys.begin()->second;
-    if (time>keys.rbegin()->first) return keys.rbegin()->second;
-    multimap< float,float >::iterator key2=keys.upper_bound( time );
-    multimap< float,float >::iterator key1=key2--;
+    if (time>=keys.rbegin()->first) return keys.rbegin()->second;
+    map< float,float >::iterator key2=keys.upper_bound( time );
+    map< float,float >::iterator key1=key2--;
     float interval=key2->first-key1->first;
     return (((1.0-((key2->first-time)/interval))*key2->second)+((1.0-((time-key1->first)/interval))*key1->second));
 }
 
+sequence::sequence(string _name,float _length,float _fadeinTime,float _fadeoutTime)
+{
+    name=_name;
+    length=_length;
+    startTime=0.0;
+    stopTime=0.0;
+    fadeinTime=_fadeinTime;
+    fadeoutTime=_fadeoutTime;
+    active=false;
+}
+
+void sequence::start(){
+	active=true;
+	startTime=ofGetElapsedTimef();
+}
+void sequence::stop(){
+	active=true;
+}
+
+vector<morphWeight> sequence::evaluate(float time){
+    float seqtime=time-startTime;
+    float fadeWeight=(seqtime<fadeinTime?seqtime/fadeinTime:seqtime>stopTime-fadeoutTime&&stopTime>0&&fadeoutTime>0?(seqtime-fadeoutTime)/(stopTime-fadeoutTime):1.0);
+    vector<morphWeight> weights;
+    map<string,track>::iterator i;
+    for( i = tracks.begin(); i != tracks.end(); i++ ) {
+        weights.push_back(morphWeight(i->first,(i->second.evaluate(seqtime))*fadeWeight));
+    }
+    return weights;
+}
+
+
 morphmesh::morphmesh()
 {
 	loaded=false;
-	/*
+
+    /*
 	//testing track function
 	track testrack;
 	testrack.keys.insert( pair<float,float>(0.0,2.0) );
@@ -38,7 +66,7 @@ morphmesh::morphmesh()
 	for (float f=-0.4;f<1.4;f+=0.1) {
         printf("%f : %f\n",f,testrack.evaluate(f));
 	}
-	*/
+    */
 }
 
 morphmesh::morphmesh(string filename)
@@ -51,6 +79,9 @@ morphmesh::morphmesh(string filename)
 int morphmesh::getNumTargets(){
 	return morphs.size();
 }
+int morphmesh::getNumSequences(){
+	return sequences.size();
+}
 void morphmesh::draw() {
 	draw(0);
 }
@@ -64,26 +95,101 @@ void morphmesh::draw(string target){
 	addVertices(morphs[target]);
 	ofMesh::draw();
 }
-void morphmesh::draw(const vector<string>& targets, const vector<float>& weights){
+void morphmesh::draw(const vector<morphWeight>& weights){
+	morphWeight mw[2];
+	for (int i=0;i<weights.size();i++) mw[i]=weights[i];
 	clearVertices();
 	//normalise weights
-	int targetsNum=min(targets.size(),morphs.size());
 	float totalWeights=0;
-	for (int i=0;i<targetsNum;i++) totalWeights+=weights[i];
+	for (int i=0;i<weights.size();i++) totalWeights+=weights[i].weight;
 	float weightFactor=1.0/totalWeights;
 	float bx,by,bz;
-	for (int j=0;j<morphs[targets[0]].size();j++) {
+	for (int j=0;j<morphs.begin()->second.size();j++) {
 		bx=by=bz=0;
-		for (int i=0;i<targetsNum;i++) {
-			bx+=morphs[targets[i]][j].x*weights[i];
-			by+=morphs[targets[i]][j].y*weights[i];
-			bz+=morphs[targets[i]][j].z*weights[i];
+		for (int i=0;i<weights.size();i++) {
+			bx+=morphs[weights[i].name][j].x*weights[i].weight;
+			by+=morphs[weights[i].name][j].y*weights[i].weight;
+			bz+=morphs[weights[i].name][j].z*weights[i].weight;
 		}
 		addVertex(ofVec3f(bx*weightFactor,by*weightFactor,bz*weightFactor));
 	}
 	ofMesh::draw();
 }
 
+void morphmesh::drawAnimated(){
+	float time=ofGetElapsedTimef();
+	vector<morphWeight> weights;
+	map<string,sequence>::iterator i;
+	for( i = sequences.begin(); i != sequences.end(); i++ ) {
+		if (i->second.active) {
+			vector<morphWeight> newWeights=i->second.evaluate(fmod(time-i->second.startTime,i->second.length));
+			int nnw= newWeights.size();  //test
+			weights.insert(weights.end(),newWeights.begin(),newWeights.end());
+			int nw= weights.size(); //test
+			if (i->second.stopTime>0&&time>i->second.stopTime) i->second.active=false;
+		}
+	}
+	draw(weights);
+}
+
+
+bool morphmesh::loadSeqs(string filename){
+	loaded=false;
+	ofxXmlSettings XML;
+	if( !XML.loadFile(filename) ){
+		printf("unable to load %s check data/ folder\n",filename.c_str());
+	}else{
+		if(XML.pushTag("Gauntletanim")) {
+		    int numSeqs=XML.getNumTags("Sequence");
+		    vector<string> seqnames;
+		    for (int i=0;i<numSeqs;i++) seqnames.push_back(XML.getAttribute("Sequence","Name","none",i));
+		    for (int i=0;i<numSeqs;i++) {
+                float length=ofToFloat(XML.getAttribute("Sequence","Length","0",i));
+                float fadeinTime=ofToFloat(XML.getAttribute("Sequence","Fadein","0",i));
+                float fadeoutTime=ofToFloat(XML.getAttribute("Sequence","Fadeout","0",i));
+                sequence seq=sequence(seqnames[i],length,fadeinTime,fadeoutTime);
+			  
+                XML.pushTag("Sequence",i);
+                    int numTargs=XML.getNumTags("Target");
+                    vector<string> targnames;
+                    for (int j=0;j<numTargs;j++) targnames.push_back(XML.getAttribute("Target","Name","none",j));
+                    for (int j=0;j<numTargs;j++) {
+                        XML.pushTag("Target",j);
+
+                            vector<float> times;
+                            string keystring=XML.getAttribute("Keys","Times","none",0);
+                            stringstream ks(keystring);
+                            istream_iterator<string> kbegin(ks);
+                            istream_iterator<string> kend;
+                            vector<string> kstrings(kbegin, kend);
+
+                            vector<float> values;
+                            string valstring=XML.getAttribute("Keys","Values","none",0);
+                            stringstream vs(valstring);
+                            istream_iterator<string> vbegin(vs);
+                            istream_iterator<string> vend;
+                            vector<string> vstrings(vbegin, vend);
+
+                            track tr;
+
+                            for (int k=0;k<min(kstrings.size(),vstrings.size());k++) tr.keys[ofToFloat(kstrings[k])]=ofToFloat(vstrings[k]);
+
+                            seq.tracks[targnames[j]]=tr;
+
+                        XML.popTag();
+                    }
+		    sequences[seqnames[i]]=seq;
+		    loaded=true;
+                XML.popTag();
+            }
+            XML.popTag();
+		}
+	}
+	return loaded;
+}
+
+
+
 bool morphmesh::loadMesh(string filename){
 	loaded=false;
 	ofxXmlSettings XML;
@@ -99,7 +205,6 @@ bool morphmesh::loadMesh(string filename){
 					XML.pushTag("Mesh",i);
 						if (XML.pushTag("AttributeList")) {
 							vector<ofVec3f> verts;
-
 							string vertstring=XML.getAttribute("Attribute","Data","none",0);
 							stringstream ss(vertstring);
 							istream_iterator<string> begin(ss);
-- 
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