From 77ce73a9b57cf3deac08720b449886b71412ea2f Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@getdrop.com>
Date: Fri, 19 Aug 2022 13:33:06 +0100
Subject: text with mapping and moveable star emitter

---
 lasertext/src/ofApp.cpp | 164 +++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 155 insertions(+), 9 deletions(-)

(limited to 'lasertext/src/ofApp.cpp')

diff --git a/lasertext/src/ofApp.cpp b/lasertext/src/ofApp.cpp
index 5e6865e..a4e076d 100644
--- a/lasertext/src/ofApp.cpp
+++ b/lasertext/src/ofApp.cpp
@@ -5,19 +5,33 @@
 what do we want to store/control per letter?
 */
 
+
+
 //--------------------------------------------------------------
 void ofApp::setup(){
+	outputWindowSize=ofPoint(ofGetWidth(),ofGetHeight());
+
 	fonts.open("fonts/");
 	fonts.allowExt("svg");
 	fonts.listDir();
 	ofLogNotice()<<"found "<<fonts.size()<<" fonts";
 
 	currentFont=0;
-	banner.loadFont("fonts/EMSPepita.svg"); //fonts.getPath(currentFont));
+	banner.loadFont("fonts/EMSDecorousScript.svg"); // EMSPepita.svg"); //fonts.getPath(currentFont));
 	banner.init("Everything Is Going To Be Alright");
 
-    textgui.setup("text","",5,680);
-	textgui.add(text_scale.set("scale", 1.0f, 0.5f, 3.0f));
+	starsgui.setup("stars","",5,350);
+	starsgui.add(stars_x.set("x", 0.0f, -2000.0f, 2000.0f));
+	starsgui.add(stars_y.set("y", 0.0f, -2000.0f, 2000.0f));
+    starsgui.add(stars_radius.set("radius", 100.0f, 10.0f, 500.0f));
+    starsgui.add(stars_speed.set("speed", 5.0f, 0.0f, 10.0f));
+    starsgui.add(stars_life.set("life", 4.0f, 3.0f, 10.0f));
+
+
+    textgui.setup("text","",5,650);
+	textgui.add(laser_scale.set("scale", 1.0f, 0.5f, 3.0f));
+	textgui.add(laser_pos_x.set("x", 0.0f, -1000.0f, 1000.0f));
+	textgui.add(laser_pos_y.set("y", 0.0f, -1000.0f, 1000.0f));
     textgui.add(text_speed.set("speed", 1.0f, 0.0f, 2.0f));
 
     lasergui.setup("laser","",5,750);
@@ -28,6 +42,9 @@ void ofApp::setup(){
     lasergui.add(laser_blank_num.set("blank points", 8, 0, 32));
     lasergui.add(laser_max_angle.set("max angle", 15.0f, 1.0f, 90.0f));
 
+	select_warpframe=-1;
+    bDrawFrame=false;
+
     if( XML.loadFile("settings.xml") ){
 		cout << "settings.xml loaded!" <<std::endl;
 
@@ -36,7 +53,61 @@ void ofApp::setup(){
 		cout << "unable to load settings.xml"<<std::endl;
 	}
 
+	warpframe[0]=glm::vec2(
+		XML.getValue("WARP:p0:X", 0),
+		XML.getValue("WARP:p0:Y", 0)
+		);
+    warpframe[1]=glm::vec2(
+		XML.getValue("WARP:p1:X", outputWindowSize.x),
+		XML.getValue("WARP:p1:Y", 0)
+		);
+    warpframe[2]=glm::vec2(
+		XML.getValue("WARP:p2:X", outputWindowSize.x),
+		XML.getValue("WARP:p2:Y", outputWindowSize.y)
+		);
+    warpframe[3]=glm::vec2(
+		XML.getValue("WARP:p3:X", 0),
+		XML.getValue("WARP:p3:Y", outputWindowSize.y)
+		);
+
+    laser_pos_x=XML.getValue("POSITION:X", 0);
+    laser_pos_y=XML.getValue("POSITION:Y", 0);
+    laser_scale=XML.getValue("SCALE", 1.0f);
+
+	stars.init(ofVec2f(2000.0f,2000.0f),100.0f,1.0,5.0,4.0,1.0);
+
+}
+
+//====================== settings
+
+void ofApp::default_settings(){
+	warpframe[0]=glm::vec2(0,0);
+    warpframe[1]=glm::vec2(outputWindowSize.x,0);
+    warpframe[2]=glm::vec2(outputWindowSize.x,outputWindowSize.y);
+    warpframe[3]=glm::vec2(0,outputWindowSize.y);
+	outputPosition=ofPoint(0,0);
+	outputScale=1.0f;
 }
+
+void ofApp::save_settings(){
+	XML.setValue("WARP:p0:X", warpframe[0].x);
+	XML.setValue("WARP:p0:Y", warpframe[0].y);
+	XML.setValue("WARP:p1:X", warpframe[1].x);
+	XML.setValue("WARP:p1:Y", warpframe[1].y);
+	XML.setValue("WARP:p2:X", warpframe[2].x);
+	XML.setValue("WARP:p2:Y", warpframe[2].y);
+	XML.setValue("WARP:p3:X", warpframe[3].x);
+	XML.setValue("WARP:p3:Y", warpframe[3].y);
+
+	XML.setValue("POSITION:X", laser_pos_x);
+    XML.setValue("POSITION:Y", laser_pos_y);
+
+    XML.setValue("SCALE", laser_scale);
+
+    XML.saveFile("settings.xml");
+    cout << "settings.xml saved!" <<std::endl;
+}
+
 //--------------------------------------------------------------
 void ofApp::update(){
 	banner.update(text_speed);
@@ -47,6 +118,14 @@ void ofApp::update(){
     laser.set_maxangle(laser_max_angle);
 
     laser.set_intensity(laser_intensity);
+
+
+    stars.centre=ofVec2f(stars_x,stars_y);
+    stars.radius=stars_radius;
+    stars.speed=stars_speed;
+    stars.lifespan=stars_life;;
+
+    stars.update();
 }
 
 //--------------------------------------------------------------	
@@ -56,28 +135,79 @@ void ofApp::draw(){
 
 	textgui.draw();
 	lasergui.draw();
+	starsgui.draw();
+
+	lineTransformer::drawWarpFrame(warpframe);
+
+	glm::vec2 src[]={
+    	glm::vec2(0,0),
+    	glm::vec2(ofGetWidth(),0),
+    	glm::vec2(ofGetWidth(),ofGetHeight()),
+    	glm::vec2(0,ofGetHeight())
+    };
+
+    glm::vec2 mp=glm::vec2(outputWindowSize.x/2,outputWindowSize.y/2);
+
+    glm::vec2 scaled_dest[]={
+    	((warpframe[0]-mp)*outputScale)+mp,
+    	((warpframe[1]-mp)*outputScale)+mp,
+    	((warpframe[2]-mp)*outputScale)+mp,
+    	((warpframe[3]-mp)*outputScale)+mp
+    };
 
-	vector<colourPolyline> shapes = banner.getOutlines(0.08f*text_scale); //+(0.02f*sin(ofGetElapsedTimef()*.1f)));
+    ofMatrix4x4 warp =lineTransformer::getPerspectiveTransformMatrix(src,warpframe);
+
+	vector<colourPolyline> shapes = banner.getOutlines(0.08f); //*text_scale); //+(0.02f*sin(ofGetElapsedTimef()*.1f)));
+
+	ofMatrix4x4 rm = ofMatrix4x4::newIdentityMatrix();
+	rm.translate(laser_pos_x,laser_pos_y,0);
+	rm.scale(laser_scale,laser_scale,laser_scale);
+	rm.translate(outputWindowSize.x/2,outputWindowSize.y/2,0);
+	
+	vector <colourPolyline> warpedOutput;
+	vector <colourPolyline> warpedScaledOutput;
+
+	for (auto s:shapes){
+    	warpedOutput.push_back(lineTransformer::polyLineTransform(warp,s));
+    }
+
+    for (auto s:warpedOutput){
+    	warpedScaledOutput.push_back(lineTransformer::polyLineTransform(rm,s));
+    }
 
 	int num = 0;
 
-	if (laser_power) num=laser.draw(shapes);
+	if (laser_power&&shapes.size()) num=laser.draw(warpedScaledOutput);
 
 	//banner.draw();
 
 	ofPushMatrix();
 	ofTranslate(ofGetWidth()/2,ofGetHeight()/2);
 	//ofScale(0.05,-0.05,0.05);
-	for (auto& s: shapes) s.draw();
+	for (auto& s: warpedOutput) s.draw();
 	ofPopMatrix();
 
+	ofSetColor(255,255,255);
+
+	vector<colourPolyline> starshapes=stars.getPoints();
+	int numstars=0;
+    for (auto& s: starshapes) {
+    	numstars+=s.size();
+    	s.draw();
+    }
+
+    num+=laser.draw(starshapes);
+
     if (num>0){
-        ofSetWindowTitle(ofToString(ofGetFrameRate(), 2)+" fps laser points: "+ofToString(num));
+        ofSetWindowTitle(ofToString(ofGetFrameRate(), 2)+" fps laser points: "+ofToString(num)+", stars: "+ofToString(numstars));
     }
     else {
-        ofSetWindowTitle(ofToString(ofGetFrameRate(), 2)+" fps laser power off ");
+        ofSetWindowTitle(ofToString(ofGetFrameRate(), 2)+" fps laser power off, stars: "+ofToString(numstars));
     }
 
+
+
+
 }
 
 
@@ -99,6 +229,7 @@ void ofApp::keyPressed(ofKeyEventArgs &args){
 
 //--------------------------------------------------------------
 void ofApp::keyReleased(int key){
+	/*
 	if (key>=' '&&key<='~'){
 		banner.addGlyph(key);
 	}
@@ -120,7 +251,13 @@ void ofApp::keyReleased(int key){
 			break;
 		}
 	}
-	
+	*/
+	switch(key){
+		case 's':{
+			save_settings();
+			break;
+		}
+	}
 }
 
 //--------------------------------------------------------------
@@ -130,14 +267,23 @@ void ofApp::mouseMoved(int x, int y ){
 
 //--------------------------------------------------------------
 void ofApp::mouseDragged(int x, int y, int button){
+	if (select_warpframe>-1){
+		warpframe[select_warpframe]=glm::vec2(x,y);
+	}
 }
 
 //--------------------------------------------------------------
 void ofApp::mousePressed(int x, int y, int button){
+	for (int i=0;i<4;i++){
+		if (ofPoint(x,y).distance(warpframe[i])<25){
+			select_warpframe=i;
+		}
+	}
 }
 
 //--------------------------------------------------------------
 void ofApp::mouseReleased(int x, int y, int button){
+	select_warpframe=-1;
 }
 
 //--------------------------------------------------------------
-- 
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