From 7eb7b1a64d5a22ae707c0a9d4115cb3c326f472f Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Thu, 19 Apr 2012 03:14:18 +0100
Subject: working border

---
 gaunt01/src/testApp.cpp | 78 ++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 70 insertions(+), 8 deletions(-)

(limited to 'gaunt01/src/testApp.cpp')

diff --git a/gaunt01/src/testApp.cpp b/gaunt01/src/testApp.cpp
index 4047f69..785eb5a 100644
--- a/gaunt01/src/testApp.cpp
+++ b/gaunt01/src/testApp.cpp
@@ -13,6 +13,39 @@ Is this too much work for every frame? Should it be put in a seperate thread?
 
 
 */
+
+bool OutsidePolygon(vector<ofPoint>& polygon,ofPoint p)
+//thanks to Paul Bourke
+//http://local.wasp.uwa.edu.au/~pbourke/geometry/insidepoly/
+{
+  int counter = 0;
+  int i;
+  double xinters;
+  ofPoint p1,p2;
+
+  p1 = polygon[0];
+  for (i=1;i<=polygon.size();i++) {
+    p2 = polygon[i % polygon.size()];
+    if (p.y > min(p1.y,p2.y)) {
+      if (p.y <= max(p1.y,p2.y)) {
+        if (p.x <= max(p1.x,p2.x)) {
+          if (p1.y != p2.y) {
+            xinters = (p.y-p1.y)*(p2.x-p1.x)/(p2.y-p1.y)+p1.x;
+            if (p1.x == p2.x || p.x <= xinters)
+              counter++;
+          }
+        }
+      }
+    }
+    p1 = p2;
+  }
+
+  if (counter % 2 == 0)
+    return true;
+  else
+    return false;
+}
+
 void testApp::setup(){
 
 	bLearnBakground = true;
@@ -96,6 +129,8 @@ void testApp::setup(){
     
     light.setPosition(ofGetWidth(),0,ofGetHeight());
     light.enable();
+    
+    drawingborder=false;
 
 }
 
@@ -294,7 +329,10 @@ void testApp::update(){
 			players[blobsManager.blobs.at(i).id].update(blob); //create model
 		}
 		map<int,player>::iterator it;
-		for (it=players.begin();it!=players.end();it++) if(ids.find(it->first)==ids.end()) it->second.active=false;
+		for (it=players.begin();it!=players.end();it++) {
+			if (ids.find(it->first)==ids.end()||(border.size()>3&&OutsidePolygon(border,ofPoint(it->second.getWorldPosition().x,it->second.getWorldPosition().y)))) it->second.active=false;
+			else it->second.active=true;
+		}
 	}
 	if (trapDoor.checkUpdate(players)) updatePlane();
 	Bird.update(players,cam_angle);
@@ -339,8 +377,9 @@ void testApp::draw(){
 	glDisable(GL_DEPTH_TEST);
 	ofSetHexColor(0xffffff);
 	colorImg.getTextureReference().bind();
+	map<int,player>::iterator it;
 	for(int i=0;i<blobsManager.blobs.size();i++){
-		players[blobsManager.blobs.at(i).id].draw(); 
+		if(players[blobsManager.blobs.at(i).id].active) players[blobsManager.blobs.at(i).id].draw(); 
 	}
 	colorImg.getTextureReference().unbind();
 
@@ -432,6 +471,15 @@ void testApp::draw(){
 
 				//
 			}
+			if (border.size()>1) {
+				ofSetHexColor(0x00ff00);
+				ofPushMatrix();
+					ofRotate(cam_angle,1,0,0);
+					for (int i=0;i<border.size();i++) {
+						ofLine(border[i],border[(i+1)%border.size()]);
+					}
+				ofPopMatrix();
+			}
 			
 			
 
@@ -475,7 +523,7 @@ void testApp::keyPressed(int key){
 			cam_angle-=1;
 			updatePlane();
 			break;
-        case 'q':
+		case 'q':
 			drawStats=!drawStats;
 			break;
 		case 's':
@@ -527,7 +575,7 @@ void testApp::keyPressed(int key){
 				Bird.currentseq="attack";
 			}
 			break;
-			
+		/*	
 		case 'y':
 			light.setPosition(light.getX(),light.getY()-100,light.getZ());
 			printf("light at %f,%f,%f\n",light.getX(),light.getY(),light.getZ());
@@ -552,6 +600,14 @@ void testApp::keyPressed(int key){
 			light.setPosition(light.getX(),light.getY(),light.getZ()-100);
 			printf("light at %f,%f,%f\n",light.getX(),light.getY(),light.getZ());
 			break;
+		*/
+		case 'b':
+			if (!drawingborder) {
+				border.clear();
+				drawingborder=true;
+			}
+			else drawingborder=false;
+			break;
 	}
 }
 
@@ -578,10 +634,16 @@ void testApp::mousePressed(int x, int y, int button){
 //--------------------------------------------------------------
 void testApp::mouseReleased(int x, int y, int button){
 	pos=ofVec2f(x,y);
-	//if (hit) printf("ray:%i,%i hit plane:%f,%f,%f\n",x,y,pos.x,pos.y,pos.z);
-	//else printf("ray:%i,%i missed plane\n",x,y);
-	trapDoor.startPos(screen2plane(pos));
-	updatePlane();
+	if (drawingborder) {
+		border.push_back(screen2plane(pos));
+	}
+	else {
+		
+		//if (hit) printf("ray:%i,%i hit plane:%f,%f,%f\n",x,y,pos.x,pos.y,pos.z);
+		//else printf("ray:%i,%i missed plane\n",x,y);
+		trapDoor.startPos(screen2plane(pos));
+		updatePlane();
+	}
 }
 
 //--------------------------------------------------------------
-- 
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