centre seeking real good

1 files changed, 19 insertions, 4 deletions

diff --git a/gaunt01/src/bird.cpp b/gaunt01/src/bird.cpp
index 18f8227..09e8a60 100644
--- a/gaunt01/src/bird.cpp
+++ b/gaunt01/src/bird.cpp
@@ -41,6 +41,10 @@ void bird::setBounds(ofPlane* _bounds) {
 	bounds=_bounds;
 }
 
+void bird::setCentre(ofVec2f _centre) {
+	//in 2D on plane
+	centre=_centre;
+}
 bird::~bird()
 {
     //dtor
@@ -82,6 +86,9 @@ void bird::update(map<int,player>& players, float angle){
 	pointer=ofRay(position.rotated(angle,ofVec3f(1,0,0)),-direction.rotated(heading,ofVec3f(0,0,-1)).rotated(angle,ofVec3f(1,0,0))*1000.0f,false);
 
 	//intersect with bounds and find shortest distance to edge of world
+	//
+	//
+	/*
 	float shortest=1000000.0f;
 	vector <ofVec3f> pts;
 	int shnum=-1;
@@ -108,16 +115,24 @@ void bird::update(map<int,player>& players, float angle){
 	else {
 		printf("error: no bird bounds intersection\n");
 	}
+	*/
+	//avoiding edges is a bit of a nightmare
+	//turnRate=(turnRate*.99)+(0.05f*max(0.0f,1.0f-(pow(edgelength*.0100f,2.0f)))*max(0.0f,90.0f-abs(edgeangle))*sign(edgeangle)); 
 
 	//decide whether we are running out of space and if so, which way to turn#
 	//turning tendency is more acute when we are more perpendicular, and closer, to the edge
 	//mayeb work out how many frames left before we crash
 
-	//turn formula max(0,90-abs(turnangle))*sign(turnangle)
-	//avoiding edges is a bit of a nightmare
 	//what about a force attracting to the middle of the screen?
-
-	turnRate=(turnRate*.99)+(0.05f*max(0.0f,1.0f-(pow(edgelength*.0100f,2.0f)))*max(0.0f,90.0f-abs(edgeangle))*sign(edgeangle)); 
+	float radius=centre.distance(ofVec2f(position.x,position.y));
+	//angle from centre to bird position
+	edgeangle=(180.0f+(90.0f-(atan2(position.y-centre.y,position.x-centre.x)*RAD_TO_DEG)))-heading;
+	while (edgeangle>180.0f) edgeangle -=360.0f;
+	while (edgeangle<-180.0f) edgeangle +=360.0f;
+	turnRate=(turnRate*.995)+(pow(0.002f*radius,2)*edgeangle*0.01);
+	
+	//need: a function for generating the angle between things
+	
 
 	//strip it right back
 	//bird flying in circle