Initial commit

src/main/java/electroblob/wizardry/client/renderer/RayHelper.java

@@ -0,0 +1,48 @@
+package electroblob.wizardry.client.renderer;
+
+/** Instances of this class can calculate their distance from the camera viewpoint and sort themselves accordingly. */
+class RayHelper implements Comparable<RayHelper> {
+
+	int ordinal;
+	double x1, y1, z1;
+	double x2, y2, z2;
+	double offsetX, offsetY, offsetZ;
+	
+	RayHelper(int ordinal, double x1, double y1, double z1, double x2, double y2, double z2, double offsetX, double offsetY, double offsetZ){
+		this.ordinal = ordinal;
+		this.x1 = x1;
+		this.y1 = y1;
+		this.z1 = z1;
+		this.x2 = x2;
+		this.y2 = y2;
+		this.z2 = z2;
+		this.offsetX = offsetX;
+		this.offsetY = offsetY;
+		this.offsetZ = offsetZ;
+	}
+	
+	double getDistanceFromViewpoint(){
+		
+		double midX = (x1+x2)/2;
+		double midY = (y1+y2)/2;
+		double midZ = (z1+z2)/2;
+		
+		double absoluteX = offsetX+midX;
+		double absoluteY = offsetY+midY;
+		double absoluteZ = offsetZ+midZ;
+		
+		return Math.sqrt(absoluteX*absoluteX + absoluteY*absoluteY + absoluteZ*absoluteZ);
+	}
+	
+	@Override
+	public int compareTo(RayHelper ray){
+		if(this.getDistanceFromViewpoint() > ray.getDistanceFromViewpoint()){
+			return -1;
+		}else if(this.getDistanceFromViewpoint() < ray.getDistanceFromViewpoint()){
+			return 1;
+		}else{
+			return 0;
+		}
+	}
+
+}