enemy comes to you when in his radius

Enemy.cpp

@@ -1,12 +1,79 @@
+#define _USE_MATH_DEFINES
+#include <cmath>
+
 #include "Enemy.h"
+#include "Model.h"
+#include <iostream>
 
 
-
-Enemy::Enemy()
+Enemy::Enemy(const std::string &fileName,
+	const Vec3f &position,
+	Vec3f &rotation,
+	const float &scale,
+	const bool &hasCollision)
 {
+	model = Model::load(fileName);
+	this->position = position;
+	this->rotation = rotation;
+	this->scale = scale;
+	this->canCollide = hasCollision;
+	target = position;
+	speed = 1;
+	radius = 10;
+	hasTarget = false;
 }
 
 
 Enemy::~Enemy()
 {
+	if (model)
+		Model::unload(model);
+}
+
+void Enemy::draw()
+{
+	Entity::draw();
+	glPushMatrix();
+	
+	glTranslatef(position.x, position.y, position.z);
+
+	glBegin(GL_LINE_LOOP);
+	for (int i = 0; i < 360; i++)
+	{
+		//convert degrees into radians
+		float degInRad = i*(M_PI / 180.0);
+		glVertex3f(cos(degInRad)*radius, 1*scale,sin(degInRad)*radius);
+	}
+	glEnd();
+
+	glPopMatrix();
+}
+
+void Enemy::update(float delta)
+{
+	if (hasTarget)
+	{
+		//just 2d walking
+		float dx, dz, length;
+
+		dx = target.x - position.x;
+		dz = target.z - position.z;
+
+		length = sqrt(dx*dx + dz*dz);
+		dx /= length;
+		dz /= length;
+
+		dx *= speed*delta;
+		dz *= speed*delta;
+
+		position.x += dx;
+		position.z += dz;		
+	}	
+
+	/*rotation.y += 10.0f;
+	if (rotation.y >= 360.0f)
+		rotation.y = 0.0f;*/
+	//std::cout << atan2f(target.z - position.z, target.x - position.x) * 180 / M_PI << std::endl;
+	//rotation.y = atan2f(target.z - position.z, target.x - position.x) * 180 / M_PI ;
+
 }