protected void drawSkillTreeNodes(){
for(int i = 0; i < skillTree.Count; i++){
Rect nodePos = nodePositions[i];
nodePos.x = nodePositions[i].x + position.x;
nodePos.y = nodePositions[i].y + position.y;
skillTree[i].position = nodePos;
GUI.DrawTexture(skillTree[i].position, skillTree[i].icon);
}
}