Draw the entity. @param owner the entity that owns this renderer. @param posX real world position (x) @param posY real world position (x) @param velX magnitude of the velocity vector in the x direction @param velY magnitude of the velocity vector in the y direction @param headX magnitude of the head
(BaseEntity owner, float posX, float posY, float velX, float velY, float headX, float headY, float etime)