Adding more dynamic handling

rules/game_process.tex

@@ -115,7 +115,7 @@ \subsubsection{Invalid Goal}
 
 A goal is invalid (that is, it can never be awarded) in the following circumstances:
 \begin{enumerate}
-    \item When an indirect kick is required but has not occurred (see~\cref{sec:indirect_kick}).
+    \item When an indirect kick is required but has not occurred (see~\cref{sec:indirect_kick_champions}).
     \item When the last contact of the ball was with an attacking robot that played the ball with the arms/hands as defined in \cref{sec:hand_ball}.
       However, an own goal may be scored by any defending robot playing with arms/hands.
     \item When a team scores on themselves and there are no opponent robots on the field that are active (a definition of \emph{active} is given in \cref{sec:fallenrobots}).
@@ -124,8 +124,42 @@ \subsubsection{Invalid Goal}
 In these cases a goal is not scored (that is, the goal is ruled invalid), and the game will proceed with a Goal Kick (\cf \cref{sec:free_kick}).
 The head referee should also advise why the goal is invalid, such as by calling ``Not indirect'', ``Played with hands'' or ``No own goal''.
 
-\subsubsection{Indirect Kick}
-\label{sec:indirect_kick}
+\subsubsection{Indirect Kick - Champions Cup}
+\label{sec:indirect_kick_champions}
+
+Both teams may only score a goal through two distinct ball contacts involving different robots within its own team following any affected start or restart in the \texttt{playing} phase, regardless of the initiator of the set play/free kick:
+
+\begin{itemize}
+  \item A robot may not score a goal from a direct kick, including via deflections.
+  \item Set plays considered to be indirect are \texttt{Kick-off}, \texttt{Kick-in}, \texttt{Pushing free kick}, \texttt{Corner kick} and \texttt{Goal kick} or after an unsuccessful \texttt{Penalty kick}.
+  \item The ball must be deliberately played-at a second time by another robot of its own team before a goal may be scored.
+    A deliberate play at the ball includes successfully kicking the ball, dribbling the ball or the goalkeeper playing at the ball with its hands.
+  \item If an indirect free kick is kicked directly into the opponent's goal, the goal does not count and a \texttt{Goal kick} is awarded.
+  \item Note that an own-goal may always be scored without requiring an indirect kick.
+  \item A direct kick is allowed for the duration of the penalty kick, but this rule still applies after this kick. A contact in the penalty kick count among this rule.  
+\end{itemize}
+
+\begin{description}
+  \item[Example 1:] Player 2 (of the red team) kicks the ball to Player~3 (of the red team), who then kicks the ball into the blue-team's goal.
+  This is a successful indirect kick, and the goal counts.
+  \item[Example 2:] Player 2 (of the red team) kicks the ball at the goal, and it is deflected off the side of the foot of a blue-team's robot into the goal.
+    This is \textit{not} an indirect kick, the goal does not count and a \texttt{Goal kick} is awarded to the blue team.
+  \item[Example 3:] Player 2 (of the red team) kicks the ball ``upfield''.
+    A blue-team robot kicks the ball a short distance, after which Player~2 kicks the ball again into the blue team's goal.
+    This is \textit{not} an indirect kick, the goal does not count and a \texttt{Goal kick} is awarded to the blue team.
+  \item[Example 4:] Player 2 (of the red team), walks up to and dribbles the ball.
+    Player~2 then stop, and visibly back away from the ball, before approaching to dribble a \textit{second} time. The robot then scores. 
+    This is \textit{not} an indirect kick, the goal does not count and a \texttt{Goal kick} is awarded to the blue team.
+  \item[Example 5:] Player 2 (of the red team) kicks the ball ``upfield''.
+  A blue-team robot kicks the ball again into the red team's goal.
+  This is \textit{not} an indirect kick, the goal does not count and a \texttt{Goal kick} is awarded to the red team.
+  \item[Example 6:] Player 2 (of the red team) is awarded a \texttt{Penalty kick} and kicks the ball towards the blue-team's goal. The goalkeeper blocks the ball. The referee then calls ``Ball Free``. 
+  Player 2 (of the red team) kicks the ball again and score. 
+  This is \textit{not} an indirect kick, the goal does not count and a \texttt{Goal kick} is awarded to the blue team.
+\end{description}
+
+\subsubsection{Indirect Kick - Challenge Shield}
+\label{sec:indirect_kick_challenger}
 
 The attacking team may only score a goal via indirect kick from any restart into \texttt{playing} from a free kick.
 
@@ -215,7 +249,7 @@ \subsection{Kick-off}
 The head referee must signal this from the T-junction of the halfway line.
 \qty{\PlayingDelayTime}{\second} after the head referee has signaled the kick-off, the robots' state is switched to \texttt{playing} by the GameController (regardless of when the ball comes into play).
 
-A goal may be scored directly from a kick-off.
+A goal may be scored directly from a kick-off for the Challenge Shield. However, for the Champions Cup the indirect kick rule applies and the goal does \textit{not} count.
 
 \subsubsection{Ball in Play}