Give bonus points to 1st, 2nd, and 3rd place.

src/k_grandprix.c

@@ -21,13 +21,75 @@
 
 struct grandprixinfo grandprixinfo;
 
+UINT8 K_BotStartingDifficulty(SINT8 value)
+{
+	// startingdifficulty: Easy = 3, Normal = 6, Hard = 9
+	SINT8 difficulty = (value + 1) * 3;
+
+	if (difficulty > MAXBOTDIFFICULTY)
+	{
+		difficulty = MAXBOTDIFFICULTY;
+	}
+	else if (difficulty < 1)
+	{
+		difficulty = 1;
+	}
+
+	return difficulty;
+}
+
+INT16 K_CalculateGPRankPoints(UINT8 position, UINT8 numplayers)
+{
+	INT16 points;
+
+	if (position >= numplayers || position == 0)
+	{
+		// Invalid position, no points
+		return 0;
+	}
+
+	points = numplayers - position;
+
+	// Give bonus to high-ranking players, depending on player count
+	// This rounds out the point gain when you get 1st every race,
+	// and gives bots able to catch up in points if a player gets an early lead.
+	// The maximum points you can get in a cup is: ((number of players - 1) + (max extra points)) * (number of races)
+	// 8P: (7 + 3) * 5 = 50 maximum points
+	// 12P: (11 + 3) * 5 = 70 maximum points
+	// 16P: (15 + 3) * 5 = 90 maximum points
+	switch (numplayers)
+	{
+		case 0: case 1: case 2: // 1v1
+			break; // No bonus needed.
+		case 3: case 4: // 3-4P
+			if (position == 1) { points += 1; } // 1st gets +1 extra point
+			break;
+		case 5: case 6:
+			if (position == 1) { points += 2; } // 1st gets +2 extra points
+			else if (position == 2) { points += 1; } // 2nd gets +1 extra point
+			break;
+		default: // Normal matches
+			if (position == 1) { points += 3; } // 1st gets +3 extra points
+			else if (position == 2) { points += 2; } // 2nd gets +2 extra points
+			else if (position == 3) { points += 1; } // 3rd gets +1 extra point
+			break;
+	}
+
+	// somehow underflowed?
+	if (points < 0)
+	{
+		points = 0;
+	}
+
+	return points;
+}
+
 void K_InitGrandPrixBots(void)
 {
 	const char *defaultbotskinname = "eggrobo";
 	SINT8 defaultbotskin = R_SkinAvailable(defaultbotskinname);
 
-	// startingdifficulty: Easy = 3, Normal = 6, Hard = 9
+	const UINT8 startingdifficulty = K_BotStartingDifficulty(grandprixinfo.gamespeed);
-	const UINT8 startingdifficulty = min(MAXBOTDIFFICULTY, (gamespeed + 1) * 3);
 	UINT8 difficultylevels[MAXPLAYERS];
 
 	UINT8 playercount = 8;

src/k_grandprix.h

@@ -15,6 +15,8 @@ extern struct grandprixinfo
 	boolean wonround; ///< If false, then we retry the map instead of going to the next.
 } grandprixinfo;
 
+UINT8 K_BotStartingDifficulty(SINT8 value);
+INT16 K_CalculateGPRankPoints(UINT8 position, UINT8 numplayers);
 void K_InitGrandPrixBots(void);
 void K_FakeBotResults(player_t *bot);
 void K_PlayerLoseLife(player_t *player);

src/y_inter.c

@@ -308,17 +308,21 @@ static void Y_CalculateMatchData(UINT8 rankingsmode, void (*comparison)(INT32))
 		data.match.name[data.match.numplayers] = player_names[i];
 
 		if (data.match.numplayers && (data.match.val[data.match.numplayers] == data.match.val[data.match.numplayers-1]))
+		{
 			data.match.pos[data.match.numplayers] = data.match.pos[data.match.numplayers-1];
+		}
 		else
+		{
 			data.match.pos[data.match.numplayers] = data.match.numplayers+1;
+		}
 
 		if ((powertype == PWRLV_DISABLED)
 			&& (!rankingsmode)
 			&& !(players[i].pflags & PF_TIMEOVER)
 			&& (data.match.pos[data.match.numplayers] < (numplayersingame + numgriefers)))
 		{
-			// Single player rankings (grand prix). Online rank is handled below.
+			// Online rank is handled further below in this file.
-			data.match.increase[i] = (numplayersingame + numgriefers) - data.match.pos[data.match.numplayers];
+			data.match.increase[i] = K_CalculateGPRankPoints(data.match.pos[data.match.numplayers], numplayersingame + numgriefers);
 			players[i].score += data.match.increase[i];
 		}