Wrongwarp: Randomised SMK character drivealong

Eggman always leads the pack

src/k_menu.h

@@ -1239,8 +1239,18 @@ void M_Statistics(INT32 choice);
 void M_DrawStatistics(void);
 boolean M_StatisticsInputs(INT32 ch);
 
+#define MAXWRONGPLAYER MAXSPLITSCREENPLAYERS
+#define WRONGPLAYEROFFSCREEN 48
+
 extern struct wrongwarp_s {
 	INT32 ticker;
+	tic_t delaytowrongplayer;
+	struct wrongplayer_s
+	{
+		UINT8 skin;
+		INT16 across;
+		boolean spinout;
+	} wrongplayers[MAXWRONGPLAYER];
 } wrongwarp;
 
 void M_WrongWarp(INT32 choice);

src/k_menudraw.c

@@ -5920,6 +5920,26 @@ static INT32 M_WrongWarpFallingHelper(INT32 y, INT32 falltime)
 	return y;
 }
 
+static void M_DrawWrongPlayer(UINT8 i)
+{
+#define wrongpl wrongwarp.wrongplayers[i]
+	if (wrongpl.skin >= numskins)
+		return;
+
+	UINT8 *colormap = R_GetTranslationColormap(wrongpl.skin, skins[wrongpl.skin].prefcolor, GTC_MENUCACHE);
+
+	M_DrawCharacterSprite(
+		wrongpl.across,
+		160 - ((i & 1) ? 0 : 32),
+		wrongpl.skin,
+		wrongpl.spinout ? SPR2_SPIN : SPR2_SLWN,
+		wrongpl.spinout ? ((wrongpl.across/8) & 7) : 6,
+		(wrongwarp.ticker+i),
+		0, colormap
+	);
+#undef wrongpl
+}
+
 void M_DrawWrongWarp(void)
 {
 	INT32 titleoffset = 0, titlewidth, x, y;
@@ -5984,6 +6004,17 @@ void M_DrawWrongWarp(void)
 
 	V_DrawFadeScreen(31, min((wrongwarp.ticker - 2*TICRATE/3), 5));
 
+	// SMK title screen recreation!?
+
+	if (wrongwarp.ticker >= 2*TICRATE)
+	{
+		// Done as four calls and not a loop for the sake of render order
+		M_DrawWrongPlayer(0);
+		M_DrawWrongPlayer(2);
+		M_DrawWrongPlayer(1);
+		M_DrawWrongPlayer(3);
+	}
+
 	y = 20;
 
 	x = BASEVIDWIDTH - 8;

src/menus/extras-wrong.c

@@ -3,6 +3,8 @@
 
 #include "../k_menu.h"
 #include "../s_sound.h"
+#include "../m_random.h"
+#include "../r_skins.h"
 
 struct wrongwarp_s wrongwarp;
 
@@ -26,10 +28,95 @@ void M_WrongWarp(INT32 choice)
 
 static void M_WrongWarpTick(void)
 {
+	static boolean firsteggman = true;
+
+	UINT8 i, j;
+
 	wrongwarp.ticker++;
+	if (wrongwarp.ticker < 2*TICRATE)
+		return;
 
 	if (wrongwarp.ticker == 2*TICRATE)
+	{
 		S_ShowMusicCredit();
+
+		for (i = 0; i < MAXWRONGPLAYER; i++)
+			wrongwarp.wrongplayers[i].skin = MAXSKINS;
+
+		firsteggman = true;
+	}
+
+	// SMK title screen recreation!?
+
+	for (i = 0; i < MAXWRONGPLAYER; i++)
+	{
+		if (wrongwarp.wrongplayers[i].skin == MAXSKINS)
+			continue;
+
+		wrongwarp.wrongplayers[i].across += 5;
+		if (wrongwarp.wrongplayers[i].across < BASEVIDWIDTH + WRONGPLAYEROFFSCREEN)
+			continue;
+
+		wrongwarp.wrongplayers[i].skin = MAXSKINS;
+	}
+
+	if (wrongwarp.delaytowrongplayer)
+	{
+		wrongwarp.delaytowrongplayer--;
+		return;
+	}
+
+	wrongwarp.delaytowrongplayer = M_RandomRange(TICRATE/3, 2*TICRATE/3);
+
+	if (wrongwarp.ticker == 2*TICRATE)
+		return;
+
+	UINT32 rskin = 0;
+
+	if (firsteggman == true)
+	{
+		// Eggman always leads the pack. It's not Sonic's game anymore...
+		firsteggman = false;
+
+		i = 0;
+		wrongwarp.wrongplayers[i].spinout = false;
+	}
+	else
+	{
+		rskin = R_GetLocalRandomSkin();
+
+		for (i = 0; i < MAXWRONGPLAYER; i++)
+		{
+			// Already in use.
+			if (wrongwarp.wrongplayers[i].skin == rskin)
+				return;
+
+			// Slot isn't free.
+			if (wrongwarp.wrongplayers[i].skin != MAXSKINS)
+				continue;
+
+			break;
+		}
+
+		// No free slots.
+		if (i == MAXWRONGPLAYER)
+			return;
+
+		// Check to see if any later entry uses the skin too
+		for (j = i+1; j < MAXWRONGPLAYER; j++)
+		{
+			if (wrongwarp.wrongplayers[j].skin != rskin)
+				continue;
+
+			return;
+		}
+
+		wrongwarp.wrongplayers[i].spinout = M_RandomChance(FRACUNIT/10);
+	}
+
+	// Add the new character!
+	wrongwarp.wrongplayers[i].skin = rskin;
+	wrongwarp.wrongplayers[i].across = -WRONGPLAYEROFFSCREEN;
 }
 
 static boolean M_WrongWarpInputs(INT32 ch)