From 6681cf2d0bcbca5785c0173f4ef5065423aba1a4 Mon Sep 17 00:00:00 2001
From: Ian C <ianc@noddybox.co.uk>
Date: Thu, 18 Oct 2018 07:20:23 +0000
Subject: Tweaks to catwalk demo.

---
 xd.c | 47 ++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 44 insertions(+), 3 deletions(-)

diff --git a/xd.c b/xd.c
index 3615634..47daed2 100644
--- a/xd.c
+++ b/xd.c
@@ -262,7 +262,7 @@ static DemoInfo		demotbl[NO_DEMOS]=
 				UsesPixmap
 			    },
 			    {
-				"Catwalk trench",
+				"Catwalk trench (LMB to change draw mode)",
 				CatwalkDemo,
 				UsesPixmap
 			    },
@@ -3827,6 +3827,8 @@ static void CatwalkDemo(void)
 
     static int move=0;
 
+    static int drawmode = MODE_EDGE;
+
     static int init=FALSE;
 
     int f,r;
@@ -3844,7 +3846,8 @@ static void CatwalkDemo(void)
 	    catwalk[f].no_poly = 1;
 
 	    catwalk[f].origin.x = 0;
-	    catwalk[f].origin.y = RND2(TRENCH_Y_BOT, TRENCH_Y_TOP + TRENCH_CWH);
+	    catwalk[f].origin.y = RND2(TRENCH_Y_BOT - TRENCH_CWH,
+				       TRENCH_Y_TOP + TRENCH_CWH);
 	    catwalk[f].origin.z = TRENCH_Z_MAX - 1500 * f;
 
 	    catwalk[f].ps = cw_point;
@@ -3867,6 +3870,43 @@ static void CatwalkDemo(void)
 	init=TRUE;
     }
 
+    if (mouse_b&Button1Mask)
+    {
+	static time_t bounce=0;
+
+	if (bounce!=time(NULL))
+	{
+	    drawmode = (drawmode + 1) % 3;
+
+	    switch(drawmode)
+	    {
+	    	case MODE_WIRE:
+		    trench.mode = MODE_WIRE;
+		    for(f = 0; f < no_catwalk; f++)
+		    {
+		    	catwalk[f].mode = MODE_WIRE;
+		    }
+		    break;
+	    	case MODE_EDGE:
+		    trench.mode = MODE_WIRE;
+		    for(f = 0; f < no_catwalk; f++)
+		    {
+		    	catwalk[f].mode = MODE_EDGE;
+		    }
+		    break;
+	    	case MODE_SOLID:
+		    trench.mode = MODE_SOLID;
+		    for(f = 0; f < no_catwalk; f++)
+		    {
+		    	catwalk[f].mode = MODE_SOLID;
+		    }
+		    break;
+	    }
+
+	    bounce=time(NULL);
+	}
+    }
+
     Cls();
 
     DrawObj(&trench,col);
@@ -3890,7 +3930,8 @@ static void CatwalkDemo(void)
 	catwalk[0] = t;
 
 	catwalk[0].origin.z = TRENCH_Z_MAX;
-	catwalk[0].origin.y = RND2(TRENCH_Y_BOT, TRENCH_Y_TOP + TRENCH_CWH);
+	catwalk[0].origin.y = RND2(TRENCH_Y_BOT - TRENCH_CWH,
+				   TRENCH_Y_TOP + TRENCH_CWH);
     }
 }
 
-- 
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