Small changes in order to get the demos to work. Alien demo runs. Marine

and Predator demos used a different HUD font.

Changes that need to be made for demo versions:
1. avp/langenum.h needs to be rebuilt for each demo (easy)
2. Marine and Predator demos need to use a different HUD font
3. There may be other minor differences with enums, etc.

src/avp/gamecmds.cpp

@@ -13,7 +13,6 @@
 
 extern "C"
 {
-#include "3dc.h"
 #include "module.h"
 #include "inline.h"
 

src/avp/language.c

@@ -71,6 +71,9 @@ void InitTextStrings(void)
 	for (i=1; i<MAX_NO_OF_TEXTSTRINGS; i++)
 	{	
 		/* scan for a quote mark */
+		if (*textPtr == 0) /* TODO: probably a broken hack (added for predator demo)... */
+			break;
+
 		while (*textPtr++ != '"');
 
 		/* now pointing to a text string after quote mark*/
@@ -84,6 +87,7 @@ void InitTextStrings(void)
 
 		/* change quote mark to zero terminator */
 		*textPtr = 0;
+		textPtr++;
 
 		#if SupportWindows95
 		AddToTable( TextStringPtr[i] );

src/avp/win95/frontend/avp_menus.h

@@ -1,15 +1,20 @@
 #ifndef _included_AvP_Menus_h_
 #define _included_AvP_Menus_h_
 
+#ifndef MARINE_DEMO
 #define MARINE_DEMO 0
+#endif
+
+#ifndef PREDATOR_DEMO
 #define PREDATOR_DEMO 0
+#endif
+
+#ifndef ALIEN_DEMO
 #define ALIEN_DEMO 0
- // Edmond modified for Mplayer Demo
- #ifdef MPLAYER_DEMO
- #define DEATHMATCH_DEMO 1
- #else
- #define DEATHMATCH_DEMO 0 // more multiplayer-only demo really
- #endif
+#endif
+
+#define DEATHMATCH_DEMO 0 // more multiplayer-only demo really
+
 
 #ifdef AVP_DEBUG_VERSION
 	#define CONSOLE_DEBUGGING_COMMANDS_ACTIVATED 1

src/avp/win95/npcsetup.cpp

@@ -558,7 +558,9 @@ void InitNPCs(RIFFHANDLE h)
 			}
 		}
 	}
-	#if 1
+
+/* predator disk not included in demos */
+#if !(PREDATOR_DEMO||MARINE_DEMO||ALIEN_DEMO)
 	if(AvP.PlayerType==I_Predator || Load_HNPC[HNPC_Predator])
 	{
 		//need to load the disk hierarchy
@@ -569,7 +571,10 @@ void InitNPCs(RIFFHANDLE h)
 		}
 
 	}
+#endif
 
+/* i believe this was added for the gold edition */
+#if !(PREDATOR_DEMO||MARINE_DEMO||ALIEN_DEMO)//||REGULAR_EDITION /* TODO */
 	if(AvP.PlayerType==I_Marine || Load_HNPC[HNPC_Marine])
 	{
 		//need to load the mdisk hierarchy
@@ -580,7 +585,7 @@ void InitNPCs(RIFFHANDLE h)
 		}
 
 	}
-	#endif
+#endif
 	
 	
 	// see what we already have, unloading what we don't need, and ensuring we don't load a npc twice

src/main.c

@@ -573,7 +573,17 @@ int main(int argc, char *argv[])
 }
 
 	AvP.CurrentEnv = AvP.StartingEnv = 0; /* are these even used? */
-	
+
+#if ALIEN_DEMO
+	AvP.PlayerType = I_Alien;
+	SetLevelToLoad(AVP_ENVIRONMENT_INVASION_A);
+#elif PREDATOR_DEMO
+	AvP.PlayerType = I_Predator;
+	SetLevelToLoad(AVP_ENVIRONMENT_INVASION_P);
+#elif MARINE_DEMO
+	AvP.PlayerType = I_Marine;
+	SetLevelToLoad(AVP_ENVIRONMENT_INVASION);
+#else		
 //	AvP.PlayerType = I_Alien;
 //	SetLevelToLoad(AVP_ENVIRONMENT_TEMPLE); /* starting alien level */
 	
@@ -586,6 +596,7 @@ int main(int argc, char *argv[])
 //	SetLevelToLoad(AVP_ENVIRONMENT_LEADWORKS_MP); /* multiplayer */
 
 //	SetLevelToLoad(AVP_ENVIRONMENT_E3DEMOSP); /* demo level */
+#endif
 
 // while(AvP_MainMenus()) {
 

src/opengl.c

@@ -1536,6 +1536,8 @@ void D3D_RenderHUDString(char *stringPtr,int x,int y,int colour)
 {
 	struct VertexTag quadVertices[4];
 
+if (stringPtr == NULL) return;
+
 	quadVertices[0].Y = y-1;
 	quadVertices[1].Y = y-1;
 	quadVertices[2].Y = y + HUD_FONT_HEIGHT + 1;
@@ -1581,6 +1583,7 @@ void D3D_RenderHUDString_Clipped(char *stringPtr,int x,int y,int colour)
 	struct VertexTag quadVertices[4];
 
 // 	LOCALASSERT(y<=0);
+if (stringPtr == NULL) return;
 
 	CheckFilteringModeIsCorrect(FILTERING_BILINEAR_OFF);
 
@@ -1628,6 +1631,8 @@ void D3D_RenderHUDString_Centred(char *stringPtr, int centreX, int y, int colour
 	int x, length = 0;
 	char *ptr = stringPtr;
 	struct VertexTag quadVertices[4];
+
+if (stringPtr == NULL) return;
 	
 	while(*ptr)
 	{
@@ -1679,6 +1684,8 @@ void D3D_RenderHUDString_Centred(char *stringPtr, int centreX, int y, int colour
 
 void RenderString(char *stringPtr, int x, int y, int colour)
 {
+if (stringPtr == NULL) return;
+
 	D3D_RenderHUDString(stringPtr,x,y,colour);
 }
 
@@ -1686,6 +1693,8 @@ void RenderStringCentred(char *stringPtr, int centreX, int y, int colour)
 {
 	int length = 0;
 	char *ptr = stringPtr;
+	
+if (stringPtr == NULL) return;
 
 	while(*ptr)
 	{
@@ -1699,6 +1708,8 @@ void RenderStringVertically(char *stringPtr, int centreX, int bottomY, int colou
 	struct VertexTag quadVertices[4];
 	int y = bottomY;
 
+if (stringPtr == NULL) return;
+ 
 	quadVertices[0].X = centreX - (HUD_FONT_HEIGHT/2) - 1;
 	quadVertices[1].X = quadVertices[0].X;
 	quadVertices[2].X = quadVertices[0].X+2+HUD_FONT_HEIGHT*1;