Add textimage for levelcomplete and gamecomplete

`levelcomplete` and `gamecomplete` were hardcoded using textbox colors
which were offset by 1. This PR fixes that, no longer requiring
slightly-off colors, and instead adding a new property to textboxes
which tell the game to display either level complete or game complete.

desktop_version/src/Game.cpp

@@ -663,12 +663,13 @@ void Game::savecustomlevelstats(void)
 
 void Game::levelcomplete_textbox(void)
 {
-    graphics.createtextboxflipme("", -1, 12, 165, 165, 255);
+    graphics.createtextboxflipme("", -1, 12, TEXT_COLOUR("cyan"));
     graphics.addline("                                    ");
     graphics.addline("");
     graphics.addline("");
     graphics.textboxprintflags(PR_FONT_8X8);
     graphics.textboxcenterx();
+    graphics.setimage(TEXTIMAGE_LEVELCOMPLETE);
 }
 
 void Game::crewmate_textbox(const int color)
@@ -2861,12 +2862,13 @@ void Game::updatestate(void)
             setstatedelay(75);
             music.play(Music_PLENARY);
 
-            graphics.createtextboxflipme("", -1, 12, 164, 165, 255);
+            graphics.createtextboxflipme("", -1, 12, TEXT_COLOUR("cyan"));
             graphics.addline("                                    ");
             graphics.addline("");
             graphics.addline("");
             graphics.textboxprintflags(PR_FONT_8X8);
             graphics.textboxcenterx();
+            graphics.setimage(TEXTIMAGE_GAMECOMPLETE);
             break;
         case 3502:
         {

desktop_version/src/Graphics.cpp

@@ -944,7 +944,7 @@ void Graphics::drawgui(void)
             continue;
         }
 
-        if (textboxes[i].yp == 12 && textboxes[i].r == 165)
+        if (textboxes[i].image == TEXTIMAGE_LEVELCOMPLETE)
         {
             // Level complete
             const char* english = "Level Complete!";
@@ -981,7 +981,7 @@ void Graphics::drawgui(void)
                 }
             }
         }
-        else if (textboxes[i].yp == 12 && textboxes[i].g == 165)
+        else if (textboxes[i].image == TEXTIMAGE_GAMECOMPLETE)
         {
             // Game complete
             const char* english = "Game Complete!";
@@ -1430,6 +1430,17 @@ void Graphics::addsprite(int x, int y, int tile, int col)
     textboxes[m].addsprite(x, y, tile, col);
 }
 
+void Graphics::setimage(TextboxImage image)
+{
+    if (!INBOUNDS_VEC(m, textboxes))
+    {
+        vlog_error("setimage() out-of-bounds!");
+        return;
+    }
+
+    textboxes[m].setimage(image);
+}
+
 void Graphics::addline( const std::string& t )
 {
     if (!INBOUNDS_VEC(m, textboxes))

desktop_version/src/Graphics.h

@@ -124,6 +124,8 @@ public:
 
     void addsprite(int x, int y, int tile, int col);
 
+    void setimage(TextboxImage image);
+
     void textboxremove(void);
 
     void textboxremovefast(void);

desktop_version/src/Script.cpp

@@ -54,6 +54,7 @@ scriptclass::scriptclass(void)
     textbuttons = false;
     textlarge = false;
     textbox_sprites.clear();
+    textbox_image = TEXTIMAGE_NONE;
 }
 
 void scriptclass::add_default_colours(void)
@@ -530,6 +531,7 @@ void scriptclass::run(void)
                 textpadtowidth = 0;
                 textboxtimer = 0;
                 textbox_sprites.clear();
+                textbox_image = TEXTIMAGE_NONE;
 
                 translate_dialogue();
             }
@@ -709,6 +711,21 @@ void scriptclass::run(void)
                 sprite.col = ss_toi(words[4]);
                 textbox_sprites.push_back(sprite);
             }
+            else if (words[0] == "textimage")
+            {
+                if (words[1] == "levelcomplete")
+                {
+                    textbox_image = TEXTIMAGE_LEVELCOMPLETE;
+                }
+                else if (words[1] == "gamecomplete")
+                {
+                    textbox_image = TEXTIMAGE_GAMECOMPLETE;
+                }
+                else
+                {
+                    textbox_image = TEXTIMAGE_NONE;
+                }
+            }
             else if (words[0] == "flipme")
             {
                 textflipme = !textflipme;
@@ -745,6 +762,8 @@ void scriptclass::run(void)
                     graphics.addsprite(textbox_sprites[i].x, textbox_sprites[i].y, textbox_sprites[i].tile, textbox_sprites[i].col);
                 }
 
+                graphics.setimage(textbox_image);
+
                 // Some textbox formatting that can be set by translations...
                 if (textcentertext)
                 {

desktop_version/src/Script.h

@@ -125,6 +125,7 @@ public:
     bool textlarge;
     int textboxtimer;
     std::vector<TextboxSprite> textbox_sprites;
+    TextboxImage textbox_image;
 
     //Misc
     int i, j, k;

desktop_version/src/Textbox.cpp

@@ -30,6 +30,8 @@ textboxclass::textboxclass(void)
     fill_buttons = false;
 
     sprites.clear();
+
+    image = TEXTIMAGE_NONE;
 }
 
 void textboxclass::addsprite(int x, int y, int tile, int col)
@@ -42,6 +44,11 @@ void textboxclass::addsprite(int x, int y, int tile, int col)
     sprites.push_back(sprite);
 }
 
+void textboxclass::setimage(TextboxImage new_image)
+{
+    image = new_image;
+}
+
 void textboxclass::centerx(void)
 {
     resize();

desktop_version/src/Textbox.h

@@ -13,6 +13,13 @@ struct TextboxSprite
     int tile;
 };
 
+enum TextboxImage
+{
+    TEXTIMAGE_NONE,
+    TEXTIMAGE_LEVELCOMPLETE,
+    TEXTIMAGE_GAMECOMPLETE
+};
+
 class textboxclass
 {
 public:
@@ -20,6 +27,8 @@ public:
 
     void addsprite(int x, int y, int tile, int col);
 
+    void setimage(TextboxImage image);
+
     void centerx(void);
 
     void centery(void);
@@ -65,6 +74,7 @@ public:
     bool fill_buttons;
 
     std::vector<TextboxSprite> sprites;
+    TextboxImage image;
 };
 
 #endif /* TEXTBOX_H */