From 8a4ed42ab144642f278620e48973b1e37637b4fb Mon Sep 17 00:00:00 2001
From: Anna Wiggins <annabunches@gmail.com>
Date: Wed, 6 Jul 2011 16:47:34 -0400
Subject: [PATCH] Added some code for disabling button visually, but it doesn't
 quite work

---
 game.cpp       |  3 ++-
 menubutton.cpp | 18 ++++++++++++++++--
 menubutton.h   |  4 +++-
 3 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/game.cpp b/game.cpp
index a1be683..0dd8aff 100644
--- a/game.cpp
+++ b/game.cpp
@@ -373,7 +373,8 @@ void Game::mode_changed()
 	 cursor != buttons.end(); cursor++)
     {
 	(*cursor)->set_state(data.get_mode(), data.get_build_type(),
-			     data.get_current_vertex());
+			     data.get_current_vertex(),
+			     data.can_build(data.get_build_type()));
     }
 
 }
diff --git a/menubutton.cpp b/menubutton.cpp
index e86e1e0..94c7232 100644
--- a/menubutton.cpp
+++ b/menubutton.cpp
@@ -24,6 +24,7 @@ bool MenuButton::init()
     hover = false;
     selected = false;
     visible = true;
+    enabled = true;
     return true;
 }
 
@@ -54,7 +55,8 @@ void MenuButton::render(SDL_Surface* display)
     if (!visible) return;
 
     int colour_to_use = colour;
-    if (selected) colour_to_use = selected_colour;
+    if (!enabled) colour_to_use = 0xbbbbbb;
+    else if (selected) colour_to_use = selected_colour;
     else if (hover) colour_to_use = hover_colour;
 
     SDL_Rect pen = {x, y, 80, 20};
@@ -75,10 +77,12 @@ bool MenuButton::is_at(int test_x, int test_y)
 }
 
 
-void MenuButton::set_state(Mode mode, VertexType type, GameVertex* current)
+void MenuButton::set_state(Mode mode, VertexType type, GameVertex* current,
+			   bool can_build)
 {
     selected = false;
     visible = false;
+    enabled = true;
 
     if (action & BUTTON_END_TURN)
     {
@@ -108,6 +112,16 @@ void MenuButton::set_state(Mode mode, VertexType type, GameVertex* current)
     if (mode & MODE_BUILD && action & (BUTTON_BUILD_ATTACKER |
 				       BUTTON_BUILD_DEFENDER | 
 				       BUTTON_BUILD_PRODUCER))
+    {
 	visible = true;
+
+	if (!can_build &&
+	    ((action == BUTTON_BUILD_ATTACKER && type == VERTEX_ATTACKER) ||
+	     (action == BUTTON_BUILD_DEFENDER && type == VERTEX_DEFENDER) ||
+	     (action == BUTTON_BUILD_PRODUCER && type == VERTEX_PRODUCER)))
+	    enabled = false;
+    }
+
+    if (action == BUTTON_ATTACK && current->attacked) enabled = false;
 }
 
diff --git a/menubutton.h b/menubutton.h
index 794316a..5d79b7f 100644
--- a/menubutton.h
+++ b/menubutton.h
@@ -44,7 +44,8 @@ class MenuButton : public Entity
     // To get some complexity out of the Game class, let's teach MenuButton
     // how to handle her own state, based on the current Mode and VertexType
     // This isn't wonderful coupling, but it'll do
-    void set_state(Mode mode, VertexType type, GameVertex* current);
+    void set_state(Mode mode, VertexType type, GameVertex* current,
+		   bool can_build);
 
  private:
     string text;
@@ -59,6 +60,7 @@ class MenuButton : public Entity
     bool hover;
     bool selected;
     bool visible;
+    bool enabled;
 
     TTF_Font* font;