Added labels that display energy costs when building

Makefile

@@ -8,7 +8,7 @@ OBJECTS=\
 main.o \
 drawutils.o mathutils.o timer.o itos.o \
 graph.o gamedata.o player.o vertex.o gamevertex.o \
-entity.o menubutton.o \
+entity.o menubutton.o label.o \
 mainevent.o gamestate.o game.o titlescreen.o
 
 all: $(PROJECT)

TODO

@@ -1,6 +1,5 @@
 Some things that need doing:
 
-* Defenders should add to armor score, attackers to attack score, producers boost each other's energy production... all scaled by distance on the graph
+* Defenders should add to armor score, attackers to attack score, producers boost each other's energy production... all scaled by distance on the graph?
-* Display energy costs...
 * OpenGL, of course... can we start with a rendering in the corner?
 * Better art!

game.cpp

@@ -25,6 +25,13 @@ Game::~Game()
     {
 	delete *cursor;
     }
+
+    for (map<VertexType,Label*>::iterator cursor = costs.begin();
+	 cursor != costs.end(); cursor++)
+    {
+	delete (*cursor).second;
+    }
+
 }
 
 
@@ -80,6 +87,10 @@ bool Game::init()
 	}
     }
 
+    costs[VERTEX_ATTACKER] = new Label("", col3 - 10, row1 + 2, font);
+    costs[VERTEX_DEFENDER] = new Label("", col3 - 10, row2 + 2, font);
+    costs[VERTEX_PRODUCER] = new Label("", col3 - 10, row3 + 2, font);
+
     mode_changed();
     data.set_first_turn();
 
@@ -95,6 +106,37 @@ void Game::iterate()
     {
 	(*cursor)->iterate();
     }    
+
+    // set the costs
+    Label* tmp_label;
+
+    if (data.get_mode() & MODE_BUILD && data.get_turn()->has_played())
+    {
+	tmp_label = costs[VERTEX_ATTACKER];
+	tmp_label->set_text(itos(data.get_energy_cost(VERTEX_ATTACKER))
+			    + " energy");
+	tmp_label = costs[VERTEX_DEFENDER];
+	tmp_label->set_text(itos(data.get_energy_cost(VERTEX_DEFENDER))
+			    + " energy");
+	tmp_label = costs[VERTEX_PRODUCER];
+	tmp_label->set_text(itos(data.get_energy_cost(VERTEX_PRODUCER))
+			    + " energy");
+    }
+    else
+    {
+	tmp_label = costs[VERTEX_ATTACKER];
+	tmp_label->set_text("");
+	tmp_label = costs[VERTEX_DEFENDER];
+	tmp_label->set_text("");
+	tmp_label = costs[VERTEX_PRODUCER];
+	tmp_label->set_text("");
+    }
+
+    for (map<VertexType,Label*>::iterator cursor = costs.begin();
+	 cursor != costs.end(); cursor++)
+    {
+	(*cursor).second->iterate();
+    }
 }
 
 
@@ -190,6 +232,13 @@ void Game::render()
 	(*cursor)->render(display);
     }
 
+    for (map<VertexType,Label*>::iterator cursor = costs.begin();
+	 cursor != costs.end(); cursor++)
+    {
+	(*cursor).second->render(display);
+    }
+
+
     SDL_Flip(display);
 }
 

game.h

@@ -10,12 +10,15 @@
 #include "gamedata.h"
 #include "gamestate.h"
 #include "menubutton.h"
+#include "label.h"
 #include <SDL_ttf.h>
 #include <list>
 #include <stack>
+#include <map>
 
 using std::list;
 using std::stack;
+using std::map;
 
 
 class Game : public GameState
@@ -55,8 +58,9 @@ class Game : public GameState
     SDL_Surface* background;
     TTF_Font* font;
 
-    // menu buttons
+    list<MenuButton*> buttons; // the buttons!
-    list<MenuButton*> buttons;
+
+    map<VertexType,Label*> costs; // simple renderables
 
     static int NODE_RADIUS;
 

label.cpp

@@ -0,0 +1,16 @@
+#include "label.h"
+#include "drawutils.h"
+
+Label::Label(string text, int x, int y, TTF_Font* font, int colour)
+{
+    this->text = text;
+    this->font = font;
+    this->colour = colour;
+    this->x = x;
+    this->y = y;
+}
+    
+void Label::render(SDL_Surface* display)
+{
+    if (text != "") DrawUtils::draw_text(display, text, x, y, font, colour);
+}

label.h

@@ -0,0 +1,38 @@
+/* This widget roughly mimics a "Label" from GTK.
+ * It lets us put a writable text area at a particular part of
+ * the screen, and then write to it / change its text as we like
+ */
+
+#ifndef _LABEL_H_
+#define _LABEL_H_
+
+#include "entity.h"
+#include <SDL_ttf.h>
+#include <string>
+
+using std::string;
+
+class Label : public Entity
+{
+ public:
+    Label(string text, int x, int y, TTF_Font* font = NULL,
+	  int colour = 0x000000);
+    
+    bool init() {}
+    void render(SDL_Surface* display);
+    void iterate() {}
+
+    string get_text() const { return text; }
+
+    void set_text(string new_text) { text = new_text; }
+    void set_colour(int new_colour) { colour = new_colour; }
+
+ private:
+    string text;
+    TTF_Font* font;
+    int x;
+    int y;
+    int colour;
+};
+
+#endif

player.cpp

@@ -5,6 +5,7 @@ Player::Player(string name, unsigned int colour)
     this->name = name;
     this->colour = colour;
     energy = 0;
+    played = false;
 }