Test entity alignment features. Also, start working on the mouse tracking.

src/font.cpp

@@ -40,7 +40,7 @@ private:
     char *name;
 
     SDL_Surface *img;
-    int width, height;
+    int2 size;
     float tx, ty;
     GLuint texture;
 };
@@ -68,10 +68,9 @@ Font::Font(char const *path)
         exit(1);
     }
 
-    data->width = data->img->w / 16;
-    data->height = data->img->h / 16;
-    data->tx = (float)data->width / PotUp(data->img->w);
-    data->ty = (float)data->height / PotUp(data->img->h);
+    data->size = int2(data->img->w, data->img->h) / 16;
+    data->tx = (float)data->size.x / PotUp(data->img->w);
+    data->ty = (float)data->size.y / PotUp(data->img->h);
 
     drawgroup = DRAWGROUP_BEFORE;
 }
@@ -150,14 +149,14 @@ void Font::Print(int3 pos, char const *str)
             glTexCoord2f(tx, ty + data->ty);
             glVertex2f(pos.x, pos.y);
             glTexCoord2f(tx + data->tx, ty + data->ty);
-            glVertex2f(pos.x + data->width, pos.y);
+            glVertex2f(pos.x + data->size.x, pos.y);
             glTexCoord2f(tx + data->tx, ty);
-            glVertex2f(pos.x + data->width, pos.y + data->height);
+            glVertex2f(pos.x + data->size.x, pos.y + data->size.y);
             glTexCoord2f(tx, ty);
-            glVertex2f(pos.x, pos.y + data->height);
+            glVertex2f(pos.x, pos.y + data->size.y);
         }
 
-        pos.x += data->width;
+        pos.x += data->size.x;
     }
     glEnd();
 }
@@ -188,3 +187,8 @@ void Font::PrintBold(int3 pos, char const *str)
     glPopAttrib();
 }
 
+int2 Font::GetSize() const
+{
+    return data->size;
+}
+

src/font.h

@@ -35,6 +35,7 @@ public:
     /* New methods */
     void Print(int3 pos, char const *str);
     void PrintBold(int3 pos, char const *str);
+    int2 GetSize() const;
 
 private:
     FontData *data;

src/input.h

@@ -18,15 +18,24 @@
 
 #include "matrix.h"
 
+class WorldEntity;
+
 class Input
 {
 public:
+    /* These methods are general queries */
     static float2 GetAxis(int axis);
-    static void SetMousePos(int2 coord);
     static int2 GetMousePos();
+    static int3 GetMouseButtons();
+
+    /* Entities can subscribe to events */
+    static void ListenMouse(WorldEntity *e);
+    static void UnlistenMouse(WorldEntity *e);
+
+    /* These methods are called by the underlying input listeners */
+    static void SetMousePos(int2 coord);
     static void SetMouseButton(int index);
     static void UnsetMouseButton(int index);
-    static int3 GetMouseButtons();
 };
 
 #endif // __DH_INPUT_H__

src/text.cpp

@@ -27,7 +27,7 @@ class TextData
     friend class Text;
 
 private:
-    int font;
+    int font, align, length;
     char *text;
     int3 pos;
 };
@@ -41,6 +41,7 @@ Text::Text(char const *text, char const *font)
 {
     data->font = Forge::Register(font);
     data->text = text ? strdup(text) : NULL;
+    data->length = text ? strlen(text) : 0;
     data->pos = int3(0, 0, 0);
 
     drawgroup = DRAWGROUP_HUD;
@@ -51,15 +52,17 @@ void Text::SetText(char const *text)
     if (data->text)
         free(data->text);
     data->text = text ? strdup(text) : NULL;
+    data->length = text ? strlen(text) : 0;
 }
 
 void Text::SetInt(int val)
 {
     if (data->text)
         free(data->text);
-    char buf[128];
-    sprintf(buf, "%i", val);
-    data->text = strdup(buf);
+    char text[128];
+    sprintf(text, "%i", val);
+    data->text = strdup(text);
+    data->length = strlen(text);
 }
 
 void Text::SetPos(int3 pos)
@@ -67,6 +70,11 @@ void Text::SetPos(int3 pos)
     data->pos = pos;
 }
 
+void Text::SetAlign(int align)
+{
+    data->align = align;
+}
+
 void Text::TickDraw(float deltams)
 {
     Entity::TickDraw(deltams);
@@ -74,7 +82,12 @@ void Text::TickDraw(float deltams)
     if (data->text)
     {
         Font *font = Forge::GetFont(data->font);
-        font->Print(data->pos, data->text);
+        int3 delta = 0;
+        if (data->align == ALIGN_RIGHT)
+            delta.x -= data->length * font->GetSize().x;
+        else if (data->align == ALIGN_CENTER)
+            delta.x -= data->length * font->GetSize().x / 2;
+        font->Print(data->pos + delta, data->text);
     }
 }
 

src/text.h

@@ -29,6 +29,14 @@ public:
     void SetText(char const *text);
     void SetInt(int val);
     void SetPos(int3 pos);
+    void SetAlign(int align);
+
+    enum
+    {
+        ALIGN_LEFT,
+        ALIGN_RIGHT,
+        ALIGN_CENTER,
+    };
 
 protected:
     virtual void TickDraw(float deltams);