Split up view.cc.

1 files changed, 145 insertions, 0 deletions

diff --git a/crawl-ref/source/viewgeom.h b/crawl-ref/source/viewgeom.h
new file mode 100644
index 0000000000..6913849679
--- /dev/null
+++ b/crawl-ref/source/viewgeom.h
@@ -0,0 +1,145 @@
+#ifndef VIEWGEOM_H
+#define VIEWGEOM_H
+
+class crawl_view_buffer
+{
+public:
+    crawl_view_buffer();
+    ~crawl_view_buffer();
+    void size(const coord_def &size);
+    operator screen_buffer_t * () { return (buffer); }
+
+    void draw();
+private:
+    screen_buffer_t *buffer;
+};
+
+struct crawl_view_geometry
+{
+public:
+    coord_def termp;               // Left-top pos of terminal.
+    coord_def termsz;              // Size of the terminal.
+    coord_def viewp;               // Left-top pos of viewport.
+    coord_def viewsz;              // Size of the viewport (play area).
+    coord_def hudp;                // Left-top pos of status area.
+    coord_def hudsz;               // Size of the status area.
+    coord_def msgp;                // Left-top pos of the message pane.
+    coord_def msgsz;               // Size of the message pane.
+    coord_def mlistp;              // Left-top pos of the monster list.
+    coord_def mlistsz;             // Size of the monster list.
+
+    crawl_view_buffer vbuf;        // Buffer for drawing the main game map.
+
+    coord_def vgrdc;               // What grid pos is at the centre of the view
+                                   // usually you.pos().
+
+    coord_def viewhalfsz;
+
+    coord_def glos1, glos2;        // LOS limit grid coords (inclusive)
+    coord_def vlos1, vlos2;        // LOS limit viewport coords (inclusive)
+
+    coord_def mousep;              // Where the mouse is.
+
+private:
+    coord_def last_player_pos;
+
+public:
+    crawl_view_geometry();
+    void init_geometry();
+
+    void init_view();
+    void set_player_at(const coord_def &c, bool force_centre = false);
+    // Set new location, but preserve scrolling as if the player didn't move.
+    void shift_player_to(const coord_def &c);
+
+    coord_def view_centre() const
+    {
+        return viewp + viewhalfsz;
+    }
+
+    coord_def glosc() const
+    {
+        return (glos1 + glos2) / 2;
+    }
+
+    bool in_grid_los(const coord_def &c) const
+    {
+        return (c.x >= glos1.x && c.x <= glos2.x
+                && c.y >= glos1.y && c.y <= glos2.y);
+    }
+
+    bool in_view_los(const coord_def &c) const
+    {
+        return (c.x >= vlos1.x && c.x <= vlos2.x
+                && c.y >= vlos1.y && c.y <= vlos2.y);
+    }
+
+    bool in_view_viewport(const coord_def &c) const
+    {
+        return (c.x >= viewp.x && c.y >= viewp.y
+                && c.x < viewp.x + viewsz.x
+                && c.y < viewp.y + viewsz.y);
+    }
+
+    bool in_grid_viewport(const coord_def &c) const
+    {
+        return in_view_viewport(c - vgrdc + view_centre());
+    }
+};
+
+extern crawl_view_geometry crawl_view;
+
+inline int view2gridX(int vx)
+{
+    return (crawl_view.vgrdc.x + vx - crawl_view.view_centre().x);
+}
+
+inline int view2gridY(int vy)
+{
+    return (crawl_view.vgrdc.y + vy - crawl_view.view_centre().y);
+}
+
+inline coord_def view2grid(const coord_def &pos)
+{
+    return pos - crawl_view.view_centre() + crawl_view.vgrdc;
+}
+
+inline int grid2viewX(int gx)
+{
+    return (gx - crawl_view.vgrdc.x + crawl_view.view_centre().x);
+}
+
+inline int grid2viewY(int gy)
+{
+    return (gy - crawl_view.vgrdc.y + crawl_view.view_centre().y);
+}
+
+inline coord_def grid2view(const coord_def &pos)
+{
+    return (pos - crawl_view.vgrdc + crawl_view.view_centre());
+}
+
+inline coord_def view2show(const coord_def &pos)
+{
+    return (pos - crawl_view.vlos1);
+}
+
+inline coord_def show2view(const coord_def &pos)
+{
+    return (pos + crawl_view.vlos1);
+}
+
+inline coord_def grid2show(const coord_def &pos)
+{
+    return (view2show(grid2view(pos)));
+}
+
+inline coord_def show2grid(const coord_def &pos)
+{
+    return (view2grid(show2view(pos)));
+}
+
+#endif
+
+
+