-// $Id: drawing_context.h 2334 2005-04-04 16:26:14Z grumbel $
+// $Id$
//
-// SuperTux - A Jump'n Run
-// Copyright (C) 2004 Matthias Braun <matze@braunis.de
+// SuperTux
+// Copyright (C) 2006 Matthias Braun <matze@braunis.de>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
#ifndef SUPERTUX_DRAWINGCONTEXT_H
#define SUPERTUX_DRAWINGCONTEXT_H
#include <memory>
#include "math/vector.hpp"
+#include "math/rect.hpp"
#include "surface.hpp"
#include "font.hpp"
#include "color.hpp"
LAYER_BACKGROUND1 = -200,
LAYER_BACKGROUNDTILES = -100,
LAYER_TILES = 0,
- LAYER_OBJECTS = 100,
+ LAYER_OBJECTS = 50,
+ LAYER_FLOATINGOBJECTS = 150,
LAYER_FOREGROUNDTILES = 200,
LAYER_FOREGROUND0 = 300,
LAYER_FOREGROUND1 = 400,
- LAYER_GUI = 500
+ LAYER_HUD = 500,
+ LAYER_GUI = 600
+};
+
+class Blend
+{
+public:
+ GLenum sfactor;
+ GLenum dfactor;
+
+ Blend()
+ : sfactor(GL_SRC_ALPHA), dfactor(GL_ONE_MINUS_SRC_ALPHA)
+ {}
+
+ Blend(GLenum s, GLenum d)
+ : sfactor(s), dfactor(d)
+ {}
};
/**
public:
DrawingContext();
~DrawingContext();
-
+
+ /// Adds a drawing request for a surface into the request list.
+ void draw_surface(const Surface* surface, const Vector& position,
+ int layer);
/// Adds a drawing request for a surface into the request list.
void draw_surface(const Surface* surface, const Vector& position,
+ float angle, const Color& color, const Blend& blend,
int layer);
/// Adds a drawing request for part of a surface.
void draw_surface_part(const Surface* surface, const Vector& source,
/// Draws a text.
void draw_text(const Font* font, const std::string& text,
const Vector& position, FontAlignment alignment, int layer);
-
+
/// Draws text on screen center (feed Vector.x with a 0).
/// This is the same as draw_text() with a SCREEN_WIDTH/2 position and
/// alignment set to LEFT_ALLIGN
/// Fills a rectangle.
void draw_filled_rect(const Vector& topleft, const Vector& size,
const Color& color, int layer);
-
+ void draw_filled_rect(const Rect& rect, const Color& color, int layer);
+
/// Processes all pending drawing requests and flushes the list.
void do_drawing();
-
+
const Vector& get_translation() const
{ return transform.translation; }
-
+
void set_translation(const Vector& newtranslation)
{ transform.translation = newtranslation; }
-
+
void push_transform();
void pop_transform();
-
+
/// Apply that effect in the next draws (effects are listed on surface.h).
void set_drawing_effect(DrawingEffect effect);
/// return currently applied drawing effect
/// return currently set alpha
float get_alpha() const;
+ /// on next update, set color to lightmap's color at position
+ void get_light(const Vector& position, Color* color );
+
enum Target {
NORMAL, LIGHTMAP
};
void push_target();
void pop_target();
void set_target(Target target);
-
+
+ void set_ambient_color( Color new_color );
+
private:
class Transform
{
Vector translation;
DrawingEffect drawing_effect;
float alpha;
-
+
Transform()
: drawing_effect(NO_EFFECT), alpha(1.0f)
{ }
-
+
Vector apply(const Vector& v) const
{
return v - translation;
}
};
-
+
/// the transform stack
std::vector<Transform> transformstack;
/// the currently active transform
Transform transform;
- class Blend
- {
- public:
- GLenum sfactor;
- GLenum dfactor;
-
- Blend()
- : sfactor(GL_SRC_ALPHA), dfactor(GL_ONE_MINUS_SRC_ALPHA)
- {}
- };
std::vector<Blend> blend_stack;
Blend blend_mode;
-
+
enum RequestType
{
- SURFACE, SURFACE_PART, TEXT, GRADIENT, FILLRECT
+ SURFACE, SURFACE_PART, TEXT, GRADIENT, FILLRECT, LIGHTMAPREQUEST, GETLIGHT
};
-
+
struct SurfacePartRequest
{
const Surface* surface;
Vector source, size;
};
-
+
struct TextRequest
{
const Font* font;
std::string text;
FontAlignment alignment;
};
-
+
struct GradientRequest
{
Color top, bottom;
Vector size;
};
-
+
struct FillRectRequest
{
Color color;
Vector size;
};
-
+
struct DrawingRequest
{
RequestType type;
- Vector pos;
-
+ Vector pos;
+
int layer;
DrawingEffect drawing_effect;
float alpha;
Blend blend;
-
+ float angle;
+ Color color;
+
void* request_data;
-
+
+ DrawingRequest()
+ : angle(0.0f),
+ color(1.0f, 1.0f, 1.0f, 1.0f)
+ {}
+
bool operator<(const DrawingRequest& other) const
{
return layer < other.layer;
}
};
+ struct GetLightRequest
+ {
+ Color* color_ptr;
+ };
+
typedef std::vector<DrawingRequest> DrawingRequests;
-
+
void handle_drawing_requests(DrawingRequests& requests);
void draw_surface_part(DrawingRequest& request);
void draw_text(DrawingRequest& request);
void draw_text_center(DrawingRequest& request);
void draw_gradient(DrawingRequest& request);
void draw_filled_rect(DrawingRequest& request);
-
+ void draw_lightmap(DrawingRequest& request);
+ void get_light(DrawingRequest& request);
+
DrawingRequests drawing_requests;
DrawingRequests lightmap_requests;
DrawingRequests* requests;
+ Color ambient_color;
SDL_Surface* screen;
Target target;
projects / supertux.git / blobdiff