-/*
- screen.c
-
- Super Tux - Screen Functions
-
- by Bill Kendrick
- bill@newbreedsoftware.com
- http://www.newbreedsoftware.com/supertux/
-
- April 11, 2000 - March 15, 2004
-*/
-
+// $Id$
+//
+// SuperTux - A Jump'n Run
+// Copyright (C) 2000 Bill Kendrick <bill@newbreedsoftware.com>
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// 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.
+
+#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* --- DRAWS A VERTICAL GRADIENT --- */
-void drawgradient(int top_r, int top_g, int top_b, int bot_r, int bot_g, int bot_b)
+void drawgradient(Color top_clr, Color bot_clr)
{
#ifndef NOOPENGL
if(use_gl)
{
glBegin(GL_QUADS);
- glColor3ub(top_r, top_g, top_b);
+ glColor3ub(top_clr.red, top_clr.green, top_clr.blue);
glVertex2f(0, 0);
- glVertex2f(640, 0);
- glColor3ub(bot_r, bot_g, bot_b);
- glVertex2f(640, 480);
- glVertex2f(0, 480);
+ glVertex2f(screen->w, 0);
+ glColor3ub(bot_clr.red, bot_clr.green, bot_clr.blue);
+ glVertex2f(screen->w, screen->h);
+ glVertex2f(0, screen->h);
glEnd();
}
else
{
#endif
- for(float y = 0; y < 480; y += 2)
- fillrect(0, (int)y, 640, 2, (int)(((float)(top_r-bot_r)/640) * y + top_r),
- (int)(((float)(top_g-bot_g)/640) * y + top_g),
- (int)(((float)(top_b-bot_b)/640) * y + top_b), 255);
+ for(float y = 0; y < screen->h; y += 2)
+ fillrect(0, (int)y, screen->w, 2,
+ (int)(((float)(top_clr.red-bot_clr.red)/(0-screen->h)) * y + top_clr.red),
+ (int)(((float)(top_clr.green-bot_clr.green)/(0-screen->h)) * y + top_clr.green),
+ (int)(((float)(top_clr.blue-bot_clr.blue)/(0-screen->h)) * y + top_clr.blue),
+ 255);
/* calculates the color for each line, based in the generic equation for functions: y = mx + b */
#ifndef NOOPENGL
#endif
}
+/* --- FADE IN --- */
+
+/** Fades the given surface into a black one. If fade_out is true, it will fade out, else
+it will fade in */
+
+void fade(Surface *surface, int seconds, bool fade_out);
+
+void fade(const std::string& surface, int seconds, bool fade_out)
+{
+Surface* sur = new Surface(datadir + surface, IGNORE_ALPHA);
+fade(sur, seconds, fade_out);
+delete sur;
+}
+
+void fade(Surface *surface, int seconds, bool fade_out)
+{
+float alpha;
+if (fade_out)
+ alpha = 0;
+else
+ alpha = 255;
+
+ int cur_time, old_time;
+ cur_time = SDL_GetTicks();
+
+ while(alpha >= 0 && alpha < 256)
+ {
+ surface->draw(0,0,(int)alpha);
+ flipscreen();
+
+ old_time = cur_time;
+ cur_time = SDL_GetTicks();
+
+ /* Calculate the next alpha value */
+ float calc = (float) ((cur_time - old_time) / seconds);
+ if(fade_out)
+ alpha += 255 * calc;
+ else
+ alpha -= 255 * calc;
+ }
+}
+
/* 'Stolen' from the SDL documentation.
* Set the pixel at (x, y) to the given value
* NOTE: The surface must be locked before calling this!
SDL_Flip(screen);
}
+void fadeout()
+{
+ clearscreen(0, 0, 0);
+ white_text->draw_align("Loading...", screen->w/2, screen->h/2, A_HMIDDLE, A_TOP);
+ flipscreen();
+}
+
void update_rect(SDL_Surface *scr, Sint32 x, Sint32 y, Sint32 w, Sint32 h)
{
if(!use_gl)