-/*
- 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 <stdio.h>
#include <stdlib.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);
+ glColor3ub(bot_clr.red, bot_clr.green, bot_clr.blue);
glVertex2f(640, 480);
glVertex2f(0, 480);
glEnd();
{
#endif
- SDL_Rect r;
- r.x = 0;
- r.w = 640;
- r.h = 2;
-
for(float y = 0; y < 480; y += 2)
- {
- r.y = (int)y;
-
- SDL_FillRect(screen, &r, SDL_MapRGB(screen->format, (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)));
- }
+ fillrect(0, (int)y, 640, 2,
+ (int)(((float)(top_clr.red-bot_clr.red)/(0-480)) * y + top_clr.red),
+ (int)(((float)(top_clr.green-bot_clr.green)/(0-480)) * y + top_clr.green),
+ (int)(((float)(top_clr.blue-bot_clr.blue)/(0-480)) * y + top_clr.blue), 255);
/* calculates the color for each line, based in the generic equation for functions: y = mx + b */
#ifndef NOOPENGL