72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
/***************************************************************************
|
|
alienBlaster
|
|
Copyright (C) 2004
|
|
Paul Grathwohl, Arne Hormann, Daniel Kuehn, Soenke Schwardt
|
|
|
|
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, 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.
|
|
***************************************************************************/
|
|
using namespace std;
|
|
|
|
#include "smokePuff.h"
|
|
#include "surfaceDB.h"
|
|
#include "global.h"
|
|
|
|
SmokePuff::SmokePuff( Vector2D position, Vector2D velocity, SmokePuffTypes whichType ) {
|
|
|
|
smokePuffType = whichType;
|
|
pos = position;
|
|
vel = velocity;
|
|
|
|
sprite = surfaceDB.loadSurface( FN_SMOKE_PUFF[ smokePuffType ],
|
|
SMOKE_PUFF_ALPHA_BLENDING );
|
|
|
|
expired = false;
|
|
nrAnimStages = sprite->w / sprite->h;
|
|
timePerStage = LIFETIME_SMOKE_PUFF[ smokePuffType ] / nrAnimStages;
|
|
actAnimStage = 0;
|
|
timeLived = 0;
|
|
timeNextAnimStage = timePerStage;
|
|
}
|
|
|
|
SmokePuff::~SmokePuff() {}
|
|
|
|
void SmokePuff::update( int dT ) {
|
|
pos += vel * dT / 1000.0;
|
|
timeLived += dT;
|
|
if ( timeLived > timeNextAnimStage ) {
|
|
timeNextAnimStage += timePerStage;
|
|
actAnimStage++;
|
|
if (actAnimStage == nrAnimStages) expired = true;
|
|
}
|
|
}
|
|
|
|
void SmokePuff::drawSmokePuff( SdlCompat_AcceleratedSurface *screen ) {
|
|
if (expired) return;
|
|
|
|
SDL_Rect dest;
|
|
dest.x = lroundf(pos.getX()) - sprite->w / (2*nrAnimStages);
|
|
dest.y = lroundf(pos.getY()) - sprite->h / 2;
|
|
dest.w = sprite->w / nrAnimStages;
|
|
dest.h = sprite->h;
|
|
|
|
SDL_Rect src;
|
|
src.x = actAnimStage * sprite->w / nrAnimStages;
|
|
src.y = 0;
|
|
src.w = sprite->w / nrAnimStages;
|
|
src.h = sprite->h;
|
|
|
|
SDL_BlitSurface( sprite, &src, screen, &dest );
|
|
}
|