rotate.cpp
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/***************************************************************************
* Copyright (C) 2005 by Jeff Ferr *
* root@sat *
* *
* 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 "jframe.h"
class Main : public jgui::Frame, public jthread::Thread{
private:
jgui::Image *_image,
*_tiles;
double _tx,
_ty,
_tw,
_th,
_tc,
_has_bullet,
_bullet_x,
_bullet_y,
_bullet_angle,
_tile_w,
_tile_h,
_step,
_angle;
public:
Main(int n, int p):
jgui::Frame("Rotate Image", 0, 0, 1, 1)
{
_tx = 200;
_ty = 200;
_tw = 60;
_th = 50;
_tile_w = 64;
_tile_h = 64;
_step = 0;
_angle = 0.0;
_has_bullet = false;
_tc = _tw;
if (_th > _tw) {
_tc = _th;
}
_tc = _tc/2;
_image = jgui::Image::CreateImage(_tw, _th);
_tiles = jgui::Image::CreateImage((10*_tile_w), (4*_tile_h));
_image->GetGraphics()->DrawImage("images/tank2.png", 0, 0, _tw, _th);
_tiles->GetGraphics()->DrawImage("images/tiles.png", 0, 0, (10*_tile_w), (4*_tile_h));
SetSize((int)(10*_tile_w+_insets.left+_insets.right), (8*_tile_h+_insets.top+_insets.bottom));
}
virtual ~Main()
{
delete _image;
delete _tiles;
}
virtual void Paint(jgui::Graphics *g)
{
jgui::Frame::Paint(g);
for (int j=0; j<8; j++) {
for (int i=0; i<10; i++) {
g->DrawImage(_tiles,
(int)(2*_tile_w), (int)(0*_tile_h), (int)(_tile_w), (int)(_tile_h),
(int)(_insets.left+i*_tile_w), (int)(_insets.top+j*_tile_h), (int)_tile_w, (int)_tile_h);
}
}
if (_has_bullet == true) {
g->SetColor(0xf0, 0xf0, 0xf0, 0xff);
g->FillCircle((int)_bullet_x, (int)_bullet_y, 3);
}
g->Rotate(_angle);
g->DrawImage(_image, (int)_tx, (int)_ty);
}
virtual void Run()
{
while (true) {
_tx = _tx + _step*cos(_angle);//+M_PI_2);
_ty = _ty - _step*sin(_angle);//+M_PI_2);
if (_tx < (_insets.left)) {
_tx = (_insets.left);
}
if (_tx > (GetWidth()-_insets.right-_tw)) {
_tx = (GetWidth()-_insets.right-_tw);
}
if (_ty < (_insets.top)) {
_ty = (_insets.top);
}
if (_ty > (GetHeight()-_insets.bottom-_th)) {
_ty = (GetHeight()-_insets.bottom-_th);
}
_bullet_x = _bullet_x + 12*cos(_bullet_angle);
_bullet_y = _bullet_y - 12*sin(_bullet_angle);
if (_bullet_x < (_insets.left) || _bullet_x > (GetWidth()-_insets.right) || _bullet_y < (_insets.top) || _bullet_y > (GetHeight()-_insets.bottom)) {
_has_bullet = false;
}
Repaint();
usleep(40000);
}
}
virtual bool ProcessEvent(jgui::KeyEvent *event)
{
double angle_step = 0.1;
if (event->GetSymbol() == jgui::JKS_SPACE) {
if (_has_bullet == false) {
_bullet_x = _tx+_tc;
_bullet_y = _ty+_tc;
_bullet_angle = _angle;//+M_PI_2;
_has_bullet = true;
}
} else if (event->GetSymbol() == jgui::JKS_CURSOR_UP) {
_step = _step + 2;
if (_step > 8) {
_step = 8;
}
} else if (event->GetSymbol() == jgui::JKS_CURSOR_DOWN) {
_step = _step - 2;
if (_step < -8) {
_step = -8;
}
} else if (event->GetSymbol() == jgui::JKS_CURSOR_RIGHT) {
_step = 0.0;
_angle = (_angle-angle_step);
if (_angle < 0.0) {
_angle = 2*M_PI;
}
} else if (event->GetSymbol() == jgui::JKS_CURSOR_LEFT) {
_step = 0.0;
_angle = fmod(_angle+angle_step, 2*M_PI);
}
return true;
}
};
int main(int argc, char **argv)
{
Main main(50, 100);
main.Start();
main.Show();
return 0;
}