| /* |
| # |
| # File : tron.cpp |
| # ( C++ source file ) |
| # |
| # Description : A clone of the famous (and very simple) Tron game. |
| # This file is a part of the CImg Library project. |
| # ( http://cimg.eu ) |
| # |
| # Copyright : David Tschumperle |
| # ( http://tschumperle.users.greyc.fr/ ) |
| # |
| # License : CeCILL v2.0 |
| # ( http://www.cecill.info/licences/Licence_CeCILL_V2-en.html ) |
| # |
| # This software is governed by the CeCILL license under French law and |
| # abiding by the rules of distribution of free software. You can use, |
| # modify and/ or redistribute the software under the terms of the CeCILL |
| # license as circulated by CEA, CNRS and INRIA at the following URL |
| # "http://www.cecill.info". |
| # |
| # As a counterpart to the access to the source code and rights to copy, |
| # modify and redistribute granted by the license, users are provided only |
| # with a limited warranty and the software's author, the holder of the |
| # economic rights, and the successive licensors have only limited |
| # liability. |
| # |
| # In this respect, the user's attention is drawn to the risks associated |
| # with loading, using, modifying and/or developing or reproducing the |
| # software by the user in light of its specific status of free software, |
| # that may mean that it is complicated to manipulate, and that also |
| # therefore means that it is reserved for developers and experienced |
| # professionals having in-depth computer knowledge. Users are therefore |
| # encouraged to load and test the software's suitability as regards their |
| # requirements in conditions enabling the security of their systems and/or |
| # data to be ensured and, more generally, to use and operate it in the |
| # same conditions as regards security. |
| # |
| # The fact that you are presently reading this means that you have had |
| # knowledge of the CeCILL license and that you accept its terms. |
| # |
| */ |
| |
| #include "CImg.h" |
| using namespace cimg_library; |
| |
| // Main procedure |
| //---------------- |
| int main(int argc, char **argv) { |
| |
| // Print usage, help and retrieve command line options |
| //----------------------------------------------------- |
| cimg_usage("A very simple Tron game, using the CImg Library"); |
| cimg_help("--- Quick help ----------------------------\n" |
| " Player 1 (blue) :\n" |
| " Use keys 'Z' (up), 'S' (down), 'Q' (left)\n" |
| " and 'D' (right) to control your player.\n" |
| " Right 'CONTROL' key enables turbospeed\n" |
| " Player 2 (red) : \n" |
| " Use arrow keys to control your player.\n" |
| " 'TAB' key enables turbospeed.\n" |
| "-------------------------------------------"); |
| |
| const char *geom = cimg_option("-g","300x300","Size of the game board"); |
| const int delay = cimg_option("-s",10,"Game speed (lower value means faster)"); |
| const bool twoplayers = !cimg_option("-1",false,"One player only"); |
| const int zoom = cimg_option("-z",1,"Zoom factor"); |
| const bool full = cimg_option("-f",false,"Fullscreen mode"); |
| unsigned int W = 400, H = 400; |
| std::sscanf(geom,"%u%*c%u",&W,&H); |
| |
| // Define game colors and variables |
| //---------------------------------- |
| const unsigned char blue[] = { 128,200,255}, red[] = { 255,0,0 }, white[] = { 255,255,255 }; |
| int score1 = 0, score2 = 0, round_over = 0, ix1 = -1, iy1 = -1, x1 = 0, y1 = 0, u1 = 0, v1 = 0, |
| ix2 = -1, iy2 = -1, x2 = 0, y2 = 0, u2 = 0, v2 = 0; |
| bool start_round = true, turbo1 = false, turbo2 = false; |
| |
| // Create background image |
| //-------------------------- |
| CImg<unsigned char> background, img; |
| background.assign(64,64,1,3,0).noise(60).draw_plasma().resize(W,H).blur(2).normalize(0,128). |
| draw_rectangle(0,0,W-1,H-1,white,1.0f,~0U); |
| |
| // Open display window |
| //--------------------- |
| CImgDisplay disp(background,"* CImg-Tron *"); |
| if (zoom>1) disp.resize(-100*zoom,-100*zoom); |
| if (full) disp.toggle_fullscreen().display(background); |
| |
| // Start main game loop |
| //---------------------- |
| while (!disp.is_closed() && !disp.is_keyESC()) { |
| |
| // Init new game round if necessary |
| //---------------------------------- |
| if (start_round) { |
| |
| // Init game variables |
| round_over = 0; |
| ix1 = -1; iy1 = -1; x1 = 10; y1 = 10; u1 = 1; v1 = 0; turbo1 = false; |
| ix2 = -1; iy2 = -1; x2 = W - 11; y2 = H - 11; u2 = -1; v2 = 0; turbo2 = false; |
| img = background; |
| start_round = false; |
| |
| // Display a simple pre-round page |
| CImg<unsigned char> logo, pressakey; |
| logo.draw_text(0,0," CImg-Tron ",white,0,1,33).resize(-100,-100,1,3); |
| CImg<unsigned char> tmp = (+background).draw_image((W - logo.width())/2,(H - logo.height())/2 - 20, |
| logo,logo.get_channel(0).dilate(6).normalize(0,1)). |
| draw_text(W/2 - 60,H/2 + 10,"Blue ( %u )",blue,0,1,13,score1). |
| draw_text(W/2 + 10,H/2 + 10,"Red ( %u )",red,0,1,13,score2); |
| pressakey.draw_text(0,0,"* Press a key to start round *",white); |
| for (float i = 0; i<1; i+=0.05f) ((+tmp)*=i).display(disp.wait(20)); |
| disp.flush(); |
| for (unsigned long t = 0; !disp.key() && !disp.is_closed(); ++t) { |
| if (!(t%10)) { if (t%20) disp.display(tmp); |
| else disp.display((+tmp).draw_image(W/2 - 70,H/2 + 50,pressakey,pressakey,1,255)); } |
| if (disp.wait(20).is_resized()) disp.resize(disp); |
| } |
| if (disp.is_keyESC()) disp.flush(); |
| } |
| |
| // Test collision between players and borders |
| if (x1<0 || x1>=img.width() || y1<0 || y1>=img.height() || |
| img(x1,y1,0)!=background(x1,y1,0) || |
| img(x1,y1,1)!=background(x1,y1,1) || |
| img(x1,y1,2)!=background(x1,y1,2) || |
| ((ix1>=0 || iy1>=0) && (img(ix1,iy1,0)!=background(ix1,iy1,0) || // Collision test for turbo mode |
| img(ix1,iy1,1)!=background(ix1,iy1,1) || |
| img(ix1,iy1,2)!=background(ix1,iy1,2)))) { round_over=1; score2++; } |
| if (twoplayers) { |
| if (x2<0 || x2>=img.width() || y2<0 || y2>=img.height() || |
| img(x2,y2,0)!=background(x2,y2,0) || |
| img(x2,y2,1)!=background(x2,y2,1) || |
| img(x2,y2,2)!=background(x2,y2,2) || |
| ((ix2>=0 || iy2>=0) && (img(ix2,iy2,0)!=background(ix2,iy2,0) || // Collision test for turbo mode |
| img(ix2,iy2,1)!=background(ix2,iy2,1) || |
| img(ix2,iy2,2)!=background(ix2,iy2,2)))) { round_over=2; score1++; } |
| } |
| |
| // Draw new players positions |
| img.draw_point(x1,y1,blue); |
| if (ix1>=0 && iy1>=0) img.draw_point(ix1,iy1,blue); |
| if (twoplayers) { |
| img.draw_point(x2,y2,red); |
| if (ix2>=0 && iy2>=0) img.draw_point(ix2,iy2,red); |
| } |
| if (disp.is_resized()) disp.resize(disp); |
| img.display(disp); |
| |
| // Update players positions |
| x1+=u1; y1+=v1; |
| if (turbo1) { ix1 = x1; iy1 = y1; x1+=u1; y1+=v1; } else { ix1 = iy1 = -1; } |
| if (twoplayers) { |
| x2+=u2; y2+=v2; |
| if (turbo2) { ix2 = x2; iy2 = y2; x2+=u2; y2+=v2; } else { ix2 = iy2 = -1; } |
| } |
| |
| // Test keyboard events |
| int nu1 = u1, nv1 = v1, nu2 = u2, nv2 = v2; |
| if (disp.is_keyARROWLEFT()) { nu1 = -1; nv1 = 0; } |
| if (disp.is_keyARROWRIGHT()) { nu1 = 1; nv1 = 0; } |
| if (disp.is_keyARROWUP()) { nu1 = 0; nv1 = -1; } |
| if (disp.is_keyARROWDOWN()) { nu1 = 0; nv1 = 1; } |
| turbo1 = disp.is_keyCTRLRIGHT(); |
| if (twoplayers) { |
| if (disp.is_keyQ()) { nu2 = -1; nv2 = 0; } |
| if (disp.is_keyD()) { nu2 = 1; nv2 = 0; } |
| if (disp.is_keyZ()) { nu2 = 0; nv2 = -1; } |
| if (disp.is_keyS()) { nu2 = 0; nv2 = 1; } |
| turbo2 = disp.is_keyTAB(); |
| } |
| if (nu1!=-u1 && nv1!=-v1) { u1 = nu1; v1 = nv1; } |
| if (nu2!=-u2 && nv2!=-v2) { u2 = nu2; v2 = nv2; } |
| |
| // Check if round is over. |
| if (round_over) { |
| const int xc = round_over==1?x1:x2, yc = round_over==1?y1:y2; |
| for (int r=0; r<50; r+=3) img.draw_circle(xc,yc,r,round_over==1?blue:red,r/300.0f).display(disp.wait(20)); |
| for (int rr=0; rr<50; rr+=3) |
| ((+img)*=(50 - rr)/50.0f).draw_circle(xc,yc,(50 + rr),round_over==1?blue:red,1/6.0f).display(disp.wait(20)); |
| start_round = true; |
| } |
| |
| // Wait a small amount of time |
| disp.wait(delay); |
| } |
| return 0; |
| } |