1// Sword Play 2 3// Known issues: 4 5// two players are stuck together 6// player 2, as far as I can tell, is not starting at the location I specified (x-coordinate 440) 7// game crashes for reasons unknown 8// occasionally game will skip the last frame of any animation, even when only one player is there and works properly...is that always going to happen or can that be fixed? 9// many more sprite sheets still needed 10 11#include <allegro.h> 12 13#define BLACK makecol(0, 0, 0) 14#define GREEN makecol(0, 255, 0) 15#define WHITE makecol(255, 255, 255) 16 17volatile int frame1 = 0, frame2 = 0, p1 = 40, p2 = 440, player, stamina1 = 100, stamina2 = 100, ticks = 0; 18const int frameRate = 8, staticy = 200; 19bool first1 = true, otherFirst1 = false, first2 = true, otherFirst2 = false; // restarts the frame count every time a button is pressed 20 21// obtains sprites from a sprite sheet 22BITMAP *grabframe(BITMAP *source, int width, int height, int startx, int starty, int columns, int frame) 23{ 24 BITMAP *temp = create_bitmap(width, height); 25 26 int x = startx + (frame % columns) * width; 27 int y = starty + (frame / columns) * height; 28 29 blit(source, temp, x, y, 0, 0, width, height); 30 31 return temp; 32} 33BITMAP *buffer; // used to smooth out the animation 34BITMAP *buffer2; // used to smooth out animation even more 35BITMAP *pic; // temporary variable for putting sprites into an array 36BITMAP *SwordPlayTitle; // title screen picture 37 38// sprite arrays end in s (for sprite) to differentiate from functions 39BITMAP *fightStances[4]; 40BITMAP *runForwards[9]; 41BITMAP *runBackwards[5]; 42 43/*BITMAP *attackHeads[10]; 44BITMAP *attackHands[10]; 45BITMAP *attackFoots[10]; 46BITMAP *defendHeads[1]; 47BITMAP *defendHands[1]; 48BITMAP *defendFoots[1]; 49 50BITMAP *powerStruggles[1]; 51BITMAP *pushs[4];*/ 52 53void time(void); // used to count hundredths of a second 54void frame1Function(int maxframes); // controls animation of current action for player 1 55void frame2Function(int maxframes); // controls animation of current action for player 2 56 57void runForward(int player); // 9 frames 58void runBackward(int player); // 5 frames 59 60/*void attackHead(int player); 61void attackHand(int player); 62void attackFoot(int player); 63void defendHead(int player); 64void defendHand(int player); 65void defendFoot(int player); 66 67void push(int player); // 5 frames: one player stumbles backward, other stays in fightStance 68void powerStruggle(void); // both players go through same two frames, then loser is pushed*/ 69 70void stamina(void); // displays players' stamina bars 71void increaseStamina(void); // slightly regenerates stamina every second 72/*void decreaseStamina(void); // decreases player's stamina when an attack is blocked*/ 73 74int main(void) 75{ 76 allegro_init(); // uses Allegro 77 install_timer(); // initializes timing functionality 78 install_keyboard(); // allows use of keyboard 79 set_color_depth(32); // sets color depth for pallette of sprites 80 set_gfx_mode(GFX_AUTODETECT_WINDOWED, 640, 480, 0, 0); // makes the screen a 640x480 window 81 SwordPlayTitle = load_bitmap("SwordPlayTitle.bmp", NULL); // loads title screen image 82 83 blit(SwordPlayTitle, screen, 0, 0, 0, 0, SwordPlayTitle->w, SwordPlayTitle->h); // puts the title screen picture on the screen 84 textprintf_centre_ex(screen, font, SCREEN_W / 2, 460, makecol(255, 255, 255), -1, "Press Any Key to Continue..."); 85 destroy_bitmap(SwordPlayTitle); // frees up memory by destroying a now unneeded title screen 86 readkey(); // waits for input to proceed 87 88 rest(50); // brief pause between input and loading the actual game 89 90 // loads frames for the fighting stance animation 91 pic = load_bitmap("FightStanceSpriteSheet.bmp", NULL); 92 for(int x = 0; x <= 3; x++) 93 { 94 fightStances[x] = grabframe(pic, 240, 240, 0, 0, 4, x); 95 } 96 97 // loads frames for the running forward animation 98 pic = load_bitmap("RunForwardSheet.bmp", NULL); 99 for(int x = 0; x <= 8; x++) 100 { 101 runForwards[x] = grabframe(pic, 240, 240, 0, 0, 4, x); 102 } 103 104 // loads frames for the running backward animation 105 pic = load_bitmap("RunBackwardSheet.bmp", NULL); 106 for(int x = 0; x <= 4; x++) 107 { 108 runBackwards[x] = grabframe(pic, 240, 240, 0, 0, 4, x); 109 } 110 111 destroy_bitmap(pic); // frees up memory by destroying a now unneeded temporary variable 112 buffer = create_bitmap(SCREEN_W, SCREEN_H); // makes the buffer 113 buffer2 = create_bitmap(SCREEN_W, SCREEN_H); // makes the buffer's buffer 114 install_int_ex(time, BPS_TO_TIMER(100)); // calls the timer function 100 times every second 115 install_int_ex(increaseStamina, BPS_TO_TIMER(1)); // increases the stamina bars for both players by 1 every second 116 117 // main game loop 118 while(!key[KEY_ESC]) 119 { 120 clear_to_color(buffer, WHITE); 121 /*// attack commands for player 1 122 if(key[KEY_W] && key[KEY_SPACE]) 123 attackHead(1); 124 else if(key[KEY_SPACE]) 125 attackHand(1); 126 else if(key[KEY_S] && key[KEY_SPACE]) 127 attackFoot(1); 128 129 // defend commands for player 1 130 else if(key[KEY_W] && key[KEY_LSHIFT]) 131 defendHead(1); 132 else if(key[KEY_LSHIFT]) 133 defendHand(1); 134 else if(key[KEY_S] && key[KEY_LSHIFT]) 135 defendFoot(1);*/ 136 137 // movement commands for player 1 138 if(key[KEY_D]) 139 { 140 if(first1 == true) 141 { 142 frame1 = 0; 143 first1 = false; 144 otherFirst1 = true; 145 } 146 runForward(1); 147 draw_sprite(buffer, runForwards[frame1], p1, staticy); 148 } 149 else if(key[KEY_A]) 150 { 151 if(first1 == true) 152 { 153 frame1 = 0; 154 first1 = false; 155 otherFirst1 = true; 156 } 157 runBackward(1); 158 draw_sprite(buffer, runBackwards[frame1], p1, staticy); 159 } 160 else 161 { 162 first1 = true; 163 if(otherFirst1 == true) 164 { 165 otherFirst1 = false; 166 frame1 = 0; 167 } 168 frame1Function(3); 169 draw_sprite(buffer, fightStances[frame1], p1, staticy); 170 } 171 172 /*// attack commands for player 2 173 if(key[KEY_W] && key[KEY_SPACE]) 174 attackHead(1); 175 else if(key[KEY_SPACE]) 176 attackHand(1); 177 else if(key[KEY_S] && key[KEY_SPACE]) 178 attackFoot(1); 179 180 // defend commands for player 2 181 else if(key[KEY_W] && key[KEY_LSHIFT]) 182 defendHead(1); 183 else if(key[KEY_LSHIFT]) 184 defendHand(1); 185 else if(key[KEY_S] && key[KEY_LSHIFT]) 186 defendFoot(1);*/ 187 188 // movement commands for player 2 189 if(key[KEY_LEFT]) 190 { 191 if(first2 == true) 192 { 193 frame2 = 0; 194 first2 = false; 195 otherFirst2 = true; 196 } 197 runForward(2); 198 draw_sprite_h_flip(buffer, runForwards[frame1], p1, staticy); 199 } 200 else if(key[KEY_RIGHT]) 201 { 202 if(first2 == true) 203 { 204 frame2 = 0; 205 first2 = false; 206 otherFirst2 = true; 207 } 208 runBackward(2); 209 draw_sprite_h_flip(buffer, runBackwards[frame1], p1, staticy); 210 } 211 else 212 { 213 first2 = true; 214 if(otherFirst2 == true) 215 { 216 otherFirst2 = false; 217 frame2 = 0; 218 } 219 frame2Function(3); 220 draw_sprite_h_flip(buffer, fightStances[frame1], p1, staticy); 221 } 222 223 stamina(); // displays the stamina bars on the screen 224 blit(buffer, buffer2, 0, 0, 0, 0, SCREEN_W, SCREEN_H); // puts everything that just happened in the last split-second on the second buffer 225 blit(buffer2, screen, 0, 0, 0, 0, SCREEN_W, SCREEN_H); // puts that buffer on the screen 226 clear_bitmap(buffer); // erases the buffer so that it can be changed again 227 } 228 remove_int(increaseStamina); // frees up the memory used to call this function over and over again 229 230 return 0; // makes this code compatible with non-MS compilers 231}END_OF_MAIN() 232 233void time() 234{ 235 ticks++; 236 237 if(ticks >= 100) 238 ticks = 0; 239} 240 241void frame1Function(int maxframes) 242{ 243 if(frame1 >= maxframes) 244 frame1 = 0; 245 246 float comparisonVariable = 100 / frameRate; 247 248 if(ticks >= comparisonVariable) 249 { 250 ticks = 0; 251 252 if(frame1 >= maxframes) 253 frame1 = 0; 254 else 255 frame1++; 256 } 257} 258 259void frame2Function(int maxframes) 260{ 261 if(frame2 >= maxframes) 262 frame2 = 0; 263 264 float comparisonVariable = 100 / frameRate; 265 266 if(ticks >= comparisonVariable) 267 { 268 ticks = 0; 269 270 if(frame2 >= maxframes) 271 frame2 = 0; 272 else 273 frame2++; 274 } 275} 276 277void runForward(int player) 278{ 279 if(player == 1) 280 { 281 frame1Function(8); 282 283 if(p1 <= (p2 - 240)) 284 p1++; 285 } 286 287 if(player == 2) 288 { 289 frame2Function(8); 290 291 if(p2 >= p1) 292 p2--; 293 } 294} 295 296void runBackward(int player) 297{ 298 if(player == 1) 299 { 300 frame1Function(4); 301 302 if(p1 > 0) 303 p1--; 304 } 305 306 if(player == 2) 307 { 308 frame1Function(4); 309 310 if(p2 < SCREEN_W) 311 p2++; 312 } 313} 314 315void stamina() 316{ 317 textprintf_ex(buffer, font, 5, 15, BLACK, -1, "Player 1"); 318 textprintf_right_ex(buffer, font, SCREEN_W - 5, 15, BLACK, -1, "Player 2"); 319 rectfill(buffer, 5, 5, 5 + stamina1, 10, GREEN); 320 rectfill(buffer, SCREEN_W - 105, 5, SCREEN_W - 105 + stamina2, 10, GREEN); 321} 322 323void increaseStamina() 324{ 325 stamina1++; 326 if(stamina1 > 100) 327 stamina1 = 100; 328 stamina2++; 329 if(stamina2 > 100) 330 stamina2 = 100; 331}