I'm looking for some tips on animating the player. There's 16 different frames, and 3 in the running animations (3 seperate for left and right, well, more like 2 since the left/right standing frame is used in them).
Anway, I've got a really long function that checks pretty much every key combination to get the frame to use (X is my jump key). I'm sure there's gotta be a better way though...right?
Also, here's my current hero.bmp so you can see what each frame is...it's 0-7 on top and then 8-15 on the bottom. 
| 1 | int getHeroFrame() |
| 2 | { |
| 3 | // check to make sure in the air before doing aerial frames |
| 4 | if (!key[KEY_RIGHT] && (key[KEY_LEFT] || hero.direction < 8) && getpixel(buffer[2], hero.x+cameraX+hero.frame[hero.direction]->w-6, hero.y+cameraY+hero.frame[hero.direction]->h+1) == bitmap_mask_color(buffer[2]) && getpixel(buffer[2], hero.x+cameraX+6, hero.y+cameraY+hero.frame[hero.direction]->h+1) == bitmap_mask_color(buffer[2]) && getpixel(buffer[2], hero.x+cameraX+hero.frame[hero.direction]->w/2, hero.y+cameraY+hero.frame[hero.direction]->h+1) == bitmap_mask_color(buffer[2])) |
| 5 | if (key[KEY_UP]) |
| 6 | return 4; // right-up, spread legs |
| 7 | else if (key[KEY_DOWN]) |
| 8 | return 6; // right-down (air) |
| 9 | else if (key[KEY_X] && hero.ground && hero.altitude < JUMPTIME-10) |
| 10 | return 2; // right, legs together |
| 11 | else |
| 12 | return 1; // right, spread legs |
| 13 | // one more air, just the other facing |
| 14 | else if ((key[KEY_RIGHT] || hero.direction > 7) && getpixel(buffer[2], hero.x+cameraX+hero.frame[hero.direction]->w-6, hero.y+cameraY+hero.frame[hero.direction]->h+1) == bitmap_mask_color(buffer[2]) && getpixel(buffer[2], hero.x+cameraX+hero.frame[hero.direction]->w/2, hero.y+cameraY+hero.frame[hero.direction]->h+1) == bitmap_mask_color(buffer[2]) && getpixel(buffer[2], hero.x+cameraX+6, hero.y+cameraY+hero.frame[hero.direction]->h+1) == bitmap_mask_color(buffer[2])) |
| 15 | if (key[KEY_UP]) |
| 16 | return 12; // left-up, spread legs |
| 17 | else if (key[KEY_DOWN]) |
| 18 | return 14; // left-down (air) |
| 19 | else if (key[KEY_X] && hero.ground && hero.altitude < JUMPTIME-10) |
| 20 | return 10; // left, legs together |
| 21 | else |
| 22 | return 9; // left, spread legs |
| 23 | hero.step++; // to cycle running frames |
| 24 | if (hero.step >= 25) |
| 25 | { |
| 26 | if (hero.step >= 50) |
| 27 | { |
| 28 | if (hero.step >= 75) |
| 29 | hero.step = 0; |
| 30 | if (key[KEY_UP] && key[KEY_RIGHT]) |
| 31 | return 11; // right-up |
| 32 | else if (key[KEY_UP] && key[KEY_LEFT]) |
| 33 | return 3; // left-up |
| 34 | if (key[KEY_RIGHT]) |
| 35 | return 8; // right |
| 36 | else if (key[KEY_LEFT]) |
| 37 | return 0; // left |
| 38 | } |
| 39 | if (key[KEY_UP] && key[KEY_RIGHT]) |
| 40 | return 12; // right-up, legs spread |
| 41 | else if (key[KEY_UP] && key[KEY_LEFT]) |
| 42 | return 4; // left-up, legs spread |
| 43 | if (key[KEY_RIGHT]) |
| 44 | return 9; // right, legs spread |
| 45 | else if (key[KEY_LEFT]) |
| 46 | return 1; // left, legs spread |
| 47 | } |
| 48 | if (key[KEY_UP] && key[KEY_RIGHT]) |
| 49 | return 13; // right-up, legs together |
| 50 | else if (key[KEY_UP] && key[KEY_LEFT]) |
| 51 | return 5; // left-up, legs together |
| 52 | if (key[KEY_RIGHT]) |
| 53 | return 10; // right, legs together |
| 54 | else if (key[KEY_LEFT]) |
| 55 | return 2; // left, legs together |
| 56 | if (hero.direction < 7 || (hero.direction < 8 && key[KEY_UP])) |
| 57 | if (key[KEY_UP]) |
| 58 | return 3; // left-up |
| 59 | else if (key[KEY_DOWN]) |
| 60 | return 7; // lefts-backwards |
| 61 | else |
| 62 | return 0; // left |
| 63 | else if ((hero.direction != 15 && hero.direction != 7) || key[KEY_UP]) |
| 64 | if (key[KEY_UP]) |
| 65 | return 11; // right-up |
| 66 | else if (key[KEY_DOWN]) |
| 67 | return 15; // right-backwards |
| 68 | else |
| 69 | return 8; // right |
| 70 | return hero.direction; // keep current direction |
| 71 | } |
]]>