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| 1 | void Surface::blit(Surface *src, int x, int y, float rotation, float sx, float sy, int ox, int oy, bool smooth) {
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| 2 | ||
| 3 | SDL_Surface *temp; | |
| 4 | temp = rotozoomSurfaceXY( | |
| 5 | src->getSDL_Surface(), | |
| 6 | rotation, | |
| 7 | sx, sy, | |
| 8 | smooth ? SMOOTHING_ON : SMOOTHING_OFF | |
| 9 | ); | |
| 10 | assert(temp); | |
| 11 | ||
| 12 | float w_no_rot = src->getWidth() * sx; | |
| 13 | float h_no_rot = src->getHeight() * sy; | |
| 14 | ||
| 15 | float cos_rot = cos(math::DEG_RAD_R * rotation); | |
| 16 | float sin_rot = sin(math::DEG_RAD_R * rotation); | |
| 17 | ||
| 18 | Vector2D v1(w_no_rot, -h_no_rot); | |
| 19 | Vector2D v2(w_no_rot, 0); | |
| 20 | ||
| 21 | v1.rotate(math::DEG_RAD_R * rotation); | |
| 22 | v2.rotate(math::DEG_RAD_R * rotation); | |
| 23 | ||
| 24 | int fx, fy; | |
| 25 | ||
| 26 | fx = x - ox * sx; | |
| 27 | fy = y - oy * sy; | |
| 28 | //fx = x; | |
| 29 | //fy = y; | |
| 30 | ||
| 31 | rotation = fmod(rotation, 360.0f); | |
| 32 | if (rotation >= 0 && rotation < 90) {
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| 33 | fy -= v2.getY(); | |
| 34 | } | |
| 35 | else | |
| 36 | if (rotation >= 90 && rotation < 180) {
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| 37 | fx += v2.getX(); | |
| 38 | fy -= v1.getY(); | |
| 39 | } | |
| 40 | else | |
| 41 | if (rotation >= 180 && rotation < 270) {
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| 42 | fx += v1.getX(); | |
| 43 | fy += h_no_rot * cos_rot; | |
| 44 | } | |
| 45 | else {
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| 46 | fx += h_no_rot * sin_rot; | |
| 47 | } | |
| 48 | ||
| 49 | SDL_Rect dest_rect = {Sint16(fx), Sint16(fy), Uint16(temp->w), Uint16(temp->h)};
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| 50 | ||
| 51 | SDL_BlitSurface(temp, 0, getSDL_Surface(), &dest_rect); | |
| 52 | ||
| 53 | SDL_FreeSurface(temp); | |
| 54 | } |
