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Diffstat (limited to 'src/tileanimation.cpp')
| -rw-r--r-- | src/tileanimation.cpp | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/tileanimation.cpp b/src/tileanimation.cpp new file mode 100644 index 000000000..67d27d396 --- /dev/null +++ b/src/tileanimation.cpp @@ -0,0 +1,131 @@ +/* +Minetest +Copyright (C) 2016 sfan5 <sfan5@live.de> + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ +#include "tileanimation.h" +#include "util/serialize.h" + +void TileAnimationParams::serialize(std::ostream &os, u16 protocol_version) const +{ + if (protocol_version < 29) { + if (type == TAT_VERTICAL_FRAMES) { + writeU8(os, type); + writeU16(os, vertical_frames.aspect_w); + writeU16(os, vertical_frames.aspect_h); + writeF1000(os, vertical_frames.length); + } else { + writeU8(os, TAT_NONE); + writeU16(os, 1); + writeU16(os, 1); + writeF1000(os, 1.0); + } + return; + } + + writeU8(os, type); + if (type == TAT_VERTICAL_FRAMES) { + writeU16(os, vertical_frames.aspect_w); + writeU16(os, vertical_frames.aspect_h); + writeF1000(os, vertical_frames.length); + } else if (type == TAT_SHEET_2D) { + writeU8(os, sheet_2d.frames_w); + writeU8(os, sheet_2d.frames_h); + writeF1000(os, sheet_2d.frame_length); + } +} + +void TileAnimationParams::deSerialize(std::istream &is, u16 protocol_version) +{ + type = (TileAnimationType) readU8(is); + if (protocol_version < 29) { + vertical_frames.aspect_w = readU16(is); + vertical_frames.aspect_h = readU16(is); + vertical_frames.length = readF1000(is); + return; + } + + if (type == TAT_VERTICAL_FRAMES) { + vertical_frames.aspect_w = readU16(is); + vertical_frames.aspect_h = readU16(is); + vertical_frames.length = readF1000(is); + } else if (type == TAT_SHEET_2D) { + sheet_2d.frames_w = readU8(is); + sheet_2d.frames_h = readU8(is); + sheet_2d.frame_length = readF1000(is); + } +} + +void TileAnimationParams::determineParams(v2u32 texture_size, int *frame_count, + int *frame_length_ms, v2u32 *frame_size) const +{ + if (type == TAT_VERTICAL_FRAMES) { + int frame_height = (float)texture_size.X / + (float)vertical_frames.aspect_w * + (float)vertical_frames.aspect_h; + int _frame_count = texture_size.Y / frame_height; + if (frame_count) + *frame_count = _frame_count; + if (frame_length_ms) + *frame_length_ms = 1000.0 * vertical_frames.length / _frame_count; + if (frame_size) + *frame_size = v2u32(texture_size.X, frame_height); + } else if (type == TAT_SHEET_2D) { + if (frame_count) + *frame_count = sheet_2d.frames_w * sheet_2d.frames_h; + if (frame_length_ms) + *frame_length_ms = 1000 * sheet_2d.frame_length; + if (frame_size) + *frame_size = v2u32(texture_size.X / sheet_2d.frames_w, texture_size.Y / sheet_2d.frames_h); + } + // caller should check for TAT_NONE +} + +void TileAnimationParams::getTextureModifer(std::ostream &os, v2u32 texture_size, int frame) const +{ + if (type == TAT_NONE) + return; + if (type == TAT_VERTICAL_FRAMES) { + int frame_count; + determineParams(texture_size, &frame_count, NULL, NULL); + os << "^[verticalframe:" << frame_count << ":" << frame; + } else if (type == TAT_SHEET_2D) { + int q, r; + q = frame / sheet_2d.frames_w; + r = frame % sheet_2d.frames_w; + os << "^[sheet:" << sheet_2d.frames_w << "x" << sheet_2d.frames_h + << ":" << r << "," << q; + } +} + +v2f TileAnimationParams::getTextureCoords(v2u32 texture_size, int frame) const +{ + v2u32 ret(0, 0); + if (type == TAT_VERTICAL_FRAMES) { + int frame_height = (float)texture_size.X / + (float)vertical_frames.aspect_w * + (float)vertical_frames.aspect_h; + ret = v2u32(0, frame_height * frame); + } else if (type == TAT_SHEET_2D) { + v2u32 frame_size; + determineParams(texture_size, NULL, NULL, &frame_size); + int q, r; + q = frame / sheet_2d.frames_w; + r = frame % sheet_2d.frames_w; + ret = v2u32(r * frame_size.X, q * frame_size.Y); + } + return v2f(ret.X / (float) texture_size.X, ret.Y / (float) texture_size.Y); +} |