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- /*
- 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, u8 tiledef_version) const
- {
- 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, u8 tiledef_version)
- {
- type = (TileAnimationType) readU8(is);
- 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);
- }
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