tileanimation.h

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// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2016 sfan5 <sfan5@live.de>
 
#pragma once
 
#include <iostream>
#include "irrlichttypes_bloated.h"
 
enum TileAnimationType : u8
{
        TAT_NONE = 0,
        TAT_VERTICAL_FRAMES = 1,
        TAT_SHEET_2D = 2,
};
 
struct TileAnimationParams
{
        enum TileAnimationType type = TileAnimationType::TAT_NONE;
        union
        {
                // struct {
                // } none;
                struct
                {
                        int aspect_w; // width for aspect ratio
                        int aspect_h; // height for aspect ratio
                        float length; // seconds
                } vertical_frames;
                struct
                {
                        int frames_w;       // number of frames left-to-right
                        int frames_h;       // number of frames top-to-bottom
                        float frame_length; // seconds
                } sheet_2d;
        };
 
        void serialize(std::ostream &os, u16 protocol_ver) const;
        void deSerialize(std::istream &is, u16 protocol_ver);
        void determineParams(v2u32 texture_size, int *frame_count, int *frame_length_ms,
                        v2u32 *frame_size) const;
        void getTextureModifer(std::ostream &os, v2u32 texture_size, int frame) const;
        v2f getTextureCoords(v2u32 texture_size, int frame) const;
};