ExtraCommands/extracommands/RotateBlocksCommandEngine.cs

using System;
using System.Collections.Generic;
using RobocraftX.Multiplayer;
using RobocraftX.Common;
using Svelto.ECS;
using Svelto.ECS.EntityStructs;
using Unity.Entities;
using Svelto.Context;
using Svelto.Tasks;
using RobocraftX;
using RobocraftX.SimulationModeState;
using RobocraftX.UECS;
using Unity.Transforms;
using Unity.Mathematics;
using UnityEngine;

namespace ExtraCommands.Building
{
    //[CustomCommand("RotateBlocks", "Rotate all blocks (including ground) from their original position")]
    [CustomCommand("RotateLastBlock", "Rotate last block from original position")]
    class RotateBlocksCommandEngine : CustomCommandEngine
    {
        public RotateBlocksCommandEngine(UnityContext<FullGameCompositionRoot> ctxHolder, EnginesRoot enginesRoot, World physW, Action reloadGame, MultiplayerInitParameters mpParams) : base(ctxHolder, enginesRoot, physW, reloadGame, mpParams)
        {
        }

        public override void Ready()
        {
            //CustomCommandUtility.Register<float, float, float>("RotateBlocks", RotateBlocksCommand, "Rotate all blocks (including ground) from their original position");
            CustomCommandUtility.Register<float, float, float>("RotateLastBlock", RotateLastBlockCommand, "Rotate last block from original position");
        }

        // Move every block by vector (x,y,z)
        private void RotateBlocksCommand(float x, float y, float z)
        {
            Vector3 eulerAngles = new Vector3(x, y, z);
            ref SimulationModeStateEntityStruct simMode = ref this.entitiesDB.QueryUniqueEntity<SimulationModeStateEntityStruct>(SimulationModeStateExclusiveGroups.GAME_STATE_GROUP);
            if (simMode.simulationMode != SimulationMode.Build)
            {
                uREPL.Log.Error("Blocks can only be moved in Build Mode");
                return;
            }
            uint count = entitiesDB.Count<RotationEntityStruct>(CommonExclusiveGroups.OWNED_BLOCKS_GROUP);
            for (uint i = 0; i < count; i++)
            {
                RotateSingleBlock(i, eulerAngles);
            }
            uREPL.Log.Output($"Moved {count} blocks");
        }

        // Move block with highest index by vector (x,y,z)
        private void RotateLastBlockCommand(float x, float y, float z)
        {
            Vector3 eulerAngles = new Vector3(x, y, z);
            ref SimulationModeStateEntityStruct simMode = ref this.entitiesDB.QueryUniqueEntity<SimulationModeStateEntityStruct>(SimulationModeStateExclusiveGroups.GAME_STATE_GROUP);
            if (simMode.simulationMode != SimulationMode.Build)
            {
                uREPL.Log.Error("Blocks can only be moved in Build Mode");
                return;
            }
            uint count = entitiesDB.Count<RotationEntityStruct>(CommonExclusiveGroups.OWNED_BLOCKS_GROUP);
            if (count == 0)
            {
                uREPL.Log.Error("No block found");
                return;
            }
            Vector3 newRotation = RotateSingleBlock(count - 1, eulerAngles);
            uREPL.Log.Output($"Rotated block to ({newRotation.x},{newRotation.y},{newRotation.z})");
        }

        private float3 RotateSingleBlock(uint blockID, Vector3 rotationVector)
        {
            ref RotationEntityStruct rotStruct = ref this.entitiesDB.QueryEntity<RotationEntityStruct>(blockID, CommonExclusiveGroups.OWNED_BLOCKS_GROUP);
            ref GridRotationStruct gridStruct = ref this.entitiesDB.QueryEntity<GridRotationStruct>(blockID, CommonExclusiveGroups.OWNED_BLOCKS_GROUP);
            ref LocalTransformEntityStruct transStruct = ref this.entitiesDB.QueryEntity<LocalTransformEntityStruct>(blockID, CommonExclusiveGroups.OWNED_BLOCKS_GROUP);
            ref UECSPhysicsEntityStruct phyStruct = ref this.entitiesDB.QueryEntity<UECSPhysicsEntityStruct>(blockID, CommonExclusiveGroups.OWNED_BLOCKS_GROUP);
            // main (persistent) position
            Quaternion newRotation = (Quaternion)rotStruct.rotation;
            newRotation.eulerAngles += rotationVector;
            rotStruct.rotation = (quaternion)newRotation;
            // placement grid rotation
            Quaternion newGridRotation = (Quaternion)gridStruct.rotation;
            newGridRotation.eulerAngles += rotationVector;
            gridStruct.rotation = (quaternion)newGridRotation;
            // rendered position
            Quaternion newTransRotation = (Quaternion)rotStruct.rotation;
            newTransRotation.eulerAngles += rotationVector;
            transStruct.rotation = newTransRotation;
            // collision position
            this.physWorld.EntityManager.SetComponentData(phyStruct.uecsEntity, new Rotation
            {
                Value = rotStruct.rotation
            });
            return ((Quaternion)rotStruct.rotation).eulerAngles;
        }

        // unused; for future reference
        private void ToggleMode()
        {
            ref SimulationModeStateEntityStruct ptr = ref this.entitiesDB.QueryUniqueEntity<SimulationModeStateEntityStruct>(SimulationModeStateExclusiveGroups.GAME_STATE_GROUP);
            ref SimulationFrameEntityStruct ptr2 = ref this.entitiesDB.QueryUniqueEntity<SimulationFrameEntityStruct>(SimulationFrame.SimulationFrameGroup);
            switch (ptr.simulationMode)
            {
                case SimulationMode.Build:
                    ptr.nextSimulationMode = SimulationMode.SwitchToSim;
                    return;
                case SimulationMode.SwitchToSim:
                case SimulationMode.SwitchToBuild:
                    return;
                case SimulationMode.Simulation:
                    ptr.nextSimulationMode = SimulationMode.SwitchToBuild;
                    ptr.rigidBodiesCreated = false;
                    return;
                default:
                    throw new ArgumentOutOfRangeException();
            }
        }

        // unused; for future reference
        private IEnumerator<TaskContract> TriggerSwitchToSimTask()
        {
            this.ToggleMode();
            yield break;
        }

        // unused; for future reference
        private IEnumerator<TaskContract> WaitThenTriggerSwitchToBuildTask()
        {
            while (true)
            {
                SimulationModeStateEntityStruct modeStruct = this.entitiesDB.QueryUniqueEntity<SimulationModeStateEntityStruct>(SimulationModeStateExclusiveGroups.GAME_STATE_GROUP);
                if (modeStruct.simulationMode == SimulationMode.Simulation)
                {
                    this.ToggleMode();
                    break;
                } else
                {
                    yield return Yield.It;
                }
            }
            yield break;
        }

        public override void Dispose()
        {
            //CustomCommandUtility.Unregister("RotateBlocks");
            CustomCommandUtility.Unregister("RotateLastBlock");
        }
    }
}