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March 23, 2024 23:42
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godot 4, C#, transition states
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| using Godot; | |
| using System; | |
| public partial class DashState : Node | |
| { | |
| Player characterNode; | |
| public override void _Ready() | |
| { | |
| base._Ready(); | |
| characterNode = GetOwner<Player>(); | |
| characterNode.animationPlayerNode.Play(GameConstants.ANIM_DASH); | |
| } | |
| public override void _Notification(int what) | |
| { | |
| base._Notification(what); | |
| if(what == GameConstants.DASH_STATE) | |
| { | |
| GD.Print("DashState Active"); | |
| characterNode.animationPlayerNode.Play(GameConstants.ANIM_DASH); | |
| } | |
| } | |
| public override void _PhysicsProcess(double delta) | |
| { | |
| if(characterNode.animationPlayerNode.IsPlaying() == false) | |
| { | |
| characterNode.stateMachineNode.SwitchStates<IdleState>(); | |
| } | |
| } | |
| } |
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| using System; | |
| using System.Collections.Generic; | |
| public partial class GameConstants { | |
| // ANIMATION CONSTANTS | |
| public const String ANIM_IDLE = "Idle"; | |
| public const String ANIM_MOVE = "move"; | |
| public const String ANIM_DASH = "Dash"; | |
| } | |
| public partial class GameConstants { | |
| public const int IDLE_STATE = 5001; | |
| public const int MOVE_STATE = 5002; | |
| public const int DISABLE_NODE = 5003; | |
| public const int DASH_STATE = 5005; | |
| } | |
| public partial class GameConstants { | |
| // INPUT CONSTANTS | |
| public const String INPUT_MOVE_LEFT = "MoveLeft"; | |
| public const String INPUT_MOVE_RIGHT = "MoveRight"; | |
| public const String INPUT_MOVE_FORWARD = "MoveForward"; | |
| public const String INPUT_MOVE_BACKWARD = "MoveBackward"; | |
| public const String INPUT_DASH = "Dash"; | |
| } |
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| using Godot; | |
| using System; | |
| public partial class IdleState : Node | |
| { | |
| Player characterNode; | |
| public override void _Ready() | |
| { | |
| base._Ready(); | |
| characterNode = GetOwner<Player>(); | |
| SetPhysicsProcess(false); | |
| } | |
| public override void _PhysicsProcess(double delta) | |
| { | |
| //GD.Print("IdleState Physics Process"); | |
| base._PhysicsProcess(delta); | |
| if(characterNode.direction == Vector2.Zero) | |
| { | |
| if(characterNode.stateMachineNode.currentState.Name == "IdleState") | |
| characterNode.stateMachineNode.SwitchStates<IdleState>(); | |
| } | |
| } | |
| public override void _Notification(int what) | |
| { | |
| base._Notification(what); | |
| if (what == GameConstants.IDLE_STATE) | |
| { | |
| characterNode.animationPlayerNode.Play(GameConstants.ANIM_IDLE); | |
| SetPhysicsProcess(true); | |
| } | |
| else if (what == GameConstants.DISABLE_NODE) | |
| { | |
| SetPhysicsProcess(false); | |
| } | |
| } | |
| public override void _Input(InputEvent @event) | |
| { | |
| base._Input(@event); | |
| if(Input.IsActionJustPressed(GameConstants.INPUT_DASH)) | |
| { | |
| characterNode.stateMachineNode.SwitchStates<DashState>(); | |
| } | |
| } | |
| } |
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| using Godot; | |
| using System; | |
| public partial class MoveState : Node | |
| { | |
| Player characterNode; | |
| public override void _Ready() | |
| { | |
| base._Ready(); | |
| characterNode = GetOwner<Player>(); | |
| characterNode.animationPlayerNode.Play(GameConstants.ANIM_MOVE); | |
| } | |
| public override void _Notification(int what) | |
| { | |
| base._Notification(what); | |
| if(what == GameConstants.MOVE_STATE) | |
| { | |
| Player characterNode = GetOwner<Player>(); | |
| characterNode.animationPlayerNode.Play(GameConstants.ANIM_MOVE); | |
| SetPhysicsProcess(true); | |
| } | |
| } | |
| public override void _PhysicsProcess(double delta) | |
| { | |
| base._PhysicsProcess(delta); | |
| //GD.Print("Move State Physics Process"); | |
| if(characterNode.direction != Vector2.Zero && | |
| characterNode.stateMachineNode.currentState.Name != "DashState" ) | |
| { | |
| characterNode.stateMachineNode.SwitchStates<MoveState>(); | |
| } | |
| else if(characterNode.stateMachineNode.currentState.Name == "DashState") | |
| { | |
| characterNode.stateMachineNode.SwitchStates<DashState>(); | |
| } | |
| else | |
| { | |
| characterNode.stateMachineNode.SwitchStates<IdleState>(); | |
| } | |
| } | |
| public override void _Input(InputEvent @event) | |
| { | |
| base._Input(@event); | |
| if(Input.IsActionJustPressed(GameConstants.INPUT_DASH)) | |
| { | |
| characterNode.stateMachineNode.SwitchStates<DashState>(); | |
| } | |
| } | |
| } |
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| using Godot; | |
| using System; | |
| public partial class StateMachine : Node | |
| { | |
| [Export] public Node currentState; | |
| [Export] public Node[] States; | |
| public override void _Ready() | |
| { | |
| currentState.Notification(GameConstants.IDLE_STATE); | |
| } | |
| public void SwitchStates<T>() | |
| { | |
| Node newState = null; | |
| foreach (Node state in States) | |
| { | |
| if (state is T) | |
| { | |
| newState = state; | |
| } | |
| } | |
| if(newState == null) { return;} | |
| currentState = newState; | |
| if(currentState.Name == "IdleState") | |
| { | |
| currentState.Notification(GameConstants.IDLE_STATE); | |
| } | |
| if(currentState.Name == "MoveState") | |
| { | |
| currentState.Notification(GameConstants.MOVE_STATE); | |
| } | |
| if(currentState.Name == "DashState") | |
| { | |
| GD.Print("DASH STATE"); | |
| currentState.Notification(GameConstants.DASH_STATE); | |
| } | |
| } | |
| } |
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