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Introduction

In this episode, the plane can be moved in all directions using the arrow keys, its speed can be adjusted from the inspector, and the plane cannot go out of the screen. Hello, welcome back. In episode 3, we write our first GDScript script to move the plane. We get to know the underscore process function, which runs every frame.

Step 1

Select the player node, then click the attack script button. Disable use template so that the script is empty. Name it player.gd, then create. The script editor opens. Type a speed variable with the add export tag, so its value appears in the inspector and can be changed without touching the code. Its initial value is 400 pixels per second. Then the underscore process function with the delta parameter, which is the time since the previous frame. Input get vector reads the 4 direction keys at once into 1 vector. Position is added with direction multiplied by speed multiplied by delta, so the movement is smooth on both fast and slow computers. To prevent the plane from going out of the screen, we get the screen size with gate view portrait, then limit the X and Y positions with the clamp function. Save with Ctrl+S, then press F6 to run this scene only. Press the arrow keys, the plane moves smoothly and stops at the edge of the screen.

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Transcript

0:03Introduction

0:28Step 1

2:29KpOZID — KPII2ID KPo4ZID npa-ID

2:42Kpo3ID KPI 2ID KP343ID NP

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Transcript

0:03Introduction

0:28Step 1

2:29KpOZID — KPII2ID KPo4ZID npa-ID

2:42Kpo3ID KPI 2ID KP343ID NP

Ask the class material

My notes

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Introduction

Step 1

KpOZID — KPII2ID KPo4ZID npa-ID

Kpo3ID KPI 2ID KP343ID NP

Introduction

Step 1

KpOZID — KPII2ID KPo4ZID npa-ID

Kpo3ID KPI 2ID KP343ID NP