Quick Otter Camera Example
A question about the camera in Otter came up on the forums, and I whipped up a small example that could be useful to take a look at for getting started with Otter in general. The whole program is just this little chunk of code:
Compiling that with the latest dev version of Otter gives you a simple player object that can move around a scene. The background is a grid so that you can actually see scrolling happening. This quickly shows how to set up a movement Axis, how to apply speed to an object while getting input from the Axis, and how to center the camera on the object.
using Otter;using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace CameraTestThing { class Program { static void Main(string[] args) { var game = new Game("Camera Test", 320, 180); game.SetWindowScale(4); game.Start(new TestScene()); } } class TestScene : Scene { public TestScene() { var grid = new Grid(1000, 1000, 20, 20, Color.Grey); AddGraphic(grid); Add(new Player()); } } class Player : Entity { Vector2 speed = new Vector2(); Vector2 targetSpeed = new Vector2(); Vector2 maxSpeed = new Vector2(2, 2); float accel = 0.01f; Axis movementAxis = Axis.CreateArrowKeys(); public Player() { SetGraphic(Image.CreateRectangle(10, Color.Red)); AddComponent(movementAxis); } public override void Update() { base.Update(); targetSpeed.X = movementAxis.X * maxSpeed.X; targetSpeed.Y = movementAxis.Y * maxSpeed.Y; speed.X = Util.Approach(speed.X, targetSpeed.X, accel); speed.Y = Util.Approach(speed.Y, targetSpeed.Y, accel); X += speed.X; Y += speed.Y; Scene.CenterCamera(X, Y); } }} |
Compiling that with the latest dev version of Otter gives you a simple player object that can move around a scene. The background is a grid so that you can actually see scrolling happening. This quickly shows how to set up a movement Axis, how to apply speed to an object while getting input from the Axis, and how to center the camera on the object.
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