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Make radius an actual radius

This commit is contained in:
Mattéo Delabre 2020-05-04 18:29:00 +02:00
parent 9c9afa2409
commit becafed267
Signed by: matteo
GPG Key ID: AE3FBD02DC583ABB
2 changed files with 7 additions and 67 deletions
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70
draw.mjs
View File

@ -1,81 +1,21 @@
import Vector from './vector.mjs';
const boidShape = [
new Vector(2, 0),
new Vector(-1, 1),
new Vector(-1, -1),
new Vector(2, 0),
new Vector(1, 0),
new Vector(-.5, .5),
new Vector(-.5, -.5),
new Vector(1, 0),
];
const boidShapeSize = boidShape.length;
const transformed = new Vector(0, 0);
export const boids = (activeBoids, params, ctx, width, height, center) =>
export const fill = (activeBoids, params, ctx, width, height, center) =>
{
const boidsSize = activeBoids.length;
ctx.clearRect(0, 0, width, height);
// // Draw each boid’s visibility and proximity zones
// ctx.beginPath();
// ctx.fillStyle = '#BBEE94';
// for (let boid of activeBoids)
// {
// const trans = boid.pos.add(center);
// ctx.moveTo(
// trans.x + params.visibleDist,
// trans.y
// );
// ctx.arc(
// trans.x, trans.y,
// params.visibleDist,
// 0, 2 * Math.PI
// );
// }
// ctx.fill();
// ctx.stroke();
// ctx.beginPath();
// ctx.fillStyle = '#EE9495';
// for (let boid of activeBoids)
// {
// const trans = boid.pos.add(center);
// ctx.moveTo(
// trans.x + params.closeDist,
// trans.y
// );
// ctx.arc(
// trans.x, trans.y,
// params.closeDist,
// 0, 2 * Math.PI
// );
// }
// ctx.fill();
// ctx.stroke();
// // Draw each boid’s velocity vector
// ctx.beginPath();
// ctx.strokeStyle = 'rgba(0, 0, 0, 0.5)';
// for (let boid of activeBoids)
// {
// const start = boid.pos.add(center);
// const end = start.add(boid.vel.mul(0.25));
// ctx.moveTo(start.x, start.y);
// ctx.lineTo(end.x, end.y);
// }
// ctx.stroke();
// Draw each boid’s head following the angle of its course
ctx.beginPath();
ctx.fillStyle = 'black';

4
index.mjs
View File

@ -12,7 +12,7 @@ const params = {
closeDist: 20,
visibleDist: 80,
radius: 5,
radius: 10,
};
const boidsCanvas = document.querySelector('#boids-canvas');
@ -58,7 +58,7 @@ const loop = time =>
lastTime = time;
boids.update(activeBoids, params, delta);
draw.boids(activeBoids, params, boidsCtx, width, height, center);
draw.fill(activeBoids, params, boidsCtx, width, height, center);
requestAnimationFrame(loop);
};