Raycast
Raycasting for the Heaps io game engine.
Usage
package;
import raycast.Ray;
class Main extends hxd.App {
static function main() {
new Main();
}
override function init() {
var ray0 = new Ray(32, 32, 64, 64);
var ray1 = new Ray(32, 48, 96, 12);
var hit = ray0.isIntersecting(ray1);
if (hit != null) {
trace("Your intersection point is: " + hit);
}
}Visualize
If there is an intersecting point between the given 2 rays then it will return a point that contains x and y coordinates otherwise you get null. Additionally You can set a debug mode in the ray constructer to visualize the rays.
var ray0 = new Ray(32, 32, 64, 64, {parent: s2d, color: 0xFF0000});
var ray1 = new Ray(32, 48, 96, 12, {parent: s2d, color: 0xFF0000});To visualize the intersecting point we can create a function that draws a circle at the given function paramter position. We pass our hit point coordinates into the function.
override function init() {
var ray0 = new Ray(32, 32, 64, 64, {parent: s2d, color: 0xFF0000});
var ray1 = new Ray(32, 48, 96, 12, {parent: s2d, color: 0xFF0000});
var hit = ray0.isIntersecting(ray1);
if (hit != null) {
trace("Your intersection point is: " + hit);
drawCircle(hit.x, hit.y, s2d);
}
}
function drawCircle(x, y, parent) {
var g = new Graphics(parent);
g.beginFill(0xFFFFFF);
g.drawCircle(x, y, 4, 12);
g.endFill();
}Results
Get from https://lib.haxe.org/p/raycast/
