feat(playcanvas): operator for Vec4

basics · Jun 25, 2020 · 5f84b3d · 5f84b3d
1 parent 2d7f198
commit 5f84b3d
Show file tree

Hide file tree

Showing 2 changed files with 22 additions and 1 deletion.
diff --git a/src/adapter/README.md b/src/adapter/README.md
@@ -38,8 +38,10 @@ add `https://unpkg.com/@js-basics/vector/build/iife/adapter/playcanvas.min.js` t
 - `pc.cross(...)` short notation `Vec3().cross`
 - `pc.vec3(...)` short notation `new pc.Vec3(...)`
 - `pc.vec2(...)` short notation `new pc.Vec2(...)`
+- `pc.vec4(...)` short notation `new pc.Vec4(...)`
 - `Vec3().len` getter for `Vec3().length()`
 - `Vec2().len` getter for `Vec2().length()`
+- `Vec4().len` getter for `Vec4().length()`
 
 ### pc.calc()
 

diff --git a/src/adapter/playcanvas.js b/src/adapter/playcanvas.js
@@ -10,7 +10,7 @@ function fallbackWindow() {
 }
 export function hijackPlayCanvas(pc) {
   const {
-    Vec2, Vec3, Quat, Mat4, math
+    Vec2, Vec3, Vec4, Quat, Mat4, math
   } = pc;
   const {
     LEFT, FORWARD, UP, RIGHT, ZERO
@@ -37,6 +37,16 @@ export function hijackPlayCanvas(pc) {
     return vec3Factory(x, y, z);
   };
 
+  cachedValueOf(Vec4);
+  defineVectorLength(Vec4, 4);
+  const vec4Factory = cachedFactory(Vec4);
+  pc.vec4 = (x, y, z, w) => {
+    if (typeof x === 'function') {
+      return operatorCalc(x, new Vec4());
+    }
+    return vec4Factory(x, y, z, w);
+  };
+
   pc.calc = operatorCalc;
 
   Object.defineProperty(Quat.prototype, 'left', {
@@ -134,6 +144,15 @@ export function hijackPlayCanvas(pc) {
       throw new Error('set len not allowed');
     }
   });
+
+  Object.defineProperty(Vec4.prototype, 'len', {
+    get() {
+      return this.length();
+    },
+    set() {
+      throw new Error('set len not allowed');
+    }
+  });
 }
 
 // eslint-disable-next-line no-undef