Add Color4 methods

math32/array.go

@@ -61,6 +61,13 @@ func (a *ArrayF32) AppendColor(v ...*Color) {
 	}
 }
 
+func (a *ArrayF32) AppendColor4(v ...*Color4) {
+
+	for i := 0; i < len(v); i++ {
+		*a = append(*a, v[i].R, v[i].G, v[i].B, v[i].A)
+	}
+}
+
 func (a ArrayF32) GetVector2(pos int, v *Vector2) {
 
 	v.X = a[pos]

math32/color4.go

@@ -54,6 +54,15 @@ func (c *Color4) SetName(name string) *Color4 {
 	return c.SetHex(colorKeywords[name])
 }
 
+func (c *Color4) Add(other *Color4) *Color4 {
+
+	c.R += other.R
+	c.G += other.G
+	c.B += other.B
+	c.A += other.A
+	return c
+}
+
 func (c *Color4) MultiplyScalar(v float32) *Color4 {
 
 	c.R *= v