Merge branch 'gen2brain:master' into master

physics/README.md

@@ -2,4 +2,4 @@
 
 2D Physics library for videogames.
 
-A port of Victor Fisac's [physac engine](https://github.com/raysan5/raylib/blob/master/src/physac.h).
+A port of Victor Fisac's [physac engine](https://github.com/raysan5/physac/blob/master/src/physac.h).

raygui/raygui.go

@@ -621,6 +621,8 @@ func Grid(bounds rl.Rectangle, text string, spacing float32, subdivs int32, mous
 	cmouseCell.x = C.float(mouseCell.X)
 	cmouseCell.y = C.float(mouseCell.Y)
 	res := C.GuiGrid(cbounds, ctext, cspacing, csubdivs, &cmouseCell)
+	mouseCell.X = float32(cmouseCell.x)
+	mouseCell.Y = float32(cmouseCell.y)
 	return int32(res)
 }
 

raylib/rmodels.go

@@ -93,6 +93,15 @@ func DrawCircle3D(center Vector3, radius float32, rotationAxis Vector3, rotation
 	C.DrawCircle3D(*ccenter, cradius, *crotationAxis, crotationAngle, *ccolor)
 }
 
+// DrawTriangle3D - Draw a color-filled triangle (vertex in counter-clockwise order!)
+func DrawTriangle3D(v1 Vector3, v2 Vector3, v3 Vector3, col color.RGBA) {
+	cv1 := v1.cptr()
+	cv2 := v2.cptr()
+	cv3 := v3.cptr()
+	ccolor := colorCptr(col)
+	C.DrawTriangle3D(*cv1, *cv2, *cv3, *ccolor)
+}
+
 // DrawCube - Draw cube
 func DrawCube(position Vector3, width float32, height float32, length float32, col color.RGBA) {
 	cposition := position.cptr()