Update C sources and examples

examples/core/vr_simulator/main.go

@@ -0,0 +1,58 @@
+package main
+
+import (
+	"github.com/gen2brain/raylib-go/raylib"
+)
+
+func main() {
+	screenWidth := int32(1080)
+	screenHeight := int32(600)
+
+	// NOTE: screenWidth/screenHeight should match VR device aspect ratio
+
+	raylib.InitWindow(screenWidth, screenHeight, "raylib [core] example - vr simulator")
+
+	// NOTE: default device (simulator)
+	raylib.InitVrSimulator(raylib.HmdOculusRiftCv1) // Init VR device (Oculus Rift CV1)
+
+	camera := raylib.Camera{}
+	camera.Position = raylib.NewVector3(5.0, 2.0, 5.0) // Camera position
+	camera.Target = raylib.NewVector3(0.0, 2.0, 0.0)   // Camera looking at point
+	camera.Up = raylib.NewVector3(0.0, 1.0, 0.0)       // Camera up vector (rotation towards target)
+	camera.Fovy = 60.0                                 // Camera field-of-view Y
+
+	cubePosition := raylib.NewVector3(0.0, 0.0, 0.0)
+
+	raylib.SetCameraMode(camera, raylib.CameraFirstPerson) // Set first person camera mode
+
+	raylib.SetTargetFPS(90)
+
+	for !raylib.WindowShouldClose() {
+		raylib.UpdateCamera(&camera) // Update camera (simulator mode)
+
+		raylib.BeginDrawing()
+
+		raylib.ClearBackground(raylib.RayWhite)
+
+		raylib.BeginVrDrawing()
+
+		raylib.Begin3dMode(camera)
+
+		raylib.DrawCube(cubePosition, 2.0, 2.0, 2.0, raylib.Red)
+		raylib.DrawCubeWires(cubePosition, 2.0, 2.0, 2.0, raylib.Maroon)
+
+		raylib.DrawGrid(40, 1.0)
+
+		raylib.End3dMode()
+
+		raylib.EndVrDrawing()
+
+		raylib.DrawFPS(10, 10)
+
+		raylib.EndDrawing()
+	}
+
+	raylib.CloseVrSimulator() // Close VR simulator
+
+	raylib.CloseWindow()
+}