func main() {
flag.Parse()
v = game.NewVault()
v.PlaceRoom(9, 0, 1)
v.PlaceRoom(9, 1, 1)
v.PlaceRoom(10, 1, 2)
// setup transparency for sprites
gl.Disable(gl.DEPTH_TEST)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
app.Main(func(a app.App) {
var sz size.Event
for e := range a.Events() {
switch e := app.Filter(e).(type) {
case size.Event:
sz = e
case paint.Event:
onPaint(sz)
a.EndPaint(e)
}
}
})
}
func (scene *Floor) Draw(camera Camera) {
shader, _ := scene.UseShader(nil)
gl.Enable(gl.STENCIL_TEST)
gl.StencilFunc(gl.ALWAYS, 1, 0xFF)
gl.StencilOp(gl.KEEP, gl.KEEP, gl.REPLACE)
gl.StencilMask(0xFF)
gl.DepthMask(false)
gl.Clear(gl.STENCIL_BUFFER_BIT)
// Draw floor
gl.Uniform3fv(shader.Uniform("material.ambient"), []float32{0.1, 0.1, 0.1})
scene.Shape.Draw(shader, camera)
// Draw reflections
gl.StencilFunc(gl.EQUAL, 1, 0xFF)
gl.StencilMask(0x00)
gl.DepthMask(true)
view := camera.View()
gl.Uniform3fv(shader.Uniform("material.ambient"), []float32{0.3, 0.3, 0.3})
for _, node := range scene.reflected {
model := node.Transform(scene.transform)
gl.UniformMatrix4fv(shader.Uniform("model"), model[:])
normal := model.Mul4(view).Inv().Transpose()
gl.UniformMatrix4fv(shader.Uniform("normalMatrix"), normal[:])
node.Draw(camera)
}
gl.Disable(gl.STENCIL_TEST)
}
func (e *Engine) Draw(c config.Event) {
now := time.Now()
interval := now.Sub(e.lastTick)
e.lastTick = now
// Handle key presses
var camDelta mgl.Vec3
if e.bindings.Pressed(KeyCamForward) {
camDelta[2] -= moveSpeed
}
if e.bindings.Pressed(KeyCamReverse) {
camDelta[2] += moveSpeed
}
if e.bindings.Pressed(KeyCamLeft) {
camDelta[0] -= moveSpeed
}
if e.bindings.Pressed(KeyCamRight) {
camDelta[0] += moveSpeed
}
if e.bindings.Pressed(KeyCamUp) {
e.camera.MoveTo(e.camera.Position().Add(mgl.Vec3{0, moveSpeed, 0}))
}
if e.bindings.Pressed(KeyCamDown) {
e.camera.MoveTo(e.camera.Position().Add(mgl.Vec3{0, -moveSpeed, 0}))
}
if camDelta[0]+camDelta[1]+camDelta[2] != 0 {
e.following = false
e.camera.Move(camDelta)
} else if e.following {
pos := e.world.Focus().Position()
e.camera.Lerp(pos.Add(e.followOffset), pos, 0.1)
}
gl.ClearColor(0, 0, 0, 1)
//gl.Clear(gl.COLOR_BUFFER_BIT)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.Enable(gl.DEPTH_TEST)
//gl.Disable(gl.CULL_FACE)
//gl.DepthFunc(gl.LESS)
//gl.SampleCoverage(4.0, false)
if !e.paused {
err := e.world.Tick(interval)
if err != nil {
e.paused = true
e.gameover = true
}
}
e.scene.Draw(e.camera)
gl.Disable(gl.DEPTH_TEST)
debug.DrawFPS(c)
}