// Render updates the screen, based on the new positions of the bats and the ball.
func render() {
var fps uint32
fps = 60
var delay uint32
delay = 1000 / fps
var frameStart uint32
frameStart = sdl.GetTicks()
renderer.Clear()
renderMyBat()
renderComputersBat()
renderScore()
// if the game is over render the gameOver graphic
if gameOver == true {
renderGameOver()
} else {
// otherwise we need to draw the ball
renderBall()
}
// Show the game window window.
renderer.Present()
var frameTime uint32
frameTime = sdl.GetTicks() - frameStart
if frameTime < delay {
sdl.Delay(delay - frameTime)
}
}
func MainLoop(gs *gamestate.GameState, renderer *rendering.WorldRenderer) {
var frames int
time := float32(sdl.GetTicks()) / 1000
window := gs.Window
running := true
for running {
currentTime := float32(sdl.GetTicks()) / 1000
if currentTime > time+1 {
gs.Fps = float32(frames)
frames = 0
time = currentTime
}
frames += 1
running = Input(gs, renderer)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.Disable(gl.BLEND)
simulation.Simulate(gs, renderer.ParticleSystem)
renderer.View = gs.Camera.View()
renderer.Render(gs.World, &gs.Options, window)
tw.Draw()
sdl.GL_SwapWindow(window)
helpers.UpdateManagers()
}
}
func main() {
start()
defer window.Destroy()
defer renderer.Destroy()
text := loadText("Press enter to reset", sdl.Color{0, 0, 0, 255})
startTime := sdl.GetTicks()
quit := false
for !quit {
for e := sdl.PollEvent(); e != nil; e = sdl.PollEvent() {
switch t := e.(type) {
case *sdl.QuitEvent:
quit = true
case *sdl.KeyDownEvent:
if t.Keysym.Sym == sdl.K_RETURN {
startTime = sdl.GetTicks()
}
}
}
renderer.SetDrawColor(0xFF, 0xFF, 0xFF, 0xFF)
renderer.Clear()
timeText := loadText(fmt.Sprintf("time: %d", sdl.GetTicks()-startTime), sdl.Color{0, 0, 0, 255})
renderer.Copy(text, nil, &sdl.Rect{0, 0, 400, 100})
renderer.Copy(timeText, nil, &sdl.Rect{400, 0, 400, 100})
renderer.Present()
}
}
func main() {
rom, err := LoadROM(os.Args[1])
if err != nil {
panic(err)
}
frameDelay := 1000 / frameRate
window := sdl.CreateWindow(
"Go NES",
sdl.WINDOWPOS_UNDEFINED,
sdl.WINDOWPOS_UNDEFINED,
256,
240,
sdl.WINDOW_SHOWN,
)
if window == nil {
panic(sdl.GetError())
}
defer window.Destroy()
controller := NewController()
ppu := NewPPU(window, NewVRAM(rom.Mapper()))
cpu := NewCPU(NewMMU(rom.Mapper(), ppu, controller), ppu)
ticksPerFrame := uint32(341 * 262)
for {
expectedTicks := sdl.GetTicks() + frameDelay
for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
switch event := event.(type) {
case *sdl.KeyDownEvent:
controller.SetKeyState(event.Keysym.Sym, true)
case *sdl.KeyUpEvent:
controller.SetKeyState(event.Keysym.Sym, false)
case *sdl.QuitEvent:
return
}
}
ppuTicks := uint32(0)
for ppuTicks < ticksPerFrame {
ppuTicks += ppu.Tick(cpu.Tick())
}
actualTicks := sdl.GetTicks()
if actualTicks < expectedTicks {
sdl.Delay(expectedTicks - actualTicks)
}
}
}
func (g *Game) tick() {
//var ticks uint32
g.defaultSleep = 300 // this param will control the speed somehow TODO Fix this
sdl.Delay(1)
if sdl.GetTicks()%g.defaultSleep == 0 {
g.heartbeat(sdl.GetTicks())
}
}
// DelayToNextFrame waits until it's time to do the next event/render loop
func (g *GameManager) DelayToNextFrame() {
curTime := sdl.GetTicks()
if g.prevFrameTime == 0 {
if curTime >= g.FrameDelay {
g.prevFrameTime = curTime - g.FrameDelay
}
}
diff := curTime - g.prevFrameTime
if g.FrameDelay > diff {
frameDelayUnder := g.FrameDelay - diff
// we have not yet exceeded one frame, so we need to sleep
//fmt.Printf("Under: %d %d %d %d\n", curTime, g.prevFrameTime, diff, frameDelayUnder)
sdl.Delay(frameDelayUnder)
} else {
//frameDelayOver := diff - g.FrameDelay
//fmt.Printf("Over: %d %d %d %d\n", curTime, g.prevFrameTime, diff, frameDelayOver)
// we have exceeded one frame, so no sleep
// TODO sleep less in the future to make up for it?
}
g.prevFrameTime = curTime
}
// GetTickCount returns the amount of time that has passed since the toolbox
// was initialised.
//
// The toolbox counts time in 'ticks'. One 'tick' is 1/1000th of a second.
// Time starts when Initialise() is called. The number for ticks always
// increases. The number of ticks cannot be reset, and time does cannot
// run backwards.
//
// If the function succeeds then a variable of type int64 will be returned
// back to the calling function. It is the programmers responsibility to
// store this in a variable of type int64.
// GetTickCount returns an int64 type, not an int because the maximum number
// of ticks is to large to store in an int.
//
// GetTickCount will panic if:
//
// 1. The toolbox has not been initialised.
func GetTickCount() int64 {
if !initialised {
// this stops execution here, so ne need for an else after the if
panic(notInitialisedMessage)
}
var ticks uint32
ticks = sdl.GetTicks()
return int64(ticks)
}
func main() {
// Run the game on main thread only.
// This is important because SDL will freeze / crash
// if an action is running outside the main thread
runtime.LockOSThread()
// Show us a welomce message
log.Println("Welcome to Kaori")
// Don't forget to say goodbye ;)
defer log.Println("Goodbye o/")
// Show information about the runtime
log.Printf("Compiled with %s for %s %s\n", runtime.Compiler, runtime.GOOS, runtime.GOARCH)
// Don't forget to clean the game after it's done
game.Init("Kaori", sdl.WINDOWPOS_CENTERED, sdl.WINDOWPOS_CENTERED, 800, 600, false)
// Don't forget to clean the game after it's done
defer game.Clean()
for game.Running() {
// Get the current time to mark a frame start
frameStart = sdl.GetTicks()
// Run all of the 'update' functions
game.HandleEvents()
game.Update()
game.Render()
// Record the time
frameTime = sdl.GetTicks() - frameStart
// Check if it's faster than delay time
if frameTime < DELAY_TIME {
// If it is faster, delay the game to prevent "speeding" on certain tick event
sdl.Delay(DELAY_TIME - frameTime)
}
}
}
// updateState watches for internal state changes
func (ps *PlayState) updateState() {
curTime := sdl.GetTicks()
diff := curTime - ps.state.startTime
switch ps.state.state {
case stateInterlude:
var duration uint32
switch ps.level {
case 1:
duration = stateInterludeDurationLevel1
default:
duration = stateInterludeDuration
}
if diff >= duration {
ps.setState(stateAction)
}
case stateAction:
}
}
func main() {
var window *sdl.Window
var renderer *sdl.Renderer
var event sdl.Event
var running bool
window = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED,
winWidth, winHeight, sdl.WINDOW_SHOWN)
if window == nil {
fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", sdl.GetError())
os.Exit(1)
}
renderer = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED)
if renderer == nil {
fmt.Fprintf(os.Stderr, "Failed to create renderer: %s\n", sdl.GetError())
os.Exit(2)
}
var peepArray []sdl.Event = make([]sdl.Event, 2)
peepArray[0] = &sdl.UserEvent{sdl.USEREVENT, sdl.GetTicks(), window.GetID(), 1331, nil, nil}
peepArray[1] = &sdl.UserEvent{sdl.USEREVENT, sdl.GetTicks(), window.GetID(), 10101, nil, nil}
running = true
lastPushTime := sdl.GetTicks()
for running {
if lastPushTime+pushTime < sdl.GetTicks() {
lastPushTime = sdl.GetTicks()
sdl.PumpEvents()
numEventsHandled := sdl.PeepEvents(peepArray, sdl.ADDEVENT, sdl.FIRSTEVENT, sdl.LASTEVENT)
if numEventsHandled < 0 {
fmt.Printf("PeepEvents error: %s\n", sdl.GetError())
} else {
fmt.Printf("Successful push of %d events\n", numEventsHandled)
}
}
for event = sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
switch t := event.(type) {
case *sdl.QuitEvent:
running = false
case *sdl.MouseMotionEvent:
fmt.Printf("[%d ms] MouseMotion\ttype:%d\tid:%d\tx:%d\ty:%d\txrel:%d\tyrel:%d\n",
t.Timestamp, t.Type, t.Which, t.X, t.Y, t.XRel, t.YRel)
case *sdl.MouseButtonEvent:
fmt.Printf("[%d ms] MouseButton\ttype:%d\tid:%d\tx:%d\ty:%d\tbutton:%d\tstate:%d\n",
t.Timestamp, t.Type, t.Which, t.X, t.Y, t.Button, t.State)
case *sdl.MouseWheelEvent:
fmt.Printf("[%d ms] MouseWheel\ttype:%d\tid:%d\tx:%d\ty:%d\n",
t.Timestamp, t.Type, t.Which, t.X, t.Y)
case *sdl.KeyUpEvent:
fmt.Printf("[%d ms] Keyboard\ttype:%d\tsym:%c\tmodifiers:%d\tstate:%d\trepeat:%d\n",
t.Timestamp, t.Type, t.Keysym.Sym, t.Keysym.Mod, t.State, t.Repeat)
case *sdl.UserEvent:
fmt.Printf("[%d ms] UserEvent\tcode:%d\n", t.Timestamp, t.Code)
}
}
sdl.Delay(1000 / 30)
}
renderer.Destroy()
window.Destroy()
}
func windowLoop(window *sdl.Window) {
data := &renderData{}
data.renderSections = true
data.zoom = -250
data.nodes = loadTree("cmd/packer/test.priv.oct")
data.box = genBox()
defer gl.DeleteLists(data.box, 1)
buttonDown := false
t := float64(sdl.GetTicks())
for {
ticks := float64(sdl.GetTicks()) * 0.001
dt := ticks - t
t = ticks
for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
switch t := event.(type) {
case *sdl.QuitEvent:
return
case *sdl.KeyDownEvent:
switch t.Keysym.Sym {
case sdl.K_ESCAPE:
return
case sdl.K_SPACE:
data.renderSections = !data.renderSections
case sdl.K_PLUS:
data.minNodeSize += 1.0
case sdl.K_MINUS:
data.minNodeSize -= 1.0
}
case *sdl.MouseButtonEvent:
if t.State == 1 {
buttonDown = true
} else {
buttonDown = false
}
case *sdl.MouseMotionEvent:
if buttonDown {
data.xrot += dt * float64(t.YRel) * rotSpeed
data.yrot += dt * float64(t.XRel) * rotSpeed
}
case *sdl.MouseWheelEvent:
data.zoom += dt * float64(t.Y) * rotSpeed
}
}
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
renderTree(data, &data.nodes[0], point3d{0, 0, 0}, 100)
gl.Disable(gl.DEPTH_TEST)
drawAxis(data)
gl.Enable(gl.DEPTH_TEST)
sdl.GL_SwapWindow(window)
if glErr := gl.GetError(); glErr != gl.NO_ERROR {
panic(fmt.Errorf("GL error: %x", glErr))
}
}
}
func (this *WorldRenderer) render(ww *gamestate.World, options *settings.BoolOptions, viewport Viewport, recursion int, srcPortal *gamestate.Portal) {
this.Framebuffer[recursion].Bind()
defer this.Framebuffer[recursion].Unbind()
gl.Clear(gl.DEPTH_BUFFER_BIT)
camera := gamestate.NewCameraFromMat4(this.View)
Rot2D := camera.Rotation2D()
gl.CullFace(gl.BACK)
time := float64(sdl.GetTicks()) / 1000
if options.Wireframe {
gl.PolygonMode(gl.FRONT_AND_BACK, gl.LINE)
} else {
gl.PolygonMode(gl.FRONT_AND_BACK, gl.FILL)
}
if options.Skybox {
gl.Disable(gl.DEPTH_TEST)
this.SkyboxRenderer.Render(this.Skybox, this.Proj, this.View, this.ClippingPlane_ws, nil)
gl.Enable(gl.DEPTH_TEST)
}
gl.Enable(gl.CULL_FACE)
if recursion != 0 {
gl.Enable(gl.CLIP_DISTANCE0)
defer gl.Disable(gl.CLIP_DISTANCE0)
}
for _, entity := range ww.ExampleObjects {
this.MeshRenderer.Render(entity, this.Proj, this.View, this.ClippingPlane_ws, nil)
}
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Disable(gl.CULL_FACE)
if options.WorldRender {
this.HeightMapRenderer.Render(ww.HeightMap, this.Proj, this.View, this.ClippingPlane_ws, nil)
}
PlayerPos := ww.Player.Position()
ww.Water.Height = PlayerPos[2] - 15
if options.WaterRender {
this.WaterRendererA.Render(ww.Water, this.Proj, this.View, this.ClippingPlane_ws, WaterRenderUniforms{time, PlayerPos})
}
if options.WaterNormals {
this.WaterRendererB.Render(ww.Water, this.Proj, this.View, this.ClippingPlane_ws, WaterRenderUniforms{time, PlayerPos})
}
gl.Disable(gl.CULL_FACE)
gl.Disable(gl.BLEND)
if options.TreeRender {
this.TreeRenderer.Render(ww.Trees, this.Proj, this.View, this.ClippingPlane_ws, Rot2D)
}
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE)
if options.ParticleRender {
this.ParticleSystem.Render(this.Proj, this.View, this.ClippingPlane_ws)
}
gl.Disable(gl.BLEND)
boxVertices := (*gamestate.TriangleMesh)(gamestate.QuadMesh()).MakeBoxVertices()
pv := this.Proj.Mul4(this.View)
// calculating nearest portal
pos4f := this.View.Inv().Mul4x1(mgl.Vec4{0, 0, 0, 1})
nearestPortal := ww.NearestPortal(pos4f)
// draw all portals except the nearest and the portal that we are looking throug
for _, portal := range ww.Portals {
// do not draw the nearest portal or the portal behind the source portal if available
if (nearestPortal != portal) && (srcPortal == nil || srcPortal.Target != portal) {
gl.Enable(gl.DEPTH_CLAMP)
additionalUniforms := map[string]int{"Image": 7}
this.PortalRenderer.Render(portal, this.Proj, this.View, this.ClippingPlane_ws, additionalUniforms)
}
}
gl.Disable(gl.BLEND)
gl.Disable(gl.CULL_FACE)
if options.DebugLines {
if options.DepthTestDebugLines {
gl.Disable(gl.DEPTH_TEST)
}
this.DebugRenderer.Render(this.Proj, this.View)
gl.Enable(gl.DEPTH_TEST)
}
// draw
if recursion < this.MaxRecursion {
portal := nearestPortal
pos := portal.Position
rotation := portal.Orientation.Mat4()
Model := mgl.Translate3D(pos[0], pos[1], pos[2]).Mul4(rotation)
pvm := pv.Mul4(Model)
meshMin := mgl.Vec4{math.MaxFloat32, math.MaxFloat32, math.MaxFloat32, math.MaxFloat32}
meshMax := mgl.Vec4{-math.MaxFloat32, -math.MaxFloat32, -math.MaxFloat32, -math.MaxFloat32}
for _, v := range boxVertices {
v = pvm.Mul4x1(v)
v = v.Mul(1 / v[3])
meshMin = gamestate.Min(meshMin, v)
meshMax = gamestate.Max(meshMax, v)
}
// at least partially visible
if -1 < meshMax[0] && meshMin[0] < 1 &&
-1 < meshMax[1] && meshMin[1] < 1 &&
-1 < meshMax[2] && meshMin[2] < 1 {
p1x, p1y := viewport.ToPixel(meshMin.Vec2())
p2x, p2y := viewport.ToPixel(meshMax.Vec2())
pw, ph := p2x-p1x, p2y-p1y
// do scissoring only when all vertices are in front of the camera
scissor := meshMax[2] < 1
scissor = scissor && (p1x != 0 || p1y != 0 || pw != viewport.W-1 || ph != viewport.H-1)
if scissor {
gl.Enable(gl.SCISSOR_TEST)
gl.Scissor(p1x, p1y, pw, ph)
}
// omit rendering when portal is not in frustum at all
// calculation View matrix that shows the target portal from the same angle as view shows the source portal
//pos2 := portal.Target.Position
Model2 := portal.Target.Model()
// model matrix, so that portal 1 in camera 1 looks identical to portal 2 in camera
oldView := this.View
this.View = this.View.Mul4(Model).Mul4(Model2.Inv())
normal_os := portal.Target.Normal
normal_ws := Model.Mul4x1(normal_os)
view_dir := helpers.HomogenDiff(portal.Position, camera.Position)
sign := view_dir.Dot(normal_ws)
oldClippingPlane := this.ClippingPlane_ws
this.ClippingPlane_ws = portal.Target.ClippingPlane(sign > 0)
this.render(ww, options, viewport, recursion+1, nearestPortal)
this.ClippingPlane_ws = oldClippingPlane
this.View = oldView
gl.ActiveTexture(gl.TEXTURE0)
this.Framebuffer[recursion+1].RenderTexture.Bind(gl.TEXTURE_RECTANGLE)
if scissor {
//gl.Scissor(0, 0, w, h)
gl.Disable(gl.SCISSOR_TEST)
}
this.Framebuffer[recursion].Bind()
gl.Enable(gl.DEPTH_CLAMP)
additionalUniforms := map[string]int{"Image": 0}
this.PortalRenderer.Render(nearestPortal, this.Proj, this.View, this.ClippingPlane_ws, additionalUniforms)
}
}
}
func StartGame() {
window := initSDL()
context := initGL(window)
nvg := initNanovg()
ww, wh := window.GetSize()
gw := ww / 5
gh := wh / 5
life := NewLife(gw, gh)
refgrid := make([][]bool, gh)
for i := range refgrid {
refgrid[i] = make([]bool, gw)
}
// Run the game at 15fps. This gives us about 66ms to calculate
// and render everything. 30ms is not possible yet.
minms := uint32(1000 / 15)
running := true
gl.ClearColor(0.3, 0.3, 0.32, 1.0)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER_BIT)
// Draw all squares first.
tw, th := float32(life.w), float32(life.h)
for y := float32(0); y < th; y++ {
for x := float32(0); x < tw; x++ {
nvg.BeginPath()
nvg.Rect(x*5+1, y*5+1, 3, 3)
nvg.FillColor(nanovg.RGBA(100, 100, 100, 255))
nvg.Fill()
nvg.ClosePath()
}
}
// Loop!
for running {
lt := sdl.GetTicks()
for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
switch t := event.(type) {
case *sdl.QuitEvent:
running = false
case *sdl.KeyUpEvent:
if t.Keysym.Sym == sdl.K_ESCAPE {
running = false
}
}
}
life.Step()
ww, wh := window.GetSize()
gl.Viewport(0, 0, ww, wh)
nvg.BeginFrame(ww, wh, 1.0)
drawGrid(life, nvg, refgrid)
nvg.EndFrame()
if d := sdl.GetTicks() - lt; d < minms {
sdl.Delay(minms - d)
}
sdl.GL_SwapWindow(window)
}
// Cleanup.
window.Destroy()
sdl.GL_DeleteContext(context)
nvg.Close()
sdl.Quit()
}
// GetTime get the current time from the length that the application has been running.
func GetTime() float32 {
return float32(sdl.GetTicks()) / 1000.0
}
// setState sets the current states and does timer management
func (ps *PlayState) setState(state int) {
ps.state.state = state
ps.state.startTime = sdl.GetTicks()
}
// Get time in seconds. Time zero is platform specific.
func Now() float64 {
return float64(sdl.GetTicks()) * 0.001
}
func main() {
var window *sdl.Window
var renderer *sdl.Renderer
var event sdl.Event
var running bool
window = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED,
winWidth, winHeight, sdl.WINDOW_SHOWN)
if window == nil {
fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", sdl.GetError())
os.Exit(1)
}
renderer = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED)
if renderer == nil {
fmt.Fprintf(os.Stderr, "Failed to create renderer: %s\n", sdl.GetError())
os.Exit(2)
}
running = true
lastPushTime := sdl.GetTicks()
for running {
// Push a UserEvent every second
if lastPushTime+pushTime < sdl.GetTicks() {
lastPushTime = sdl.GetTicks()
pEvent := &sdl.UserEvent{sdl.USEREVENT, sdl.GetTicks(), window.GetID(), 1331, nil, nil}
retVal := sdl.PushEvent(pEvent) // Here's where the event is actually pushed
switch retVal {
case 1:
fmt.Println("PushEvent returned success")
case 0:
fmt.Println("PushEvent returned filtered")
case -1:
fmt.Printf("PushEvent returned error: %s\n", sdl.GetError)
}
}
for event = sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
switch t := event.(type) {
case *sdl.QuitEvent:
running = false
case *sdl.MouseMotionEvent:
fmt.Printf("[%d ms] MouseMotion\ttype:%d\tid:%d\tx:%d\ty:%d\txrel:%d\tyrel:%d\n",
t.Timestamp, t.Type, t.Which, t.X, t.Y, t.XRel, t.YRel)
case *sdl.MouseButtonEvent:
fmt.Printf("[%d ms] MouseButton\ttype:%d\tid:%d\tx:%d\ty:%d\tbutton:%d\tstate:%d\n",
t.Timestamp, t.Type, t.Which, t.X, t.Y, t.Button, t.State)
case *sdl.MouseWheelEvent:
fmt.Printf("[%d ms] MouseWheel\ttype:%d\tid:%d\tx:%d\ty:%d\n",
t.Timestamp, t.Type, t.Which, t.X, t.Y)
case *sdl.KeyUpEvent:
fmt.Printf("[%d ms] Keyboard\ttype:%d\tsym:%c\tmodifiers:%d\tstate:%d\trepeat:%d\n",
t.Timestamp, t.Type, t.Keysym.Sym, t.Keysym.Mod, t.State, t.Repeat)
case *sdl.UserEvent:
fmt.Printf("[%d ms] UserEvent\tcode:%d\n", t.Timestamp, t.Code)
}
}
sdl.Delay(1000 / 30)
}
renderer.Destroy()
window.Destroy()
}