doodle/pkg/play_scene.go

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2018-06-21 02:00:46 +00:00
package doodle
import (
"fmt"
"time"
"git.kirsle.net/apps/doodle/pkg/balance"
"git.kirsle.net/apps/doodle/pkg/collision"
"git.kirsle.net/apps/doodle/pkg/doodads"
"git.kirsle.net/apps/doodle/pkg/gamepad"
"git.kirsle.net/apps/doodle/pkg/keybind"
"git.kirsle.net/apps/doodle/pkg/level"
"git.kirsle.net/apps/doodle/pkg/levelpack"
"git.kirsle.net/apps/doodle/pkg/log"
"git.kirsle.net/apps/doodle/pkg/modal"
"git.kirsle.net/apps/doodle/pkg/modal/loadscreen"
"git.kirsle.net/apps/doodle/pkg/physics"
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"git.kirsle.net/apps/doodle/pkg/savegame"
"git.kirsle.net/apps/doodle/pkg/scripting"
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"git.kirsle.net/apps/doodle/pkg/sprites"
"git.kirsle.net/apps/doodle/pkg/uix"
"git.kirsle.net/go/render"
"git.kirsle.net/go/render/event"
"git.kirsle.net/go/ui"
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)
// PlayScene manages the "Edit Level" game mode.
type PlayScene struct {
// Configuration attributes.
Filename string
Level *level.Level
CanEdit bool // i.e. you came from the Editor Mode
HasNext bool // has a next level to load next
RememberScrollPosition render.Point // for the Editor quality of life
SpawnPoint render.Point // if not zero, overrides Start Flag
// If this level was part of a levelpack. The Play Scene will read it
// from the levelpack ZIP file in priority over any other location.
LevelPack *levelpack.LevelPack
// Private variables.
d *Doodle
drawing *uix.Canvas
scripting *scripting.Supervisor
running bool
deathBarrier int // Y position of death barrier in case of falling OOB.
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// Score variables.
startTime time.Time // wallclock time when level begins
perfectRun bool // set false on first respawn
cheated bool // user has entered a cheat code while playing
// UI widgets.
supervisor *ui.Supervisor
screen *ui.Frame // A window sized invisible frame to position UI elements.
menubar *ui.MenuBar
editButton *ui.Button
winLevelPacks *ui.Window
// Custom debug labels.
debPosition *string
debViewport *string
debScroll *string
debWorldIndex *string
debLoadUnload *string
// Player character
Player *uix.Actor
playerPhysics *physics.Mover
lastCheckpoint render.Point
playerLastDirection float64 // player's heading last tick
antigravity bool // Cheat: disable player gravity
noclip bool // Cheat: disable player clipping
godMode bool // Cheat: player can't die
godModeUntil time.Time // Invulnerability timer at respawn.
playerJumpCounter int // limit jump length
// Inventory HUD. Impl. in play_inventory.go
invenFrame *ui.Frame
invenItems []string // item list
invenDoodads map[string]*uix.Canvas
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// Elapsed Time frame.
timerFrame *ui.Frame
timerPerfectImage *ui.Image
timerImperfectImage *ui.Image
timerLabel *ui.Label
// Touchscreen controls state.
isTouching bool
playerIsIdle bool // LoopTouchable watches for inactivity on input controls.
idleLastStart time.Time
idleHelpAlpha int // fade in UI hints
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}
// Name of the scene.
func (s *PlayScene) Name() string {
return "Play"
}
// Setup the play scene.
func (s *PlayScene) Setup(d *Doodle) error {
Wallpapers and Bounded Levels Implement the Wallpaper system into the levels and the concept of Bounded and Unbounded levels. The first wallpaper image is notepad.png which looks like standard ruled notebook paper. On bounded levels, the top/left edges of the page look as you would expect and the blue lines tile indefinitely in the positive directions. On unbounded levels, you only get the repeating blue lines but not the edge pieces. A wallpaper is just a rectangular image file. The image is divided into four equal quadrants to be the Corner, Top, Left and Repeat textures for the wallpaper. The Repeat texture is ALWAYS used and fills all the empty space behind the drawing. (Doodads draw with blank canvases as before because only levels have wallpapers!) Levels have four options of a "Page Type": - Unbounded (default, infinite space) - NoNegativeSpace (has a top left edge but can grow infinitely) - Bounded (has a top left edge and bounded size) - Bordered (bounded with bordered texture; NOT IMPLEMENTED!) The scrollable viewport of a Canvas will respect the wallpaper and page type settings of a Level loaded into it. That is, if the level has a top left edge (not Unbounded) you can NOT scroll to see negative coordinates below (0,0) -- and if the level has a max dimension set, you can't scroll to see pixels outside those dimensions. The Canvas property NoLimitScroll=true will override the scroll locking and let you see outside the bounds, for debugging. - Default map settings for New Level are now: - Page Type: NoNegativeSpace - Wallpaper: notepad.png (default) - MaxWidth: 2550 (8.5" * 300 ppi) - MaxHeight: 3300 ( 11" * 300 ppi)
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s.d = d
s.scripting = scripting.NewSupervisor()
s.supervisor = ui.NewSupervisor()
// Show the loading screen.
loadscreen.ShowWithProgress()
go func() {
if err := s.setupAsync(d); err != nil {
log.Error("PlayScene.setupAsync: %s", err)
return
}
loadscreen.Hide()
}()
return nil
}
// setupAsync initializes the play screen in the background, underneath
// a Loading screen.
func (s *PlayScene) setupAsync(d *Doodle) error {
// Create an invisible 'screen' frame for UI elements to use for positioning.
s.screen = ui.NewFrame("Screen")
s.screen.Resize(render.NewRect(d.width, d.height))
// Menu Bar
s.menubar = s.setupMenuBar(d)
s.screen.Pack(s.menubar, ui.Pack{
Side: ui.N,
FillX: true,
})
// Level Exit handler.
s.scripting.OnLevelExit(s.BeatLevel)
s.scripting.OnLevelFail(s.FailLevel)
s.scripting.OnSetCheckpoint(s.SetCheckpoint)
// Initialize debug overlay values.
s.debPosition = new(string)
s.debViewport = new(string)
s.debScroll = new(string)
s.debWorldIndex = new(string)
s.debLoadUnload = new(string)
customDebugLabels = []debugLabel{
{"Pixel:", s.debWorldIndex},
{"Player:", s.debPosition},
{"Viewport:", s.debViewport},
{"Scroll:", s.debScroll},
{"Chunks:", s.debLoadUnload},
}
// Initialize the "Edit Map" button.
s.editButton = ui.NewButton("Edit", ui.NewLabel(ui.Label{
Text: "Edit (E)",
Font: balance.PlayButtonFont,
}))
s.editButton.Handle(ui.Click, func(ed ui.EventData) error {
s.EditLevel()
return nil
})
s.supervisor.Add(s.editButton)
// Set up the inventory HUD.
s.setupInventoryHud()
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// Set up the elapsed time frame.
{
s.timerFrame = ui.NewFrame("Elapsed Timer")
// Set the gold and silver images.
gold, _ := sprites.LoadImage(s.d.Engine, balance.GoldCoin)
silver, _ := sprites.LoadImage(s.d.Engine, balance.SilverCoin)
s.timerPerfectImage = gold
s.timerImperfectImage = silver
s.timerLabel = ui.NewLabel(ui.Label{
Text: "00:00",
Font: balance.TimerFont,
})
if s.timerPerfectImage != nil {
s.timerFrame.Pack(s.timerPerfectImage, ui.Pack{
Side: ui.W,
PadX: 2,
})
}
if s.timerImperfectImage != nil {
s.timerFrame.Pack(s.timerImperfectImage, ui.Pack{
Side: ui.W,
PadX: 2,
})
s.timerImperfectImage.Hide()
}
s.timerFrame.Pack(s.timerLabel, ui.Pack{
Side: ui.W,
PadX: 2,
})
s.screen.Place(s.timerFrame, ui.Place{
Top: 40,
Left: 40,
})
}
// Initialize the drawing canvas.
s.drawing = uix.NewCanvas(balance.ChunkSize, false)
s.drawing.Name = "play-canvas"
s.drawing.MoveTo(render.Origin)
s.drawing.Resize(render.NewRect(d.width, d.height))
s.drawing.Compute(d.Engine)
// Handler when an actor touches water or fire.
s.drawing.OnLevelCollision = func(a *uix.Actor, col *collision.Collide) {
Various updates New doodad interactions: * Sticky Buttons will emit a "sticky:down" event to linked doodads, with a boolean value showing the Sticky Button's state. * Normal Buttons will listen for "sticky:down" -- when a linked Sticky Button is pressed, the normal Button presses in as well, and stays pressed while the sticky:down signal is true. * When the Sticky Button is released (e.g. because it received power from another doodad), any linked buttons which were sticky:down release as well. * Switch doodads emit a new "switch:toggle" event JUST BEFORE sending the "power" event. Sensitive Doodads can listen for switches in particular this way. * The Electric Door listens for switch:toggle; if a Switch is activated, the Electric Door always flips its current state (open to close, or vice versa) and ignores the immediately following power event. This allows doors to toggle on/off regardless of sync with a Switch. Other changes: * When the player character dies by fire, instead of the message saying "Watch out for fire!" it will use the name of the fire swatch that hurt the player. This way levels could make it say "Watch out for spikes!" or "lava" or whatever they want. The "Fire" attribute now just means "instantly kills the player." * Level Editor: You can now edit the Title and Author name of your level in the Page Settings window. * Bugfix: only the player character ends the game by dying in fire. Other mobile doodads just turn dark but don't end the game. * Increase the size of Trapdoor doodad sprites by 150% as they were a bit small for the player character. * Rename the game from "Project: Doodle" to "Sketchy Maze"
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if col.InFire != "" {
a.Canvas.MaskColor = render.Black
Various updates New doodad interactions: * Sticky Buttons will emit a "sticky:down" event to linked doodads, with a boolean value showing the Sticky Button's state. * Normal Buttons will listen for "sticky:down" -- when a linked Sticky Button is pressed, the normal Button presses in as well, and stays pressed while the sticky:down signal is true. * When the Sticky Button is released (e.g. because it received power from another doodad), any linked buttons which were sticky:down release as well. * Switch doodads emit a new "switch:toggle" event JUST BEFORE sending the "power" event. Sensitive Doodads can listen for switches in particular this way. * The Electric Door listens for switch:toggle; if a Switch is activated, the Electric Door always flips its current state (open to close, or vice versa) and ignores the immediately following power event. This allows doors to toggle on/off regardless of sync with a Switch. Other changes: * When the player character dies by fire, instead of the message saying "Watch out for fire!" it will use the name of the fire swatch that hurt the player. This way levels could make it say "Watch out for spikes!" or "lava" or whatever they want. The "Fire" attribute now just means "instantly kills the player." * Level Editor: You can now edit the Title and Author name of your level in the Page Settings window. * Bugfix: only the player character ends the game by dying in fire. Other mobile doodads just turn dark but don't end the game. * Increase the size of Trapdoor doodad sprites by 150% as they were a bit small for the player character. * Rename the game from "Project: Doodle" to "Sketchy Maze"
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if a.ID() == "PLAYER" { // only the player dies in fire.
s.DieByFire(col.InFire)
}
} else if col.InWater {
a.Canvas.MaskColor = render.DarkBlue
} else {
a.Canvas.MaskColor = render.Invisible
}
}
// Handle a doodad changing the player character.
s.drawing.OnSetPlayerCharacter = s.SetPlayerCharacter
s.drawing.OnResetTimer = s.ResetTimer
// Given a filename or map data to play?
if s.Level != nil {
log.Debug("PlayScene.Setup: received level from scene caller")
s.drawing.LoadLevel(s.Level)
s.drawing.InstallActors(s.Level.Actors)
} else if s.Filename != "" {
loadscreen.SetSubtitle("Opening: " + s.Filename)
log.Debug("PlayScene.Setup: loading map from file %s", s.Filename)
// NOTE: s.LoadLevel also calls s.drawing.InstallActors
s.LoadLevel(s.Filename)
}
if s.Level == nil {
log.Debug("PlayScene.Setup: no grid given, initializing empty grid")
s.Level = level.New()
s.drawing.LoadLevel(s.Level)
s.drawing.InstallActors(s.Level.Actors)
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}
// Choose a death barrier in case the user falls off the map,
// so they don't fall forever.
worldSize := s.Level.Chunker.WorldSize()
s.deathBarrier = worldSize.H + 1000
log.Debug("Death barrier at %d", s.deathBarrier)
// Set the loading screen text with the level metadata.
loadscreen.SetSubtitle(
s.Level.Title,
"by "+s.Level.Author,
)
// Load all actor scripts.
s.drawing.SetScriptSupervisor(s.scripting)
if err := s.scripting.InstallScripts(s.Level); err != nil {
log.Error("PlayScene.Setup: failed to InstallScripts: %s", err)
}
// Load in the player character.
s.setupPlayer(balance.PlayerCharacterDoodad)
if s.CanEdit {
d.Flash("Entered Play Mode. Press 'E' to edit this map.")
} else {
d.FlashError("%s", s.Level.Title)
}
// Pre-cache all bitmap images from the level chunks.
// Note: we are not running on the main thread, so SDL2 Textures
// don't get created yet, but we do the full work of caching bitmap
// images which later get fed directly into SDL2 saving speed at
// runtime, + the bitmap generation is pretty wicked fast anyway.
loadscreen.PreloadAllChunkBitmaps(s.Level.Chunker)
// Gamepad: put into GameplayMode.
gamepad.SetMode(gamepad.GameplayMode)
// Run all the actor scripts' main() functions.
if err := s.drawing.InstallScripts(); err != nil {
log.Error("PlayScene.Setup: failed to drawing.InstallScripts: %s", err)
}
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s.startTime = time.Now()
s.perfectRun = true
s.running = true
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return nil
}
// SetPlayerCharacter changes the doodad used for the player, by destroying the
// current player character and making it from scratch.
func (s *PlayScene) SetPlayerCharacter(filename string) {
// Record the player position and size and back up their inventory.
var (
spawn = s.Player.Position()
inventory = s.Player.Inventory()
)
// TODO: to account for different height players, the position ought to be
// adjusted so the player doesn't clip and fall thru the floor.
spawn.Y -= 20 // work-around
s.Player.Destroy()
s.drawing.RemoveActor(s.Player)
log.Info("SetPlayerCharacter: %s", filename)
s.installPlayerDoodad(filename, spawn, render.Rect{})
if err := s.drawing.InstallScripts(); err != nil {
log.Error("SetPlayerCharacter: InstallScripts: %s", err)
}
// Restore their inventory.
for item, qty := range inventory {
s.Player.AddItem(item, qty)
}
}
// ResetTimer sets the level elapsed timer back to zero.
func (s *PlayScene) ResetTimer() {
s.startTime = time.Now()
}
// setupPlayer creates and configures the Player Character in the level.
func (s *PlayScene) setupPlayer(playerCharacterFilename string) {
// Find the spawn point of the player. Search the level for the
// "start-flag.doodad"
var (
isStartFlagCharacter bool
spawn render.Point
centerIn render.Rect
flag = &level.Actor{}
flagSize = render.NewRect(86, 86) // TODO: start-flag.doodad is 86x86 px
flagCount int
)
for actorID, actor := range s.Level.Actors {
if actor.Filename == "start-flag.doodad" {
// Support alternative player characters: if the Start Flag is linked
// to another actor, that actor becomes the player character.
for _, linkID := range actor.Links {
if linkedActor, ok := s.Level.Actors[linkID]; ok {
playerCharacterFilename = linkedActor.Filename
isStartFlagCharacter = true
log.Info("Playing as: %s", playerCharacterFilename)
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break
}
}
// TODO: start-flag.doodad is 86x86 pixels but we can't tell that
// from right here.
log.Info("Found start-flag.doodad at %s (ID %s)", actor.Point, actorID)
flag = actor
flagCount++
break
}
}
// If the user is cheating for the player character, mark the
// session cheated already. e.g. "Play as Bird" cheat would let
// them just fly to the goal in levels that don't link their
// Start Flag to a specific character.
if !isStartFlagCharacter && !balance.IsPlayerCharacterDefault() {
log.Warn("Mark session as cheated: the player spawned as %s instead of default", playerCharacterFilename)
s.SetCheated()
}
// The Start Flag becomes the player's initial checkpoint.
s.lastCheckpoint = flag.Point
if !s.SpawnPoint.IsZero() {
spawn = s.SpawnPoint
} else {
spawn = flag.Point
centerIn = render.Rect{
W: flagSize.W,
H: flagSize.H,
}
}
// Surface warnings around the spawn flag.
if flagCount == 0 {
s.d.FlashError("Warning: this level contained no Start Flag.")
} else if flagCount > 1 {
s.d.FlashError("Warning: this level contains multiple Start Flags. Player spawn point is ambiguous.")
}
s.installPlayerDoodad(playerCharacterFilename, spawn, centerIn)
}
// Load and install the player doodad onto the level.
// Make sure the previous PLAYER was removed.
// If spawn is zero, uses the player's last spawn point.
// centerIn is optional, ignored if zero.
func (s *PlayScene) installPlayerDoodad(filename string, spawn render.Point, centerIn render.Rect) {
// Load in the player character.
player, err := doodads.LoadFile(filename)
if err != nil {
log.Error("PlayScene.Setup: failed to load player doodad: %s", err)
player = doodads.NewDummy(32)
}
// Center the player within the box of the doodad, for the Start Flag especially.
if !centerIn.IsZero() {
spawn = render.NewPoint(
spawn.X+(centerIn.W/2)-(player.Layers[0].Chunker.Size/2),
// Y: the bottom of the flag, 4 pixels from the floor.
spawn.Y+centerIn.H-4-(player.Layers[0].Chunker.Size),
)
} else if spawn.IsZero() && !s.SpawnPoint.IsZero() {
spawn = s.SpawnPoint
}
s.Player = uix.NewActor("PLAYER", &level.Actor{}, player)
s.Player.SetInventory(true) // player always can pick up items
s.Player.MoveTo(spawn)
s.drawing.AddActor(s.Player)
s.drawing.FollowActor = s.Player.ID()
// Set up the movement physics for the player.
s.playerPhysics = &physics.Mover{
MaxSpeed: physics.NewVector(balance.PlayerMaxVelocity, balance.PlayerMaxVelocity),
// Gravity: physics.NewVector(balance.Gravity, balance.Gravity),
Acceleration: 0.025,
Friction: 0.1,
}
// Set up the player character's script in the VM.
if err := s.scripting.AddLevelScript(s.Player.ID(), s.Player.Actor.Filename); err != nil {
log.Error("PlayScene.Setup: scripting.InstallActor(player) failed: %s", err)
}
}
// EditLevel toggles out of Play Mode to edit the level.
func (s *PlayScene) EditLevel() {
log.Info("Edit Mode, Go!")
// If they didn't come from the Level Editor originally, e.g. they are in Story Mode,
// confirm they want the editor in case they accidentally hit the "E" key due to
// its proximity to the WASD keys.
if !s.CanEdit {
modal.Confirm("Open this level in the editor?").Then(s.doEditLevel)
} else {
s.doEditLevel()
}
}
// Common logic to transition into the Editor.
func (s *PlayScene) doEditLevel() {
gamepad.SetMode(gamepad.MouseMode)
s.d.Goto(&EditorScene{
Filename: s.Filename,
Level: s.Level,
RememberScrollPosition: s.RememberScrollPosition,
})
}
// RestartLevel starts the level over again.
func (s *PlayScene) RestartLevel() {
log.Info("Restart Level")
s.d.Goto(&PlayScene{
LevelPack: s.LevelPack,
Filename: s.Filename,
Level: s.Level,
CanEdit: s.CanEdit,
})
}
// SetCheckpoint sets the player's checkpoint.
func (s *PlayScene) SetCheckpoint(where render.Point) {
s.lastCheckpoint = where
}
// RetryCheckpoint moves the player back to their last checkpoint.
func (s *PlayScene) RetryCheckpoint() {
// Grant the player invulnerability for 5 seconds
s.godModeUntil = time.Now().Add(balance.RespawnGodModeTimer)
log.Info("Move player back to last checkpoint")
s.Player.MoveTo(s.lastCheckpoint)
s.running = true
}
// BeatLevel handles the level success condition.
func (s *PlayScene) BeatLevel() {
s.d.Flash("Hurray!")
s.ShowEndLevelModal(
true,
"Level Completed",
"Congratulations on clearing the level!",
)
}
/*
FailLevel handles a level failure triggered by a doodad or fire pixel.
If the Survival GameRule is set, this ends the level with a note on how long the
player had survived for and they get a silver rating.
*/
func (s *PlayScene) FailLevel(message string) {
if s.Player.Invulnerable() || s.godMode || s.godModeUntil.After(time.Now()) {
return
}
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s.SetImperfect()
s.d.FlashError(message)
if s.Level.GameRule.Survival {
s.ShowEndLevelModal(
true,
"Level Completed",
fmt.Sprintf(
"%s\nCongrats on surviving for %s!",
message,
savegame.FormatDuration(time.Since(s.startTime)),
),
)
return
}
s.ShowEndLevelModal(
false,
"You've died!",
message,
)
}
Various updates New doodad interactions: * Sticky Buttons will emit a "sticky:down" event to linked doodads, with a boolean value showing the Sticky Button's state. * Normal Buttons will listen for "sticky:down" -- when a linked Sticky Button is pressed, the normal Button presses in as well, and stays pressed while the sticky:down signal is true. * When the Sticky Button is released (e.g. because it received power from another doodad), any linked buttons which were sticky:down release as well. * Switch doodads emit a new "switch:toggle" event JUST BEFORE sending the "power" event. Sensitive Doodads can listen for switches in particular this way. * The Electric Door listens for switch:toggle; if a Switch is activated, the Electric Door always flips its current state (open to close, or vice versa) and ignores the immediately following power event. This allows doors to toggle on/off regardless of sync with a Switch. Other changes: * When the player character dies by fire, instead of the message saying "Watch out for fire!" it will use the name of the fire swatch that hurt the player. This way levels could make it say "Watch out for spikes!" or "lava" or whatever they want. The "Fire" attribute now just means "instantly kills the player." * Level Editor: You can now edit the Title and Author name of your level in the Page Settings window. * Bugfix: only the player character ends the game by dying in fire. Other mobile doodads just turn dark but don't end the game. * Increase the size of Trapdoor doodad sprites by 150% as they were a bit small for the player character. * Rename the game from "Project: Doodle" to "Sketchy Maze"
2021-03-31 06:33:25 +00:00
// DieByFire ends the level by "fire", or w/e the swatch is named.
func (s *PlayScene) DieByFire(name string) {
s.FailLevel(fmt.Sprintf("Watch out for %s!", name))
}
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// SetImperfect sets the perfectRun flag to false and changes the icon for the timer.
func (s *PlayScene) SetImperfect() {
if s.cheated {
return
}
s.perfectRun = false
if s.timerPerfectImage != nil {
s.timerPerfectImage.Hide()
}
if s.timerImperfectImage != nil {
s.timerImperfectImage.Show()
}
}
// SetCheated marks the level as having been cheated. The developer shell will call
// this if the user enters a cheat code during gameplay.
func (s *PlayScene) SetCheated() {
s.cheated = true
s.perfectRun = false
// Hide both timer icons.
if s.timerPerfectImage != nil {
s.timerPerfectImage.Hide()
}
if s.timerImperfectImage != nil {
s.timerImperfectImage.Hide()
}
}
// ShowEndLevelModal centralizes the EndLevel modal config.
// This is the common handler function between easy methods such as
// BeatLevel, FailLevel, and DieByFire.
func (s *PlayScene) ShowEndLevelModal(success bool, title, message string) {
config := modal.ConfigEndLevel{
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Engine: s.d.Engine,
Success: success,
OnRestartLevel: s.RestartLevel,
OnRetryCheckpoint: s.RetryCheckpoint,
OnExitToMenu: func() {
gamepad.SetMode(gamepad.MouseMode)
s.d.Goto(&MainScene{})
},
}
if s.CanEdit {
config.OnEditLevel = s.EditLevel
}
// Beaten the level?
if success {
config.OnRetryCheckpoint = nil
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// Are we in a levelpack?
if s.LevelPack != nil {
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// Update the savegame to mark the level completed.
save, err := savegame.GetOrCreate()
if err != nil {
log.Warn("Load savegame file: %s", err)
}
log.Info("Mark level '%s' from pack '%s' as completed", s.Filename, s.LevelPack.Filename)
if !s.cheated {
elapsed := time.Since(s.startTime)
highscore := save.NewHighScore(s.LevelPack.Filename, s.Filename, s.perfectRun, elapsed, s.Level.GameRule)
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if highscore {
s.d.Flash("New record!")
config.NewRecord = true
config.IsPerfect = s.perfectRun
config.TimeElapsed = elapsed
}
} else {
// Player has cheated! Mark the level completed but grant no high score.
save.MarkCompleted(s.LevelPack.Filename, s.Filename)
}
// Save the player's scores file.
if err = save.Save(); err != nil {
log.Error("Couldn't save game: %s", err)
}
// Show the "Next Level" button if there is a sequel to this level.
for i, level := range s.LevelPack.Levels {
i := i
level := level
if level.Filename == s.Filename && i < len(s.LevelPack.Levels)-1 {
// Show "Next" button!
config.OnNextLevel = func() {
nextLevel := s.LevelPack.Levels[i+1]
log.Info("Advance to next level: %s", nextLevel.Filename)
s.d.PlayFromLevelpack(*s.LevelPack, nextLevel)
}
}
}
}
}
// Show the modal.
modal.EndLevel(config, title, message)
// Stop the simulation.
s.running = false
}
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// Loop the editor scene.
func (s *PlayScene) Loop(d *Doodle, ev *event.State) error {
// Skip if still loading.
if loadscreen.IsActive() {
return nil
}
// Inform the gamepad controller whether we have antigravity controls.
gamepad.PlayModeAntigravity = s.antigravity || !s.Player.HasGravity()
// Update debug overlay values.
*s.debWorldIndex = s.drawing.WorldIndexAt(render.NewPoint(ev.CursorX, ev.CursorY)).String()
*s.debPosition = s.Player.Position().String() + " vel " + s.Player.Velocity().String()
*s.debViewport = s.drawing.Viewport().String()
*s.debScroll = s.drawing.Scroll.String()
inside, outside := s.drawing.LoadUnloadMetrics()
*s.debLoadUnload = fmt.Sprintf("%d in %d out", inside, outside)
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// Update the timer.
s.timerLabel.Text = savegame.FormatDuration(time.Since(s.startTime))
s.supervisor.Loop(ev)
// Has the window been resized?
if ev.WindowResized {
s.drawing.Resize(render.NewRect(d.width, d.height))
s.screen.Resize(render.NewRect(d.width, d.height))
return nil
}
// Switching to Edit Mode?
if keybind.GotoEdit(ev) {
s.EditLevel()
return nil
}
// Is the simulation still running?
if s.running {
// Loop the script supervisor so timeouts/intervals can fire in scripts.
if err := s.scripting.Loop(); err != nil {
log.Error("PlayScene.Loop: scripting.Loop: %s", err)
}
// Touch regions.
s.LoopTouchable(ev)
s.movePlayer(ev)
if err := s.drawing.Loop(ev); err != nil {
log.Error("Drawing loop error: %s", err.Error())
}
// Check if the player hit the death barrier.
if s.Player.Position().Y > s.deathBarrier {
// The player must die to avoid the softlock of falling forever.
s.godMode = false
s.Player.SetInvulnerable(false)
s.DieByFire("falling off the map")
}
// Update the inventory HUD.
s.computeInventory()
}
return nil
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}
// Draw the pixels on this frame.
func (s *PlayScene) Draw(d *Doodle) error {
// Skip if still loading.
if loadscreen.IsActive() {
return nil
}
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// Clear the canvas and fill it with white.
d.Engine.Clear(render.White)
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// Draw the level.
s.drawing.Present(d.Engine, s.drawing.Point())
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// Draw out bounding boxes.
if DebugCollision {
for _, actor := range s.drawing.Actors() {
d.DrawCollisionBox(s.drawing, actor)
}
}
// Draw the UI screen and any widgets that attached to it.
s.screen.Compute(d.Engine)
s.screen.Present(d.Engine, render.Origin)
// Draw the Edit button.
var (
canSize = s.drawing.Size()
size = s.editButton.Size()
padding = 8
)
s.editButton.MoveTo(render.Point{
X: canSize.W - size.W - padding,
Y: canSize.H - size.H - padding,
})
s.editButton.Present(d.Engine, s.editButton.Point())
// Visualize the touch regions?
s.DrawTouchable()
// Let Supervisor draw menus
s.supervisor.Present(d.Engine)
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return nil
}
// movePlayer updates the player's X,Y coordinate based on key pressed.
func (s *PlayScene) movePlayer(ev *event.State) {
var (
playerSpeed = float64(balance.PlayerMaxVelocity)
velocity = s.Player.Velocity()
direction float64
jumping bool
)
// Antigravity: player can move anywhere with arrow keys.
Thief and Inventory APIs This commit adds the Thief character with starter graphics (no animations). The Thief walks back and forth and will steal items from other doodads, including the player. For singleton items that have no quantity, like the Colored Keys, the Thief will only steal one if he does not already have it. Quantitied items like the Small Key are always stolen. Flexibility in the playable character is introduced: Boy, Azulian, Bird, and Thief all respond to playable controls. There is not currently a method to enable these apart from modifying balance.PlayerCharacterDoodad at compile time. New and Changed Doodads * Thief: new doodad that walks back and forth and will steal items from other characters inventory. * Bird: has no inventory and cannot pick up items, unless player controlled. Its hitbox has also been fixed so it collides with floors correctly - not something normally seen in the Bird. * Boy: opts in to have inventory. * Keys (all): only gives themselves to actors having inventories. JavaScript API - New functions available * Self.IsPlayer() - returns if the current actor IS the player. * Self.SetInventory(bool) - doodads must opt-in to having an inventory. Keys should only give themselves to doodads having an inventory. * Self.HasInventory() bool * Self.AddItem(filename, qty) * Self.RemoveItem(filename, qty) * Self.HasItem(filename) * Self.Inventory() - returns map[string]int * Self.ClearInventory() * Self.OnLeave(func(e)) now receives a CollideEvent as parameter instead of the useless actor ID. Notably, e.Actor is the leaving actor and e.Settled is always true. Other Changes * Play Mode: if playing as a character which doesn't obey gravity, such as the bird, antigravity controls are enabled by default. If you `import antigravity` you can turn gravity back on. * Doodad collision scripts are no longer run in parallel goroutines. It made the Thief's job difficult trying to steal items in many threads simultaneously!
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if s.antigravity || !s.Player.HasGravity() {
velocity.X = 0
velocity.Y = 0
// Shift to slow your roll to 1 pixel per tick.
if keybind.Shift(ev) {
playerSpeed = 1
}
if keybind.Left(ev) {
velocity.X = -playerSpeed
} else if keybind.Right(ev) {
velocity.X = playerSpeed
}
if keybind.Up(ev) {
velocity.Y = -playerSpeed
} else if keybind.Down(ev) {
velocity.Y = playerSpeed
}
} else {
// Moving left or right.
if keybind.Left(ev) {
direction = -1
} else if keybind.Right(ev) {
direction = 1
}
// Up button to signal they want to jump.
if keybind.Up(ev) {
if s.Player.Grounded() {
velocity.Y = balance.PlayerJumpVelocity
}
} else if velocity.Y < 0 {
velocity.Y = 0
}
// if keybind.Up(ev) && (s.Player.Grounded() || s.playerJumpCounter >= 0) {
// jumping = true
// if s.Player.Grounded() {
// // Allow them to sustain the jump this many ticks.
// s.playerJumpCounter = 32
// }
// }
// Moving left or right? Interpolate their velocity by acceleration.
if direction != 0 {
if s.playerLastDirection != direction {
velocity.X = 0
}
// TODO: fast turn-around if they change directions so they don't
// slip and slide while their velocity updates.
velocity.X = physics.Lerp(
velocity.X,
direction*s.playerPhysics.MaxSpeed.X,
s.playerPhysics.Acceleration,
)
} else {
// Slow them back to zero using friction.
velocity.X = physics.Lerp(
velocity.X,
0,
s.playerPhysics.Friction,
)
}
// Moving upwards (jumping): give them full acceleration upwards.
if jumping {
velocity.Y = -playerSpeed
}
// While in the air, count down their jump counter; when zero they
// cannot jump again until they touch ground.
if !s.Player.Grounded() {
s.playerJumpCounter--
}
}
s.playerLastDirection = direction
// Move the player unless frozen.
// TODO: if Y=0 then gravity fails, but not doing this allows the
// player to jump while frozen. Not a HUGE deal right now as only Warp Doors
// freeze the player currently but do address this later.
if s.Player.IsFrozen() {
velocity.X = 0
}
s.Player.SetVelocity(velocity)
// If the "Use" key is pressed, set an actor flag on the player.
s.Player.SetUsing(keybind.Use(ev))
s.scripting.To(s.Player.ID()).Events.RunKeypress(keybind.FromEvent(ev))
}
// Drawing returns the private world drawing, for debugging with the console.
func (s *PlayScene) Drawing() *uix.Canvas {
return s.drawing
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}
// LoadLevel loads a level from disk.
//
// If the PlayScene was called with a LevelPack, it will check there
// first before the usual locations.
//
// The usual locations are: embedded bindata, ./assets folder on disk,
// and user content finally.
func (s *PlayScene) LoadLevel(filename string) error {
s.Filename = filename
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var (
lvl *level.Level
err error
)
// Are we playing out of a levelpack?
if s.LevelPack != nil {
levelbin, err := s.LevelPack.GetData("levels/" + filename)
if err != nil {
log.Error("Error reading levels/%s from zip: %s", filename, err)
}
lvl, err = level.FromJSON(filename, levelbin)
if err != nil {
log.Error("PlayScene.LoadLevel(%s) from zipfile: %s", filename, err)
}
log.Info("PlayScene.LoadLevel: found %s in LevelPack zip data", filename)
}
// Try the usual suspects.
if lvl == nil {
log.Info("PlayScene.LoadLevel: trying the usual places")
lvl, err = level.LoadFile(filename)
if err != nil {
return fmt.Errorf("PlayScene.LoadLevel(%s): %s", filename, err)
}
}
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s.Level = lvl
s.drawing.LoadLevel(s.Level)
s.drawing.InstallActors(s.Level.Actors)
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return nil
}
// Destroy the scene.
func (s *PlayScene) Destroy() error {
Optimize memory by freeing up SDL2 textures * Added to the F3 Debug Overlay is a "Texture:" label that counts the number of textures currently loaded by the (SDL2) render engine. * Added Teardown() functions to Level, Doodad and the Chunker they both use to free up SDL2 textures for all their cached graphics. * The Canvas.Destroy() function now cleans up all textures that the Canvas is responsible for: calling the Teardown() of the Level or Doodad, calling Destroy() on all level actors, and cleaning up Wallpaper textures. * The Destroy() method of the game's various Scenes will properly Destroy() their canvases to clean up when transitioning to another scene. The MainScene, MenuScene, EditorScene and PlayScene. * Fix the sprites package to actually cache the ui.Image widgets. The game has very few sprites so no need to free them just yet. Some tricky places that were leaking textures have been cleaned up: * Canvas.InstallActors() destroys the canvases of existing actors before it reinitializes the list and installs the replacements. * The DraggableActor when the user is dragging an actor around their level cleans up the blueprint masked drag/drop actor before nulling it out. Misc changes: * The player character cheats during Play Mode will immediately swap out the player character on the current level. * Properly call the Close() function instead of Hide() to dismiss popup windows. The Close() function itself calls Hide() but also triggers WindowClose event handlers. The Doodad Dropper subscribes to its close event to free textures for all its doodad canvases.
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// Free SDL2 textures. Note: if they are switching to the Editor, the chunks still have
// their bitmaps cached and will regen the textures as needed.
s.drawing.Destroy()
// Free inventory doodad textures.
for _, can := range s.invenDoodads {
log.Info("Destroy inventory doodad: %s", can)
can.Destroy()
}
return nil
}