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constants.go
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constants.go
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package main
import "errors"
// General game constants
const (
framerate = 30
ballDiam = 1
platformWidth = 1
platformHeight = 6
padding = 10
letterWidth = 8
letterHeight = 7
letterGap = 1
initialDelaySecs = 2
scoreSleepSecs = 2
startMenuLttrGap = 8
ballRandomness = 20
playerP1 = "p1"
playerP2 = "p2"
)
type GameState string
// Game states
const (
gameStateStarting GameState = "starting"
gameStateMainMenu GameState = "mainMenu"
gameStateInGame GameState = "inGame"
gameStatePaused GameState = "paused"
gameStateHardPaused GameState = "hardPaused"
gameStateEnding GameState = "ending" // to break the game loop
gameStateEnded GameState = "ended" // when game.End is called
)
// Key states
const (
keyStateNormal = "stateNormal"
keyStateClick = "stateClick"
keyStateRelease = "stateRelease"
keyStateHold = "stateHold"
keyStateEnd = "stateHoldEnd"
)
// StatedEvent states
const (
eventStatePulse = "pulse"
eventStateStarting = "starting"
eventStateEnding = "ending"
)
// Screens
const (
screenStartMenu = "screenMainMenu"
screenGame = "screenGame"
)
// Errors
var NoKeyboardError = errors.New("no keyboard detected")
// Game events
var (
eventP1Up = NewEvent("eventP1Up", "Move Player1 Up")
eventP1Down = NewEvent("eventP1Down", "Move Player1 Down")
eventP2Up = NewEvent("eventP2Up", "Move Player2 Up")
eventP2Down = NewEvent("eventP2Down", "Move Player2 Down")
eventMenuUp = NewEvent("eventMenuUp", "Select Action Above")
eventMenuDown = NewEvent("eventMenuDown", "Select Action Below")
eventMenuSelect = NewEvent("eventMenuSelect", "Select Menu Action")
eventTogglePause = NewEvent("eventTogglePause", "Toggle Pause")
eventStart = NewEvent("eventStart", "Start Game")
eventDestroy = NewEvent("eventDestroy", "Quit")
eventReset = NewEvent("eventReset", "Reset Round")
eventSwitchTheme = NewEvent("eventSwitchTheme", "Switch Theme")
eventToggleBg = NewEvent("eventToggleBg", "Toggle Background Visibility")
eventToggleAI = NewEvent("eventToggleAI", "Toggle AI")
)
// Keys which can be triggered when game is started
var keysStart = KeyEventMap{
*NewKeyEvent(NewKey("SPACE", keyStateClick), eventStart),
*NewKeyEvent(NewKey("ENTER", keyStateClick), eventMenuSelect),
*NewKeyEvent(NewKey("Up", keyStateNormal), eventMenuUp),
*NewKeyEvent(NewKey("Down", keyStateNormal), eventMenuDown),
*NewKeyEvent(NewKey("Q", keyStateClick), eventDestroy),
*NewKeyEvent(NewKey("P", keyStateClick), eventTogglePause),
*NewKeyEvent(NewKey("R", keyStateClick), eventReset),
*NewKeyEvent(NewKey("T", keyStateClick), eventSwitchTheme),
*NewKeyEvent(NewKey("A", keyStateClick), eventToggleAI),
}
// Keys which can be triggered when game is started
var keysGame = KeyEventMap{
*NewKeyEvent(NewKey("W", keyStateHold), eventP1Up),
*NewKeyEvent(NewKey("S", keyStateHold), eventP1Down),
*NewKeyEvent(NewKey("Up", keyStateHold), eventP2Up),
*NewKeyEvent(NewKey("Down", keyStateHold), eventP2Down),
*NewKeyEvent(NewKey("Q", keyStateClick), eventDestroy),
*NewKeyEvent(NewKey("P", keyStateClick), eventTogglePause),
*NewKeyEvent(NewKey("R", keyStateClick), eventReset),
*NewKeyEvent(NewKey("T", keyStateClick), eventSwitchTheme),
}
var keysPause = KeyEventMap{
*NewKeyEvent(NewKey("W", keyStateHold), eventP1Up),
*NewKeyEvent(NewKey("S", keyStateHold), eventP1Down),
*NewKeyEvent(NewKey("ENTER", keyStateClick), eventMenuSelect),
*NewKeyEvent(NewKey("Up", keyStateNormal), eventMenuUp),
*NewKeyEvent(NewKey("Down", keyStateNormal), eventMenuDown),
*NewKeyEvent(NewKey("Q", keyStateClick), eventDestroy),
*NewKeyEvent(NewKey("P", keyStateClick), eventTogglePause),
*NewKeyEvent(NewKey("R", keyStateClick), eventReset),
*NewKeyEvent(NewKey("T", keyStateClick), eventSwitchTheme),
}
var legendKeysStart = KeyEventMap{
*NewKeyEvent(NewKey("SPACE", keyStateClick), eventStart),
*NewKeyEvent(NewKey("Q", keyStateClick), eventDestroy),
*NewKeyEvent(NewKey("P", keyStateClick), eventTogglePause),
*NewKeyEvent(NewKey("R", keyStateClick), eventReset),
*NewKeyEvent(NewKey("A", keyStateClick), eventToggleAI),
*NewKeyEvent(NewKey("T", keyStateClick), eventSwitchTheme),
*NewKeyEvent(NewKey("W", keyStateHold), eventP1Up),
*NewKeyEvent(NewKey("S", keyStateHold), eventP1Down),
*NewKeyEvent(NewKey("Up", keyStateHold), eventP2Up),
*NewKeyEvent(NewKey("Down", keyStateHold), eventP2Down),
}
var legendKeysPaused = KeyEventMap{
*NewKeyEvent(NewKey("Q", keyStateClick), eventDestroy),
*NewKeyEvent(NewKey("P", keyStateClick), eventTogglePause),
*NewKeyEvent(NewKey("R", keyStateClick), eventReset),
*NewKeyEvent(NewKey("T", keyStateClick), eventSwitchTheme),
*NewKeyEvent(NewKey("W", keyStateHold), eventP1Up),
*NewKeyEvent(NewKey("S", keyStateHold), eventP1Down),
*NewKeyEvent(NewKey("Up", keyStateHold), eventP2Up),
*NewKeyEvent(NewKey("Down", keyStateHold), eventP2Down),
}
var screenData = map[GameState]GameInfo{
gameStateMainMenu: {keysStart, legendKeysStart, "middle"},
gameStateInGame: {keysGame, nil, ""},
gameStatePaused: {keysPause, legendKeysPaused, "left"},
}