From 10d689d226d5d221e8c6bc34ce0e0af4ed5b73d6 Mon Sep 17 00:00:00 2001 From: mae Date: Wed, 25 Nov 2009 12:04:25 +0100 Subject: added a snake demo --- demos/declarative/snake/Button.qml | 25 +++ demos/declarative/snake/Cookie.qml | 48 +++++ demos/declarative/snake/HighScoreModel.qml | 100 +++++++++ demos/declarative/snake/Link.qml | 75 +++++++ demos/declarative/snake/Skull.qml | 21 ++ demos/declarative/snake/Snake.qml | 189 ++++++++++++++++ demos/declarative/snake/pics/README | 1 + demos/declarative/snake/pics/background.png | Bin 0 -> 144508 bytes demos/declarative/snake/pics/blueStar.png | Bin 0 -> 272 bytes demos/declarative/snake/pics/blueStone.png | Bin 0 -> 3139 bytes demos/declarative/snake/pics/cookie.png | Bin 0 -> 2729 bytes demos/declarative/snake/pics/eyes.svg | 118 ++++++++++ demos/declarative/snake/pics/head.png | Bin 0 -> 3473 bytes demos/declarative/snake/pics/head.svg | 134 ++++++++++++ demos/declarative/snake/pics/redStar.png | Bin 0 -> 273 bytes demos/declarative/snake/pics/redStone.png | Bin 0 -> 3456 bytes demos/declarative/snake/pics/skull.png | Bin 0 -> 2543 bytes demos/declarative/snake/pics/snake.jpg | Bin 0 -> 663901 bytes demos/declarative/snake/pics/star.png | Bin 0 -> 262 bytes demos/declarative/snake/pics/stoneShadow.png | Bin 0 -> 1699 bytes demos/declarative/snake/pics/yellowStone.png | Bin 0 -> 2667 bytes demos/declarative/snake/snake.js | 308 +++++++++++++++++++++++++++ 22 files changed, 1019 insertions(+) create mode 100644 demos/declarative/snake/Button.qml create mode 100644 demos/declarative/snake/Cookie.qml create mode 100644 demos/declarative/snake/HighScoreModel.qml create mode 100644 demos/declarative/snake/Link.qml create mode 100644 demos/declarative/snake/Skull.qml create mode 100644 demos/declarative/snake/Snake.qml create mode 100644 demos/declarative/snake/pics/README create mode 100644 demos/declarative/snake/pics/background.png create mode 100644 demos/declarative/snake/pics/blueStar.png create mode 100644 demos/declarative/snake/pics/blueStone.png create mode 100644 demos/declarative/snake/pics/cookie.png create mode 100644 demos/declarative/snake/pics/eyes.svg create mode 100644 demos/declarative/snake/pics/head.png create mode 100644 demos/declarative/snake/pics/head.svg create mode 100644 demos/declarative/snake/pics/redStar.png create mode 100644 demos/declarative/snake/pics/redStone.png create mode 100644 demos/declarative/snake/pics/skull.png create mode 100644 demos/declarative/snake/pics/snake.jpg create mode 100644 demos/declarative/snake/pics/star.png create mode 100644 demos/declarative/snake/pics/stoneShadow.png create mode 100644 demos/declarative/snake/pics/yellowStone.png create mode 100644 demos/declarative/snake/snake.js diff --git a/demos/declarative/snake/Button.qml b/demos/declarative/snake/Button.qml new file mode 100644 index 0000000..63cd555 --- /dev/null +++ b/demos/declarative/snake/Button.qml @@ -0,0 +1,25 @@ +import Qt 4.6 + +Rectangle { + id: container + + signal clicked + property string text: "Button" + + color: activePalette.button; smooth: true + width: txtItem.width + 20; height: txtItem.height + 6 + border.width: 1; border.color: Qt.darker(activePalette.button); radius: 8; + + gradient: Gradient { + GradientStop { + id: topGrad; position: 0.0 + color: if (mr.pressed) { activePalette.dark } else { activePalette.light } } + GradientStop { position: 1.0; color: activePalette.button } + } + + MouseRegion { id: mr; anchors.fill: parent; onClicked: container.clicked() } + + Text { + id: txtItem; text: container.text; anchors.centerIn: container; color: activePalette.buttonText + } +} diff --git a/demos/declarative/snake/Cookie.qml b/demos/declarative/snake/Cookie.qml new file mode 100644 index 0000000..d1577ca --- /dev/null +++ b/demos/declarative/snake/Cookie.qml @@ -0,0 +1,48 @@ +import Qt 4.6 + +Item { + id: root + property bool dying: false + property int row; + property int column; + x: margin + column * gridSize + y: margin + row * gridSize + + width: gridSize + height: gridSize + property int value : 1; + + Image { + id: img + anchors.fill: parent + source: "pics/cookie.png" + opacity: 0 + opacity: Behavior { NumberAnimation { duration: 100 } } + Text { + font.bold: true + anchors.verticalCenter: parent.verticalCenter + anchors.horizontalCenter: parent.horizontalCenter + text: value + } + } + + + Particles { id: particles + width:1; height:1; anchors.centerIn: parent; + emissionRate: 0; + lifeSpan: 700; lifeSpanDeviation: 600; + angle: 0; angleDeviation: 360; + velocity: 100; velocityDeviation:30; + source: "pics/greenStar.png"; + } + + states: [ + State{ name: "AliveState"; when: dying == false + PropertyChanges { target: img; opacity: 1 } + }, + State{ name: "DeathState"; when: dying == true + StateChangeScript { script: particles.burst(50); } + PropertyChanges { target: img; opacity: 0 } + } + ] +} diff --git a/demos/declarative/snake/HighScoreModel.qml b/demos/declarative/snake/HighScoreModel.qml new file mode 100644 index 0000000..f585ce8 --- /dev/null +++ b/demos/declarative/snake/HighScoreModel.qml @@ -0,0 +1,100 @@ +import Qt 4.6 + +// Models a high score table. +// +// Use this component like this: +// +// HighScoreModel { +// id: highScores +// game: "MyCoolGame" +// } +// +// Then use either use the top-score properties: +// +// Text { text: "HI: " + highScores.topScore } +// +// or, use the model in a view: +// +// ListView { +// model: highScore +// delegate: Component { +// ... player ... score ... +// } +// } +// +// Add new scores via: +// +// saveScore(newScore) +// +// or: +// +// savePlayerScore(playerName,newScore) +// +// The best maxScore scores added by this method will be retained in an SQL database, +// and presented in the model and in the topScore/topPlayer properties. +// + +ListModel { + id: model + property string game: "" + property int topScore: 0 + property string topPlayer: "" + property int maxScores: 10 + + Script { + function db() + { + return openDatabaseSync("HighScoreModel", "1.0", "Generic High Score Functionality for QML", 1000000); + } + function ensureTables(tx) + { + tx.executeSql('CREATE TABLE IF NOT EXISTS HighScores(game TEXT, score INT, player TEXT)', []); + } + } + + function fillModel() { + db().transaction( + function(tx) { + ensureTables(tx); + var rs = tx.executeSql("SELECT score,player FROM HighScores WHERE game=? ORDER BY score DESC", [game]); + model.clear(); + if (rs.rows.length > 0) { + topScore = rs.rows.item(0).score + topPlayer = rs.rows.item(0).player + for (var i=0; i maxScores) + tx.executeSql("DELETE FROM HighScores WHERE game=? AND score <= ?", + [rs.rows.item(maxScores).score]); + } + } + ) + } + + function savePlayerScore(player,score) { + db().transaction( + function(tx) { + ensureTables(tx); + tx.executeSql("INSERT INTO HighScores VALUES(?,?,?)", [game,score,player]); + fillModel(); + } + ) + } + + function saveScore(score) { + savePlayerScore("player",score); + } + + function clearScores() { + db().transaction( + function(tx) { + tx.executeSql("DELETE FROM HighScores WHERE game=?", [game]); + fillModel(); + } + ) + } + + Component.onCompleted: { fillModel() } +} diff --git a/demos/declarative/snake/Link.qml b/demos/declarative/snake/Link.qml new file mode 100644 index 0000000..1b3f7bf --- /dev/null +++ b/demos/declarative/snake/Link.qml @@ -0,0 +1,75 @@ +import Qt 4.6 + +Item { id:link + property bool dying: false + property bool spawned: false + property int type: 0 + property int row: 0 + property int column: 0 + property int rotation; + + width: 40; + height: 40 + + x: margin - 3 + gridSize * column + y: margin - 3 + gridSize * row + x: Behavior { NumberAnimation { duration: spawned ? heartbeatInterval : 0} } + y: Behavior { NumberAnimation { duration: spawned ? heartbeatInterval : 0 } } + + + Item { + id: img + anchors.fill: parent + Image { + source: { + if(type == 1) { + "pics/blueStone.png"; + } else if (type == 2) { + "pics/head.png"; + } else { + "pics/redStone.png"; + } + } + + transform: Rotation { + id: actualImageRotation + origin.x: width/2; origin.y: height/2; + angle: rotation * 90 + angle: Behavior{ NumberAnimation { duration: spawned ? 200 : 0} } + } + } + + Image { + source: "pics/stoneShadow.png" + } + + opacity: 0 + opacity: Behavior { NumberAnimation { duration: 200 } } + } + + + Particles { id: particles + width:1; height:1; anchors.centerIn: parent; + emissionRate: 0; + lifeSpan: 700; lifeSpanDeviation: 600; + angle: 0; angleDeviation: 360; + velocity: 100; velocityDeviation:30; + source: { + if(type == 1){ + "pics/blueStar.png"; + } else { + "pics/redStar.png"; + } + } + } + + states: [ + State{ name: "AliveState"; when: spawned == true && dying == false + PropertyChanges { target: img; opacity: 1 } + }, + State{ name: "DeathState"; when: dying == true + StateChangeScript { script: particles.burst(50); } + PropertyChanges { target: img; opacity: 0 } + } + ] +} diff --git a/demos/declarative/snake/Skull.qml b/demos/declarative/snake/Skull.qml new file mode 100644 index 0000000..585e7d3 --- /dev/null +++ b/demos/declarative/snake/Skull.qml @@ -0,0 +1,21 @@ +import Qt 4.6 + +Image { + property bool spawned: false + property int row; + property int column; + property int verticalMovement; + property int horizontalMovement; + + x: margin + column * gridSize + 2 + y: margin + row * gridSize - 3 + x: Behavior { NumberAnimation { duration: spawned ? halfbeatInterval : 0} } + y: Behavior { NumberAnimation { duration: spawned ? halfbeatInterval : 0 } } + + opacity: spawned ? 1 : 0 + opacity: Behavior { NumberAnimation { duration: 200 } } + + source: "pics/skull.png" + width: 24 + height: 40 +} diff --git a/demos/declarative/snake/Snake.qml b/demos/declarative/snake/Snake.qml new file mode 100644 index 0000000..a9835d4 --- /dev/null +++ b/demos/declarative/snake/Snake.qml @@ -0,0 +1,189 @@ +import Qt 4.6 + +Rectangle { + id: screen; + SystemPalette { id: activePalette } + color: activePalette.window + + Script { source: "snake.js" } + + property int gridSize : 34 + property int margin: 4 + property int numRowsAvailable: Math.floor((height-32-2*margin)/gridSize) + property int numColumnsAvailable: Math.floor((width-2*margin)/gridSize) + + property int lastScore : 0 + + property int score: 0; + property int heartbeatInterval: 200 + property int halfbeatInterval: 160 + + width: 480 + height: 750 + + property int direction + property int headDirection + + property var head; + + HighScoreModel { + id: highScores + game: "Snake" + } + + Timer { + id: heartbeat; + interval: heartbeatInterval; + repeat: true + onTriggered: { move() } + } + Timer { + id: halfbeat; + interval: halfbeatInterval; + repeat: true + running: heartbeat.running + onTriggered: { moveSkull() } + } + Timer { + id: startNewGameTimer; + interval: 700; + onTriggered: {startNewGame(); } + } + + Timer { + id: startHeartbeatTimer; + interval: 1000 ; + } + + + Image { + Image { + id: title + source: "pics/snake.jpg" + fillMode: "PreserveAspectCrop" + anchors.fill: parent + anchors.horizontalCenter: parent.horizontalCenter + anchors.verticalCenter: parent.verticalCenter + opacity: Behavior { NumberAnimation { duration: 500 } } + + Text { + color: "white" + font.pointSize: 24 + horizontalAlignment: "AlignHCenter" + text: "Last Score:\t" + lastScore + "\nHighscore:\t" + highScores.topScore; + anchors.horizontalCenter: parent.horizontalCenter + anchors.bottom: parent.bottom + anchors.bottomMargin: gridSize + } + } + + source: "pics/background.png" + fillMode: "PreserveAspectCrop" + + anchors.left: parent.left + anchors.right: parent.right + anchors.top: parent.top + anchors.bottom: toolbar.top + + Rectangle { + id: playfield + border.width: 1 + border.color: "white" + color: "transparent" + anchors.horizontalCenter: parent.horizontalCenter + y: (screen.height - 32 - height)/2; + width: numColumnsAvailable * gridSize + 2*margin + height: numRowsAvailable * gridSize + 2*margin + + + Skull { + id: skull + } + + MouseRegion { + anchors.fill: parent + onPressed: { + if (!head || !heartbeat.running) { + startNewGame(); + return; + } + if (direction == 0 || direction == 2) + scheduleDirection((mouseX > (head.x + head.width/2)) ? 1 : 3); + else + scheduleDirection((mouseY > (head.y + head.height/2)) ? 2 : 0); + } + } + } + + } + + Rectangle { + id: progressBar + opacity: 0 + opacity: Behavior { NumberAnimation { duration: 200 } } + color: "transparent" + border.width: 2 + border.color: "#221edd" + x: 50 + y: 50 + width: 200 + height: 30 + anchors.horizontalCenter: parent.horizontalCenter + anchors.verticalCenter: parent.verticalCenter + anchors.verticalCenterOffset: 40 + + Rectangle { + id: progressIndicator + color: "#221edd"; + width: 0; + width: Behavior { NumberAnimation { duration: startHeartbeatTimer.running ? 1000 : 0}} + height: 30; + } + } + + Rectangle { + id: toolbar + color: activePalette.window + height: 32; width: parent.width + anchors.bottom: screen.bottom + + Button { + id: btnA; text: "New Game"; onClicked: {startNewGame();} + anchors.left: parent.left; anchors.leftMargin: 3 + anchors.verticalCenter: parent.verticalCenter + } + + Text { + color: activePalette.text + text: "Score: " + score; font.bold: true + anchors.right: parent.right; anchors.rightMargin: 3 + anchors.verticalCenter: parent.verticalCenter + } + } + + focus: true + Keys.onSpacePressed: startNewGame(); + Keys.onLeftPressed: if (state == "starting" || direction != 1) scheduleDirection(3); + Keys.onRightPressed: if (state == "starting" || direction != 3) scheduleDirection(1); + Keys.onUpPressed: if (state == "starting" || direction != 2) scheduleDirection(0); + Keys.onDownPressed: if (state == "starting" || direction != 0) scheduleDirection(2); + + states: [ + State { + name: "starting" + when: startHeartbeatTimer.running; + PropertyChanges {target: progressIndicator; width: 200} + PropertyChanges {target: title; opacity: 0} + PropertyChanges {target: progressBar; opacity: 1} + }, + State { + name: "running" + when: heartbeat.running + PropertyChanges {target: progressIndicator; width: 200} + PropertyChanges {target: title; opacity: 0} + PropertyChanges {target: skull; row: 0; column: 0; } + PropertyChanges {target: skull; spawned: 1} + } + ] + +} diff --git a/demos/declarative/snake/pics/README b/demos/declarative/snake/pics/README new file mode 100644 index 0000000..0215132 --- /dev/null +++ b/demos/declarative/snake/pics/README @@ -0,0 +1 @@ +snake.jpg: This image is based on the picture "Eastern Green Mamba.jpg" from the free media databse Wikimedia Commons and is published under the terms of the GNU Free Documentation License. The original picture was taken by Danleo. diff --git a/demos/declarative/snake/pics/background.png b/demos/declarative/snake/pics/background.png new file mode 100644 index 0000000..72dffaa Binary files /dev/null and b/demos/declarative/snake/pics/background.png differ diff --git a/demos/declarative/snake/pics/blueStar.png b/demos/declarative/snake/pics/blueStar.png new file mode 100644 index 0000000..ba7acab Binary files /dev/null and b/demos/declarative/snake/pics/blueStar.png differ diff --git a/demos/declarative/snake/pics/blueStone.png b/demos/declarative/snake/pics/blueStone.png new file mode 100644 index 0000000..356affd Binary files /dev/null and b/demos/declarative/snake/pics/blueStone.png differ diff --git a/demos/declarative/snake/pics/cookie.png b/demos/declarative/snake/pics/cookie.png new file mode 100644 index 0000000..aec2957 Binary files /dev/null and b/demos/declarative/snake/pics/cookie.png differ diff --git a/demos/declarative/snake/pics/eyes.svg b/demos/declarative/snake/pics/eyes.svg new file mode 100644 index 0000000..1078692 --- /dev/null +++ b/demos/declarative/snake/pics/eyes.svg @@ -0,0 +1,118 @@ + + + + + + + image/svg+xml + + + + + + + + + + + + + + diff --git a/demos/declarative/snake/pics/head.png b/demos/declarative/snake/pics/head.png new file mode 100644 index 0000000..550e002 Binary files /dev/null and b/demos/declarative/snake/pics/head.png differ diff --git a/demos/declarative/snake/pics/head.svg b/demos/declarative/snake/pics/head.svg new file mode 100644 index 0000000..3bf0bd2 --- /dev/null +++ b/demos/declarative/snake/pics/head.svg @@ -0,0 +1,134 @@ + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + diff --git a/demos/declarative/snake/pics/redStar.png b/demos/declarative/snake/pics/redStar.png new file mode 100644 index 0000000..cd06854 Binary files /dev/null and b/demos/declarative/snake/pics/redStar.png differ diff --git a/demos/declarative/snake/pics/redStone.png b/demos/declarative/snake/pics/redStone.png new file mode 100644 index 0000000..9bb7fe4 Binary files /dev/null and b/demos/declarative/snake/pics/redStone.png differ diff --git a/demos/declarative/snake/pics/skull.png b/demos/declarative/snake/pics/skull.png new file mode 100644 index 0000000..6318616 Binary files /dev/null and b/demos/declarative/snake/pics/skull.png differ diff --git a/demos/declarative/snake/pics/snake.jpg b/demos/declarative/snake/pics/snake.jpg new file mode 100644 index 0000000..e91a784 Binary files /dev/null and b/demos/declarative/snake/pics/snake.jpg differ diff --git a/demos/declarative/snake/pics/star.png b/demos/declarative/snake/pics/star.png new file mode 100644 index 0000000..defbde5 Binary files /dev/null and b/demos/declarative/snake/pics/star.png differ diff --git a/demos/declarative/snake/pics/stoneShadow.png b/demos/declarative/snake/pics/stoneShadow.png new file mode 100644 index 0000000..1bd56af Binary files /dev/null and b/demos/declarative/snake/pics/stoneShadow.png differ diff --git a/demos/declarative/snake/pics/yellowStone.png b/demos/declarative/snake/pics/yellowStone.png new file mode 100644 index 0000000..c56124a Binary files /dev/null and b/demos/declarative/snake/pics/yellowStone.png differ diff --git a/demos/declarative/snake/snake.js b/demos/declarative/snake/snake.js new file mode 100644 index 0000000..1cea8b7 --- /dev/null +++ b/demos/declarative/snake/snake.js @@ -0,0 +1,308 @@ + +var snake = new Array; +var board = new Array; +var links = new Array; +var scheduledDirections = new Array; +var numRows = 1; +var numColumns = 1; +var linkComponent = createComponent("Link.qml"); +var cookieComponent = createComponent("Cookie.qml"); +var cookie; +var linksToGrow = 0; +var linksToDie = 0; +var waitForCookie = 0; +var growType = 0; +var skullMovementsBeforeDirectionChange = 0; + + +function rand(n) +{ + return (Math.floor(Math.random() * n)); +} + +function scheduleDirection(dir) +{ + direction = dir; + if(scheduledDirections[scheduledDirections.length-1]!=direction) + scheduledDirections.push(direction); +} + +function startNewGame() +{ + if (state == "starting") + return; + + if (heartbeat.running) { + endGame(); + startNewGameTimer.running = true; + return; + } + numRows = numRowsAvailable; + numColumns = numColumnsAvailable; + board = new Array(numRows * numColumns); + snake = new Array; + scheduledDirections = new Array; + growType = 0; + + skull.z = numRows * numColumns + 1; + + for (var i = 0; i < numRows * numColumns; ++i) { + if (i < links.length) { + var link = links[i]; + link.spawned = false; + link.dying = false; + } else { + if(linkComponent.isReady == false){ + if(linkComponent.isError == true) + print(linkComponent.errorString()); + else + print("Still loading linkComponent"); + continue;//TODO: Better error handling? + } + var link = linkComponent.createObject(); + link.parent = playfield; + link.z = numRows * numColumns + 1 - i; + link.type = i == 0 ? 2 : 0; + link.spawned = false; + link.dying = false; + links.push(link); + } + } + + head = links[0]; + snake.push(head); + head.row = numRows/2 -1; + head.column = numColumns/2 -1; + head.spawned = true; + + linksToGrow = 5; + linksToDie = 0; + waitForCookie = 5; + score = 0; + startHeartbeatTimer.running = true; + heartbeat.running = true; +} + +function endGame() +{ + heartbeat.running = false; + for(var i in snake) + snake[i].dying = true; + if (cookie) { + cookie.dying = true; + cookie = 0; + } + lastScore = score; + highScores.saveScore(lastScore); +} + +function move() { + + if (!head) + return; + + var dir = direction; + + if (scheduledDirections.length) { + dir = scheduledDirections.shift(); + } + + if (state == "starting") { + var turn = (dir - headDirection); + head.rotation += turn == -3 ? 1 : (turn == 3 ? -1 : turn ); + headDirection = dir; + return; + } + + var row = head.row; + var column = head.column; + + if (dir == 0) { + row = row - 1; + } else if (dir == 1) { + column = column + 1 + } else if (dir == 2) { + row = row + 1; + } else if (dir == 3) { + column = column - 1; + } + + //validate the new position + if (row < 0 || row >= numRows + || column < 0 || column >= numColumns + || (row == skull.row && column == skull.column) + || !isFree(row, column)) { + var turn = (dir - headDirection); + head.rotation += turn == -3 ? 1 : (turn == 3 ? -1 : turn ); + headDirection = dir; + endGame(); + return; + } + + var newLink; + if (linksToGrow > 0) { + --linksToGrow; + newLink = links[snake.length]; + newLink.spawned = false; + newLink.rotation = snake[snake.length-1].rotation; + newLink.type = growType; + newLink.dying = false; + snake.push(newLink); + } else { + var lastLink = snake[snake.length-1]; + board[lastLink.row * numColumns + lastLink.column] = Undefined; + } + + if (waitForCookie > 0) { + if (--waitForCookie == 0) + createCookie(cookie? (cookie.value+1) : 1); + } + + for (var i = snake.length-1; i > 0; --i) { + snake[i].row = snake[i-1].row; + snake[i].column = snake[i-1].column; + snake[i].rotation = snake[i-1].rotation; + } + + if (newLink) { + newLink.spawned = true; + } + + // move the head + head.row = row; + head.column = column; + board[row * numColumns + column] = head; + + var turn = (dir - headDirection); + head.rotation += turn == -3 ? 1 : (turn == 3 ? -1 : turn ); + headDirection = dir; + + var value = testCookie(row, column); + if (value > 0) { + linksToGrow += value; + score += value; + } +} + +function isFree(row, column) +{ + return board[row * numColumns + column] == Undefined; +} + +function isHead(row, column) +{ + return head.column == column && head.row == row; +} + +function testCookie(row, column) +{ + if (cookie && !cookie.dying && cookie.row == row && cookie.column == column) { + var value = cookie.value; + waitForCookie = value; + growType = snake[snake.length-1].type == 1 ? 0 : 1; + cookie.dying = true; + cookie.z = numRows * numColumns + 2; + return value; + } + return 0; +} + +function moveSkull() +{ + + if (linksToDie > 0) { + --linksToDie; + var link = snake.pop(); + link.dying = true; + board[link.row * numColumns + link.column] = Undefined; + if (score > 0) + --score; + if (snake.length == 0) { + endGame(); + return; + } + } + + var row = skull.row; + var column = skull.column; + if (isHead(row, column)) { + endGame(); + return; + } + row += skull.verticalMovement; + column += skull.horizontalMovement; + + var attempts = 4; + + while (skullMovementsBeforeDirectionChange == 0 || row < 0 || row >= numRows + || column < 0 || column >= numColumns + || (!isFree(row, column) && !isHead(row, column))) { + var d = rand(8); + skull.verticalMovement = 0; + skull.horizontalMovement = 0; + skullMovementsBeforeDirectionChange = rand(20)+1; + if (d == 0) { + skull.verticalMovement = -1 + } else if (d == 1) { + skull.horizontalMovement = -1; + } else if (d == 2) { + skull.verticalMovement = 1 + } else if (d == 3){ + skull.horizontalMovement = 1; + } else if (cookie) { + var rd = cookie.row - skull.row; + var rc = cookie.column - skull.column; + if (Math.abs(rd) > Math.abs(rc)) { + skull.verticalMovement = rd > 0 ? 1 : -1; + skullMovementsBeforeDirectionChange = Math.abs(rd); + } else { + skull.horizontalMovement= rc > 0 ? 1 : -1; + skullMovementsBeforeDirectionChange = Math.abs(rc); + } + } + row = skull.row + skull.verticalMovement; + column = skull.column + skull.horizontalMovement; + if (--attempts == 0) + return; + } + + skull.row = row; + skull.column = column; + --skullMovementsBeforeDirectionChange; + var value = testCookie(row, column); + if (value > 0) + linksToDie += value/2; + + if (isHead(row, column)) + endGame(); +} + +function createCookie(value) { + if (numRows * numColumns - snake.length < 10) + return; + + var column = rand(numColumns); + var row = rand(numRows); + while (!isFree(row, column)) { + column++; + if (column == numColumns) { + column = 0; + row++; + if (row == numRows) + row = 0; + } + } + + if(cookieComponent.isReady == false){ + if(cookieComponent.isError == true) + print(cookieComponent.errorString()); + else + print("Still loading cookieComponent"); + return;//TODO: Better error handling? + } + cookie = cookieComponent.createObject(); + cookie.parent = head.parent; + cookie.value = value; + cookie.row = row; + cookie.column = column; +} -- cgit v0.12