Added levels

screens/Tetris/GameLogic.js

@@ -4,6 +4,32 @@ import Tetromino from "./Tetromino";
 
 export default class GameLogic {
 
+    static levelTicks = {
+        '1': 1000,
+        '2': 900,
+        '3': 800,
+        '4': 700,
+        '5': 600,
+        '6': 500,
+        '7': 400,
+        '8': 300,
+        '9': 200,
+        '10': 150,
+    };
+
+    static levelThresholds = {
+        '1': 100,
+        '2': 300,
+        '3': 500,
+        '4': 700,
+        '5': 1000,
+        '7': 1500,
+        '8': 2000,
+        '9': 3000,
+        '10': 4000,
+        '11': 5000,
+    };
+
     currentGrid: Array<Array<Object>>;
 
     height: number;
@@ -13,6 +39,7 @@ export default class GameLogic {
     gamePaused: boolean;
     gameTime: number;
     score: number;
+    level: number;
 
     currentObject: Tetromino;
 
@@ -31,7 +58,6 @@ export default class GameLogic {
         this.width = width;
         this.gameRunning = false;
         this.gamePaused = false;
-        this.gameTick = 250;
         this.colors = colors;
     }
 
@@ -165,9 +191,21 @@ export default class GameLogic {
             this.currentObject.rotate(false);
     }
 
+    setNewGameTick(level: number) {
+        if (level > 10)
+            return;
+        this.gameTick = GameLogic.levelTicks[level];
+        clearInterval(this.gameTickInterval);
+        this.gameTickInterval = setInterval(this.onTick, this.gameTick);
+    }
+
     onTick(callback: Function) {
         this.tryMoveTetromino(0, 1);
-        callback(this.score, this.getFinalGrid());
+        callback(this.score, this.level, this.getFinalGrid());
+        if (this.level <= 10 && this.score > GameLogic.levelThresholds[this.level]) {
+            this.level++;
+            this.setNewGameTick(this.level);
+        }
     }
 
     onClock(callback: Function) {
@@ -248,9 +286,11 @@ export default class GameLogic {
         this.gamePaused = false;
         this.gameTime = 0;
         this.score = 0;
+        this.level = 1;
+        this.gameTick = GameLogic.levelTicks[this.level];
         this.currentGrid = this.getEmptyGrid();
         this.createTetromino();
-        tickCallback(this.score, this.getFinalGrid());
+        tickCallback(this.score, this.level, this.getFinalGrid());
         clockCallback(this.gameTime);
         this.onTick = this.onTick.bind(this, tickCallback);
         this.onClock = this.onClock.bind(this, clockCallback);

screens/Tetris/TetrisScreen.js

@@ -16,7 +16,8 @@ type State = {
     grid: Array<Array<Object>>,
     gameRunning: boolean,
     gameTime: number,
-    gameScore: number
+    gameScore: number,
+    gameLevel: number,
 }
 
 class TetrisScreen extends React.Component<Props, State> {
@@ -39,6 +40,7 @@ class TetrisScreen extends React.Component<Props, State> {
             gameRunning: false,
             gameTime: 0,
             gameScore: 0,
+            gameLevel: 0,
         };
         this.onTick = this.onTick.bind(this);
         this.onClock = this.onClock.bind(this);
@@ -83,9 +85,10 @@ class TetrisScreen extends React.Component<Props, State> {
             this.showPausePopup();
     }
 
-    onTick(score: number, newGrid: Array<Array<Object>>) {
+    onTick(score: number, level: number, newGrid: Array<Array<Object>>) {
         this.setState({
             gameScore: score,
+            gameLevel: level,
             grid: newGrid,
         });
     }
@@ -141,6 +144,7 @@ class TetrisScreen extends React.Component<Props, State> {
 
     showGameOverConfirm() {
         let message = 'SCORE: ' + this.state.gameScore + '\n';
+        message += 'LEVEL: ' + this.state.gameLevel + '\n';
         message += 'TIME: ' + this.state.gameTime + '\n';
         Alert.alert(
             'GAME OVER',
@@ -191,6 +195,20 @@ class TetrisScreen extends React.Component<Props, State> {
                         color: this.colors.subtitle
                     }}>{this.state.gameTime}</Text>
                 </View>
+                <View style={{
+                    flexDirection: 'row',
+                    position: 'absolute',
+                    top: 50,
+                    left: 10,
+                }}>
+                    <MaterialCommunityIcons
+                        name={'gamepad'}
+                        color={this.colors.text}
+                        size={20}/>
+                    <Text style={{
+                        marginLeft: 5
+                    }}>{this.state.gameLevel}</Text>
+                </View>
                 <View style={{
                     flexDirection: 'row',
                     marginRight: 'auto',