Alexander Dölz / microbit_drop_game

Dependencies:   microbit

Files at this revision

API Documentation at this revision

Comitter:
novecento
Date:
Thu Jan 25 06:03:11 2018 +0000
Child:
1:89b525515734
Commit message:
First release

Changed in this revision

LICENSE.txt Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
microbit.lib Show annotated file Show diff for this revision Revisions of this file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LICENSE.txt	Thu Jan 25 06:03:11 2018 +0000
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Alexander Dölz
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jan 25 06:03:11 2018 +0000
@@ -0,0 +1,245 @@
+/*
+MIT License
+
+Copyright (c) 2018 Alexander Dölz
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+/*
+   micro:drop - A simple game for the BBC micro:bit
+
+   Fruits falling from the sky. Use buttons A & B to control the player
+   and catch them all.
+
+   Drop speed increases every 10 catches. How much can you get?
+   
+   After game over press AB to restart.
+*/
+#include "MicroBit.h"
+
+struct Sprite {
+    int     x;
+    int     y;
+};
+
+const MicroBitImage imageCross("255,0,0,0,255\n0,255,0,255,0\n0,0,255,0,0\n0,255,0,255,0\n255,0,0,0,255\n");
+const MicroBitImage imageFlash("255,255,255,255,255\n255,255,255,255,255\n255,255,255,255,255\n255,255,255,255,255\n255,255,255,255,255\n");
+
+MicroBit uBit;
+Sprite player;
+Sprite fruit;
+
+int game_over;
+int paused;
+int life;
+int score;
+int level;
+int game_speed;
+int high_score;
+int new_high_score;
+
+/* Move player sprite to the left */
+void onButtonA(MicroBitEvent e)
+{
+    if (player.x > 0 && !paused && !game_over) {
+        uBit.display.image.setPixelValue(player.x, player.y, 0);
+        player.x--;
+        uBit.display.image.setPixelValue(player.x, player.y, 255);
+    }
+}
+
+/* Move player sprite to the right */
+void onButtonB(MicroBitEvent e)
+{
+    if (player.x < 4 && !paused && !game_over) {
+        uBit.display.image.setPixelValue(player.x, player.y, 0);
+        player.x++;
+        uBit.display.image.setPixelValue(player.x, player.y, 255);
+    }
+}
+
+/* Move fruit down and check for missed fruits */
+void dropFruit()
+{
+    while(!game_over) {
+        if(!paused) {
+            uBit.display.image.setPixelValue(fruit.x, fruit.y, 0);
+            fruit.y++;
+            // When the fruit is moved below the screen, it's a miss
+            if (fruit.y > 4) {
+                // Create a new fruit
+                fruit.x=uBit.random(5);
+                fruit.y=0;
+
+                // Show a cross to indicate the miss
+                uBit.display.print(imageCross);
+                uBit.sleep(25);
+                uBit.display.clear();
+
+                // Reduce life
+                life--;
+
+                // No more lifes means game over
+                if (life == 0) game_over = true;
+            }
+            uBit.display.image.setPixelValue(fruit.x, fruit.y, 255);
+        }
+        // Wait some time to give the human a chance
+        uBit.sleep(game_speed);
+    }
+}
+
+/* Update player sprite and check for catched fruits*/
+void updatePlayer()
+{
+    while(!game_over) {
+        uBit.display.image.setPixelValue(player.x, player.y, 255);
+        // Check if the player catched the fruit
+        if (player.x==fruit.x && player.y==fruit.y) {
+            // Create a new fruit above the screen; dropFruit will do the rest
+            fruit.x=uBit.random(5);
+            fruit.y=-1;
+
+            // Flash all LEDs to indicate the catch
+            uBit.display.print(imageFlash);
+            uBit.sleep(25);
+            uBit.display.clear();
+
+            // Score a point
+            score++;
+
+            // Level and speed will be incressed every 10 points
+            if (score % 10 == 0) {
+                // Pause the game during the "Next Level" message
+                paused = true;
+                level++;
+                if (game_speed > 50) game_speed -= 50;
+                uBit.display.clear();
+                uBit.display.scroll("LEVEL:");
+                uBit.display.scroll(level);
+                // Bring Play back to the initial position
+                uBit.display.image.setPixelValue(player.x, player.y, 0);
+                player.x = 2;
+                uBit.display.image.setPixelValue(player.x, player.y, 255);
+                // Resume the game
+                paused = false;
+            }
+        }
+        // Give the CPU a rest
+        uBit.sleep(25);
+    }
+}
+/* Game over message */
+void gameOver()
+{
+    // Concatenate everthiny to ensure it will be in the right order at async
+    // output
+    const int cScore = score;
+    ManagedString msGameOver = ManagedString("GAME OVER! SCORE: ") +  ManagedString(cScore);
+    if (new_high_score) msGameOver = msGameOver + ManagedString(" NEW HIGH SCORE!");
+
+    uBit.display.scrollAsync(msGameOver);
+}
+
+/* The Game */
+void dropGame()
+{
+    // Show current high score
+    if (high_score > 0) {
+        uBit.display.scroll("HIGH SCORE:");
+        uBit.display.scroll(high_score);
+    }
+    uBit.display.scroll("LEVEL: 1");
+    
+    // Initialize player sprite
+    player.x=2;
+    player.y=4;
+    uBit.display.image.setPixelValue(player.x, player.y, 255);
+
+    // Initialize fruit sprite above the screen; dropFruit will do the rest
+    fruit.x=uBit.random(5);
+    fruit.y=-1;
+
+    // Reset game state
+    paused = false;
+    game_speed = 400;
+    level = 1;
+    score = 0;
+    life = 3;
+    new_high_score = false;
+    game_over = false;
+
+    //Create background tasks for player and fruit update
+    create_fiber(updatePlayer);
+    create_fiber(dropFruit);
+
+    // Game logik is in fibers updatePlayer and dropFruit
+    // So, while playing do nothing
+    while(!game_over)
+        uBit.sleep(200);
+
+    // Check for new high score
+    if (score > high_score) {
+        high_score = score;
+        // Maker it persistent
+        uBit.storage.put("high_score", (uint8_t *)&high_score, sizeof(int));
+        new_high_score = true;
+    }
+
+    // Show "Game Over" screen and score until A&B ist pressed together
+    uBit.display.clear();
+
+    while(!uBit.buttonAB.isPressed()) {
+        gameOver();
+        uBit.sleep(200);
+    }
+    uBit.display.stopAnimation();
+}
+
+int main(void)
+{
+    // Initialize the micro:bit runtime
+    uBit.init();
+
+    // Game titel
+    uBit.display.scroll("MICRO:DROP");
+
+    // Get current high score from storage
+    KeyValuePair* stroredHighScore = uBit.storage.get("high_score");
+    if(stroredHighScore  == NULL) {
+        high_score = 0; // Seems to be the first boot; there is no high score
+    } else {
+        // Copy high score from key value pair into int var
+        memcpy(&high_score, stroredHighScore->value, sizeof(int));
+        delete stroredHighScore;
+    }
+
+    //Disable buttons & background tasks at startup
+    game_over = true;
+
+    //Register functions to buttons A & B
+    uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_DOWN, onButtonA);
+    uBit.messageBus.listen(MICROBIT_ID_BUTTON_B, MICROBIT_BUTTON_EVT_DOWN, onButtonB);
+
+    // Play forever ;-)
+    while(1) {
+        dropGame();
+    }
+}
\ No newline at end of file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/microbit.lib	Thu Jan 25 06:03:11 2018 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/teams/Lancaster-University/code/microbit/#4b89e7e3494f