feat: magics

android/assets/sprites.svg

@@ -0,0 +1,142 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="210mm"
+   height="297mm"
+   viewBox="0 0 210 297"
+   version="1.1"
+   id="svg8"
+   inkscape:version="0.92.2 2405546, 2018-03-11"
+   sodipodi:docname="sprites.svg">
+  <defs
+     id="defs2" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="2.8"
+     inkscape:cx="243.58861"
+     inkscape:cy="441.09917"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:window-width="2880"
+     inkscape:window-height="1800"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="0">
+    <sodipodi:guide
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+       orientation="0,1"
+       id="guide5403"
+       inkscape:locked="false" />
+    <sodipodi:guide
+       position="51.404761,135.032"
+       orientation="0,1"
+       id="guide5405"
+       inkscape:locked="false" />
+  </sodipodi:namedview>
+  <metadata
+     id="metadata5">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <path
+       sodipodi:type="star"
+       style="opacity:1;fill:#ffe200;fill-opacity:1;stroke:#ffd200;stroke-width:0.81958076;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
+       id="star"
+       sodipodi:sides="5"
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+       inkscape:flatsided="false"
+       inkscape:rounded="0.14"
+       inkscape:randomized="0"
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+         r="4.7247024"
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+      <circle
+         r="6.5200891"
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+         cx="69.358627"
+         cy="95.633179" />
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+    <path
+       sodipodi:type="star"
+       style="opacity:1;fill:#8bfdff;fill-opacity:1;stroke:#00cef6;stroke-width:0.63437426;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
+       id="blue"
+       sodipodi:sides="3"
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+       sodipodi:cy="156.4604"
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+       inkscape:flatsided="true"
+       inkscape:rounded="0.14"
+       inkscape:randomized="0"
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+       inkscape:transform-center-y="-1.1369196"
+       inkscape:transform-center-x="1.0181805e-06"
+       inkscape:label="#path4530" />
+    <path
+       sodipodi:type="spiral"
+       style="fill:none;fill-rule:evenodd;stroke:#ff44d2;stroke-width:0.9322421;stroke-linecap:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       id="spiral"
+       sodipodi:cx="73.134727"
+       sodipodi:cy="155.36694"
+       sodipodi:expansion="1"
+       sodipodi:revolution="3"
+       sodipodi:radius="5.7798262"
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+       inkscape:label="#path4532" />
+    <path
+       inkscape:connector-curvature="0"
+       style="fill:#cd5151;stroke-width:0.6;fill-opacity:1;stroke:#902839;stroke-opacity:1;stroke-miterlimit:4;stroke-dasharray:none"
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+       id="skull"
+       inkscape:label="#path4766" />
+  </g>
+</svg>

core/build.gradle

@@ -1,6 +1,7 @@
 apply plugin: "java"
 
-sourceCompatibility = 1.6
+targetCompatibility = 1.8
+sourceCompatibility = 1.8
 [compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
 
 sourceSets.main.java.srcDirs = [ "src/" ]

core/src/com/mdibaiee/supersnake/Ball.java

@@ -1,28 +0,0 @@
-package com.mdibaiee.supersnake;
-
-
-import com.badlogic.gdx.graphics.Color;
-import com.badlogic.gdx.graphics.g2d.Batch;
-import com.badlogic.gdx.graphics.g2d.Sprite;
-
-import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
-import com.badlogic.gdx.physics.box2d.Shape;
-import com.badlogic.gdx.utils.Array;
-
-public class Ball extends Point {
-    private Color color = Colors.ball;
-
-    public int radius = 15;
-    public int size = radius * 2;
-
-    public Ball(float x, float y) {
-        super(x, y);
-    }
-
-    public void draw(ShapeRenderer shapeRenderer) {
-        shapeRenderer.begin(ShapeRenderer.ShapeType.Filled);
-        shapeRenderer.setColor(color);
-        shapeRenderer.circle(x, y, radius);
-        shapeRenderer.end();
-    }
-}

core/src/com/mdibaiee/supersnake/Colors.java

@@ -6,4 +6,5 @@ public class Colors {
     static public Color background = new Color(0.20f, 0.28f, 0.37f, 1);
     static public Color snake = new Color(0, 0.9f, 0.7f, 1);
     static public Color ball = new Color(1, 0.4f, 0, 1);
+    static public Color red = new Color(1, 0.34f, 0, 1);
 }

core/src/com/mdibaiee/supersnake/Magic.java

@@ -0,0 +1,75 @@
+package com.mdibaiee.supersnake;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
+
+public abstract class Magic extends SizedPoint {
+    SpriteBatch batch;
+    private Texture image;
+    public boolean active = false;
+    public int frames = 0;
+    public int drawn = 0;
+    public int lifetime = 20 * 60;
+
+    public int srcX = 0;
+    public int srcY = 0;
+
+    public int srcWidth = 0;
+    public int srcHeight = 0;
+
+    public float rotation = 0;
+    public float scale = 1;
+
+    private float drawn_width;
+    private float drawn_height;
+
+    public Magic(float x, float y, String image_url) {
+        super(x, y, 40);
+
+        image = new Texture(Gdx.files.internal(image_url));
+        batch = new SpriteBatch();
+
+        srcWidth = image.getWidth();
+        srcHeight = image.getHeight();
+        float ratio = (float) srcHeight / (float) srcWidth;
+
+        drawn_width = size;
+        drawn_height = size * ratio;
+        size = Math.max(size, size * ratio);
+    }
+
+    public boolean draw() {
+        drawn += 1;
+        float width = image.getWidth();
+        float height = image.getHeight();
+
+        batch.begin();
+
+        batch.draw(image, x, y,
+                   size / 2,  size / 2,
+                   drawn_width, drawn_height,
+                   scale, scale,
+                   rotation,
+                   srcX, srcY,
+                   srcWidth, srcHeight,
+                   false, false);
+
+        batch.end();
+
+        lifetime -= 1;
+
+        if (lifetime <= 0) {
+            return true;
+        }
+
+        return false;
+    }
+
+    abstract public void action(Snake snake);
+
+    // this method will be called after action at each iteration until it returns true
+    // when it does return true ,the object is disposed
+    abstract public boolean iter();
+}

core/src/com/mdibaiee/supersnake/Magics/Growth.java

@@ -0,0 +1,36 @@
+package com.mdibaiee.supersnake.Magics;
+
+import com.mdibaiee.supersnake.Magic;
+import com.mdibaiee.supersnake.Snake;
+
+public class Growth extends Magic {
+    private Snake snake;
+    private int seconds = 30;
+
+    public Growth(float x, float y) {
+        super(x, y, "blue.png");
+    }
+
+    public void action(Snake snake) {
+        this.snake = snake;
+        snake.size += 10;
+    }
+
+    public boolean draw() {
+        double cycle = Math.sin(((drawn * 6) % 360) * Math.PI / 360);
+        scale = (float) (1 + cycle * 0.3);
+
+        return super.draw();
+    }
+
+    public boolean iter() {
+        frames++;
+
+        if (frames > seconds * 60) {
+            snake.size -= 10;
+            return true;
+        }
+
+        return false;
+    }
+}

core/src/com/mdibaiee/supersnake/Magics/Skull.java

@@ -0,0 +1,30 @@
+package com.mdibaiee.supersnake.Magics;
+
+import com.mdibaiee.supersnake.Colors;
+import com.mdibaiee.supersnake.Magic;
+import com.mdibaiee.supersnake.Snake;
+
+public class Skull extends Magic {
+    private Snake snake;
+    private int seconds = 15;
+
+    public Skull(float x, float y) {
+        super(x, y, "skull.png");
+    }
+
+    public void action(Snake snake) {
+        this.snake = snake;
+        snake.color = Colors.red;
+    }
+
+    public boolean iter() {
+        frames++;
+
+        if (frames > seconds * 60) {
+            snake.color = Colors.snake;
+            return true;
+        }
+
+        return false;
+    }
+}

core/src/com/mdibaiee/supersnake/Magics/SpeedBoost.java

@@ -0,0 +1,44 @@
+package com.mdibaiee.supersnake.Magics;
+
+import com.mdibaiee.supersnake.Magic;
+import com.mdibaiee.supersnake.Snake;
+
+public class SpeedBoost extends Magic {
+    private Snake snake;
+    private int seconds = 30;
+
+    private float original_x;
+    private float original_y;
+
+    public SpeedBoost(float x, float y) {
+        super(x, y, "green.png");
+        original_x = x;
+        original_y = y;
+    }
+
+    public void action(Snake snake) {
+        this.snake = snake;
+        snake.speed += 5;
+    }
+
+    public boolean draw() {
+        double rx = Math.random() * 5;
+        double ry = Math.random() * 5;
+
+        x = (float) (original_x + rx);
+        y = (float) (original_y + ry);
+
+        return super.draw();
+    }
+
+    public boolean iter() {
+        frames++;
+
+        if (frames > seconds * 60) {
+            snake.speed -= 5;
+            return true;
+        }
+
+        return false;
+    }
+}

core/src/com/mdibaiee/supersnake/Magics/StarPoint.java

@@ -0,0 +1,27 @@
+package com.mdibaiee.supersnake.Magics;
+
+
+import com.badlogic.gdx.Gdx;
+import com.mdibaiee.supersnake.Magic;
+import com.mdibaiee.supersnake.Snake;
+
+public class StarPoint extends Magic {
+    public StarPoint(float x, float y) {
+        super(x, y, "star.png");
+    }
+
+    public boolean draw() {
+        rotation = drawn % 360;
+
+        return super.draw();
+    }
+
+    public void action(Snake snake) {
+        snake.point++;
+        snake.addTail();
+    }
+
+    public boolean iter() {
+        return true;
+    }
+}

core/src/com/mdibaiee/supersnake/Point.java

@@ -39,6 +39,6 @@ public class Point {
     }
 
     public double distance(Point p) {
-        return Math.sqrt(Math.pow(this.x - p.x, 2) + Math.pow(this.y - p.y, 2));
+        return Math.sqrt(Math.pow(x - p.x, 2) + Math.pow(y - p.y, 2));
     }
 }

core/src/com/mdibaiee/supersnake/SizedPoint.java

@@ -0,0 +1,27 @@
+package com.mdibaiee.supersnake;
+
+public class SizedPoint extends Point {
+    public float size;
+
+    public SizedPoint(float x, float y, float size) {
+        super(x, y);
+
+        this.size = size;
+    }
+
+    public float centerX() {
+        return x + size / 2;
+    }
+    public float centerY() {
+        return y + size / 2;
+    }
+
+    public double distance(SizedPoint other) {
+        return Math.sqrt(Math.pow(centerX() - other.centerX(), 2)
+                       + Math.pow(centerY() - other.centerY(), 2));
+    }
+
+    public boolean collides(SizedPoint other) {
+        return distance(other) < (size / 2 + other.size / 2);
+    }
+}

core/src/com/mdibaiee/supersnake/Snake.java

@@ -10,10 +10,10 @@ import com.badlogic.gdx.physics.box2d.Shape;
 import com.badlogic.gdx.utils.Array;
 
 class Tail extends DirectedPoint {
-    public int length;
+    public float length;
     public boolean breaking;
 
-    public Tail(float x, float y, Direction direction, int length) {
+    public Tail(float x, float y, Direction direction, float length) {
         super(x, y, direction);
         this.length = length;
     }
@@ -25,12 +25,13 @@ class Tail extends DirectedPoint {
 }
 
 public class Snake extends DirectedPoint {
-    private Color color = Colors.snake;
+    public Color color = Colors.snake;
     public int size = 10;
+    public int point = 0;
 
     private Array<Tail> tail = new Array<Tail>();
 
-    public int speed = 2;
+    public float speed = 2;
     public int lives = 3;
 
     public Snake(float x, float y, int length) {
@@ -82,26 +83,14 @@ public class Snake extends DirectedPoint {
         return 0;
     }
 
-    private Direction getNewDirection(DirectedPoint point, DirectedPoint last) {
-        if (point.direction == last.direction) return point.direction;
-
-        float expectedX = point.x + cx(last.direction) * size;
-        float expectedY = point.y + cy(last.direction) * size;
-
-        if (Math.abs(last.x - expectedX) <= speed &&
-            Math.abs(last.y - expectedY) <= speed) {
-            return last.direction;
-        }
-
-        return point.direction;
-    }
-
     public void move() {
         float ox = x;
         float oy = y;
         boolean cycled = this.move(x + cx(direction) * speed,
                                    y + cy(direction) * speed);
 
+        Gdx.app.log("Snake", "(" + ox + ", " + oy + ") > " + "(" + x + ", " + y + ")");
+
         if (cycled) {
             tail.insert(0, new Tail(ox, oy, direction, 0));
             tail.insert(0, new Tail(x, y, direction, true));
@@ -114,8 +103,10 @@ public class Snake extends DirectedPoint {
         last.move(last.x + cx(last.direction) * speed, last.y + cy(last.direction) * speed);
         last.length -= speed;
 
-        if (last.length <= 0) {
+        while (tail.peek().length <= 0) {
+            float diff = tail.peek().length;
             tail.removeIndex(tail.size - 1);
+            tail.peek().length += diff;
         }
     }
 
@@ -125,6 +116,11 @@ public class Snake extends DirectedPoint {
         last.x -= cx(last.direction) * 5;
         last.y -= cy(last.direction) * 5;
 
-        speed += 1;
+        speed += 0.5;
+    }
+
+    public boolean head_collision(SizedPoint p) {
+        SizedPoint s = new SizedPoint(x - size / 2, y - size / 2, size);
+        return s.collides(p);
     }
 }

core/src/com/mdibaiee/supersnake/SuperSnake.java

@@ -1,7 +1,5 @@
 package com.mdibaiee.supersnake;
-
+import com.mdibaiee.supersnake.Magics.*;
-import com.badlogic.gdx.graphics.OrthographicCamera;
-import com.mdibaiee.supersnake.Colors;
 
 import com.badlogic.gdx.ApplicationAdapter;
 import com.badlogic.gdx.Gdx;
@@ -9,7 +7,6 @@ import com.badlogic.gdx.graphics.GL20;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
 import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
-import com.badlogic.gdx.graphics.glutils.ShapeRenderer.ShapeType;
 import com.badlogic.gdx.graphics.g2d.BitmapFont;
 import com.badlogic.gdx.utils.Array;
 
@@ -17,15 +14,13 @@ public class SuperSnake extends ApplicationAdapter {
     public int WIDTH = 800;
     public int HEIGHT = 480;
 
-    int points = 0;
-
 	SpriteBatch batch;
     ShapeRenderer shapeRenderer;
 	Texture img;
     Snake snake;
     BitmapFont font;
 
-    private Array<Ball> balls = new Array<Ball>();
+    private Array<Magic> magics = new Array<Magic>();
 
 	@Override
 	public void create () {
@@ -35,6 +30,8 @@ public class SuperSnake extends ApplicationAdapter {
         WIDTH = Gdx.graphics.getBackBufferWidth();
         HEIGHT = Gdx.graphics.getBackBufferHeight();
 
+        Gdx.app.log("Snake", "VIEWPORT " + WIDTH + ", " + HEIGHT);
+
         shapeRenderer = new ShapeRenderer();
 
         snake = new Snake(WIDTH / 2, HEIGHT / 2, 50);
@@ -64,25 +61,53 @@ public class SuperSnake extends ApplicationAdapter {
             }
         }
 
-        if (balls.size < 1) {
+        int drawn_magics = 0;
-            balls.add(new Ball((float) Math.random() * WIDTH, (float) Math.random() * HEIGHT));
+
+        for (Magic m: magics) {
+            if (!m.active) drawn_magics++;
+        }
+
+        if (drawn_magics < 3) {
+            double r = Math.random() * 100;
+            float mx = (float) Math.random() * WIDTH;
+            float my = (float) Math.random() * HEIGHT;
+
+            Magic newMagic;
+            if (r < 70) {
+                newMagic = new StarPoint(mx, my);
+            } else if (r < 80) {
+                newMagic = new SpeedBoost(mx, my);
+            } else if (r < 90) {
+                newMagic = new Growth(mx, my);
+            } else {
+                newMagic = new Skull(mx, my);
+            }
+
+            newMagic = new SpeedBoost(mx, my);
+
+            magics.add(newMagic);
         }
 
         snake.draw(shapeRenderer);
         snake.move();
 
-        for(Ball b: balls) {
+        for(Magic m: magics) {
-            b.draw(shapeRenderer);
+            if (m.active) {
+                if (m.iter()) {
+                    magics.removeValue(m, true);
+                }
+            } else {
+                if (m.draw()) {
+                    magics.removeValue(m, true);
+                } else if (snake.head_collision(m)) {
+                    m.action(snake);
+                    m.active = true;
+                }
             }
-
-        if (snake.distance(balls.first()) < balls.first().size) {
-            balls.removeIndex(0);
-            points += 1;
-            snake.addTail();
         }
 
         batch.begin();
-        font.draw(batch, Integer.toString(points), 10, 25);
+        font.draw(batch, Integer.toString(snake.point), 10, 25);
         batch.end();
 	}