Physics done, jumping WIP.

.gitignore

@@ -62,3 +62,4 @@ build/
 
 ## OS Specific
 .DS_Store
+/.nb-gradle/private/

core/src/com/saltosion/gladiator/GladiatorBrawler.java

@@ -3,7 +3,6 @@ package com.saltosion.gladiator;
 import com.badlogic.ashley.core.Engine;
 import com.badlogic.ashley.core.Entity;
 import com.badlogic.ashley.core.EntityListener;
-import com.badlogic.ashley.core.Family;
 import com.badlogic.gdx.ApplicationAdapter;
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.graphics.g2d.Sprite;
@@ -11,8 +10,10 @@ import com.badlogic.gdx.math.Vector2;
 import com.saltosion.gladiator.components.CPhysics;
 import com.saltosion.gladiator.components.CRenderedObject;
 import com.saltosion.gladiator.input.InputHandler;
+import com.saltosion.gladiator.systems.PhysicsSystem;
 import com.saltosion.gladiator.systems.RenderingSystem;
 import com.saltosion.gladiator.util.AppUtil;
+import com.saltosion.gladiator.util.Global;
 import com.saltosion.gladiator.util.Name;
 import com.saltosion.gladiator.util.SpriteLoader;
 import com.saltosion.gladiator.util.SpriteSequence;
@@ -22,21 +23,31 @@ public class GladiatorBrawler extends ApplicationAdapter {
     private Engine engine;
     private InputHandler inputHandler;
 
-	private float physics_accumulator = 0f;
-	
     private Entity player;
 
     @Override
     public void create() {
 
         // Initialize the Engine
-		
         engine = new Engine();
 
-		engine.addSystem(new RenderingSystem());
+        engine.addSystem(new PhysicsSystem());
+        engine.addEntityListener(new EntityListener() {
+            @Override
+            public void entityAdded(Entity entity) {
+                PhysicsSystem ps = engine.getSystem(PhysicsSystem.class);
+                ps.updateEntities(engine);
+            }
 
-		engine.addEntityListener(Family.getFor(), 
+            @Override
-				new EntityListener() {
+            public void entityRemoved(Entity entity) {
+                PhysicsSystem ps = engine.getSystem(PhysicsSystem.class);
+                ps.updateEntities(engine);
+            }
+        });
+
+        engine.addSystem(new RenderingSystem());
+        engine.addEntityListener(new EntityListener() {
             @Override
             public void entityRemoved(Entity entity) {
                 RenderingSystem rs = engine.getSystem(RenderingSystem.class);
@@ -47,17 +58,14 @@ public class GladiatorBrawler extends ApplicationAdapter {
             public void entityAdded(Entity entity) {
                 RenderingSystem rs = engine.getSystem(RenderingSystem.class);
                 rs.updateEntities(engine);
-						
             }
         });
 
-		
         // Initialize stuff in the world
-		
         initializePlayer();
+        initializeLevel();
 
         // Initialize input
-		
         inputHandler = new InputHandler();
         Gdx.input.setInputProcessor(inputHandler);
     }
@@ -78,13 +86,50 @@ public class GladiatorBrawler extends ApplicationAdapter {
         renderedObject.addSequence("Idle", sequence);
         renderedObject.playAnimation("Idle");
         player.add(renderedObject);
-		player.add(new CPhysics());
+        player.add(new CPhysics().setSize(player1.getRegionWidth() * Global.SPRITE_SCALE, player1.getRegionHeight() * Global.SPRITE_SCALE));
 
         engine.addEntity(player);
 
         AppUtil.player = player;
     }
 
+    public void initializeLevel() {
+        Entity ground = new Entity();
+
+        Sprite groundSprite = SpriteLoader.loadSprite(Name.GROUNDIMG, 0, 0, 256, 64);
+        CRenderedObject renderedObject = new CRenderedObject(groundSprite);
+        ground.add(renderedObject);
+        CPhysics physics = new CPhysics().setMovable(false).setGravityApplied(false)
+                .setSize(groundSprite.getRegionWidth() * Global.SPRITE_SCALE,
+                        groundSprite.getRegionHeight() * Global.SPRITE_SCALE);
+        physics.position.set(new Vector2(-2.5f, -5));
+        ground.add(physics);
+
+        Sprite wallSprite = SpriteLoader.loadSprite(Name.WALLIMG, 0, 0, 64, 64);
+
+        Entity wall0 = new Entity();
+        CRenderedObject wall0RenderedObject = new CRenderedObject(wallSprite);
+        CPhysics wall0Physics = new CPhysics().setMovable(false).setGravityApplied(false)
+                .setSize(wallSprite.getRegionWidth() * Global.SPRITE_SCALE,
+                        wallSprite.getRegionHeight() * Global.SPRITE_SCALE);
+        wall0Physics.position.set(new Vector2(5, 0));
+        wall0.add(wall0RenderedObject);
+        wall0.add(wall0Physics);
+
+        Entity wall1 = new Entity();
+        CRenderedObject wall1RenderedObject = new CRenderedObject(wallSprite);
+        CPhysics wall1Physics = new CPhysics().setMovable(false).setGravityApplied(false)
+                .setSize(wallSprite.getRegionWidth() * Global.SPRITE_SCALE,
+                        wallSprite.getRegionHeight() * Global.SPRITE_SCALE);
+        wall1Physics.position.set(new Vector2(-5, 0));
+        wall1.add(wall1RenderedObject);
+        wall1.add(wall1Physics);
+
+        engine.addEntity(ground);
+        engine.addEntity(wall0);
+        engine.addEntity(wall1);
+    }
+
     @Override
     public void resize(int width, int height) {
         super.resize(width, height);

core/src/com/saltosion/gladiator/components/CPhysics.java

@@ -5,10 +5,42 @@ import com.badlogic.gdx.math.Vector2;
 
 public class CPhysics extends Component {
 
-	public Vector2 position = new Vector2(0, 0);
+    public Vector2 position = new Vector2();
-	public Vector2 velocity = new Vector2(0, 0);
+    public Vector2 velocity = new Vector2();
+    public Vector2 size = new Vector2();
+    public float movespeed = 5f, jumpForce = 5f, gravity = 1f;
+    public boolean grounded = true;
+
+    // Movable toggles if the entity can move by itself
+    public boolean movable = true;
+    // GravityApplied toggles if the entity is affected by gravity
+    public boolean gravityApplied = true;
+    // Dynamic toggles if the entity processes collisions
+    public boolean dynamic = true;
+
+    // Movement (/input) vars
     public boolean movingLeft = false;
     public boolean movingRight = false;
     public boolean jumping = false;
-	public boolean grounded = true;
+
+    public CPhysics setMovable(boolean movable) {
+        this.movable = movable;
+        return this;
+    }
+
+    public CPhysics setGravityApplied(boolean gravityApplied) {
+        this.gravityApplied = gravityApplied;
+        return this;
+    }
+
+    public CPhysics setDynamic(boolean dynamic) {
+        this.dynamic = dynamic;
+        return this;
+    }
+
+    public CPhysics setSize(float w, float h) {
+        this.size.set(w, h);
+        return this;
+    }
+
 }

core/src/com/saltosion/gladiator/input/IRJump.java

@@ -16,7 +16,6 @@ public class IRJump implements InputReceiver {
     public boolean released() {
         CPhysics physics = AppUtil.player.getComponent(CPhysics.class);
         physics.jumping = false;
-		physics.grounded = true;
         return true;
     }
 

core/src/com/saltosion/gladiator/systems/PhysicsSystem.java

@@ -0,0 +1,119 @@
+package com.saltosion.gladiator.systems;
+
+import com.badlogic.ashley.core.ComponentMapper;
+import com.badlogic.ashley.core.Engine;
+import com.badlogic.ashley.core.Entity;
+import com.badlogic.ashley.core.EntitySystem;
+import com.badlogic.ashley.core.Family;
+import com.badlogic.ashley.utils.ImmutableArray;
+import com.saltosion.gladiator.components.CPhysics;
+
+/**
+ *
+ * @author Jens "Jeasonfire" Pitkänen <jeasonfire@gmail.com>
+ */
+public class PhysicsSystem extends EntitySystem {
+
+    private ComponentMapper<CPhysics> pm = ComponentMapper.getFor(CPhysics.class);
+    private ImmutableArray<Entity> entities;
+
+    @Override
+    public void addedToEngine(Engine engine) {
+        updateEntities(engine);
+    }
+
+    @Override
+    public void update(float deltaTime) {
+        for (int i = 0; i < entities.size(); i++) {
+            CPhysics obj = pm.get(entities.get(i));
+
+            // Movement
+            if (obj.movable) {
+                float move = 0;
+                if (obj.movingLeft) {
+                    move--;
+                }
+                if (obj.movingRight) {
+                    move++;
+                }
+                obj.velocity.x = move * obj.movespeed * deltaTime;
+                if (obj.jumping) {
+                    obj.velocity.y = obj.jumpForce;
+                }
+            }
+
+            // Gravity
+            if (obj.gravityApplied) {
+                obj.velocity.y -= obj.gravity * deltaTime;
+            }
+
+            // Collisions
+            if (obj.dynamic) {
+                for (int j = 0; j < entities.size(); j++) {
+                    if (i == j) {
+                        continue;
+                    }
+                    CPhysics other = pm.get(entities.get(j));
+                    collision(obj, other);
+                }
+            }
+
+            // Apply movement
+            obj.position.add(obj.velocity);
+        }
+    }
+
+    public void collision(CPhysics cp0, CPhysics cp1) {
+        float x00 = cp0.position.x - cp0.size.x / 2;
+        float x01 = cp0.position.x + cp0.size.x / 2;
+        float x10 = cp1.position.x - cp1.size.x / 2;
+        float x11 = cp1.position.x + cp1.size.x / 2;
+        float y00 = cp0.position.y - cp0.size.y / 2;
+        float y01 = cp0.position.y + cp0.size.y / 2;
+        float y10 = cp1.position.y - cp1.size.y / 2;
+        float y11 = cp1.position.y + cp1.size.y / 2;
+        cp0.grounded = false;
+        cp1.grounded = false;
+
+        boolean colliding = (x00 < x11) && (x01 > x10) && (y00 < y11) && (y01 > y10);
+
+        if (!colliding) {
+            return;
+        }
+
+        if (x00 <= x11 && Math.abs(x00 - x11) < (cp0.size.x + cp1.size.x) / 4) {
+            // cp0's left side is colliding with cp1's right side
+            if (cp0.velocity.x < 0) {
+                // cp0 is going left, stop
+                cp0.velocity.x = 0;
+            }
+        }
+        if (x01 > x10 && Math.abs(x01 - x10) < (cp0.size.x + cp1.size.x) / 4) {
+            // cp0's right side is colliding with cp1's left side
+            if (cp0.velocity.x > 0) {
+                // cp0 is going right, stop
+                cp0.velocity.x = 0;
+            }
+        }
+        if (y00 <= y11 && Math.abs(y00 - y11) < (cp0.size.y + cp1.size.y) / 4) {
+            // cp0's bottom side is colliding with cp1's top side
+            if (cp0.velocity.y < 0) {
+                // cp0 is going down, stop
+                cp0.velocity.y = 0;
+            }
+            cp0.grounded = true;
+        }
+        if (y01 > y10 && Math.abs(y01 - y10) < (cp0.size.y + cp1.size.y) / 4) {
+            // cp0's top side is colliding with cp1's bottom side
+            if (cp0.velocity.y > 0) {
+                // cp0 is going up, stop
+                cp0.velocity.y = 0;
+            }
+        }
+    }
+
+    public void updateEntities(Engine engine) {
+        entities = engine.getEntitiesFor(Family.getFor(CPhysics.class));
+    }
+
+}

core/src/com/saltosion/gladiator/util/Global.java

@@ -8,6 +8,6 @@ public class Global {
     public static final String GAME_NAME = "Gladiator Brawl";
 
     public static final int VPHEIGHT_CONST = 14;
-	public static final float PHYSICS_TIMESTEP = 1/45f;
+    public static final float SPRITE_SCALE = 1 / 16f;
 
 }

core/src/com/saltosion/gladiator/util/Name.java

@@ -6,6 +6,8 @@ public class Name {
 
     public static final String STATICPLAYER = "STATICPLAYER";
     public static final String PLAYERIMG = "PLAYERIMG";
+    public static final String GROUNDIMG = "GROUNDIMG";
+    public static final String WALLIMG = "WALLIMG";
 
     public static final String MOVE_LEFT = "MOVE_LEFT";
     public static final String MOVE_RIGHT = "MOVE_RIGHT";

core/src/com/saltosion/gladiator/util/SpriteLoader.java

@@ -14,10 +14,13 @@ public class SpriteLoader {
     static {
         loadTexture(Name.STATICPLAYER, "sprites/staticplayer.png");
         loadTexture(Name.PLAYERIMG, "sprites/player/player.png");
+        loadTexture(Name.GROUNDIMG, "sprites/ground.png");
+        loadTexture(Name.WALLIMG, "sprites/wall.png");
     }
 
     /**
      * Returns a sprite, which is a piece from texture.
+     *
      * @param texKey
      * @param x
      * @param y
@@ -28,12 +31,13 @@ public class SpriteLoader {
     public static Sprite loadSprite(String texKey, int x, int y, int width, int height) {
         TextureRegion tr = new TextureRegion(textures.get(texKey), x * width, y * height, width, height);
         Sprite s = new Sprite(tr);
-		s.setScale(1/16f);
+        s.setScale(Global.SPRITE_SCALE);
         return s;
     }
 
     /**
      * Returns a sprite, which is originally a texture.
+     *
      * @param texKey
      * @return
      */
@@ -43,6 +47,7 @@ public class SpriteLoader {
 
     /**
      * Load texture from path.
+     *
      * @param filePath
      */
     public static Texture loadTexture(String key, String filePath) {

core/src/com/saltosion/gladiator/util/SpriteSequence.java

@@ -6,11 +6,12 @@ import com.badlogic.gdx.graphics.g2d.Sprite;
 
 public class SpriteSequence {
 
-	private ArrayList<Sprite> sprites = new ArrayList<Sprite>();
+    private final ArrayList<Sprite> sprites = new ArrayList<Sprite>();
     private float defaultPlayspeed = 1;
 
     /**
      * A static single image.
+     *
      * @param sprite
      */
     public SpriteSequence(Sprite sprite) {
@@ -20,9 +21,6 @@ public class SpriteSequence {
 
     public SpriteSequence(float playspeed) {
         this.defaultPlayspeed = playspeed;
-		if (sprites != null) {
-			this.sprites = sprites;
-		}
     }
 
     public SpriteSequence addSprite(Sprite s) {