objects update

core/src/game_objects/dynamicObject.java

-package game_objects;
-
-import com.badlogic.gdx.Gdx;
-import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
-import com.badlogic.gdx.graphics.glutils.ShapeRenderer.ShapeType;
-import com.badlogic.gdx.graphics.Color;
-import com.badlogic.gdx.graphics.Texture;
-import com.badlogic.gdx.Input.Keys;
-import com.badlogic.gdx.graphics.g2d.Sprite;
-import com.badlogic.gdx.math.Vector2;
-import com.badlogic.gdx.physics.box2d.*;
-import com.badlogic.gdx.physics.box2d.BodyDef.BodyType;
-
-import physics.world_simulation;
-
-public class dynamicObject extends gameObject{
-	// Used to create the object in the simulation world
-	public Body 		objBody;
-	Fixture		objFixture;
-	float objradius;
-	
-	
-	public dynamicObject()
-	{
-	
-	}
-	
-	public dynamicObject(world_simulation worldSim, Vector2 screenPos,float radius, int SHAPE)
-	{
-		BodyDef 	objBodyDef;
-		FixtureDef 	objFixtureDef;
-		objradius = radius;
-		
-		// Create object in simulation
-		
-		// We need a BodyDef to hold all the information
-		objBodyDef = new BodyDef();
-		// We want a dynamic body, one which will move and be affected by the physics
-		objBodyDef.type = BodyType.DynamicBody;
-		
-		// Calculate the position in the simulation based on the desired on screen position
-		Vector2 simPos = new Vector2(worldSim.getSimPos(screenPos));
-		objBodyDef.position.set(simPos);
-		
-		// Create our body in the world using the body definition
-		objBody = worldSim.world.createBody(objBodyDef);
-		
-		// Create a circle shape with a radius of 6
-		CircleShape circle = new CircleShape();
-		circle.setRadius(radius*worldSim.meterToPixel);
-		
-		// Create a fixture definition to apply physics to our shape.
-		objFixtureDef = new FixtureDef();
-		objFixtureDef.shape = circle;
-		objFixtureDef.density = 0.5f; // a measure of the objects solidness
-		objFixtureDef.friction = 0.4f; // a measure of how much the object will stick to other objs
-		objFixtureDef.restitution = 0.6f; // a measure of bounciness.
-		
-		// Create the fixture and attach it to the body
-		objFixture = objBody.createFixture(objFixtureDef);
-		
-		// shape no longer needed so can be disposed of
-		circle.dispose();
-		
-		
-	}
-	
-	public void Update()
-	{
-	}
-	
-	public void Render(world_simulation worldSim, ShapeRenderer shapeRend)
-	{
-		Vector2 mySimPos = new Vector2(objBody.getPosition().x,objBody.getPosition().y);
-		Vector2 myRenderPos = worldSim.getRenderPos(mySimPos);	
-		shapeRend.begin(ShapeType.Filled);
-		shapeRend.circle(myRenderPos.x, myRenderPos.y, objradius);
-		shapeRend.setColor(Color.WHITE);
-		shapeRend.end();	
-	}
-	
-}

core/src/physics/dynamicObject.java

+package physics;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer.ShapeType;
+import com.badlogic.gdx.graphics.Color;
+import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.Input.Keys;
+import com.badlogic.gdx.graphics.g2d.Sprite;
+import com.badlogic.gdx.math.Vector2;
+import com.badlogic.gdx.math.MathUtils;
+import com.badlogic.gdx.physics.box2d.*;
+import com.badlogic.gdx.physics.box2d.BodyDef.BodyType;
+
+public class dynamicObject extends gameObject{
+	// Used to create the object in the simulation world
+	public Body objBody;
+	Fixture		objFixture;
+	int	shape;
+	Vector2 simSize;
+	Vector2 renderSize;
+	Color	colour;
+
+	
+	
+	public dynamicObject()
+	{
+	
+	}
+	
+	public dynamicObject(world_simulation worldSim, Vector2 screenPos, Vector2 size, float angle_deg, int SHAPE, Color theCol, float density, float friction, float restitution)
+	{
+		BodyDef 	objBodyDef;
+		FixtureDef 	objFixtureDef;
+		
+		colour = theCol;
+		
+		renderSize = new Vector2(size);
+		simSize = new Vector2(size);
+		shape = SHAPE;
+		
+		Vector2 simPos = new Vector2(worldSim.getSimPos(screenPos));
+		
+		// We need a BodyDef to hold all the information
+		objBodyDef = new BodyDef();
+		// We want a dynamic body, one which will move and be affected by the physics
+		objBodyDef.type = BodyType.DynamicBody;
+
+		if (SHAPE==worldSim.RECTANGLE)
+		{
+			simSize.x = simSize.x/2;
+			simSize.y = simSize.y/2;
+			simPos.x = simPos.x + simSize.x;
+			simPos.y = simPos.y + simSize.y;			
+
+			
+			objBodyDef.position.set(simPos);
+			objBodyDef.angle = (angle_deg / (180f))* MathUtils.PI;  
+			
+			// Create our body in the world using the body definition
+			objBody = worldSim.world.createBody(objBodyDef);
+			
+			// Create a circle shape with a radius of 6
+			PolygonShape rect = new PolygonShape();
+			rect.setAsBox(simSize.x, simSize.y);
+			
+			
+			// Create a fixture definition to apply physics to our shape.
+			objFixtureDef = new FixtureDef();
+			objFixtureDef.shape = rect;
+			
+			
+				
+			objFixtureDef.density = density; // a measure of the objects solidness
+			objFixtureDef.friction = friction; // a measure of how much the object will stick to other objs
+			objFixtureDef.restitution = restitution; // a measure of bounciness.
+			
+			// Create the fixture and attach it to the body
+			objFixture = objBody.createFixture(objFixtureDef);
+			
+			// shape no longer needed so can be disposed of		
+			rect.dispose();
+		
+		}
+			
+		else if (SHAPE==worldSim.CIRCLE)
+		{
+		
+			objBodyDef.position.set(simPos);
+		
+			// Create our body in the world using the body definition
+			objBody = worldSim.world.createBody(objBodyDef);
+			
+			// Create a circle shape with a radius of 6
+			CircleShape circle = new CircleShape();
+			circle.setRadius(simSize.x);
+			
+			// Create a fixture definition to apply physics to our shape.
+			objFixtureDef = new FixtureDef();
+			objFixtureDef.shape = circle;
+				
+			objFixtureDef.density = density; // a measure of the objects solidness
+			objFixtureDef.friction = friction; // a measure of how much the object will stick to other objs
+			objFixtureDef.restitution = restitution; // a measure of bounciness.
+			
+			// Create the fixture and attach it to the body
+			objFixture = objBody.createFixture(objFixtureDef);
+			
+			// shape no longer needed so can be disposed of		
+			circle.dispose();
+		}
+		
+		
+	}
+	
+	public void Update()
+	{
+	}
+	
+	public void Render(world_simulation worldSim, ShapeRenderer shapeRend)
+	{		
+		Vector2 mySimPos = new Vector2(objBody.getPosition().x,objBody.getPosition().y);
+		Vector2 myRenderPos = worldSim.getRenderPos(mySimPos);
+		float deg_angle = (objBody.getAngle() / MathUtils.PI)*180f;
+		
+		if (shape == worldSim.RECTANGLE)
+		{
+			myRenderPos.y -= renderSize.y/2;
+			myRenderPos.x -= renderSize.x/2;
+			shapeRend.begin(ShapeType.Filled);
+			shapeRend.setColor(colour);
+			shapeRend.rect(myRenderPos.x, myRenderPos.y,renderSize.x/2,renderSize.y/2,
+						renderSize.x,renderSize.y,1f,1f, deg_angle);
+			shapeRend.end();
+		}
+		else if (shape == worldSim.CIRCLE)
+		{
+			myRenderPos.y -= renderSize.y/2;
+			shapeRend.begin(ShapeType.Filled);
+			shapeRend.setColor(colour);
+			shapeRend.circle(myRenderPos.x, myRenderPos.y,renderSize.x);
+			shapeRend.end();
+		}
+	}
+	
+}

core/src/game_objects/gameObject.java → core/src/physics/gameObject.java

-package game_objects;
+package physics;
 
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.graphics.Texture;
@@ -6,13 +6,17 @@ import com.badlogic.gdx.Input.Keys;
 import com.badlogic.gdx.graphics.g2d.Sprite;
 import com.badlogic.gdx.math.Vector2;
 import com.badlogic.gdx.physics.box2d.*;
-import physics.world_simulation;
 
 public class gameObject {
+	
 	// Texture and Sprite are used to render the object to the screen
 	public Texture texture;
 	public Sprite sprite;
 	
+	
+
+	
+	
 	public gameObject()
 	{
 	

core/src/game_objects/staticObject.java → core/src/physics/staticObject.java

-package game_objects;
+package physics;
 
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
@@ -11,13 +11,14 @@ import com.badlogic.gdx.math.Vector2;
 import com.badlogic.gdx.physics.box2d.*;
 import com.badlogic.gdx.physics.box2d.BodyDef.BodyType;
 
-import physics.world_simulation;
-
 public class staticObject extends gameObject{
 	// Used to create the object in the simulation world
 	Body 		objBody;
 	Fixture		objFixture;
-	Vector2			objSize;
+	int	shape;
+	Vector2 simSize;
+	Vector2 renderSize;
+	Color	colour;
 	
 	
 	public staticObject()
@@ -25,33 +26,56 @@ public class staticObject extends gameObject{
 	
 	}
 	
-	public staticObject(world_simulation worldSim, Vector2 screenPos,Vector2 size, int SHAPE)
+	public staticObject(world_simulation worldSim, Vector2 screenPos, Vector2 size, int SHAPE, Color theCol)
 	{
 		BodyDef 		objBodyDef;
-		PolygonShape 	objShape;
 		
-		objSize = new Vector2(size);
-		// Create object in simulation
+		colour = theCol;
 		
-		// We need a BodyDef to hold all the information
-		objBodyDef = new BodyDef();
+		renderSize = new Vector2(size);
+		simSize = new Vector2(size);
+
+		shape = SHAPE;
 
 		Vector2 simPos = new Vector2(worldSim.getSimPos(screenPos));
-		simPos.y = simPos.y + (size.y/2);
-		objBodyDef.position.set(simPos);
 		
-		// Create our body in the world using the body definition
-		objBody = worldSim.world.createBody(objBodyDef);
 		
+		if (SHAPE==worldSim.RECTANGLE)
+		{
+			simSize.x = simSize.x/2;
+			simSize.y = simSize.y/2;
+			objBodyDef = new BodyDef();
+			simPos.x = simPos.x + simSize.x;
+			simPos.y = simPos.y + simSize.y;			
+			objBodyDef.position.set(simPos);
+			objBody = worldSim.world.createBody(objBodyDef);
+			PolygonShape 	objShape;
 			objShape = new PolygonShape();
-		objShape.setAsBox(size.x/2, size.y/2);
+			objShape.setAsBox(simSize.x, simSize.y);
 			
+			// Create the fixture and attach it to the body
+			objBody.createFixture(objShape,0.0f);
+			
+			// shape no longer needed so can be disposed of
+			objShape.dispose();
+		}
+		else if (SHAPE == worldSim.CIRCLE)
+		{
+			objBodyDef = new BodyDef();
+			objBodyDef.position.set(simPos);
+			objBody = worldSim.world.createBody(objBodyDef);
+			CircleShape objShape;
+			objShape = new CircleShape();
+			objShape.setRadius(simSize.x);
 			
 			// Create the fixture and attach it to the body
 			objBody.createFixture(objShape,0.0f);
 			
 			// shape no longer needed so can be disposed of
 			objShape.dispose();
+		}		
+		
+		
 		
 		
 	}
@@ -64,12 +88,25 @@ public class staticObject extends gameObject{
 	{
 		Vector2 mySimPos = new Vector2(objBody.getPosition().x,objBody.getPosition().y);
 		Vector2 myRenderPos = worldSim.getRenderPos(mySimPos);
-		myRenderPos.y -= objSize.y/2;
+		
+		if (shape == worldSim.RECTANGLE)
+		{
+			myRenderPos.y -= renderSize.y/2;
+			myRenderPos.x -= renderSize.x/2;
 			shapeRend.begin(ShapeType.Filled);
-		shapeRend.rect(myRenderPos.x, myRenderPos.y,objSize.x,objSize.y);
-		shapeRend.setColor(Color.WHITE);
+			shapeRend.setColor(colour);
+			shapeRend.rect(myRenderPos.x, myRenderPos.y,renderSize.x,renderSize.y);
 			shapeRend.end();
 		}
+		else if (shape == worldSim.CIRCLE)
+		{
+			myRenderPos.y -= renderSize.y/2;
+			shapeRend.begin(ShapeType.Filled);
+			shapeRend.setColor(colour);
+			shapeRend.circle(myRenderPos.x, myRenderPos.y,renderSize.x);
+			shapeRend.end();
+		}
+	}
 	
 
 

core/src/physics/world_simulation.java

@@ -24,6 +24,9 @@ public class world_simulation {
 	
 	final boolean DEBUG = false;
 	
+	public final int RECTANGLE = 0;
+	public final int CIRCLE = 1;
+	
 	Vector2 RenderMin;
 	Vector2 RenderMax;
 	Vector2 SimMin;

core/src/screens/MainGameScreen.java

@@ -6,16 +6,20 @@ import com.badlogic.gdx.graphics.GL20;
 import com.mygdx.game.*;
 import com.badlogic.gdx.math.Vector2;
 import com.badlogic.gdx.Input;
+import com.badlogic.gdx.graphics.Color;
 
-import game_objects.*;
-import physics.world_simulation;
+import physics.*;
 
 public class MainGameScreen extends ScreenTemplate{
 
 	world_simulation theWorld;
-	dynamicObject circle1;
-	staticObject ground;
-	staticObject wall;
+	dynamicObject dynCircle;
+	dynamicObject dynBlock;
+	staticObject statGround;
+	staticObject statBall;
+	float density = 0.5f;
+	float friction = 0.4f;
+	float restitution = 0.6f;
 	
 	float torque = 1.0f;
 
@@ -27,9 +31,11 @@ public class MainGameScreen extends ScreenTemplate{
 		
 		Gdx.input.setInputProcessor(this);
 		
-		circle1 = new dynamicObject(theWorld, new Vector2(300,300), 30, 0);
-		ground = new staticObject(theWorld,new Vector2(0,0), new Vector2(600,20),0);
-		wall = new staticObject(theWorld, new Vector2(0,0), new Vector2(10,600), 0);
+		dynCircle = new dynamicObject(theWorld, new Vector2(300,300), new Vector2(50,0),45f, theWorld.CIRCLE, Color.PURPLE, density, friction, restitution);
+		dynBlock = new dynamicObject(theWorld, new Vector2(200,100), new Vector2(200,20),0f, theWorld.RECTANGLE, Color.ORANGE, density, friction, restitution);
+		statBall = new staticObject(theWorld,new Vector2(100,500), new Vector2(40,0),theWorld.CIRCLE, Color.RED);
+		statGround = new staticObject(theWorld,new Vector2(0,0), new Vector2(600,20),theWorld.RECTANGLE, Color.GREEN);
+		
 		
 		
 	}
@@ -44,7 +50,7 @@ public class MainGameScreen extends ScreenTemplate{
 	public void update(float delta)
 	{
 		theWorld.update();
-		circle1.objBody.applyTorque(torque, true);
+		
 	}
 	
 	public void render_me(float delta)
@@ -61,9 +67,10 @@ public class MainGameScreen extends ScreenTemplate{
 		
 		// render our sprite using the sprite batch set up in the game core
 		
-		circle1.Render(theWorld, game_handle.shapeRenderer);
-		ground.Render(theWorld, game_handle.shapeRenderer);
-		wall.Render(theWorld, game_handle.shapeRenderer);
+		dynCircle.Render(theWorld, game_handle.shapeRenderer);
+		dynBlock.Render(theWorld, game_handle.shapeRenderer);
+		statGround.Render(theWorld, game_handle.shapeRenderer);
+		statBall.Render(theWorld, game_handle.shapeRenderer);
 		
 		game_handle.batch.end();
 	}