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Fixed Box2D world generation

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Fixed Box2D world generation by subtracting tile offset
Added Box2D debug renderer
Disabled RenderSystem debug subtile flag
This commit is contained in:
Collin Smith 2019-11-20 00:16:10 -08:00
parent 3bd3e5f64e
commit 24b6a9d3ed
4 changed files with 56 additions and 5 deletions
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4
core/src/com/riiablo/camera/IsometricCamera.java
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@ -22,6 +22,10 @@ public class IsometricCamera extends OrthographicCamera {
toWorld(pixOffset.x, pixOffset.y, tileOffset.setZero());
}
public Vector2 getTileOffset(Vector2 dst) {
return dst.set(tileOffset);
}
@Override
public void translate(Vector2 vec) {
translate(vec.x, vec.y);

45
core/src/com/riiablo/engine/system/debug/Box2DDebugRenderSystem.java Normal file
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@ -0,0 +1,45 @@
package com.riiablo.engine.system.debug;
import com.badlogic.ashley.core.Engine;
import com.badlogic.ashley.core.EntitySystem;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.math.Vector3;
import com.badlogic.gdx.physics.box2d.Box2DDebugRenderer;
import com.riiablo.map.Box2DPhysicsSystem;
import com.riiablo.map.RenderSystem;
public class Box2DDebugRenderSystem extends EntitySystem {
private static final float BOX2D_ZOOM_FACTOR = 0.04419419f;
RenderSystem renderSystem;
Box2DPhysicsSystem physicsSystem;
OrthographicCamera camera;
Box2DDebugRenderer renderer;
public Box2DDebugRenderSystem(RenderSystem renderSystem) {
setProcessing(false);
this.renderSystem = renderSystem;
renderer = new Box2DDebugRenderer();
camera = new OrthographicCamera();
camera.setToOrtho(true);
camera.near = -1024;
camera.far = 1024;
camera.rotate(Vector3.X, -60);
camera.rotate(Vector3.Z, -45);
}
@Override
public void addedToEngine(Engine engine) {
assert physicsSystem == null;
physicsSystem = engine.getSystem(Box2DPhysicsSystem.class);
assert physicsSystem != null;
}
@Override
public void update(float delta) {
camera.position.set(renderSystem.iso().position, 0);
camera.zoom = BOX2D_ZOOM_FACTOR * renderSystem.zoom();
camera.update();
renderer.render(physicsSystem.world, camera.combined);
}
}

10
core/src/com/riiablo/map/Box2DPhysicsSystem.java
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@ -19,6 +19,7 @@ import com.badlogic.gdx.utils.Array;
import com.badlogic.gdx.utils.Disposable;
import com.badlogic.gdx.utils.IntMap;
import com.badlogic.gdx.utils.ObjectMap;
import com.riiablo.camera.IsometricCamera;
import com.riiablo.engine.component.Box2DComponent;
import com.riiablo.engine.component.PositionComponent;
import com.riiablo.engine.component.VelocityComponent;
@ -76,15 +77,16 @@ public class Box2DPhysicsSystem extends IntervalIteratingSystem implements Entit
world.destroyBody(body);
}
public void setMap(Map map) {
public void setMap(Map map, IsometricCamera iso) {
if (this.map != map) {
this.map = map;
createBodies();
Vector2 tileOffset = iso.getTileOffset(new Vector2()).scl(-1); // offset inverse of tile offset
createBodies(tileOffset);
if (DEBUG) Gdx.app.debug(TAG, "bodies=" + world.getBodyCount());
}
}
private void createBodies() {
private void createBodies(Vector2 offset) {
IntMap<Filter> filters = new IntMap<>();
BodyDef def = new BodyDef();
@ -116,7 +118,7 @@ public class Box2DPhysicsSystem extends IntervalIteratingSystem implements Entit
}
int lenY = endY - ty;
def.position.set((endX + tx) / 2f, (endY + ty) / 2f);
def.position.set((endX + tx) / 2f, (endY + ty) / 2f).add(offset);
PolygonShape shape = new PolygonShape();
shape.setAsBox(lenX / 2f, lenY / 2f);

2
core/src/com/riiablo/map/RenderSystem.java
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@ -50,7 +50,7 @@ public class RenderSystem extends EntitySystem {
private static final boolean DEBUG = true;
private static final boolean DEBUG_MATH = DEBUG && !true;
private static final boolean DEBUG_BUFFER = DEBUG && true;
private static final boolean DEBUG_SUBTILE = DEBUG && true;
private static final boolean DEBUG_SUBTILE = DEBUG && !true;
private static final boolean DEBUG_TILE = DEBUG && !true;
private static final boolean DEBUG_CAMERA = DEBUG && true;
private static final boolean DEBUG_OVERSCAN = DEBUG && true;