Push back rectangle where collision happens
- by Tifa
I have a tile collision on a game I am creating but the problem is once a collision happens for example a collision happens in right side my sprite cant move to up and bottom :( thats because i set the speed to 0. I thinks its wrong. here is my code:
int startX, startY, endX, endY;
float pushx = 0,pushy = 0;
// move player
if(Gdx.input.isKeyPressed(Input.Keys.LEFT)){
dx=-1;
currentWalk = leftWalk;
}
if(Gdx.input.isKeyPressed(Input.Keys.RIGHT)){
dx=1;
currentWalk = rightWalk;
}
if(Gdx.input.isKeyPressed(Input.Keys.DOWN)){
dy=-1;
currentWalk = downWalk;
}
if(Gdx.input.isKeyPressed(Input.Keys.UP)){
dy=1;
currentWalk = upWalk;
}
sr.setProjectionMatrix(camera.combined);
sr.begin(ShapeRenderer.ShapeType.Line);
Rectangle koalaRect = rectPool.obtain();
koalaRect.set(player.getX(), player.getY(), pw, ph /2 );
float oldX = player.getX(), oldY = player.getY(); // THIS LINE WAS ADDED
player.setXY(player.getX() + dx * Gdx.graphics.getDeltaTime() * 4f, player.getY() + dy * Gdx.graphics.getDeltaTime() * 4f); // THIS LINE WAS MOVED HERE FROM DOWN BELOW
if(dx> 0) {
startX = endX = (int)(player.getX() + pw);
} else {
startX = endX = (int)(player.getX() );
}
startY = (int)(player.getY());
endY = (int)(player.getY() + ph);
getTiles(startX, startY, endX, endY, tiles);
for(Rectangle tile: tiles) {
sr.rect(tile.x,tile.y,tile.getWidth(),tile.getHeight());
if(koalaRect.overlaps(tile)) {
//dx = 0;
player.setX(oldX); // THIS LINE CHANGED
Gdx.app.log("x","hit " + player.getX() + " " + oldX);
break;
}
}
if(dy > 0) {
startY = endY = (int)(player.getY() + ph );
} else {
startY = endY = (int)(player.getY() );
}
startX = (int)(player.getX());
endX = (int)(player.getX() + pw);
getTiles(startX, startY, endX, endY, tiles);
for(Rectangle tile: tiles) {
if(koalaRect.overlaps(tile)) {
//dy = 0;
player.setY(oldY); // THIS LINE CHANGED
//Gdx.app.log("y","hit" + player.getY() + " " + oldY);
break;
}
}
sr.rect(koalaRect.x,koalaRect.y,koalaRect.getWidth(),koalaRect.getHeight() / 2);
sr.setColor(Color.GREEN);
sr.end();
I want to push back the sprite when a collision happens but i have no idea how :D pls help
