public void Update(GameUpdateSets u)
{
if (u.level.timeSpentPlaying <= 0.75f)
{
u.level.camera.viewHeigthWs = MyMath.lerp(u.level.timeSpentPlaying / 0.75f, 160f, 240f);
}
else
{
u.level.camera.viewHeigthWs = 240;
}
float jumpHeight = 36f;
float jumpTimeApex = 0.3f;
float minJumpHeight = 8f;
float fallingGravityMultiplier = 1f;
float gravity = 2f * jumpHeight / (jumpTimeApex * jumpTimeApex);
float fallingGravity = gravity * fallingGravityMultiplier;
float maxJumpVelocity = gravity * jumpTimeApex;
float minJumpVelocity = System.MathF.Sqrt(2f * gravity * minJumpHeight);
// Update
if (isDead)
{
vel = Vector2.Zero;
timeSpentDead += u.dt;
if (timeSpentDead > 1f)
{
u.level.shouldRestart = true;
}
return;
}
// Input, don't take it if the level is complete.
#if DEBUG
if ((Keyboard.GetState().IsKeyDown(Keys.F5) && !u.game.oldks.IsKeyDown(Keys.F5)))
{
u.level.isComplete = true;
}
#endif
if (u.level.isComplete == false)
{
isCrouched = Keyboard.GetState().IsKeyDown(Keys.Down) || GamePad.GetState(0).IsButtonDown(Buttons.DPadDown) || (GamePad.GetState(0).ThumbSticks.Left.Y < -0.1f);
if (!isCrouched && Keyboard.GetState().IsKeyDown(Keys.Left) || GamePad.GetState(0).IsButtonDown(Buttons.DPadLeft))
{
vel.X = MyMath.lerpClamp(vel.X, -140f, 350 * u.dt);
walkAnimEvalTime += (float)(u.dt);
_isFacingRight = false;
}
if (!isCrouched && Keyboard.GetState().IsKeyDown(Keys.Right) || GamePad.GetState(0).IsButtonDown(Buttons.DPadRight))
{
vel.X = MyMath.lerpClamp(vel.X, 140f, 350 * u.dt);
walkAnimEvalTime += (float)(u.dt);
_isFacingRight = true;
}
if (!isCrouched && MathF.Abs(GamePad.GetState(0).ThumbSticks.Left.X) > 0.01f)
{
float k = GamePad.GetState(0).ThumbSticks.Left.X;
vel.X = MyMath.lerpClamp(vel.X, 140f * k, 350 * u.dt);
walkAnimEvalTime += (float)(u.dt);
_isFacingRight = k > 0f;
}
bool isJumpBtnPressed = (Keyboard.GetState().IsKeyDown(Keys.Space) && !u.game.oldks.IsKeyDown(Keys.Space)) || (u.game.oldgs.IsButtonUp(Buttons.A) && GamePad.GetState(0).IsButtonDown(Buttons.A));
bool isJumpBtnReleased = !Keyboard.GetState().IsKeyDown(Keys.Space) && u.game.oldks.IsKeyDown(Keys.Space) || (u.game.oldgs.IsButtonDown(Buttons.A) && GamePad.GetState(0).IsButtonUp(Buttons.A));
if ((timeSpentInAir < 0.15f || jumpCounter == 1) && isJumpBtnPressed)
{
// pressed
vel.Y = -maxJumpVelocity;
jumpCounter++;
foreach (JumpSwitch tile in u.level.jumpSwitches)
{
tile._isSolid = !tile._isSolid;
}
u.game.jumpSfx.Play();
}
if (isJumpBtnReleased)
{
// released
if (vel.Y < -minJumpVelocity)
{
vel.Y = -minJumpVelocity;
}
}
}
// Physics movement with no collisions (they are handled below).
pos += vel * u.dt;
if (vel.Y < 0)
{
vel.Y += gravity * u.dt;
}
else
{
vel.Y += fallingGravity * u.dt;
}
vel.X -= vel.X * (isCrouched ? 0.1f : 0.05f);
// Collision check and response.
bool isGrounded = false;
// Non-harmful walkable tiles.
CollisionTiles(u.level.tiles, ref isGrounded);
CollisionTiles(u.level.jumpSwitches, ref isGrounded);
CollisionTiles(u.level.timeSwitches, ref isGrounded);
if (isGrounded)
{
jumpCounter = 0;
timeSpentInAir = 0f;
}
else
{
timeSpentInAir += u.dt;
}
// Enemies collision and death.
CollisionTestEnemies(u.level.walkers, u.level);
CollisionTestEnemies(u.level.fires, u.level);
CollisionTestEnemies(u.level.fireProjectiles, u.level);
CollisionTestEnemies(u.level.ghosties, u.level);
CollisionTestEnemies(u.level.iceSpikes, u.level);
// Letters collecting
foreach (Letter letter in u.level.letters)
{
if (letter.isCollected == false)
{
Rectf snowmanRect = GetRectWs();
Vector2 depth = snowmanRect.GetIntersectionDepth(letter.GetRectWs());
if (depth != Vector2.Zero)
{
letter.isCollected = true;
u.game.pickupSfx.Play();
}
}
}
// Mailbox level ending.
if (u.level.letterBox != null)
{
Rectf snowmanRect = GetRectWs();
Vector2 depth = snowmanRect.GetIntersectionDepth(u.level.letterBox.GetRectWs());
if (depth != Vector2.Zero)
{
bool areAllLeteterCollected = true;
foreach (Letter l in u.level.letters)
{
areAllLeteterCollected &= l.isCollected;
}
if (areAllLeteterCollected && u.level.isComplete == false)
{
u.level.isComplete = true;
u.game.levelWinSfx.Play();
}
}
}
// Kill the player if he falls. Don't kill him if the level is completed.
if (pos.Y >= u.level.deathYCoord && !u.level.isComplete)
{
isDead = true;
}
// Acumulated values to check for events.
if (isDead && !wasDead)
{
u.game.hitSfx.Play();
}
wasDead = isDead;
wasGrounded = isGrounded;
// Move the camera.
Camera cam = u.level.camera;
if (cam.pos.X - pos.X < -16f)
{
cam.pos.X = pos.X - 16f;
}
if (cam.pos.X - pos.X > 100f)
{
cam.pos.X = pos.X + 100f;
}
if (cam.pos.Y - (pos.Y + 50f) < -50f)
{
cam.pos.Y = (pos.Y + 50f) - 50f;
}
if (cam.pos.Y - pos.Y > 100f)
{
cam.pos.Y = pos.Y + 100f;
}
}