/// <summary>
/// This is called when the game should draw itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.CornflowerBlue);
//Fix for the depth state issue while drawing both 3D and 2D objects on screen
//Fix found on: http://stackoverflow.com/questions/4996988/z-buffer-issue-by-mixing-2d-sprites-with-3d-model
GraphicsDevice.DepthStencilState = DepthStencilState.Default;
//Draw ground and walls for each room
//Room1
DrawModel(floorModel, world, view, projection, floorTex, 1.5f, Vector3.Zero, new Vector3(0, 35, -10), true);
DrawModel(wallModelLeft, world, view, projection, wallTex, 1.5f, new Vector3(0, MathHelper.PiOver2, 0), new Vector3(-85, 36, -15), true);
DrawModel(wallModelRight, world, view, projection, wallTex, 1.5f, new Vector3(0, MathHelper.PiOver2, 0), new Vector3(85, 36, -15), true);
DrawModel(wallModelVeryBack, world, view, projection, wallTex, 1.55f, new Vector3(MathHelper.PiOver2, 0, 0), new Vector3(0, -55, -15), true);
DrawModel(wallModelBackLeft, world, view, projection, wallTex, 1.35f, new Vector3(MathHelper.PiOver2, 0, 0), new Vector3(-105, 120, -10), true);
DrawModel(wallModelBackRight, world, view, projection, wallTex, 1.35f, new Vector3(MathHelper.PiOver2, 0, 0), new Vector3(105, 120, -10), true);
DrawModel(exitDoorModel, world, view, projection, exitDoorTex, 1.35f, new Vector3(MathHelper.PiOver2, 0, 0), exitDoorPos, false);
//Room2
DrawModel(floorModel, world, view, projection, floorTex, 1.5f, Vector3.Zero, new Vector3(0, 210, -10), true);
DrawModel(wallModelLeft, world, view, projection, wallTex, 1.6f, new Vector3(0, MathHelper.PiOver2, 0), new Vector3(-85, 200, -15), true);
DrawModel(wallModelRight, world, view, projection, wallTex, 1.6f, new Vector3(0, MathHelper.PiOver2, 0), new Vector3(85, 200, -15), true);
DrawModel(wallModelBackLeft, world, view, projection, wallTex, 1.35f, new Vector3(MathHelper.PiOver2, 0, 0), new Vector3(-105, 300, -10), true);
DrawModel(wallModelBackRight, world, view, projection, wallTex, 1.35f, new Vector3(MathHelper.PiOver2, 0, 0), new Vector3(105, 300, -10), true);
DrawModel(exitDoorModel, world, view, projection, exitDoorTex, 1.35f, new Vector3(MathHelper.PiOver2, 0, 0), exitDoor2Pos, false);
//Room3
DrawModel(floorModel, world, view, projection, floorTex, 1.5f, Vector3.Zero, new Vector3(0, 380, -10), true);
DrawModel(wallModelLeft, world, view, projection, wallTex, 1.65f, new Vector3(0, MathHelper.PiOver2, 0), new Vector3(-85, 365, -15), true);
DrawModel(wallModelRight, world, view, projection, wallTex, 1.65f, new Vector3(0, MathHelper.PiOver2, 0), new Vector3(85, 365, -15), true);
DrawModel(wallModelVeryBack, world, view, projection, wallTex, 1.6f, new Vector3(MathHelper.PiOver2, 0, 0), new Vector3(0, 465, -10), true);
//Draw Models
heroCharacter.DrawModel(world, view, projection, mainCam);
//Draw each enemy
foreach (Enemy en in room1Enemies.Concat(room2Enemies).Concat(room3Enemies))
{
if (en != null)
{
en.DrawModel(world, view, projection, mainCam);
}
}
//Draw each hero attack
for (int i = 0; i < heroCharacter.NumAttacks; i++)
{
foreach (HeroAttack hAttack in heroCharacter.OnScreenAttacks)
{
if (hAttack != null)
{
hAttack.DrawModel(world, view, projection, mainCam);
}
}
}
//Draw each boss attack if the enemy boss is present on screen
if (enemyBoss != null)
{
foreach (BossAttack bAttack in enemyBoss.OnScreenBossAttacks)
{
if (bAttack != null)
{
bAttack.DrawModel(world, view, projection, mainCam);
}
}
}
//Draw the title screen
if (gameState == 1 || gameState == 3)
{
spriteBatch.Begin();
//Draw the title screen
if (gameState == 1)
{
spriteBatch.Draw(titleScreen, new Vector2(0, 0), Color.White);
}
//Draw the game over (win) or the game over (lose) screen
if (gameState == 3)
{
//Game over death
if (gameOverDeath)
{
spriteBatch.Draw(deathScreen, new Vector2(0, 0), Color.White);
}
else
{
//Game over win
spriteBatch.Draw(winScreen, new Vector2(0, 0), Color.White);
spriteBatch.DrawString(gameFont, "FINAL SCORE: " + gameScore, new Vector2(280, 300), Color.White);
spriteBatch.DrawString(gameFont, "TIME COMPLETION: " + totalTimePlayed, new Vector2(280, 340), Color.White);
}
}
spriteBatch.End();
}
//ONLY DRAW THIS IF WE ARE IN THE GAME STATE
if (gameState == 2)
{
//Draw text on the screen
//Also draw the 2D health bars of the hero and the enemies
spriteBatch.Begin();
//If the game is paused then draw that string on screen
if (gamePaused)
{
spriteBatch.DrawString(gameFont, "GAME PAUSED", new Vector2(340, 50), Color.White);
}
//Draw Player Health
Vector2 heroHealthPos = new Vector2(90, 15);
int heroHealthPercentage = (int)((heroCharacter.Health / GameConstants.heroHealth) * 100);
if (heroHealthPercentage >= 75)
{
healthBarColor = Color.Green;
}
else if (heroHealthPercentage >= 40)
{
healthBarColor = Color.Orange;
}
else
{
healthBarColor = Color.Red;
}
spriteBatch.DrawString(gameFont, "Health: ", new Vector2(10, 10), Color.White);
spriteBatch.Draw(healthBar, heroHealthPos, new Rectangle((int)heroHealthPos.X, (int)heroHealthPos.Y, heroHealthPercentage, healthBar.Height), healthBarColor);
spriteBatch.Draw(healthBarOutline, heroHealthPos, Color.White);
//Draw amount of attacks left
spriteBatch.DrawString(gameFont, "Attacks Left: " + (GameConstants.heroNumAttacks - heroCharacter.NumAttacks), new Vector2(10, 30), Color.White);
//Draw string for turning sound on and off
if (soundOff)
{
spriteBatch.DrawString(gameFont, "Press W to turn the sound ON.", new Vector2(10, 50), Color.White);
}
else
{
spriteBatch.DrawString(gameFont, "Press W to turn the sound OFF.", new Vector2(10, 50), Color.White);
}
//Draw Game Time
TimeSpan ts = gameTime.TotalGameTime;
string timePlayed = string.Format("{0}:{1}", Math.Floor(ts.TotalMinutes), ts.ToString("ss"));
spriteBatch.DrawString(gameFont, "Time Played: " + timePlayed, new Vector2(580, 10), Color.White);
//Draw Enemy Health
foreach (Enemy en in room1Enemies.Concat(room2Enemies).Concat(room3Enemies))
{
if (en != null)
{
//Convert to screen space. (0,0) in spriteBatch isn't same as the camera's view matrix
Vector3 screenSpace = GraphicsDevice.Viewport.Project(Vector3.Zero, mainCam.projectionMatrix, mainCam.viewMatrix, Matrix.CreateTranslation(en.Position));
Vector2 healthPos;
if (en.IsBoss)
{
//Boss health should be placed slightly lower
healthPos = new Vector2((int)screenSpace.X - (healthBarOutline.Width / 2), (int)screenSpace.Y + 60);
}
else
{
//Regular enemy health position
healthPos = new Vector2((int)screenSpace.X - (healthBarOutline.Width / 2), (int)screenSpace.Y + 25);
}
//Get the health of the enemy as a percentage between 0 and 100
//Assign a color of the health depending on how much is left i.e. Green - most health, Red - near death
int enemyHealthPercentage = (int)((en.Health / en.InitHealth) * 100);
if (enemyHealthPercentage >= 75)
{
healthBarColor = Color.Green;
}
else if (enemyHealthPercentage >= 40)
{
healthBarColor = Color.Orange;
}
else
{
healthBarColor = Color.Red;
}
spriteBatch.Draw(healthBar, healthPos, new Rectangle((int)healthPos.X, (int)healthPos.Y, enemyHealthPercentage, healthBar.Height), healthBarColor);
spriteBatch.Draw(healthBarOutline, healthPos, Color.White);
}
}
//Draw Game Score
spriteBatch.DrawString(gameFont, "Total Score: " + gameScore, new Vector2(580, 30), Color.White);
spriteBatch.End();
}
base.Draw(gameTime);
}
