semicolin/sneak
semicolin/sneak
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Code Issues 7 Releases Wiki Activity

Debug: draw rects as 4 GPU-accelerated lines.

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GitOrigin-RevId: 3286d0476b5032d785f74191609db4fbd768433c
This commit is contained in:
Colin McMillen 2020-02-15 16:31:59 -05:00
parent 48a9297a57
commit 1ffe1444b2
2 changed files with 16 additions and 43 deletions
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41
Shared/Debug.cs
View File

@ -27,20 +27,16 @@ namespace SemiColinGames {
}
public static bool Enabled = true;
// Lines in excess of MAX_LINES get dropped on the floor.
const int MAX_LINES = 1000;
const int MAX_LINE_VERTICES = MAX_LINES * 2;
// This is a LinkedList instead of a List because SetFpsText() adds to its front.
static readonly LinkedList<string> toasts = new LinkedList<string>();
static readonly List<DebugRect> rects = new List<DebugRect>();
// Lines in excess of MAX_LINES get dropped on the floor.
const int MAX_LINES = 2000;
const int MAX_LINE_VERTICES = MAX_LINES * 2;
static int lineIdx = 0;
static readonly VertexPositionColor[] lineVertices = new VertexPositionColor[MAX_LINE_VERTICES];
static VertexBuffer vertexBuffer;
static Texture2D whiteTexture;
public static void Initialize(GraphicsDevice graphics, Texture2D white) {
whiteTexture = white;
public static void Initialize(GraphicsDevice graphics) {
vertexBuffer = new VertexBuffer(
graphics, typeof(VertexPositionColor), MAX_LINE_VERTICES, BufferUsage.WriteOnly);
}
@ -56,7 +52,6 @@ namespace SemiColinGames {
public static void Clear(bool paused) {
toasts.Clear();
if (!paused) {
rects.Clear();
lineIdx = 0;
}
}
@ -71,7 +66,10 @@ namespace SemiColinGames {
}
public static void AddRect(Rectangle rect, Color color) {
rects.Add(new DebugRect(rect, color));
AddLine(rect.Left, rect.Top, rect.Right, rect.Top, color);
AddLine(rect.Right, rect.Top, rect.Right, rect.Bottom, color);
AddLine(rect.Right, rect.Bottom, rect.Left, rect.Bottom, color);
AddLine(rect.Left, rect.Bottom, rect.Left, rect.Top, color);
}
public static void AddRect(AABB box, Color color) {
@ -109,31 +107,14 @@ namespace SemiColinGames {
}
}
public static void Draw(
SpriteBatch spriteBatch, GraphicsDevice graphics, BasicEffect lightingEffect) {
public static void Draw(GraphicsDevice graphics, BasicEffect lightingEffect) {
if (!Enabled) {
return;
}
// Draw rects.
foreach (var debugRect in rects) {
var rect = debugRect.Rect;
var color = debugRect.Color;
// top side
spriteBatch.Draw(
whiteTexture, new Rectangle(rect.Left, rect.Top, rect.Width, 1), color);
// bottom side
spriteBatch.Draw(
whiteTexture, new Rectangle(rect.Left, rect.Bottom - 1, rect.Width, 1), color);
// left side
spriteBatch.Draw(
whiteTexture, new Rectangle(rect.Left, rect.Top, 1, rect.Height), color);
// right side
spriteBatch.Draw(
whiteTexture, new Rectangle(rect.Right - 1, rect.Top, 1, rect.Height), color);
if (lineIdx == 0) {
return;
}
// Draw lines.
graphics.SetVertexBuffer(vertexBuffer);
vertexBuffer.SetData(lineVertices);
foreach (EffectPass pass in lightingEffect.CurrentTechnique.Passes) {

18
Shared/SneakGame.cs
View File

@ -33,7 +33,6 @@ namespace SemiColinGames {
int framesToSuppress = 2;
Texture2D grasslandBg1;
Texture2D grasslandBg2;
Texture2D whiteTexture;
Player player;
World world;
@ -57,6 +56,8 @@ namespace SemiColinGames {
display.Initialize(Window, graphics);
display.SetFullScreen(fullScreen);
Debug.Initialize(GraphicsDevice);
sceneTarget = new RenderTarget2D(
GraphicsDevice, camera.Width, camera.Height, false /* mipmap */,
GraphicsDevice.PresentationParameters.BackBufferFormat, DepthFormat.Depth24);
@ -79,6 +80,7 @@ namespace SemiColinGames {
// Called once per game. Loads all game content.
protected override void LoadContent() {
base.LoadContent();
spriteBatch = new SpriteBatch(GraphicsDevice);
font = Content.Load<SpriteFont>("font");
@ -87,20 +89,13 @@ namespace SemiColinGames {
linesOfSight = new LinesOfSight(GraphicsDevice);
grasslandBg1 = Content.Load<Texture2D>("grassland_bg1");
grasslandBg2 = Content.Load<Texture2D>("grassland_bg2");
whiteTexture = new Texture2D(GraphicsDevice, 1, 1);
whiteTexture.SetData(new Color[] { Color.White });
Debug.Initialize(GraphicsDevice, whiteTexture);
}
// Called once per game. Unloads all game content.
protected override void UnloadContent() {
whiteTexture.Dispose();
base.UnloadContent();
updateTimer.DumpStats();
drawTimer.DumpStats();
base.UnloadContent();
}
// Updates the game world.
@ -193,10 +188,7 @@ namespace SemiColinGames {
linesOfSight.Draw(player, world.CollisionTargets, GraphicsDevice, lightingEffect);
// Draw debug rects & lines on top.
spriteBatch.Begin(
SpriteSortMode.Deferred, null, SamplerState.LinearWrap, null, null, null, transform);
Debug.Draw(spriteBatch, GraphicsDevice, lightingEffect);
spriteBatch.End();
Debug.Draw(GraphicsDevice, lightingEffect);
// Draw sceneTarget to screen.
GraphicsDevice.SetRenderTarget(null);