1
你好我正在使用c＃和OpenTK。OpenTK Y是完全倒转的
由于某种原因，我使用鼠标时我的y完全倒置，我需要设置y负才能正确，但是当我渲染地图时，地图是倒置的，我一直在试图找到问题，但找不到是什么使y被倒置。
如果问题不在下面的代码中，我会让c＃项目的链接。
Game.cs在上渲染，负载或更新funcions吃
using OpenTK;
using OpenTK.Graphics.OpenGL;
using System;
using System.Drawing;
namespace PlatformGame
{
class Game : GameWindow
{
public static int GridSize = 32, TileSize = 1024;
Texture2D Texture, TileSet;
Texture2D Water;
Texture2D Grass;
View view;
Level level;
public Game(int width,int height)
: base(width,height)
{
GL.Enable(EnableCap.Texture2D);
view = new View(Vector2.Zero, 1.0, 0.0);
Input.Initialize(this);
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
Water = ContentPipe.LoadTexture("Water.png");
Grass = ContentPipe.LoadTexture("Grass.png");
TileSet = ContentPipe.LoadTexture("Tiles.png");
level = new Level("Content/Level.tmx");
}
protected override void OnUpdateFrame(FrameEventArgs e)
{
base.OnUpdateFrame(e);
if(Input.MousePress(OpenTK.Input.MouseButton.Left))
{
Vector2 pos = new Vector2(Mouse.X, Mouse.Y) - new Vector2(Width, Height)/2f;
pos = view.ToWorld(pos);
view.SetPosition(pos, View.TweenType.QuarticOut, 15);
}
if (Input.Keydown(OpenTK.Input.Key.Right))
{
view.SetPosition(view.PositionGoTo + new Vector2(5, 0), View.TweenType.QuarticOut, 15);
}
if (Input.Keydown(OpenTK.Input.Key.Left))
{
view.SetPosition(view.PositionGoTo + new Vector2(-5, 0), View.TweenType.QuarticOut, 15);
}
if (Input.Keydown(OpenTK.Input.Key.Up))
{
view.SetPosition(view.PositionGoTo + new Vector2(0, 5), View.TweenType.QuarticOut, 15);
}
if (Input.Keydown(OpenTK.Input.Key.Down))
{
view.SetPosition(view.PositionGoTo + new Vector2(0, -5), View.TweenType.QuarticOut, 15);
}
view.Update();
Input.Update();
}
protected override void OnRenderFrame(FrameEventArgs e)
{
base.OnRenderFrame(e);
GL.Clear(ClearBufferMask.ColorBufferBit); //Clear Window
GL.ClearColor(Color.CornflowerBlue); //Set Windo background to Corn flower blue
SpriteBatch.Begin(Width, Height);
view.ApplyTransform();
for (int x = 0; x < level.Width; x++)
{
for (int y = 0; y < level.Height; y++)
{
RectangleF Source = new RectangleF(0, 0, 0, 0);
switch (level[x,y].Type)
{
case BlockType.Ladder:
Source = new RectangleF(0 * TileSize, 2 * TileSize, TileSize, TileSize);
break;
case BlockType.Water:
Source = new RectangleF(0 * TileSize, 0 * TileSize, TileSize, TileSize);
break;
case BlockType.Stone:
Source = new RectangleF(0 * TileSize, 1 * TileSize, TileSize, TileSize);
break;
case BlockType.Platform:
Source = new RectangleF(1 * TileSize, 1 * TileSize, TileSize, TileSize);
break;
case BlockType.Dirt:
Source = new RectangleF(2 * TileSize, 0 * TileSize, TileSize, TileSize);
break;
case BlockType.Grass:
Source = new RectangleF(1 * TileSize, 0 * TileSize, TileSize, TileSize);
break;
case BlockType.LadderPlatform:
Source = new RectangleF(2 * TileSize, 1 * TileSize, TileSize, TileSize);
break;
}
SpriteBatch.Draw(TileSet, new Vector2(x * GridSize, y * GridSize), new Vector2((float)GridSize/TileSize), Color.Transparent, Vector2.Zero, Source);
}
}
SwapBuffers();
}
}
}
View.cs什么控制相机
using System;
using System.Drawing;
using OpenTK;
using OpenTK.Graphics.OpenGL;
namespace PlatformGame
{
class View
{
public enum TweenType
{
Instante,
Linear,
QuadraticInOut,
CubicInOut,
QuarticOut,
}
private Vector2 position;
/// <summary>
/// In radians, + = clockwise
/// </summary>
public double rotation;
/// <summary>
/// 1 = no zoom
/// 2 = 2x zoom
/// </summary>
public double zoom;
private Vector2 PositionGoto, PositionFrom;
private TweenType tweenType;
private int CurrentStep, TweenStep;
public Vector2 Position
{
get
{
return position;
}
}
public Vector2 PositionGoTo
{
get { return PositionGoto; }
}
public Vector2 ToWorld(Vector2 input)
{
input /= (float)zoom;
Vector2 dX = new Vector2((float)Math.Cos(rotation),(float)Math.Sin(rotation));
Vector2 dY = new Vector2((float)Math.Cos(rotation + MathHelper.PiOver2), (float)Math.Sin(rotation + -MathHelper.PiOver2));
return (position + dX * input.X + dY * input.Y);
}
public View(Vector2 StartPosition,double StartZoom = 1.0, double StartRotation = 0.0)
{
position = StartPosition;
zoom = StartZoom;
rotation = StartRotation;
}
public void Update()
{
if (CurrentStep < TweenStep)
{
CurrentStep++;
switch (tweenType)
{
case TweenType.Linear:
position = PositionFrom + (PositionGoto - PositionFrom) * GetLinear((float)CurrentStep/TweenStep);
break;
case TweenType.QuadraticInOut:
position = PositionFrom + (PositionGoto - PositionFrom) * GetQuadraticInOut((float)CurrentStep/TweenStep);
break;
case TweenType.CubicInOut:
position = PositionFrom + (PositionGoto - PositionFrom) * GetCubicInOut((float)CurrentStep/TweenStep);
break;
case TweenType.QuarticOut:
position = PositionFrom + (PositionGoto - PositionFrom) * GetQuarticOut((float)CurrentStep/TweenStep);
break;
}
}
else
{
position = PositionGoto;
}
}
public void SetPosition(Vector2 NewPosition)
{
position = NewPosition;
PositionFrom = NewPosition;
PositionGoto = NewPosition;
tweenType = TweenType.Instante;
CurrentStep = 0;
TweenStep = 0;
}
public void SetPosition(Vector2 NewPosition, TweenType type, int NumSteps)
{
PositionFrom = position;
position = NewPosition;
PositionGoto = NewPosition;
tweenType = type;
CurrentStep = 0;
TweenStep = NumSteps;
}
public float GetLinear(float t)
{
return t;
}
public float GetQuadraticInOut(float t)
{
return (t * t)/((2 * t * t) - (2 * t) + 1);
}
public float GetCubicInOut(float t)
{
return (t * t * t)/((3 * t * t) - (3 * t) + 1);
}
public float GetQuarticOut(float t)
{
return -((t - 1) * (t - 1) * (t - 1) * (t - 1)) + 1;
}
public void ApplyTransform()
{
Matrix4 transfotm = Matrix4.Identity;
transfotm = Matrix4.Mult(transfotm, Matrix4.CreateTranslation(-position.X, -position.Y, 0));
transfotm = Matrix4.Mult(transfotm, Matrix4.CreateRotationZ(-(float)rotation));
transfotm = Matrix4.Mult(transfotm, Matrix4.CreateScale((float)zoom, (float)zoom, 1.0f));
GL.MultMatrix(ref transfotm);
}
}
}
项目Link
什么哟由y意味着反转？鼠标坐标从0/0开始在左上角，然后转到screen.width/screen.height（右下角）。 opentk的起源在左下角。 y在设计上是倒置的。 –
@ThomasVoß，但地图由于某种原因，它倒过来 – Pedro