public void DrawCircle(SpriteReference sprite, SamplerState samplerState, Vector2 center, int precision, float angleStart, float angleEnd, float radius, float texOffset, float texPrecision, float start, float end, ColorMatrix color, BlendState blend)
{
if (start == end)
{
return;
}
SetupColorMatrix(color, WorldTransform, Projection);
PrimitiveBatch.Begin(PrimitiveType.TriangleStrip, texture: sprite?.Texture ?? Pixel, blendState: blend, rasterizerState: RasterizerState, samplerState: samplerState, transform: WorldTransform, projection: Projection, effect: Shader);
for (int i = 0; i < precision; i++)
{
float angleSlide = (float)i / (precision - 1);
Vector2 offset = Util.AngleToVector(MathHelper.Lerp(angleStart, angleEnd, angleSlide));
var inside = center;// + offset * radius * MathHelper.Clamp(start, 0, 1);
var outside = center + offset * radius * MathHelper.Clamp(end, 0, 1);
var texHorizontal = texPrecision * angleSlide + texOffset;
var texInside = 1 - Util.ReverseLerp(MathHelper.Clamp(0, 0, 1), start, end);
var texOutside = 1 - Util.ReverseLerp(MathHelper.Clamp(end, 0, 1), start, end);
PrimitiveBatch.AddVertex(new VertexPositionColorTexture(new Vector3(inside, 0), Color.White, new Vector2(texHorizontal, texInside)));
PrimitiveBatch.AddVertex(new VertexPositionColorTexture(new Vector3(outside, 0), Color.White, new Vector2(texHorizontal, texOutside)));
}
PrimitiveBatch.End();
}
private void DrawGround()
{
var grass = SpriteLoader.Instance.AddSprite("content/title_grass");
float precision = 50;
float skewAmount = 0.1f * 0;
Matrix skew = skew = new Matrix(
1, 0, 0, 0,
skewAmount, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1
);
Matrix idiotRotate = Matrix.CreateRotationX(0.01f * Frame) * Matrix.CreateRotationY(0.03f * Frame) * Matrix.CreateRotationZ(0.07f * Frame);
GroundTransform = Matrix.CreateRotationY(-MathHelper.PiOver2) * skew * Matrix.CreateScale(Viewport.Width * 0.7f, 300, 1) * Matrix.CreateTranslation(Viewport.Width * 0.55f, Viewport.Height, 0);
SetupLight(new Vector3(0, 3, 2), GroundTransform * WorldTransform, Projection);
FloorBatch.Begin(PrimitiveType.TriangleList, texture: GrassMap, blendState: BlendState.Opaque, rasterizerState: RasterizerState.CullNone, samplerState: SamplerState.PointWrap, transform: GroundTransform * WorldTransform, projection: Projection, effect: ShaderLight);
float alphaOffset = +MathHelper.PiOver2;
float betaOffset = 0;
float precisionX = precision / 2;
float precisionY = precision / 2;
for (int i = 0; i < precisionX; i++)
{
float alphaMin = alphaOffset + i * MathHelper.TwoPi / precision;
float alphaMax = alphaOffset + (i + 1) * MathHelper.TwoPi / precision;
float uMin = i / precisionX;
float uMax = (i + 1) / precisionX;
float xyMin = (float)Math.Cos(alphaMin);
float xyMax = (float)Math.Cos(alphaMax);
float zMin = (float)Math.Sin(alphaMin);
float zMax = (float)Math.Sin(alphaMax);
for (int j = 0; j < precisionY; j++)
{
float betaMin = betaOffset + j * MathHelper.TwoPi / precision;
float betaMax = betaOffset + (j + 1) * MathHelper.TwoPi / precision;
float vMin = j / precisionY;
float vMax = (j + 1) / precisionY;
Vector3 a = new Vector3(xyMin * (float)Math.Cos(betaMin), xyMin * (float)Math.Sin(betaMin), zMin);
Vector3 b = new Vector3(xyMin * (float)Math.Cos(betaMax), xyMin * (float)Math.Sin(betaMax), zMin);
Vector3 c = new Vector3(xyMax * (float)Math.Cos(betaMin), xyMax * (float)Math.Sin(betaMin), zMax);
Vector3 d = new Vector3(xyMax * (float)Math.Cos(betaMax), xyMax * (float)Math.Sin(betaMax), zMax);
FloorBatch.AddVertex(new VertexPositionNormalTexture(a, a, new Vector2(uMin, vMin)));
FloorBatch.AddVertex(new VertexPositionNormalTexture(b, b, new Vector2(uMin, vMax)));
FloorBatch.AddVertex(new VertexPositionNormalTexture(c, c, new Vector2(uMax, vMin)));
FloorBatch.AddVertex(new VertexPositionNormalTexture(b, b, new Vector2(uMin, vMax)));
FloorBatch.AddVertex(new VertexPositionNormalTexture(d, d, new Vector2(uMax, vMax)));
FloorBatch.AddVertex(new VertexPositionNormalTexture(c, c, new Vector2(uMax, vMin)));
}
}
FloorBatch.End();
}
public void DrawLine(SpriteReference sprite, Vector2 pos1, Vector2 pos2, float widthMod, float lengthMod, float offset, ColorMatrix color, BlendState blend)
{
var delta = pos2 - pos1;
var dist = delta.Length();
var side = (delta / dist).TurnLeft();
var width = sprite.Height;
//SetupNormal(WorldTransform, Projection);
SetupColorMatrix(color, WorldTransform, Projection);
PrimitiveBatch.Begin(PrimitiveType.TriangleStrip, texture: sprite.Texture, blendState: blend, rasterizerState: RasterizerState.CullNone, samplerState: SamplerState.PointWrap, transform: WorldTransform, projection: Projection, effect: Shader);
PrimitiveBatch.AddVertex(new VertexPositionColorTexture(new Vector3(pos1 + side * width * widthMod / 2, 0), Color.White, new Vector2(-offset / sprite.Width, 1)));
PrimitiveBatch.AddVertex(new VertexPositionColorTexture(new Vector3(pos1 - side * width * widthMod / 2, 0), Color.White, new Vector2(-offset / sprite.Width, 0)));
PrimitiveBatch.AddVertex(new VertexPositionColorTexture(new Vector3(pos2 + side * width * widthMod / 2, 0), Color.White, new Vector2((dist * lengthMod - offset) / sprite.Width, 1)));
PrimitiveBatch.AddVertex(new VertexPositionColorTexture(new Vector3(pos2 - side * width * widthMod / 2, 0), Color.White, new Vector2((dist * lengthMod - offset) / sprite.Width, 0)));
PrimitiveBatch.End();
}
public void DrawGrappleLine(Vector2 start, Vector2 end, float waveAmplitude, float waveOffset, float waveFrequency, int precision, LerpHelper.Delegate lerp, Color color, BlendState blend)
{
SetupColorMatrix(ColorMatrix.Identity, WorldTransform, Projection);
PrimitiveBatch.Begin(PrimitiveType.LineStrip, texture: Pixel, blendState: blend, rasterizerState: RasterizerState, samplerState: SamplerState.PointWrap, transform: WorldTransform, projection: Projection, effect: Shader);
var delta = end - start;
var lateral = Vector2.Normalize(new Vector2(-delta.Y, delta.X));
for (int i = 0; i < precision; i++)
{
float slide = (float)i / (precision - 1);
float posSlide = (float)lerp(0, 1, slide);
var offset = lateral * (float)Math.Sin((slide * waveFrequency + waveOffset) * MathHelper.TwoPi) * (float)Math.Sin(MathHelper.Pi * slide) * waveAmplitude;
var pos = start + posSlide * delta + offset;
PrimitiveBatch.AddVertex(new VertexPositionColorTexture(new Vector3(pos, 0), color, new Vector2(0, 0)));
}
PrimitiveBatch.End();
}
public void DrawMissileCurve(SpriteReference sprite, Func <float, Vector2> curve, int precision, Func <float, float> thickness, float start, float end, ColorMatrix color, BlendState blend)
{
List <Vector2> points = new List <Vector2>();
List <float> lengths = new List <float>();
List <Vector2> pivots = new List <Vector2>();
LineSet line = new LineSet();
for (int i = 0; i <= precision; i++)
{
line.AddPoint(curve((float)i / precision));
}
line.GetBeam(start, end, points, pivots, lengths);
var dist = line.TotalDistance;
var width = sprite.Height;
SetupColorMatrix(color, WorldTransform, Projection);
PrimitiveBatch.Begin(PrimitiveType.TriangleStrip, texture: sprite.Texture, blendState: blend, rasterizerState: RasterizerState.CullNone, samplerState: SamplerState.PointWrap, transform: WorldTransform, projection: Projection, effect: Shader);
for (int i = 0; i < points.Count; i++)
{
var point = points[i];
var side = pivots[i];
var len = lengths[i];
var slide = len / dist;
var tex = (slide - start) / (end - start);
var widthMod = thickness(slide);
PrimitiveBatch.AddVertex(new VertexPositionColorTexture(new Vector3(point + side * width * widthMod / 2, 0), Color.White, new Vector2(tex, 1)));
PrimitiveBatch.AddVertex(new VertexPositionColorTexture(new Vector3(point - side * width * widthMod / 2, 0), Color.White, new Vector2(tex, 0)));
}
PrimitiveBatch.End();
}