//画面
void DrawPlane(int p1_index, int p2_index, int p3_index, int p4_index)
{
HVertex p1 = mesh[p1_index];
HVertex p2 = mesh[p2_index];
HVertex p3 = mesh[p3_index];
HVertex p4 = mesh[p4_index];
//纹理绘制到这个面上面
p1.uv.u = 0;
p1.uv.v = 0;
p2.uv.u = 0;
p2.uv.v = 1;
p3.uv.u = 1;
p3.uv.v = 1;
p4.uv.u = 1;
p4.uv.v = 0;
HTriangle T1 = new HTriangle();
T1.p1InObjectSpace = p1;
T1.p2InObjectSpace = p2;
T1.p3InObjectSpace = p3;
DrawTriangle(T1);
HTriangle T2 = new HTriangle();
T2.p1InObjectSpace = p3;
T2.p2InObjectSpace = p4;
T2.p3InObjectSpace = p1;
DrawTriangle(T2);
}
//插值屏幕坐标的顶点信息
public HVertex InterpVertex(HVertex vertex, float t)
{
HVertex HVertexRet = new HVertex();
HVertexRet.pos = pos.InterpVec(vertex.pos, t);
HVertexRet.uv.u = MathHelper.Interp(uv.u, vertex.uv.u, t);
HVertexRet.uv.v = MathHelper.Interp(uv.v, vertex.uv.v, t);
HVertexRet.color.r = MathHelper.Interp(color.r, vertex.color.r, t);
HVertexRet.color.g = MathHelper.Interp(color.g, vertex.color.g, t);
HVertexRet.color.b = MathHelper.Interp(color.b, vertex.color.b, t);
HVertexRet.rhw = MathHelper.Interp(rhw, vertex.rhw, t);
return(HVertexRet);
}
//顶点加法
public HVertex Add(HVertex vertex)
{
HVertex HVertexRet = new HVertex();
HVertexRet.pos.x = pos.x + vertex.pos.x;
HVertexRet.pos.y = pos.y + vertex.pos.y;
HVertexRet.pos.z = pos.z + vertex.pos.z;
HVertexRet.pos.w = pos.w + vertex.pos.w;
HVertexRet.rhw = rhw + vertex.rhw;
HVertexRet.uv.u = uv.u + vertex.uv.u;
HVertexRet.uv.v = uv.v + vertex.uv.v;
HVertexRet.color.r = color.r + vertex.color.r;
HVertexRet.color.g = color.g + vertex.color.g;
HVertexRet.color.b = color.b + vertex.color.b;
return(HVertexRet);
}
public HVertex Copy()
{
HVertex HVertexRet = new HVertex();
HVertexRet.pos.x = pos.x;
HVertexRet.pos.y = pos.y;
HVertexRet.pos.z = pos.z;
HVertexRet.pos.w = pos.w;
HVertexRet.uv.u = uv.u;
HVertexRet.uv.v = uv.v;
HVertexRet.color.r = color.r;
HVertexRet.color.g = color.g;
HVertexRet.color.b = color.b;
HVertexRet.color.a = color.a;
HVertexRet.rhw = rhw;
return(HVertexRet);
}
public static void ChangeCaret(float left, float right, float top, float down, Color32 color)
{
HVertex[] hv = new HVertex[4];
hv[0].position.x = left;
hv[0].position.y = down;
hv[0].color = color;
hv[1].position.x = right;
hv[1].position.y = down;
hv[1].color = color;
hv[2].position.x = left;
hv[2].position.y = top;
hv[2].color = color;
hv[3].position.x = right;
hv[3].position.y = top;
hv[3].color = color;
Caret.vertices = hv;
Caret.tris = HGUIMesh.Rectangle;
CaretStyle = 1;
}
// Step 1/d 的步伐
public HVertex Step(HVertex vertex, float d)
{
HVertex HVertexRet = new HVertex();
if (d == 0.0f)
{
return(HVertexRet);
}
float inv = 1.0f / d;
HVertexRet.pos.x = (vertex.pos.x - pos.x) * inv;
HVertexRet.pos.y = (vertex.pos.y - pos.y) * inv;
HVertexRet.pos.z = (vertex.pos.z - pos.z) * inv;
HVertexRet.pos.w = (vertex.pos.w - pos.w) * inv;
HVertexRet.uv.u = (vertex.uv.u - uv.u) * inv;
HVertexRet.uv.v = (vertex.uv.v - uv.v) * inv;
HVertexRet.color.r = (vertex.color.r - color.r) * inv;
HVertexRet.color.g = (vertex.color.g - color.g) * inv;
HVertexRet.color.b = (vertex.color.b - color.b) * inv;
HVertexRet.rhw = (vertex.rhw - rhw) * inv;
return(HVertexRet);
}
/// <summary>
/// 将网格线的顶点填充到ui的顶点
/// </summary>
/// <param name="vectors">顶点</param>
/// <param name="vert">UI顶点</param>
/// <param name="tris">三角形</param>
/// <param name="color">颜色</param>
public static void GetLineVert(Vector3[] vectors, List <HVertex> vert, List <int> tris, Color color)
{
int Start = vert.Count;
for (int i = 0; i < vectors.Length; i++)
{
HVertex vertex = new HVertex();
vertex.position = vectors[i];
vertex.color = color;
vert.Add(vertex);
}
int len = vectors.Length / 4;
for (int i = 0; i < len; i++)
{
int index = i * 4 + Start;
tris.Add(index);
tris.Add(index + 1);
tris.Add(index + 3);
tris.Add(index + 3);
tris.Add(index + 1);
tris.Add(index + 2);
}
}
public int CalculateTrap(List <HTrapezoid> trapezoid)
{
HVertex p;
float k, x;
//顶点排序
if (p1InScreenSpace.pos.y > p2InScreenSpace.pos.y)
{
p = p1InScreenSpace;
p1InScreenSpace = p2InScreenSpace;
p2InScreenSpace = p;
}
if (p1InScreenSpace.pos.y > p3InScreenSpace.pos.y)
{
p = p1InScreenSpace;
p1InScreenSpace = p3InScreenSpace;
p3InScreenSpace = p;
}
if (p2InScreenSpace.pos.y > p3InScreenSpace.pos.y)
{
p = p2InScreenSpace;
p2InScreenSpace = p3InScreenSpace;
p3InScreenSpace = p;
}
if (p1InScreenSpace.pos.y == p2InScreenSpace.pos.y && p1InScreenSpace.pos.y == p3InScreenSpace.pos.y)
{
return(0);
}
if (p1InScreenSpace.pos.x == p2InScreenSpace.pos.x && p1InScreenSpace.pos.x == p3InScreenSpace.pos.x)
{
return(0);
}
if (p1InScreenSpace.pos.y == p2InScreenSpace.pos.y) // triangle down
{
if (p1InScreenSpace.pos.x > p2InScreenSpace.pos.x)
{
p = p1InScreenSpace;
p1InScreenSpace = p2InScreenSpace;
p2InScreenSpace = p;
}
trapezoid[0].top = p1InScreenSpace.pos.y;
trapezoid[0].bottom = p3InScreenSpace.pos.y;
trapezoid[0].left.v1 = p1InScreenSpace;
trapezoid[0].left.v2 = p3InScreenSpace;
trapezoid[0].right.v1 = p2InScreenSpace;
trapezoid[0].right.v2 = p3InScreenSpace;
return((trapezoid[0].top < trapezoid[0].bottom) ? 1 : 0);
}
if (p2InScreenSpace.pos.y == p3InScreenSpace.pos.y) // triangle up
{
if (p2InScreenSpace.pos.x > p3InScreenSpace.pos.x)
{
p = p2InScreenSpace;
p2InScreenSpace = p3InScreenSpace;
p3InScreenSpace = p;
}
trapezoid[0].top = p1InScreenSpace.pos.y;
trapezoid[0].bottom = p3InScreenSpace.pos.y;
trapezoid[0].left.v1 = p1InScreenSpace;
trapezoid[0].left.v2 = p2InScreenSpace;
trapezoid[0].right.v1 = p1InScreenSpace;
trapezoid[0].right.v2 = p3InScreenSpace;
return((trapezoid[0].top < trapezoid[0].bottom) ? 1 : 0);
}
trapezoid[0].top = p1InScreenSpace.pos.y;
trapezoid[0].bottom = p2InScreenSpace.pos.y;
trapezoid[1].top = p2InScreenSpace.pos.y;
trapezoid[1].bottom = p3InScreenSpace.pos.y;
k = (p3InScreenSpace.pos.y - p1InScreenSpace.pos.y) / (p2InScreenSpace.pos.y - p1InScreenSpace.pos.y);
x = p1InScreenSpace.pos.x + (p2InScreenSpace.pos.x - p1InScreenSpace.pos.x) * k;
if (x <= p3InScreenSpace.pos.x) // triangle left
{
trapezoid[0].left.v1 = p1InScreenSpace;
trapezoid[0].left.v2 = p2InScreenSpace;
trapezoid[0].right.v1 = p1InScreenSpace;
trapezoid[0].right.v2 = p3InScreenSpace;
trapezoid[1].left.v1 = p2InScreenSpace;
trapezoid[1].left.v2 = p3InScreenSpace;
trapezoid[1].right.v1 = p1InScreenSpace;
trapezoid[1].right.v2 = p3InScreenSpace;
}
else // triangle right
{
trapezoid[0].left.v1 = p1InScreenSpace;
trapezoid[0].left.v2 = p3InScreenSpace;
trapezoid[0].right.v1 = p1InScreenSpace;
trapezoid[0].right.v2 = p2InScreenSpace;
trapezoid[1].left.v1 = p1InScreenSpace;
trapezoid[1].left.v2 = p3InScreenSpace;
trapezoid[1].right.v1 = p2InScreenSpace;
trapezoid[1].right.v2 = p3InScreenSpace;
}
return(2);
}
/// <summary>
/// 获取选中区域的网格
/// </summary>
/// <param name="tri">三角形列表</param>
/// <param name="vert">顶点列表</param>
/// <param name="color">填充颜色</param>
/// <param name="start">开始按压位置信息</param>
/// <param name="end">结束按压位置信息</param>
public void GetSelectArea(List <int> tri, List <HVertex> vert, ref Color32 color, ref PressInfo start, ref PressInfo end)
{
int sr = start.Row;
int er = end.Row + 1;
int st = 0;
int c = lines.Count;
if (c > er)
{
c = er;
}
if (sr < 0)
{
sr = 0;
}
for (int i = sr; i < c; i++)
{
LineInfo info = lines[i];
int ls = info.startCharIdx;
if (ls > end.Index)
{
break;
}
int le = lines[i].endIdx;
if (le <= start.Index)
{
continue;
}
int si = start.Index;
int ei = end.Index;
float left;
if (si < ls)
{
left = chars[ls].cursorPos.x;
}
else
{
left = chars[si].cursorPos.x;
}
float right;
if (ei > le)
{
right = chars[le].cursorPos.x + chars[le].charWidth;
}
else
{
right = chars[ei].cursorPos.x;
}
float top = info.topY;
float down = info.endY;
var v = new HVertex();
v.position.x = left;
v.position.y = down;
v.color = color;
vert.Add(v);
v.position.x = right;
v.position.y = down;
v.color = color;
vert.Add(v);
v.position.x = left;
v.position.y = top;
v.color = color;
vert.Add(v);
v.position.x = right;
v.position.y = top;
v.color = color;
vert.Add(v);
tri.Add(st);
tri.Add(st + 2);
tri.Add(st + 3);
tri.Add(st);
tri.Add(st + 3);
tri.Add(st + 1);
st += 4;
}
}
/// <summary>
/// 获取光标的显示网格
/// </summary>
/// <param name="tri">三角形列表</param>
/// <param name="vert">顶点列表</param>
/// <param name="color">填充颜色</param>
/// <param name="start">按压信息</param>
public void GetPointer(List <int> tri, List <HVertex> vert, ref Color32 color, ref PressInfo start)
{
if (start.Row < 0)
{
return;
}
if (start.Row >= lines.Count)
{
return;
}
int index = start.Index;
if (index < 0)
{
return;
}
if (index >= chars.Count)
{
return;
}
int row = start.Row;
for (int i = 0; i < lines.Count; i++)
{
if (index <= lines[i].endIdx)
{
row = i;
break;
}
}
float top = lines[row].topY;
float down = lines[row].endY;
float p;
if (index > lines[row].endIdx)
{
index--;
if (index < 0)
{
index = 0;
}
p = chars[index].cursorPos.x + chars[index].charWidth;
}
else
{
p = chars[index].cursorPos.x;
}
float left = p - 1;
float right = p + 1;
var v = new HVertex();
v.position.x = left;
v.position.y = down;
v.color = color;
vert.Add(v);
v.position.x = right;
v.position.y = down;
v.color = color;
vert.Add(v);
v.position.x = left;
v.position.y = top;
v.color = color;
vert.Add(v);
v.position.x = right;
v.position.y = top;
v.color = color;
vert.Add(v);
tri.Add(0);
tri.Add(2);
tri.Add(3);
tri.Add(0);
tri.Add(3);
tri.Add(1);
}
protected void GetSelectArea(Color32 color, List <int> tri, List <HVertex> vert)
{
if (TextCom == null)
{
return;
}
tri.Clear();
vert.Clear();
var tl = TextCom.uILines;
int len = tl.Length;
var tc = TextCom.uIChars;
for (int i = 0; i < ShowRow; i++)
{
int l = i + ShowStart;
if (IsSelectLine(l))
{
var range = GetSelectLineRange(l);
bool t = false;
if (range.y == lines[l].Count)
{
t = true;
range.y--;
}
int s = tl[i].startCharIdx;
float lx = tc[range.x + s].cursorPos.x;
float rx = tc[range.y + s].cursorPos.x;
if (t)
{
rx += tc[range.y + s].charWidth;
}
float h = tl[i].height;
float top = tl[i].topY;
float down = top - h;
int st = vert.Count;
var v = new HVertex();
v.position.x = lx;
v.position.y = down;
v.color = color;
vert.Add(v);
v.position.x = rx;
v.position.y = down;
v.color = color;
vert.Add(v);
v.position.x = lx;
v.position.y = top;
v.color = color;
vert.Add(v);
v.position.x = rx;
v.position.y = top;
v.color = color;
vert.Add(v);
tri.Add(st);
tri.Add(st + 2);
tri.Add(st + 3);
tri.Add(st);
tri.Add(st + 3);
tri.Add(st + 1);
}
}
}