202 lines
4.0 KiB
C++
202 lines
4.0 KiB
C++
#include "pch.h"
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#include "TLine.h"
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#include "TTableLayer.h"
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TLine::TLine(TCollisionComponent* collCmp, char* activeFlag, unsigned int collisionGroup, float x0, float y0, float x1,
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float y1): TEdgeSegment(collCmp, activeFlag, collisionGroup)
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{
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X0 = x0;
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Y0 = y0;
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X1 = x1;
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Y1 = y1;
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maths::line_init(&Line, x0, y0, x1, y1);
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}
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TLine::TLine(TCollisionComponent* collCmp, char* activeFlag, unsigned int collisionGroup, struct vector_type* start,
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struct vector_type* end) : TEdgeSegment(collCmp, activeFlag, collisionGroup)
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{
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X0 = start->X;
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Y0 = start->Y;
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X1 = end->X;
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Y1 = end->Y;
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maths::line_init(&Line, X0, Y0, X1, Y1);
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}
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void TLine::Offset(float offset)
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{
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float offX = offset * Line.PerpendicularL.X;
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float offY = offset * Line.PerpendicularL.Y;
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X0 += offX;
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Y0 += offY;
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X1 += offX;
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Y1 += offY;
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maths::line_init(&Line, X0, Y0, X1, Y1);
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}
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float TLine::FindCollisionDistance(ray_type* ray)
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{
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return maths::ray_intersect_line(ray, &Line);
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}
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void TLine::EdgeCollision(TBall* ball, float coef)
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{
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CollisionComponent->Collision(
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ball,
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&Line.RayIntersect,
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&Line.PerpendicularL,
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coef,
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this);
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}
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void TLine::place_in_grid()
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{
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auto edgeMan = TTableLayer::edge_manager;
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auto xBox0 = edgeMan->box_x(X0);
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auto yBox0 = edgeMan->box_y(Y0);
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auto xBox1 = edgeMan->box_x(X1);
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auto yBox1 = edgeMan->box_y(Y1);
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int dirX = X0 >= X1 ? -1 : 1;
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int dirY = Y0 >= Y1 ? -1 : 1;
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if (yBox0 == yBox1)
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{
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if (dirX == 1)
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{
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while (xBox0 <= xBox1)
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edgeMan->add_edge_to_box(xBox0++, yBox0, this);
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}
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else
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{
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while (xBox0 >= xBox1)
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edgeMan->add_edge_to_box(xBox0--, yBox0, this);
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}
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}
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else if (xBox0 == xBox1)
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{
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if (dirY == 1)
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{
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if (yBox0 <= yBox1)
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{
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do
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edgeMan->add_edge_to_box(xBox0, yBox0++, this);
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while (yBox0 <= yBox1);
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}
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}
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else if (yBox0 >= yBox1)
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{
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do
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edgeMan->add_edge_to_box(xBox0, yBox0--, this);
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while (yBox0 >= yBox1);
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}
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}
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else
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{
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float yCoord, xCoord;
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int indexX1 = xBox0, indexY1 = yBox0;
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int bresIndexX = xBox0 + 1, bresIndexY = yBox0 + 1;
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auto bresDyDx = (Y0 - Y1) / (X0 - X1);
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auto bresXAdd = Y0 - bresDyDx * X0;
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edgeMan->add_edge_to_box(xBox0, yBox0, this);
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if (dirX == 1)
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{
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if (dirY == 1)
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{
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do
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{
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yCoord = bresIndexY * edgeMan->AdvanceY + edgeMan->Y;
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xCoord = (bresIndexX * edgeMan->AdvanceX + edgeMan->X) * bresDyDx + bresXAdd;
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if (xCoord >= yCoord)
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{
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if (xCoord == yCoord)
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{
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++indexX1;
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++bresIndexX;
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}
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++indexY1;
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++bresIndexY;
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}
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else
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{
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++indexX1;
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++bresIndexX;
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}
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edgeMan->add_edge_to_box(indexX1, indexY1, this);
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}
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while (indexX1 != xBox1 || indexY1 != yBox1);
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}
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else
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{
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do
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{
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yCoord = indexY1 * edgeMan->AdvanceY + edgeMan->Y;
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xCoord = (bresIndexX * edgeMan->AdvanceX + edgeMan->X) * bresDyDx + bresXAdd;
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if (xCoord <= yCoord)
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{
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if (xCoord == yCoord)
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{
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++indexX1;
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++bresIndexX;
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}
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--indexY1;
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}
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else
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{
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++indexX1;
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++bresIndexX;
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}
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edgeMan->add_edge_to_box(indexX1, indexY1, this);
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}
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while (indexX1 != xBox1 || indexY1 != yBox1);
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}
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}
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else
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{
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if (dirY == 1)
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{
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do
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{
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xCoord = bresIndexY * edgeMan->AdvanceY + edgeMan->Y;
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yCoord = (indexX1 * edgeMan->AdvanceX + edgeMan->X) * bresDyDx + bresXAdd;
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if (yCoord >= xCoord)
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{
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if (yCoord == xCoord)
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--indexX1;
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++indexY1;
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++bresIndexY;
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}
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else
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{
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--indexX1;
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}
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edgeMan->add_edge_to_box(indexX1, indexY1, this);
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}
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while (indexX1 != xBox1 || indexY1 != yBox1);
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}
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else
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{
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do
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{
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yCoord = indexY1 * edgeMan->AdvanceY + edgeMan->Y;
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xCoord = (indexX1 * edgeMan->AdvanceX + edgeMan->X) * bresDyDx + bresXAdd;
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if (xCoord <= yCoord)
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{
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if (xCoord == yCoord)
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--indexX1;
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--indexY1;
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}
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else
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{
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--indexX1;
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}
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edgeMan->add_edge_to_box(indexX1, indexY1, this);
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}
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while (indexX1 != xBox1 || indexY1 != yBox1);
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}
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}
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}
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}
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