MrMonopoly/raylib
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Added thickness argument to DrawLine function

Browse Source
This commit is contained in:
ScriptLineStudios 2022-05-01 22:09:14 +02:00
parent 6f044c57ac
commit 5296362f97
2 changed files with 19 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/raylib.h
View File

@ -1155,7 +1155,7 @@ RLAPI void SetShapesTexture(Texture2D texture, Rectangle source); // Set t
// Basic shapes drawing functions
RLAPI void DrawPixel(int posX, int posY, Color color); // Draw a pixel
RLAPI void DrawPixelV(Vector2 position, Color color); // Draw a pixel (Vector version)
RLAPI void DrawLine(int startPosX, int startPosY, int endPosX, int endPosY, Color color); // Draw a line
RLAPI void DrawLine(int startPosX, int startPosY, int endPosX, int endPosY, Color color, float thick); // Draw a line
RLAPI void DrawLineV(Vector2 startPos, Vector2 endPos, Color color); // Draw a line (Vector version)
RLAPI void DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color); // Draw a line defining thickness
RLAPI void DrawLineBezier(Vector2 startPos, Vector2 endPos, float thick, Color color); // Draw a line using cubic-bezier curves in-out

24
src/rshapes.c
View File

@ -122,13 +122,24 @@ void DrawPixelV(Vector2 position, Color color)
}
// Draw a line
void DrawLine(int startPosX, int startPosY, int endPosX, int endPosY, Color color)
void DrawLine(int startPosX, int startPosY, int endPosX, int endPosY, Color color, float thick)
{
rlBegin(RL_LINES);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2i(startPosX, startPosY);
rlVertex2i(endPosX, endPosY);
rlEnd();
Vector2 delta = { endPosX - startPosX, endPosY - startPosY };
float length = sqrtf(delta.x*delta.x + delta.y*delta.y);
if ((length > 0) && (thick > 0))
{
float scale = thick/(2*length);
Vector2 radius = { -scale*delta.y, scale*delta.x };
Vector2 strip[4] = {
{ startPosX - radius.x, startPosY - radius.y },
{ startPosX + radius.x, startPosY + radius.y },
{ endPosX - radius.x, endPosY - radius.y },
{ endPosX + radius.x, endPosY + radius.y }
};
DrawTriangleStrip(strip, 4, color);
}
}
// Draw a line (Vector version)
@ -139,6 +150,7 @@ void DrawLineV(Vector2 startPos, Vector2 endPos, Color color)
rlVertex2f(startPos.x, startPos.y);
rlVertex2f(endPos.x, endPos.y);
rlEnd();
}
// Draw a line defining thickness