ADDED: DrawTriangleStrip()

1 files changed, 34 insertions, 0 deletions

diff --git a/src/shapes.c b/src/shapes.c
index bab8a5a4..190bd4e1 100644
--- a/src/shapes.c
+++ b/src/shapes.c
@@ -1181,6 +1181,8 @@ void DrawRectangleRoundedLines(Rectangle rec, float roundness, int segments, int
 // Draw a triangle
 void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
 {
+    if (rlCheckBufferLimit(4)) rlglDraw();
+    
 #if defined(SUPPORT_QUADS_DRAW_MODE)
     rlEnableTexture(GetShapesTexture().id);
 
@@ -1214,6 +1216,8 @@ void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
 // Draw a triangle using lines
 void DrawTriangleLines(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
 {
+    if (rlCheckBufferLimit(6)) rlglDraw();
+    
     rlBegin(RL_LINES);
         rlColor4ub(color.r, color.g, color.b, color.a);
         rlVertex2f(v1.x, v1.y);
@@ -1258,6 +1262,36 @@ void DrawTriangleFan(Vector2 *points, int pointsCount, Color color)
     }
 }
 
+// Draw a triangle strip defined by points
+// NOTE: Every new point connects with previous two
+void DrawTriangleStrip(Vector2 *points, int pointsCount, Color color)
+{
+    if (pointsCount >= 3)
+    {
+        if (rlCheckBufferLimit(pointsCount)) rlglDraw();
+
+        rlBegin(RL_TRIANGLES);
+            rlColor4ub(color.r, color.g, color.b, color.a);
+
+            for (int i = 2; i < pointsCount; i++)
+            {
+                if ((i%2) == 0)
+                {
+                    rlVertex2f(points[i].x, points[i].y);
+                    rlVertex2f(points[i - 2].x, points[i - 2].y);
+                    rlVertex2f(points[i - 1].x, points[i - 1].y);
+                }
+                else
+                {
+                    rlVertex2f(points[i].x, points[i].y);
+                    rlVertex2f(points[i - 1].x, points[i - 1].y);
+                    rlVertex2f(points[i - 2].x, points[i - 2].y);
+                }
+            }
+        rlEnd();
+    }
+}
+
 // Draw a regular polygon of n sides (Vector version)
 void DrawPoly(Vector2 center, int sides, float radius, float rotation, Color color)
 {