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path: root/raylib/examples/shapes/shapes_lines_bezier.c
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Diffstat (limited to 'raylib/examples/shapes/shapes_lines_bezier.c')
-rw-r--r--raylib/examples/shapes/shapes_lines_bezier.c41
1 files changed, 22 insertions, 19 deletions
diff --git a/raylib/examples/shapes/shapes_lines_bezier.c b/raylib/examples/shapes/shapes_lines_bezier.c
index f015768..aaad680 100644
--- a/raylib/examples/shapes/shapes_lines_bezier.c
+++ b/raylib/examples/shapes/shapes_lines_bezier.c
@@ -26,11 +26,10 @@ int main(void)
SetConfigFlags(FLAG_MSAA_4X_HINT);
InitWindow(screenWidth, screenHeight, "raylib [shapes] example - cubic-bezier lines");
- Vector2 start = { 0, 0 };
- Vector2 end = { (float)screenWidth, (float)screenHeight };
-
- Vector2 startControl = { 100, 0 };
- Vector2 endControl = { GetScreenWidth() - 100, GetScreenHeight() };
+ Vector2 startPoint = { 30, 30 };
+ Vector2 endPoint = { (float)screenWidth - 30, (float)screenHeight - 30 };
+ bool moveStartPoint = false;
+ bool moveEndPoint = false;
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
@@ -40,15 +39,21 @@ int main(void)
{
// Update
//----------------------------------------------------------------------------------
- if (IsKeyDown(KEY_LEFT_CONTROL))
+ Vector2 mouse = GetMousePosition();
+
+ if (CheckCollisionPointCircle(mouse, startPoint, 10.0f) && IsMouseButtonDown(MOUSE_BUTTON_LEFT)) moveStartPoint = true;
+ else if (CheckCollisionPointCircle(mouse, endPoint, 10.0f) && IsMouseButtonDown(MOUSE_BUTTON_LEFT)) moveEndPoint = true;
+
+ if (moveStartPoint)
{
- if (IsMouseButtonDown(MOUSE_BUTTON_LEFT)) startControl = GetMousePosition();
- else if (IsMouseButtonDown(MOUSE_BUTTON_RIGHT)) endControl = GetMousePosition();
+ startPoint = mouse;
+ if (IsMouseButtonReleased(MOUSE_BUTTON_LEFT)) moveStartPoint = false;
}
- else
+
+ if (moveEndPoint)
{
- if (IsMouseButtonDown(MOUSE_BUTTON_LEFT)) start = GetMousePosition();
- else if (IsMouseButtonDown(MOUSE_BUTTON_RIGHT)) end = GetMousePosition();
+ endPoint = mouse;
+ if (IsMouseButtonReleased(MOUSE_BUTTON_LEFT)) moveEndPoint = false;
}
//----------------------------------------------------------------------------------
@@ -58,16 +63,14 @@ int main(void)
ClearBackground(RAYWHITE);
- DrawText("USE MOUSE LEFT-RIGHT CLICK to DEFINE LINE START and END POINTS", 15, 20, 20, GRAY);
+ DrawText("MOVE START-END POINTS WITH MOUSE", 15, 20, 20, GRAY);
- //DrawLineBezier(start, end, 2.0f, RED);
-
- DrawLineBezierCubic(start, end, startControl, endControl, 2.0f, RED);
+ // Draw line Cubic Bezier, in-out interpolation (easing), no control points
+ DrawLineBezier(startPoint, endPoint, 4.0f, BLUE);
- DrawLineEx(start, startControl, 1.0, LIGHTGRAY);
- DrawLineEx(end, endControl, 1.0, LIGHTGRAY);
- DrawCircleV(startControl, 10, RED);
- DrawCircleV(endControl, 10, RED);
+ // Draw start-end spline circles with some details
+ DrawCircleV(startPoint, CheckCollisionPointCircle(mouse, startPoint, 10.0f)? 14 : 8, moveStartPoint? RED : BLUE);
+ DrawCircleV(endPoint, CheckCollisionPointCircle(mouse, endPoint, 10.0f)? 14 : 8, moveEndPoint? RED : BLUE);
EndDrawing();
//----------------------------------------------------------------------------------