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add optional pivot for vector.rotate

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This commit is contained in:
John Alanbrook 2024-08-29 10:20:22 -05:00
parent bc313d6f8c
commit dc25e23aa8
1 changed files with 4 additions and 2 deletions
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6
source/engine/jsffi.c
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@ -1289,12 +1289,14 @@ JSC_CCALL(vector_inflate,
JSC_CCALL(vector_rotate,
HMM_Vec2 vec = js2vec2(argv[0]);
float r = HMM_LenV2(vec);
double angle = js2angle(argv[1]);
HMM_Vec2 pivot = JS_IsUndefined(argv[2]) ? v2zero : js2vec2(argv[2]);
vec = HMM_SubV2(vec,pivot);
float r = HMM_LenV2(vec);
angle += atan2(vec.y,vec.x);
vec.x = r*cos(angle);
vec.y = r*sin(angle);
return vec22js(vec);
return vec22js(HMM_AddV2(vec,pivot));
)
JSC_CCALL(vector_add,