[rshapes] Fix DrawPolyLinesEx() (#6004)

If `innerRadius` is less than 0, it causes the outline to overlap itself and even grow outside of the polygon's bounds when `thick` is greater than `radius`. Clamping `innerRadius` to 0 fixes these problems.

build.zig

@@ -719,7 +719,6 @@ fn addExamples(
                 .shell_file_path = b.path("src/shell.html"),
                 .install_dir = install_dir,
             });
-            b.getInstallStep().dependOn(emcc_step);
 
             const html_filename = try std.fmt.allocPrint(b.allocator, "{s}.html", .{wasm.name});
             const emrun_step = emsdk.emrunStep(

build.zig.zon

@@ -12,8 +12,8 @@
             .lazy = true,
         },
         .raygui = .{
-            .url = "git+https://github.com/raysan5/raygui#3b2855842ab578a034f827c38cf8f62c042fc983",
-            .hash = "N-V-__8AAHvybwBw1kyBGn0BW_s1RqIpycNjLf_XbE-fpLUF",
+            .url = "git+https://github.com/raysan5/raygui#3f81e2bd02bf08dcd9d350e8e8b3cf58044d6877",
+            .hash = "N-V-__8AAPPCmABYkTrLoRGTR6whFQP1bvg7p5vpLsKIcn4G",
             .lazy = true,
         },
         .emsdk = .{

src/rmodels.c

@@ -6614,7 +6614,6 @@ static ModelAnimation *LoadModelAnimationsGLTF(const char *fileName, int *animCo
                     cgltf_animation_channel *translate;
                     cgltf_animation_channel *rotate;
                     cgltf_animation_channel *scale;
-                    cgltf_interpolation_type interpolationType;
                 };
 
                 struct Channels *boneChannels = (struct Channels *)RL_CALLOC(animations[a].boneCount, sizeof(struct Channels));
@@ -6636,8 +6635,6 @@ static ModelAnimation *LoadModelAnimationsGLTF(const char *fileName, int *animCo
 
                     if (boneIndex == -1) continue; // Animation channel for a node not in the skeleton
 
-                    boneChannels[boneIndex].interpolationType = animData.channels[j].sampler->interpolation;
-
                     if (animData.channels[j].sampler->interpolation != cgltf_interpolation_type_max_enum)
                     {
                         if (channel.target_path == cgltf_animation_path_type_translation)
@@ -6689,7 +6686,7 @@ static ModelAnimation *LoadModelAnimationsGLTF(const char *fileName, int *animCo
 
                         if (boneChannels[k].translate)
                         {
-                            if (!GetPoseAtTimeGLTF(boneChannels[k].interpolationType, boneChannels[k].translate->sampler->input, boneChannels[k].translate->sampler->output, time, &translation))
+                            if (!GetPoseAtTimeGLTF(boneChannels[k].translate->sampler->interpolation, boneChannels[k].translate->sampler->input, boneChannels[k].translate->sampler->output, time, &translation))
                             {
                                 TRACELOG(LOG_INFO, "MODEL: [%s] Failed to load translate pose data for bone %s", fileName, bones[k].name);
                             }
@@ -6697,7 +6694,7 @@ static ModelAnimation *LoadModelAnimationsGLTF(const char *fileName, int *animCo
 
                         if (boneChannels[k].rotate)
                         {
-                            if (!GetPoseAtTimeGLTF(boneChannels[k].interpolationType, boneChannels[k].rotate->sampler->input, boneChannels[k].rotate->sampler->output, time, &rotation))
+                            if (!GetPoseAtTimeGLTF(boneChannels[k].rotate->sampler->interpolation, boneChannels[k].rotate->sampler->input, boneChannels[k].rotate->sampler->output, time, &rotation))
                             {
                                 TRACELOG(LOG_INFO, "MODEL: [%s] Failed to load rotate pose data for bone %s", fileName, bones[k].name);
                             }
@@ -6705,7 +6702,7 @@ static ModelAnimation *LoadModelAnimationsGLTF(const char *fileName, int *animCo
 
                         if (boneChannels[k].scale)
                         {
-                            if (!GetPoseAtTimeGLTF(boneChannels[k].interpolationType, boneChannels[k].scale->sampler->input, boneChannels[k].scale->sampler->output, time, &scale))
+                            if (!GetPoseAtTimeGLTF(boneChannels[k].scale->sampler->interpolation, boneChannels[k].scale->sampler->input, boneChannels[k].scale->sampler->output, time, &scale))
                             {
                                 TRACELOG(LOG_INFO, "MODEL: [%s] Failed to load scale pose data for bone %s", fileName, bones[k].name);
                             }

src/rshapes.c

@@ -1260,10 +1260,12 @@ void DrawPolyLines(Vector2 center, int sides, float radius, float rotation, Colo
 
 void DrawPolyLinesEx(Vector2 center, int sides, float radius, float rotation, float thick, Color color)
 {
+    if (thick <= 0.0f) return;
+
     if (sides < 3) sides = 3;
     float centralAngle = rotation*DEG2RAD;
     float exteriorAngle = 360.0f/(float)sides*DEG2RAD;
-    float innerRadius = radius - (thick*cosf(DEG2RAD*exteriorAngle/2.0f));
+    float innerRadius = fmaxf(0.0f, radius - (thick*cosf(DEG2RAD*exteriorAngle/2.0f)));
 
 #if SUPPORT_QUADS_DRAW_MODE
     rlSetTexture(GetShapesTexture().id);