fix clear order and handmade math safed

src/examples/clear.d

@@ -46,8 +46,8 @@ void frame()
     const g = pass_action.colors[0].clear_value.g + 0.01;
     pass_action.colors[0].clear_value.g = g > 1.0 ? 0.0 : g;
     sg.beginDefaultPass(pass_action, sapp.width(), sapp.height());
-    sg.commit();
     sg.endPass();
+    sg.commit();
 }
 
 void cleanup()

src/examples/cube.d

@@ -25,7 +25,7 @@ struct State
     sg.Bindings bind;
     sg.PassAction passAction;
 
-    static Mat4 view() @trusted
+    static Mat4 view()
     {
         return Mat4.lookAt(Vec3(0.0f, 1.5f, 6.0f), Vec3.zero(), Vec3.up());
     }
@@ -102,6 +102,9 @@ void init()
     state.passAction.colors[0].clear_value.a = 1;
 }
 
+sg.Range ranging(ref shd.VsParams params) @trusted{
+    return cast(sg.Range)&params;
+}
 void frame()
 {
     float dt = cast(float) app.frameDuration() * 60;
@@ -115,7 +118,7 @@ void frame()
 
     sg.applyPipeline(state.pip);
     sg.applyBindings(state.bind);
-    // sg.applyUniforms(sg.ShaderStage.Vs, shd.SLOT_VS_PARAMS, sg.asRange(&vsParams));
+    sg.applyUniforms(sg.ShaderStage.Vs, shd.SLOT_VS_PARAMS, ranging(vsParams));
 
     sg.draw(0, 36, 1);
 
@@ -144,7 +147,7 @@ void main()
     app.run(runner);
 }
 
-shd.VsParams computeVsParams(float rx, float ry) @trusted
+shd.VsParams computeVsParams(float rx, float ry) 
 {
     auto rxm = Mat4.rotate(rx, Vec3(1, 0, 0));
     auto rym = Mat4.rotate(ry, Vec3(0, 1, 0));

src/examples/math.d

@@ -10,6 +10,8 @@ module handmade.math;
 
 import std.math : PI, sqrt, sin, cos, tan, isClose;
 
+@safe:
+
 struct Vec2
 {
     float x, y;