sigonasr2/AngleNorming
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Radians instead. And fixes.

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sigonasr2 2022-11-27 17:02:37 -06:00
parent f47d7703a1
commit 71f10d012a
1 changed files with 13 additions and 21 deletions
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34
main.cpp
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@ -10,30 +10,22 @@
using namespace olc;
const float PI = 3.14159f;
float angle_difference(float angle_1, float angle_2)
{
angle_1=(angle_1<0)?angle_1+360:fmod(angle_1,360);
angle_2=(angle_2<0)?angle_2+360:fmod(angle_2,360);
angle_1=fmod(angle_1,2*PI);
angle_2=fmod(angle_2,2*PI);
float angle_diff = angle_1 - angle_2;
if (angle_diff > 180)
angle_diff -= 360;
else if (angle_diff < -180)
angle_diff += 360;
if (angle_diff > PI)
angle_diff -= 2*PI;
else if (angle_diff < -PI)
angle_diff += 2*PI;
return -angle_diff;
}
//Points an angle from point1 to point2, returning an angle between 0-2*PI.
// (atan2 returns -PI to PI)
float atan2fmod(vd2d point1,vd2d point2){
float angle = atan2f(point2.y-point1.y,point2.x-point1.x);
if (angle<0) {
angle+=2*3.14159f;
}
return angle;
}
class Object{
public:
float facing_dir;
@ -69,17 +61,17 @@ public:
bool OnUserUpdate(float fElapsedTime) override
{
Clear(BLACK);
float diffAng = atan2fmod(testRotationObj->pos,GetMousePos());
float rotAngle=angle_difference((180.f/3.14159f)*testRotationObj->facing_dir,(180.f/3.14159f)*diffAng);
//std::cout<<diffAng<<std::endl;
//std::cout<<" "<<rotAngle<<std::endl;
if (abs(rotAngle)>testRotationObj->rotation_spd*fElapsedTime*(180.f/3.14159f)) {
float diffAng = atan2f(GetMouseY()-testRotationObj->pos.y,GetMouseX()-testRotationObj->pos.x);
float rotAngle=angle_difference(testRotationObj->facing_dir,diffAng);
if (abs(rotAngle)>testRotationObj->rotation_spd*fElapsedTime) { //Prevents stuttering. Wait for an entire rotation speed amount to occur
if (rotAngle>0) {
testRotationObj->facing_dir+=testRotationObj->rotation_spd*fElapsedTime;
} else {
testRotationObj->facing_dir-=testRotationObj->rotation_spd*fElapsedTime;
}
}
testRotationObj->draw(this);
return true;
}