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Set fixed timestep to delta time by default

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This commit is contained in:
n00b
2024-11-30 23:28:30 -05:00
parent 2a78f8cf81
commit f008cf839b
3 changed files with 9 additions and 5 deletions
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9
rcbasic_runtime/rc_gfx.h
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@@ -328,7 +328,8 @@ bool rc_windowOpenEx(std::string title, int x, int y, int w, int h, uint32_t win
rc_physics3D.TimeStamp = SDL_GetTicks(); //device->getTimer()->getTime(); rc_physics3D.TimeStamp = SDL_GetTicks(); //device->getTimer()->getTime();
rc_physics3D.maxSubSteps = 1; rc_physics3D.maxSubSteps = 1;
rc_physics3D.fixedTimeStep = irr::f32(1.) / irr::f64(60.); //rc_physics3D.fixedTimeStep = irr::f32(1.) / irr::f64(60.);
rc_physics3D.fixedTimeStep = -1;
rc_physics3D.world->setInternalTickCallback((btInternalTickCallback)myTickCallback2); rc_physics3D.world->setInternalTickCallback((btInternalTickCallback)myTickCallback2);
@@ -3047,7 +3048,8 @@ void rc_preUpdate()
//rc_physics3D.TimeStamp = device->getTimer()->getTime(); //rc_physics3D.TimeStamp = device->getTimer()->getTime();
rc_physics3D.DeltaTime = SDL_GetTicks() - rc_physics3D.TimeStamp; rc_physics3D.DeltaTime = SDL_GetTicks() - rc_physics3D.TimeStamp;
rc_physics3D.TimeStamp = SDL_GetTicks(); rc_physics3D.TimeStamp = SDL_GetTicks();
rc_physics3D.world->stepSimulation(rc_physics3D.DeltaTime*0.001f, rc_physics3D.maxSubSteps, rc_physics3D.fixedTimeStep); float fixed_timestep = rc_physics3D.fixedTimeStep < 0 ? rc_physics3D.DeltaTime*0.001f : rc_physics3D.fixedTimeStep;
rc_physics3D.world->stepSimulation(rc_physics3D.DeltaTime*0.001f, rc_physics3D.maxSubSteps, fixed_timestep);
for(int i = 0; i < rc_canvas.size(); i++) for(int i = 0; i < rc_canvas.size(); i++)
{ {
@@ -3459,7 +3461,8 @@ bool rc_update()
//rc_physics3D.TimeStamp = device->getTimer()->getTime(); //rc_physics3D.TimeStamp = device->getTimer()->getTime();
rc_physics3D.DeltaTime = SDL_GetTicks() - rc_physics3D.TimeStamp; rc_physics3D.DeltaTime = SDL_GetTicks() - rc_physics3D.TimeStamp;
rc_physics3D.TimeStamp = SDL_GetTicks(); rc_physics3D.TimeStamp = SDL_GetTicks();
rc_physics3D.world->stepSimulation(rc_physics3D.DeltaTime*0.001f, rc_physics3D.maxSubSteps, rc_physics3D.fixedTimeStep); float fixed_timestep = rc_physics3D.fixedTimeStep < 0 ? rc_physics3D.DeltaTime*0.001f : rc_physics3D.fixedTimeStep;
rc_physics3D.world->stepSimulation(rc_physics3D.DeltaTime*0.001f, rc_physics3D.maxSubSteps, fixed_timestep);
} }
for(int i = 0; i < rc_canvas.size(); i++) for(int i = 0; i < rc_canvas.size(); i++)

1
rcbasic_runtime/rc_gfx_core.h
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@@ -307,6 +307,7 @@ struct rc_physicsWorld2D_obj
b2World* world; b2World* world;
rc_contactListener_obj* contact_listener; rc_contactListener_obj* contact_listener;
float time_stamp;
float timeStep = 1/60.0; //the length of time passed to simulate (seconds) float timeStep = 1/60.0; //the length of time passed to simulate (seconds)
int velocityIterations = 8; //how strongly to correct velocity int velocityIterations = 8; //how strongly to correct velocity
int positionIterations = 3; //how strongly to correct position int positionIterations = 3; //how strongly to correct position

4
rcbasic_runtime/rcbasic_runtime.depend
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@@ -1247,7 +1247,7 @@
1727545973 /home/n00b/Projects/RCBASIC4/rcbasic_runtime/RealisticWater.h 1727545973 /home/n00b/Projects/RCBASIC4/rcbasic_runtime/RealisticWater.h
<irrlicht.h> <irrlicht.h>
1733023077 /home/n00b/Projects/RCBASIC4/rcbasic_runtime/rc_gfx.h 1733027113 /home/n00b/Projects/RCBASIC4/rcbasic_runtime/rc_gfx.h
"SDL.h" "SDL.h"
<SDL2/SDL.h> <SDL2/SDL.h>
<irrlicht.h> <irrlicht.h>
@@ -1271,7 +1271,7 @@
"rc_joints.h" "rc_joints.h"
<irrtheora.h> <irrtheora.h>
1732372339 /home/n00b/Projects/RCBASIC4/rcbasic_runtime/rc_gfx_core.h 1733027113 /home/n00b/Projects/RCBASIC4/rcbasic_runtime/rc_gfx_core.h
"SDL.h" "SDL.h"
"btBulletDynamicsCommon.h" "btBulletDynamicsCommon.h"
"BulletSoftBody/btSoftRigidDynamicsWorld.h" "BulletSoftBody/btSoftRigidDynamicsWorld.h"