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add camera example

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This commit is contained in:
aap
2021-03-03 21:53:06 +01:00
parent 47487afc04
commit 70d222deeb
18 changed files with 1108 additions and 476 deletions
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56
skeleton/skeleton.cpp
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@@ -95,7 +95,7 @@ CameraDestroy(rw::Camera *cam)
}
void
CameraSize(Camera *cam, Rect *r)
CameraSize(Camera *cam, Rect *r, float viewWindow, float aspectRatio)
{
if(cam->frameBuffer){
cam->frameBuffer->destroy();
@@ -107,6 +107,60 @@ CameraSize(Camera *cam, Rect *r)
}
cam->frameBuffer = Raster::create(r->w, r->h, 0, Raster::CAMERA);
cam->zBuffer = Raster::create(r->w, r->h, 0, Raster::ZBUFFER);
if(viewWindow != 0.0f){
rw::V2d vw;
// TODO: aspect ratio when fullscreen
if(r->w > r->h){
vw.x = viewWindow;
vw.y = viewWindow / ((float)r->w/r->h);
}else{
vw.x = viewWindow / ((float)r->h/r->w);
vw.y = viewWindow;
}
cam->setViewWindow(&vw);
}
}
void
CameraMove(Camera *cam, V3d *delta)
{
rw::V3d offset;
rw::V3d::transformVectors(&offset, delta, 1, &cam->getFrame()->matrix);
cam->getFrame()->translate(&offset);
}
void
CameraPan(Camera *cam, V3d *pos, float angle)
{
rw::Frame *frame = cam->getFrame();
rw::V3d trans = pos ? *pos : frame->matrix.pos;
rw::V3d negTrans = rw::scale(trans, -1.0f);
frame->translate(&negTrans);
frame->rotate(&frame->matrix.up, angle);
frame->translate(&trans);
}
void
CameraTilt(Camera *cam, V3d *pos, float angle)
{
rw::Frame *frame = cam->getFrame();
rw::V3d trans = pos ? *pos : frame->matrix.pos;
rw::V3d negTrans = rw::scale(trans, -1.0f);
frame->translate(&negTrans);
frame->rotate(&frame->matrix.right, angle);
frame->translate(&trans);
}
void
CameraRotate(Camera *cam, V3d *pos, float angle)
{
rw::Frame *frame = cam->getFrame();
rw::V3d trans = pos ? *pos : frame->matrix.pos;
rw::V3d negTrans = rw::scale(trans, -1.0f);
frame->translate(&negTrans);
frame->rotate(&frame->matrix.at, angle);
frame->translate(&negTrans);
}
EventStatus

6
skeleton/skeleton.h
View File

@@ -104,7 +104,11 @@ bool InitRW(void);
void TerminateRW(void);
Camera *CameraCreate(int32 width, int32 height, bool32 z);
void CameraDestroy(rw::Camera *cam);
void CameraSize(Camera *cam, Rect *r);
void CameraSize(Camera *cam, Rect *r, float viewWindow = 0.0f, float aspectRatio = 0.0f);
void CameraMove(Camera *cam, V3d *delta);
void CameraPan(Camera *cam, V3d *pos, float angle);
void CameraTilt(Camera *cam, V3d *pos, float angle);
void CameraRotate(Camera *cam, V3d *pos, float angle);
void SetMousePosition(int x, int y);
EventStatus EventHandler(Event e, void *param);