X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=scene.c;h=25cc0dc1634ce924a84dad5c321dbed67aa1a922;hp=c650c057dc9db23128a1c7de063239157a8f406b;hb=aab2e2f70552398a51a24f644147a1c6de45c766;hpb=55bfed85b24a4fe5471d3fca580e3b86cd74e21d diff --git a/scene.c b/scene.c index c650c05..25cc0dc 100644 --- a/scene.c +++ b/scene.c @@ -1,6 +1,6 @@ /** * CITS2231 Graphics Scene Editor - * @author Ashley Tyndall (20915779) + * @author Ashley Tyndall (20915779), Jenna de la Harpe (20367932) */ #include @@ -111,6 +111,7 @@ void processLightEvents(int id) { */ void processObjectEvents(int id) { addSceneObject(id); + manipulateState = STATE_OBJECT_POSITION_SCALE; glutPostRedisplay(); } @@ -198,6 +199,9 @@ void windowReshape(int w, int h) { * @param y Mouse y position */ void mouse(int button, int state, int x, int y) { + if ( button == GLUT_LEFT_BUTTON && glutGetModifiers() == GLUT_ACTIVE_SHIFT ) { + button = GLUT_MIDDLE_BUTTON; // Holding shift with left button is the same as the middle button + } switch(button) { case GLUT_LEFT_BUTTON: case GLUT_MIDDLE_BUTTON: @@ -282,13 +286,14 @@ void motion(int x, int y) { switch ( manipulateState ) { case STATE_CAMERA_ROTATE_MOVE: + // w: rotate rotate += (x - startx); if ( buttonSelected == GLUT_LEFT_BUTTON ) { - // w: rotate, h: zoom + // h: zoom zoom += (y - starty); } else if ( buttonSelected == GLUT_MIDDLE_BUTTON ) { - // w: rotate, h: tilt + // h: tilt camAngle += (y - starty); } @@ -298,21 +303,40 @@ void motion(int x, int y) { break; case STATE_OBJECT_POSITION_SCALE: - //SceneObject co = sceneObjs[curObject]; - + if ( buttonSelected == GLUT_LEFT_BUTTON ) { // w: left/right, h: near/far - + //so.x, so.y, so.z + //sceneObjs[curObject].x += (x - startx)*leftrightFactor; + printf("cam angle: %f\n", rotate*rotateFactor); + sceneObjs[curObject].x += (x - startx) * cos(rotate*rotateFactor); + sceneObjs[curObject].z += (x - startx) * sin(rotate*rotateFactor); } else if ( buttonSelected == GLUT_MIDDLE_BUTTON ) { - // w: big/small, h: up/down + // w: big/small + float diff = (x - startx); + float max = (float)height/bigsmallFactor; + float scaling = ( diff + max) / max; + + sceneObjs[curObject].scale[0] *= scaling; + sceneObjs[curObject].scale[1] *= scaling; + sceneObjs[curObject].scale[2] *= scaling; + + // h: up/down + sceneObjs[curObject].y -= (y - starty) * updownFactor; } + + starty = y; + startx = x; + break; case STATE_OBJECT_ROTATION_TEXTURE_SCALE: if ( buttonSelected == GLUT_LEFT_BUTTON ) { // w: rotate on width, h: rotate on h + } else if ( buttonSelected == GLUT_MIDDLE_BUTTON ) { - // w & h, rotate on h + // w: rotate on height, h: texture scale + } break; @@ -354,7 +378,7 @@ void display() { 0.0, 10.0, 0.0 /* up is in postivie Y direction */ ); - glRotatef(camAngle*camAngleFactor, 1.0, 0.0, 0.0); + glRotatef(camAngle*camAngleFactor, 1.0, 0.0, 0.0); // Set camera angle upward /* Reposition the light source 0. */ lightPosition0[0] = 12*cos(lightAngle0);