mirror of https://github.com/axmolengine/axmol.git
104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
/* Copyright (c) 2007 Scott Lembcke
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include "chipmunk/chipmunk.h"
|
|
#include "ChipmunkDemo.h"
|
|
|
|
static void
|
|
update(cpSpace *space, double dt)
|
|
{
|
|
cpSpaceStep(space, dt);
|
|
}
|
|
|
|
#define WIDTH 4.0f
|
|
#define HEIGHT 30.0f
|
|
|
|
static void
|
|
add_domino(cpSpace *space, cpVect pos, cpBool flipped)
|
|
{
|
|
cpFloat mass = 1.0f;
|
|
cpFloat radius = 0.5f;
|
|
cpFloat moment = cpMomentForBox(mass, WIDTH, HEIGHT);
|
|
|
|
cpBody *body = cpSpaceAddBody(space, cpBodyNew(mass, moment));
|
|
cpBodySetPosition(body, pos);
|
|
|
|
cpShape *shape = (flipped ? cpBoxShapeNew(body, HEIGHT, WIDTH, 0.0) : cpBoxShapeNew(body, WIDTH - radius*2.0f, HEIGHT, radius));
|
|
cpSpaceAddShape(space, shape);
|
|
cpShapeSetElasticity(shape, 0.0f);
|
|
cpShapeSetFriction(shape, 0.6f);
|
|
}
|
|
|
|
static cpSpace *
|
|
init(void)
|
|
{
|
|
cpSpace *space = cpSpaceNew();
|
|
cpSpaceSetIterations(space, 30);
|
|
cpSpaceSetGravity(space, cpv(0, -300));
|
|
cpSpaceSetSleepTimeThreshold(space, 0.5f);
|
|
cpSpaceSetCollisionSlop(space, 0.5f);
|
|
|
|
// Add a floor.
|
|
cpShape *shape = cpSpaceAddShape(space, cpSegmentShapeNew(cpSpaceGetStaticBody(space), cpv(-600,-240), cpv(600,-240), 0.0f));
|
|
cpShapeSetElasticity(shape, 1.0f);
|
|
cpShapeSetFriction(shape, 1.0f);
|
|
cpShapeSetFilter(shape, NOT_GRABBABLE_FILTER);
|
|
|
|
|
|
// Add the dominoes.
|
|
int n = 12;
|
|
for(int i=0; i<n; i++){
|
|
for(int j=0; j<(n - i); j++){
|
|
cpVect offset = cpv((j - (n - 1 - i)*0.5f)*1.5f*HEIGHT, (i + 0.5f)*(HEIGHT + 2*WIDTH) - WIDTH - 240);
|
|
add_domino(space, offset, cpFalse);
|
|
add_domino(space, cpvadd(offset, cpv(0, (HEIGHT + WIDTH)/2.0f)), cpTrue);
|
|
|
|
if(j == 0){
|
|
add_domino(space, cpvadd(offset, cpv(0.5f*(WIDTH - HEIGHT), HEIGHT + WIDTH)), cpFalse);
|
|
}
|
|
|
|
if(j != n - i - 1){
|
|
add_domino(space, cpvadd(offset, cpv(HEIGHT*0.75f, (HEIGHT + 3*WIDTH)/2.0f)), cpTrue);
|
|
} else {
|
|
add_domino(space, cpvadd(offset, cpv(0.5f*(HEIGHT - WIDTH), HEIGHT + WIDTH)), cpFalse);
|
|
}
|
|
}
|
|
}
|
|
|
|
return space;
|
|
}
|
|
|
|
static void
|
|
destroy(cpSpace *space)
|
|
{
|
|
ChipmunkDemoFreeSpaceChildren(space);
|
|
cpSpaceFree(space);
|
|
}
|
|
|
|
ChipmunkDemo PyramidTopple = {
|
|
"Pyramid Topple",
|
|
1.0/180.0,
|
|
init,
|
|
update,
|
|
ChipmunkDemoDefaultDrawImpl,
|
|
destroy,
|
|
};
|