axmol/tests/cpp-tests/Classes/ChipmunkTestBed/demo/PyramidStack.c

93 lines
3.4 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 "chipmunk/chipmunk_unsafe.h"
#include "ChipmunkDemo.h"
static void update(cpSpace* space, double dt) {
cpSpaceStep(space, dt);
}
static cpSpace* init(void) {
cpSpace* space = cpSpaceNew();
cpSpaceSetIterations(space, 30);
cpSpaceSetGravity(space, cpv(0, -100));
cpSpaceSetSleepTimeThreshold(space, 0.5f);
cpSpaceSetCollisionSlop(space, 0.5f);
cpBody *body, *staticBody = cpSpaceGetStaticBody(space);
cpShape* shape;
// Create segments around the edge of the screen.
shape = cpSpaceAddShape(space, cpSegmentShapeNew(staticBody, cpv(-320, -240), cpv(-320, 240), 0.0f));
cpShapeSetElasticity(shape, 1.0f);
cpShapeSetFriction(shape, 1.0f);
cpShapeSetFilter(shape, NOT_GRABBABLE_FILTER);
shape = cpSpaceAddShape(space, cpSegmentShapeNew(staticBody, cpv(320, -240), cpv(320, 240), 0.0f));
cpShapeSetElasticity(shape, 1.0f);
cpShapeSetFriction(shape, 1.0f);
cpShapeSetFilter(shape, NOT_GRABBABLE_FILTER);
shape = cpSpaceAddShape(space, cpSegmentShapeNew(staticBody, cpv(-320, -240), cpv(320, -240), 0.0f));
cpShapeSetElasticity(shape, 1.0f);
cpShapeSetFriction(shape, 1.0f);
cpShapeSetFilter(shape, NOT_GRABBABLE_FILTER);
// Add lots of boxes.
for (int i = 0; i < 14; i++) {
for (int j = 0; j <= i; j++) {
body = cpSpaceAddBody(space, cpBodyNew(1.0f, cpMomentForBox(1.0f, 30.0f, 30.0f)));
cpBodySetPosition(body, cpv(j * 32 - i * 16, 300 - i * 32));
shape = cpSpaceAddShape(space, cpBoxShapeNew(body, 30.0f, 30.0f, 0.5f));
cpShapeSetElasticity(shape, 0.0f);
cpShapeSetFriction(shape, 0.8f);
}
}
// Add a ball to make things more interesting
cpFloat radius = 15.0f;
body = cpSpaceAddBody(space, cpBodyNew(10.0f, cpMomentForCircle(10.0f, 0.0f, radius, cpvzero)));
cpBodySetPosition(body, cpv(0, -200 + radius + 5));
shape = cpSpaceAddShape(space, cpCircleShapeNew(body, radius, cpvzero));
cpShapeSetElasticity(shape, 0.0f);
cpShapeSetFriction(shape, 0.9f);
return space;
}
static void destroy(cpSpace* space) {
ChipmunkDemoFreeSpaceChildren(space);
cpSpaceFree(space);
}
ChipmunkDemo PyramidStack = {
"Pyramid Stack",
1.0 / 180.0,
init,
update,
ChipmunkDemoDefaultDrawImpl,
destroy,
};