mirror of https://github.com/axmolengine/axmol.git
125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
/* Copyright (c) 2007 Scott Lembcke
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <math.h>
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#include "chipmunk.h"
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#include "drawSpace.h"
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#include "ChipmunkDemo.h"
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static cpSpace *space;
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static cpBody *staticBody;
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static void
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update(int ticks)
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{
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int steps = 3;
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cpFloat dt = 1.0f/60.0f/(cpFloat)steps;
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for(int i=0; i<steps; i++){
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cpSpaceStep(space, dt);
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}
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}
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static void
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add_box()
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{
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const cpFloat size = 10.0f;
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const cpFloat mass = 1.0f;
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cpVect verts[] = {
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cpv(-size,-size),
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cpv(-size, size),
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cpv( size, size),
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cpv( size,-size),
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};
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cpFloat radius = cpvlength(cpv(size, size));
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cpBody *body = cpSpaceAddBody(space, cpBodyNew(mass, cpMomentForPoly(mass, 4, verts, cpvzero)));
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body->p = cpv(frand()*(640 - 2*radius) - (320 - radius), frand()*(480 - 2*radius) - (240 - radius));
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body->v = cpvmult(cpv(2*frand() - 1, 2*frand() - 1), 200);
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cpShape *shape = cpSpaceAddShape(space, cpPolyShapeNew(body, 4, verts, cpvzero));
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shape->e = 1.0f; shape->u = 0.0f;
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}
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static cpSpace *
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init(void)
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{
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staticBody = cpBodyNew(INFINITY, INFINITY);
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cpResetShapeIdCounter();
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space = cpSpaceNew();
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cpSpaceResizeActiveHash(space, 30.0f, 1000);
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space->iterations = 10;
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cpShape *shape;
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// Create segments around the edge of the screen.
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shape = cpSpaceAddStaticShape(space, cpSegmentShapeNew(staticBody, cpv(-320,-240), cpv(-320,240), 0.0f));
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shape->e = 1.0f; shape->u = 1.0f;
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shape->layers = NOT_GRABABLE_MASK;
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shape = cpSpaceAddStaticShape(space, cpSegmentShapeNew(staticBody, cpv(320,-240), cpv(320,240), 0.0f));
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shape->e = 1.0f; shape->u = 1.0f;
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shape->layers = NOT_GRABABLE_MASK;
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shape = cpSpaceAddStaticShape(space, cpSegmentShapeNew(staticBody, cpv(-320,-240), cpv(320,-240), 0.0f));
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shape->e = 1.0f; shape->u = 1.0f;
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shape->layers = NOT_GRABABLE_MASK;
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shape = cpSpaceAddStaticShape(space, cpSegmentShapeNew(staticBody, cpv(-320,240), cpv(320,240), 0.0f));
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shape->e = 1.0f; shape->u = 1.0f;
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shape->layers = NOT_GRABABLE_MASK;
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for(int i=0; i<10; i++)
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add_box();
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cpBody *body = cpSpaceAddBody(space, cpBodyNew(100.0f, 10000.0f));
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shape = cpSpaceAddShape(space, cpSegmentShapeNew(body, cpv(-75,0), cpv(75,0), 5.0f));
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shape->e = 1.0f; shape->u = 1.0f;
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cpSpaceAddConstraint(space, cpPivotJointNew2(body, staticBody, cpvzero, cpvzero));
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return space;
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}
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static void
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destroy(void)
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{
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cpBodyFree(staticBody);
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cpSpaceFreeChildren(space);
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cpSpaceFree(space);
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}
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chipmunkDemo Bounce = {
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"Bounce",
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NULL,
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init,
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update,
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destroy,
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};
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