mirror of https://github.com/axmolengine/axmol.git
131 lines
4.3 KiB
C
131 lines
4.3 KiB
C
/* Copyright (c) 2007 Scott Lembcke
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* Copyright (c) 2021 @aismann; Peter Eismann, Germany; dreifrankensoft
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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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#if !defined(_USE_MATH_DEFINES)
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# define _USE_MATH_DEFINES
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#endif
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#include <math.h>
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#include <string.h>
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#include "chipmunk/chipmunk_private.h"
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#include "chipmunk/chipmunk_unsafe.h"
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#include "ChipmunkDemo.h"
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static void update(cpSpace* space, double dt)
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{
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cpSpaceStep(space, dt);
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}
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static cpSpace* init(void)
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{
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cpSpace* space = cpSpaceNew();
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cpSpaceSetIterations(space, 5);
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space->damping = 0.1;
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cpShape *shape1, *shape2;
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cpFloat mass = 1.0f;
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{
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cpFloat size = 100.0;
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cpBody* body = cpSpaceAddBody(space, cpBodyNew(mass, cpMomentForBox(mass, size, size)));
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cpBodySetPosition(body, cpv(100.0, 50.0f));
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shape1 = cpSpaceAddShape(space, cpBoxShapeNew(body, size, size, 0.0));
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}
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{
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cpFloat size = 100.0;
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cpBody* body = cpSpaceAddBody(space, cpBodyNew(mass, cpMomentForBox(mass, size, size)));
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cpBodySetPosition(body, cpv(120.0, -40.0f));
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cpBodySetAngle(body, 1e-2);
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shape2 = cpSpaceAddShape(space, cpBoxShapeNew(body, size, size, 0.0));
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}
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{
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cpFloat size = 100.0;
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const int NUM_VERTS = 5;
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cpVect verts[NUM_VERTS];
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for (int i = 0; i < NUM_VERTS; i++)
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{
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cpFloat angle = -2 * M_PI * i / ((cpFloat)NUM_VERTS);
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verts[i] = cpv(size / 2.0 * cos(angle), size / 2.0 * sin(angle));
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}
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cpBody* body = cpSpaceAddBody(space, cpBodyNew(mass, cpMomentForPoly(mass, NUM_VERTS, verts, cpvzero, 0.0)));
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cpBodySetPosition(body, cpv(100.0, 50.0f));
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shape1 = cpSpaceAddShape(space, cpPolyShapeNew(body, NUM_VERTS, verts, cpTransformIdentity, 0.0));
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}
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{
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cpFloat size = 100.0;
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const int NUM_VERTS = 4;
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cpVect verts[NUM_VERTS];
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for (int i = 0; i < NUM_VERTS; i++)
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{
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cpFloat angle = -2 * M_PI * i / ((cpFloat)NUM_VERTS);
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verts[i] = cpv(size / 2.0 * cos(angle), size / 2.0 * sin(angle));
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}
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cpBody* body = cpSpaceAddBody(space, cpBodyNew(mass, cpMomentForPoly(mass, NUM_VERTS, verts, cpvzero, 0.0)));
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cpBodySetPosition(body, cpv(100.0, -50.0f));
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shape2 = cpSpaceAddShape(space, cpPolyShapeNew(body, NUM_VERTS, verts, cpTransformIdentity, 5.0));
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}
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{
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cpFloat size = 150.0;
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cpFloat radius = 25.0;
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cpVect a = cpv(size / 2.0, 0.0);
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cpVect b = cpv(-size / 2.0, 0.0);
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cpBody* body = cpSpaceAddBody(space, cpBodyNew(mass, cpMomentForSegment(mass, a, b, 0.0)));
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cpBodySetPosition(body, cpv(0, 25));
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shape1 = cpSpaceAddShape(space, cpSegmentShapeNew(body, a, b, radius));
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}
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{
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cpFloat radius = 50.0;
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cpBody* body = cpSpaceAddBody(space, cpBodyNew(mass, cpMomentForCircle(mass, 0.0f, radius, cpvzero)));
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cpBodySetPosition(body, cpv(0, -25));
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shape2 = cpSpaceAddShape(space, cpCircleShapeNew(body, radius, cpvzero));
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}
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return space;
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}
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static void destroy(cpSpace* space)
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{
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ChipmunkDemoFreeSpaceChildren(space);
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cpSpaceFree(space);
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}
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ChipmunkDemo Example = {
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"Template to start (GJK)", 1.0f / 60.0f, init, update, ChipmunkDemoDefaultDrawImpl, destroy,
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};
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