World_t *world_create(void)
{
World_t *out = obj_create_autoreleased(&Class_World);
out->cpSpace = cpSpaceNew();
out->cpSpace->data = out;
cpSpaceAddCollisionHandler(out->cpSpace, 0, 0,
collisionWillBegin,
NULL,
collisionDidBegin,
collisionDidEnd, NULL);
out->entities = obj_retain(llist_create((InsertionCallback_t)&obj_retain, &obj_release));
// Create the static entity
out->staticEntity = obj_create(&Class_WorldEntity);
out->staticEntity->world = out;
out->staticEntity->owner = out;
out->staticEntity->cpBody = out->cpSpace->staticBody;
out->staticEntity->luaUpdateHandler = -1;
out->staticEntity->luaPreCollisionHandler = -1;
out->staticEntity->luaCollisionHandler = -1;
out->staticEntity->luaPostCollisionHandler = -1;
out->cpSpace->staticBody->data = out->staticEntity;
out->staticEntity->shapes = obj_retain(llist_create((InsertionCallback_t)&obj_retain, &obj_release));
return out;
}
WorldShape_t *worldShape_createBox(vec2_t aSize)
{
WorldShape_t *out = obj_create_autoreleased(&Class_WorldShape);
out->cpShape = cpBoxShapeNew(NULL, aSize.w, aSize.h);
out->cpShape->data = out;
return out;
}
WorldShape_t *worldShape_createSegment(vec2_t a, vec2_t b, GLMFloat aThickness)
{
WorldShape_t *out = obj_create_autoreleased(&Class_WorldShape);
out->cpShape = cpSegmentShapeNew(NULL, VEC2_TO_CPV(a), VEC2_TO_CPV(b), aThickness);
out->cpShape->data = out;
return out;
}
WorldShape_t *worldShape_createCircle(vec2_t aCenter, GLMFloat aRadius)
{
WorldShape_t *out = obj_create_autoreleased(&Class_WorldShape);
out->cpShape = cpCircleShapeNew(NULL, aRadius, VEC2_TO_CPV(aCenter));
out->cpShape->data = out;
return out;
}
LuaContext_t *luaCtx_createContext()
{
LuaContext_t *out = obj_create_autoreleased(&Class_LuaContext);
if(!GlobalLuaContext)
GlobalLuaContext = obj_retain(out);
out->luaState = lua_open();
luaL_openlibs(out->luaState);
lua_pushcfunction(out->luaState, &luaApi_dynamo_registerCallback);
lua_setglobal(out->luaState, "dynamo_registerCallback");
lua_pushcfunction(out->luaState, &luaApi_dynamo_unregisterCallback);
lua_setglobal(out->luaState, "dynamo_unregisterCallback");
char buf[1024];
dynamo_assert(util_pathForResource(NULL, NULL, "DynamoScripts", buf, 1024), "Couldn't find dynamo scripts");
luaCtx_addSearchPath(out, buf);
dynamo_assert(util_pathForResource("glmath", "lua", "DynamoScripts", buf, 1024), "Couldn't find glmath init script");
dynamo_assert(luaCtx_executeFile(out, buf), "Error initializing GLMath");
dynamo_assert(util_pathForResource("dynamo", "lua", "DynamoScripts", buf, 1024), "Couldn't find dynamo init script");
dynamo_assert(luaCtx_executeFile(out, buf), "Error initializing dynamo");
return out;
}
InputManager_t *input_createManager()
{
InputManager_t *out = obj_create_autoreleased(&Class_InputManager);
out->observers = obj_retain(llist_create((InsertionCallback_t)&obj_retain, (RemovalCallback_t)&obj_release));
out->activeEvents = obj_retain(llist_create(NULL, NULL));
return out;
}
SpriteBatch_t *spriteBatch_create(TextureAtlas_t *aAtlas)
{
SpriteBatch_t *out = obj_create_autoreleased(&Class_SpriteBatch);
out->spriteCount = 0;
out->sprites = obj_retain(llist_create((InsertionCallback_t)&obj_retain, (RemovalCallback_t)&obj_release));
out->displayCallback = (RenderableDisplayCallback_t)&_spriteBatch_draw;
return out;
}
LuaContext_t *luaCtx_createContext()
{
LuaContext_t *out = obj_create_autoreleased(&Class_LuaContext);
out->luaState = lua_open();
luaL_openlibs(out->luaState);
return out;
}
InputObserver_t *input_createObserver(Input_type_t aObservedType, Input_handler_t aHandlerCallback, char *aCode, void *aMetaData)
{
InputObserver_t *out = obj_create_autoreleased(&Class_InputObserver);
out->type = aObservedType;
out->handlerCallback = aHandlerCallback;
out->metaData = aMetaData;
out->lastKnownState = kInputState_up;
if(aCode) out->code = *aCode;
return out;
}
WorldConstraint_t *worldConstr_createSimpleMotorJoint(WorldEntity_t *a, WorldEntity_t *b, GLMFloat aRate)
{
dynamo_assert(a->world == b->world, "Entities are not in the same world");
WorldConstraint_t *ret = obj_create_autoreleased(&Class_WorldConstraint);
ret->world = a->world;
ret->a = obj_retain(a);
ret->b = obj_retain(b);
ret->type = kWorldJointType_SimpleMotor;
ret->cpConstraint = cpSimpleMotorNew(a->cpBody, b->cpBody, aRate);
cpSpaceAddConstraint(ret->world->cpSpace, ret->cpConstraint);
return ret;
}
WorldConstraint_t *worldConstr_createRotaryLimitJoint(WorldEntity_t *a, WorldEntity_t *b, GLMFloat aMinAngle, GLMFloat aMaxAngle)
{
dynamo_assert(a->world == b->world, "Entities are not in the same world");
WorldConstraint_t *ret = obj_create_autoreleased(&Class_WorldConstraint);
ret->world = a->world;
ret->a = obj_retain(a);
ret->b = obj_retain(b);
ret->type = kWorldJointType_RotaryLimit;
ret->cpConstraint = cpRotaryLimitJointNew(a->cpBody, b->cpBody, aMinAngle, aMaxAngle);
cpSpaceAddConstraint(ret->world->cpSpace, ret->cpConstraint);
return ret;
}
WorldConstraint_t *worldConstr_createPivotJoint(WorldEntity_t *a, WorldEntity_t *b, vec2_t aPivot)
{
dynamo_assert(a->world == b->world, "Entities are not in the same world");
WorldConstraint_t *ret = obj_create_autoreleased(&Class_WorldConstraint);
ret->world = a->world;
ret->a = obj_retain(a);
ret->b = obj_retain(b);
ret->type = kWorldJointType_Pivot;
ret->cpConstraint = cpPivotJointNew(a->cpBody, b->cpBody, VEC2_TO_CPV(aPivot));
cpSpaceAddConstraint(ret->world->cpSpace, ret->cpConstraint);
return ret;
}
WorldConstraint_t *worldConstr_createDampedRotarySpringJoint(WorldEntity_t *a, WorldEntity_t *b,
GLMFloat aRestAngle, GLMFloat aStiffness, GLMFloat aDamping)
{
dynamo_assert(a->world == b->world, "Entities are not in the same world");
WorldConstraint_t *ret = obj_create_autoreleased(&Class_WorldConstraint);
ret->world = a->world;
ret->a = obj_retain(a);
ret->b = obj_retain(b);
ret->type = kWorldJointType_DampedRotarySpring;
ret->cpConstraint = cpDampedRotarySpringNew(a->cpBody, b->cpBody, aRestAngle, aStiffness, aDamping);
cpSpaceAddConstraint(ret->world->cpSpace, ret->cpConstraint);
return ret;
}
WorldConstraint_t *worldConstr_createSlideJoint(WorldEntity_t *a, WorldEntity_t *b, vec2_t aAnchorA, vec2_t aAnchorB,
GLMFloat aMinDist, GLMFloat aMaxDist)
{
dynamo_assert(a->world == b->world, "Entities are not in the same world");
WorldConstraint_t *ret = obj_create_autoreleased(&Class_WorldConstraint);
ret->world = a->world;
ret->a = obj_retain(a);
ret->b = obj_retain(b);
ret->type = kWorldJointType_Slide;
ret->cpConstraint = cpSlideJointNew(a->cpBody, b->cpBody, VEC2_TO_CPV(aAnchorA), VEC2_TO_CPV(aAnchorB), aMinDist, aMaxDist);
cpSpaceAddConstraint(ret->world->cpSpace, ret->cpConstraint);
return ret;
}
WorldConstraint_t *worldConstr_createDampedSpringJoint(WorldEntity_t *a, WorldEntity_t *b, vec2_t aAnchorA, vec2_t aAnchorB,
GLMFloat aRestLength, GLMFloat aStiffness, GLMFloat aDamping)
{
dynamo_assert(a->world == b->world, "Entities are not in the same world");
WorldConstraint_t *ret = obj_create_autoreleased(&Class_WorldConstraint);
ret->world = a->world;
ret->a = obj_retain(a);
ret->b = obj_retain(b);
ret->type = kWorldJointType_DampedSpring;
ret->cpConstraint = cpDampedSpringNew(a->cpBody, b->cpBody, VEC2_TO_CPV(aAnchorA), VEC2_TO_CPV(aAnchorB), aRestLength, aStiffness, aDamping);
cpSpaceAddConstraint(ret->world->cpSpace, ret->cpConstraint);
return ret;
}
WorldConstraint_t *worldConstr_createGrooveJoint(WorldEntity_t *a, WorldEntity_t *b, vec2_t aGrooveStart, vec2_t aGrooveEnd,
vec2_t aAnchorB)
{
dynamo_assert(a->world == b->world, "Entities are not in the same world");
WorldConstraint_t *ret = obj_create_autoreleased(&Class_WorldConstraint);
ret->world = a->world;
ret->a = obj_retain(a);
ret->b = obj_retain(b);
ret->type = kWorldJointType_Groove;
ret->cpConstraint = cpGrooveJointNew(a->cpBody, b->cpBody, VEC2_TO_CPV(aGrooveStart), VEC2_TO_CPV(aGrooveEnd),
VEC2_TO_CPV(aAnchorB));
cpSpaceAddConstraint(ret->world->cpSpace, ret->cpConstraint);
return ret;
}
Sprite_t *sprite_create(vec3_t aLocation, vec2_t aSize, TextureAtlas_t *aAtlas, int aAnimationCapacity)
{
Sprite_t *out = (Sprite_t*)obj_create_autoreleased(&Class_Sprite);
out->displayCallback = (RenderableDisplayCallback_t)&_sprite_draw;
out->location = aLocation;
out->size = aSize;
out->scale = 1.0f;
out->angle = 0.0f;
out->atlas = obj_retain(aAtlas);
out->flippedHorizontally = false;
out->flippedVertically = false;
out->activeAnimation = 0;
out->animations = calloc(aAnimationCapacity, sizeof(SpriteAnimation_t));
return out;
}
WorldEntity_t *worldEnt_create(World_t *aWorld, Obj_t *aOwner, GLMFloat aMass, GLMFloat amoment)
{
WorldEntity_t *out = obj_create_autoreleased(&Class_WorldEntity);
out->world = aWorld;
out->owner = aOwner;
out->cpBody = cpBodyNew(aMass, amoment);
out->cpBody->data = out;
out->shapes = obj_retain(llist_create((InsertionCallback_t)&obj_retain, &obj_release));
out->luaUpdateHandler = -1;
out->luaPreCollisionHandler = -1;
out->luaCollisionHandler = -1;
out->luaPostCollisionHandler = -1;
return out;
}
Texture_t *texture_loadFromPng(const char *aPath, bool aRepeatHorizontal, bool aRepeatVertical)
{
Texture_t *out = obj_create_autoreleased(&Class_Texture);
out->displayCallback = (RenderableDisplayCallback_t)&_texture_draw;
Png_t *png = png_load(aPath);
if(!png) {
dynamo_log("Unable to load png file from %s", aPath);
return NULL;
}
glGenTextures(1, &out->id);
glBindTexture(GL_TEXTURE_2D, out->id);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexImage2D(GL_TEXTURE_2D, 0, png->hasAlpha ? GL_RGBA : GL_RGB, png->width, png->height,
0, png->hasAlpha ? GL_RGBA : GL_RGB, GL_UNSIGNED_BYTE, png->data);
glError()
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, aRepeatHorizontal ? GL_REPEAT : GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, aRepeatVertical ? GL_REPEAT : GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// Mipmaps can only be generated if the texture size is a power of 2
if(_isPowerOfTwo(png->width) && _isPowerOfTwo(png->height) && !aRepeatHorizontal && !aRepeatVertical) {
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
glGenerateMipmap(GL_TEXTURE_2D);
} else {
dynamo_assert(!( (!_isPowerOfTwo(png->width) || !_isPowerOfTwo(png->height))
&& (aRepeatHorizontal || aRepeatVertical) ),
"Repeating textures must have power of 2 dimensions");
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
glError()
out->size = vec2_create(png->width, png->height);
out->pxAlignInset = vec2_create(
(1.0f/out->size.w) * 0.5,
(1.0f/out->size.h) * 0.5
);
return out;
}
Shader_t *shader_load(const char *aVertSrc, const char *aFragSrc)
{
Shader_t *out = obj_create_autoreleased(&Class_Shader);
out->activationCallback = NULL;
out->deactivationCallback = NULL;
for(int i = 0; i < kShader_MaxUniforms; ++i) out->uniforms[i] = -1;
for(int i = 0; i < kShader_MaxAttributes; ++i) out->attributes[i] = -1;
out->program = glCreateProgram();
bool success;
GLuint vertexShader = _shader_compile(aVertSrc, GL_VERTEX_SHADER, &success);
dynamo_assert(success, "Couldn't compile vertex shader");
GLuint fragmentShader = _shader_compile(aFragSrc, GL_FRAGMENT_SHADER, &success);
dynamo_assert(success, "Couldn't compile fragment shader");
glAttachShader(out->program, vertexShader);
out->vertexShader = vertexShader;
glAttachShader(out->program, fragmentShader);
out->fragmentShader = fragmentShader;
success = _shader_link(out->program);
glError()
dynamo_assert(success, "Couldn't link shader program");
// Hook up the default uniforms&attributes if available
out->uniforms[kShader_worldMatrixUniform] = shader_getUniformLocation(out, kShader_UniformNames[kShader_worldMatrixUniform]);
out->uniforms[kShader_projectionMatrixUniform] = shader_getUniformLocation(out, kShader_UniformNames[kShader_projectionMatrixUniform]);
out->uniforms[kShader_colormap0Uniform] = shader_getUniformLocation(out, kShader_UniformNames[kShader_colormap0Uniform]);
out->attributes[kShader_positionAttribute] = shader_getAttributeLocation(out, kShader_AttributeNames[kShader_positionAttribute]);
out->attributes[kShader_texCoord0Attribute] = shader_getAttributeLocation(out, kShader_AttributeNames[kShader_texCoord0Attribute]);
return out;
}
WorldShape_t *worldShape_createPoly(unsigned aVertCount, vec2_t *aVerts)
{
WorldShape_t *out = obj_create_autoreleased(&Class_WorldShape);
out->cpShape = cpPolyShapeNew(NULL, aVertCount, (cpVect*)aVerts, cpvzero);
return out;
}
