void templateAppDraw( void ) {
glClearColor( 0.5f, 0.5f, 0.5f, 1.0f );
glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT );
GFX_set_matrix_mode( MODELVIEW_MATRIX );
GFX_load_identity(); {
vec3 e = { 0.0f, -4.0f, 0.0f },
c = { 0.0f, 0.0f, 0.0f },
u = { 0.0f, 0.0f, 1.0f };
GFX_look_at( &e, &c, &u );
}
glBindVertexArrayOES( objmesh->vao );
if( auto_rotate ) rot_angle.z += 2.0f;
GFX_rotate( rot_angle.x, 1.0f, 0.0f, 0.0f );
GFX_rotate( rot_angle.z, 0.0f, 0.0f, 1.0f );
PROGRAM_draw( program );
glDrawElements( GL_TRIANGLES,
objmesh->objtrianglelist[ 0 ].n_indice_array,
GL_UNSIGNED_SHORT,
( void * )NULL );
}
void templateAppDraw( void ) {
glClearColor( 0.5f, 0.5f, 0.5f, -1.0f );
glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT );
GFX_set_matrix_mode( MODELVIEW_MATRIX );
//创建一个关键矩阵，并在Y轴上设置一个向后的偏移量，以便能够看到模型
GFX_load_identity(); {
vec3 e = { 0.0f, -4.0f, 0.0f },
c = { 0.0f, 0.0f, 0.0f },
u = { 0.0f, 0.0f, 1.0f };
GFX_look_at( &e, &c, &u );
}
//绑定VAO
glBindVertexArrayOES( objmesh->vao );
if (auto_rotate)
rot_angle.z += 2.0f;
GFX_rotate(rot_angle.x, 1.0f, 0.0f, 0.0f);
GFX_rotate(rot_angle.z, 0.0f, 0.0f, 1.0f);
//设置绘制的着色器程序（自动使用glUseProgram绑定到着色器程序，然后发送program_draw_callback中执行指针，调用该函数）
PROGRAM_draw( program );
//绘图语句
glDrawElements( GL_TRIANGLES,
objmesh->objtrianglelist[ 0 ].n_indice_array,
GL_UNSIGNED_SHORT,
( void * )NULL );
}
void templateAppInit(int width, int height)
{
GFX_start();
glViewport(0.0f, 0.0f, width, height);
GFX_set_matrix_mode(PROJECTION_MATRIX);
GFX_load_identity();
GFX_set_perspective(80.0f, (float)width / (float)height, 0.1f, 100.0f, -90.0f);
obj = OBJ_load(OBJ_FILE, 1);
unsigned int i = 0;
while (i != obj->n_objmesh) {
OBJ_optimize_mesh(obj, i, 128);
OBJ_build_mesh(obj, i);
OBJ_free_mesh_vertex_data(obj, i);
++i;
}
i = 0;
while (i != obj->n_texture) {
OBJ_build_texture(obj, i, obj->texture_path, TEXTURE_MIPMAP | TEXTURE_16_BITS, TEXTURE_FILTER_2X, 0.0f);
++i;
}
i = 0;
while (i != obj->n_objmaterial) {
OBJ_build_material(obj, i, NULL);
++i;
}
program = PROGRAM_create((char *)"default", VERTEX_SHADER, FRAGMENT_SHADER, 1, 0, program_bind_attrib_location, NULL);
PROGRAM_draw(program);
glUniform1i(PROGRAM_get_uniform_location(program, (char *)"DIFFUSE"), 1);
}
void templateAppInit( int width, int height ) {
atexit( templateAppExit );
GFX_start();
init_physic_world();
gContactAddedCallback = contact_added_callback;
glViewport( 0.0f, 0.0f, width, height );
GFX_set_matrix_mode( PROJECTION_MATRIX );
GFX_load_identity();
GFX_set_perspective( 45.0f,
( float )width / ( float )height,
0.1f,
100.0f,
-90.0f );
obj = OBJ_load( OBJ_FILE, 1 );
unsigned int i = 0;
while( i != obj->n_objmesh ) {
OBJ_build_mesh( obj, i );
OBJMESH *objmesh = &obj->objmesh[ i ];
if( !strcmp( objmesh->name, "Cube" ) )
{
objmesh->rotation.x =
objmesh->rotation.y =
objmesh->rotation.z = 35.0f;
add_rigid_body( objmesh, 1.0f );
}
else add_rigid_body( objmesh, 0.0f );
OBJ_free_mesh_vertex_data( obj, i );
++i;
}
program = PROGRAM_create( ( char * )"default",
VERTEX_SHADER,
FRAGMENT_SHADER,
1,
0,
program_bind_attrib_location,
NULL );
PROGRAM_draw( program );
}
void load_game( void )
{
init_physic_world();
gContactAddedCallback = contact_added_callback;
obj = OBJ_load( OBJ_FILE, 1 );
unsigned int i = 0;
while( i != obj->n_objmesh ) {
OBJMESH *objmesh = &obj->objmesh[ i ];
OBJ_optimize_mesh( obj, i, 128 );
OBJ_build_mesh( obj, i );
OBJ_free_mesh_vertex_data( obj, i );
++i;
}
i = 0;
while( i != obj->n_texture ) {
OBJ_build_texture( obj,
i,
obj->texture_path,
TEXTURE_MIPMAP | TEXTURE_16_BITS,
TEXTURE_FILTER_2X,
0.0f );
++i;
}
program = PROGRAM_create( ( char * )"default",
VERTEX_SHADER,
FRAGMENT_SHADER,
1,
0,
program_bind_attrib_location,
NULL );
i = 0;
while( i != obj->n_objmaterial ) {
OBJ_build_material( obj, i, NULL );
++i;
}
PROGRAM_draw( program );
glUniform1i( PROGRAM_get_uniform_location( program, ( char * )"DIFFUSE" ), 1 );
}
void load_game(void)
{
init_physic_world();
gContactAddedCallback = contact_added_callback;
obj = OBJ_load(OBJ_FILE, 1);
unsigned int i = 0;
while (i != obj->n_objmesh) {
OBJMESH *objmesh = &obj->objmesh[i];
OBJ_optimize_mesh(obj, i, 128);
OBJ_build_mesh(obj, i);
if (strstr(objmesh->name, "momo"))
add_rigid_body(objmesh, SPHERE, 2.0f, 0);
else if (strstr(objmesh->name, "barrel"))
add_rigid_body(objmesh, CYLINDER, 1.0f, 0);
else if (strstr(objmesh->name, "plank"))
add_rigid_body(objmesh, BOX, 1.0f, 0);
else if (strstr(objmesh->name, "ground"))
add_rigid_body(objmesh, BOX, 0.0f, 0);
else if (strstr(objmesh->name, "steel"))
add_rigid_body(objmesh, CYLINDER, 0.0f, 0);
else if (strstr(objmesh->name, "banana")) {
add_rigid_body(objmesh, SPHERE, 1.0f, 1);
objmesh->btrigidbody->setCollisionFlags(objmesh->btrigidbody->getCollisionFlags() | btCollisionObject::CF_CUSTOM_MATERIAL_CALLBACK);
objmesh->btrigidbody->forceActivationState(ISLAND_SLEEPING);
++banana;
} else if (strstr(objmesh->name, "gameover")) {
objmesh->visible = 0;
gameover = objmesh;
}
OBJ_free_mesh_vertex_data(obj, i);
++i;
}
i = 0;
while (i != obj->n_texture) {
OBJ_build_texture(obj, i, obj->texture_path, TEXTURE_MIPMAP | TEXTURE_16_BITS, TEXTURE_FILTER_2X, 0.0f);
++i;
}
program = PROGRAM_create((char *)"default", VERTEX_SHADER, FRAGMENT_SHADER, 1, 0, program_bind_attrib_location, NULL);
i = 0;
while (i != obj->n_objmaterial) {
OBJ_build_material(obj, i, NULL);
++i;
}
PROGRAM_draw(program);
glUniform1i(PROGRAM_get_uniform_location(program, (char *)"DIFFUSE"), 1);
momo_index = 0;
center.x = eye.x = 3.5f;
get_next_momo();
}
void templateAppInit(int width, int height)
{
GFX_start();
glViewport(0.0f, 0.0f, width, height);
GFX_set_matrix_mode(PROJECTION_MATRIX);
GFX_load_identity();
GFX_set_perspective(45.0f, (float)width / (float)height, 0.1f, 100.0f, -90.0f);
obj = OBJ_load(OBJ_FILE, 1);
unsigned int i = 0;
while (i != obj->n_objmesh) {
OBJ_build_mesh(obj, i);
OBJ_free_mesh_vertex_data(obj, i);
++i;
}
program = PROGRAM_create((char *)"default", VERTEX_SHADER, FRAGMENT_SHADER, 1, 0, program_bind_attrib_location, NULL);
PROGRAM_draw(program);
}
void templateAppDraw(void)
{
glClearColor(0.5f, 0.5f, 0.5f, 1.0f);
glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
GFX_set_matrix_mode(MODELVIEW_MATRIX);
GFX_load_identity();
if (view_delta.x || view_delta.y) {
if (view_delta.y)
next_rotz -= view_delta.y;
if (view_delta.x) {
next_rotx -= view_delta.x;
next_rotx = CLAMP(next_rotx, 0.0f, 90.0f);
}
view_delta.x = view_delta.y = 0.0f;
}
rotx = rotx * 0.9f + next_rotx * 0.1f;
rotz = rotz * 0.9f + next_rotz * 0.1f;
eye.x = center.x + distance * cosf(rotx * DEG_TO_RAD) * sinf(rotz * DEG_TO_RAD);
eye.y = center.y - distance * cosf(rotx * DEG_TO_RAD) * cosf(rotz * DEG_TO_RAD);
eye.z = center.z + distance * sinf(rotx * DEG_TO_RAD);
rotx = rotx * 0.9f + next_rotx * 0.1f;
rotz = rotz * 0.9f + next_rotz * 0.1f;
center.x = maze->location.x;
center.y = maze->location.y;
center.z = maze->location.z;
GFX_look_at(&eye, ¢er, &up);
PROGRAM_draw(program);
glUniform1i(PROGRAM_get_uniform_location(program, (char *)"DIFFUSE"), 1);
unsigned int i = 0;
while (i != obj->n_objmesh) {
OBJMESH *objmesh = &obj->objmesh[i];
GFX_push_matrix();
mat4 mat;
objmesh->btrigidbody->getWorldTransform().getOpenGLMatrix((float *)&mat);
memcpy(&objmesh->location, (vec3 *) & mat.m[3], sizeof(vec3));
GFX_multiply_matrix(&mat);
glUniformMatrix4fv(PROGRAM_get_uniform_location(program, (char *)"MODELVIEWPROJECTIONMATRIX"), 1, GL_FALSE, (float *)GFX_get_modelview_projection_matrix());
OBJ_draw_mesh(obj, i);
GFX_pop_matrix();
++i;
}
NAVIGATION_draw(navigation);
dynamicsworld->stepSimulation(1.0f / 60.0f);
}
void templateAppDraw( void ) {
glClearColor( 0.5f, 0.5f, 0.5f, 1.0f );
glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT );
GFX_set_matrix_mode( MODELVIEW_MATRIX );
GFX_load_identity();
if( view_delta.x || view_delta.y ) {
if( view_delta.y ) next_rotz -= view_delta.y;
if( view_delta.x ) {
next_rotx -= view_delta.x;
next_rotx = CLAMP( next_rotx, 0.0f, 90.0f );
}
view_delta.x =
view_delta.y = 0.0f;
}
rotx = rotx * 0.9f + next_rotx * 0.1f;
rotz = rotz * 0.9f + next_rotz * 0.1f;
eye.x = center.x +
distance *
cosf( rotx * DEG_TO_RAD ) *
sinf( rotz * DEG_TO_RAD );
eye.y = center.y -
distance *
cosf( rotx * DEG_TO_RAD ) *
cosf( rotz * DEG_TO_RAD );
eye.z = center.z +
distance *
sinf( rotx * DEG_TO_RAD );
rotx = rotx * 0.9f + next_rotx * 0.1f;
rotz = rotz * 0.9f + next_rotz * 0.1f;
center.x = maze->location.x;
center.y = maze->location.y;
center.z = maze->location.z;
GFX_look_at( &eye,
¢er,
&up );
if( double_tap ) {
vec3 location;
if( GFX_unproject( view_location.x,
viewport_matrix[ 3 ] - view_location.y,
1.0f,
GFX_get_modelview_matrix(),
GFX_get_projection_matrix(),
viewport_matrix,
&location.x,
&location.y,
&location.z ) ) {
btVector3 ray_from( eye.x,
eye.y,
eye.z ),
ray_to( location.x + eye.x,
location.y + eye.y,
location.z + eye.z );
btCollisionWorld::ClosestRayResultCallback collision_ray( ray_from,
ray_to );
dynamicsworld->rayTest( ray_from,
ray_to,
collision_ray );
if( collision_ray.hasHit() &&
collision_ray.m_collisionObject == maze->btrigidbody ) {
collision_ray.m_hitNormalWorld.normalize();
if( collision_ray.m_hitNormalWorld.z() == 1.0f ) {
navigationpath_player.start_location.x = player->location.x;
navigationpath_player.start_location.y = player->location.y;
navigationpath_player.start_location.z = player->location.z;
navigationpath_player.end_location.x = collision_ray.m_hitPointWorld.x();
navigationpath_player.end_location.y = collision_ray.m_hitPointWorld.y();
navigationpath_player.end_location.z = collision_ray.m_hitPointWorld.z();
if( NAVIGATION_get_path( navigation,
&navigationpath_player,
&navigationpathdata_player ) ) {
player_next_point = 1;
unsigned int i = 0;
while( i != navigationpathdata_player.path_point_count + 1 ) {
console_print( "%d: %f %f %f\n",
i,
navigationpathdata_player.path_point_array[ i ].x,
navigationpathdata_player.path_point_array[ i ].y,
navigationpathdata_player.path_point_array[ i ].z );
++i;
}
printf( "\n" );
}
}
}
}
double_tap = 0;
}
if( navigationpathdata_player.path_point_count ) {
move_entity( player,
&navigationpathdata_player,
&player_next_point,
3.0f );
}
PROGRAM_draw( program );
glUniform1i( PROGRAM_get_uniform_location( program, ( char * )"DIFFUSE" ), 1 );
unsigned int i = 0;
while( i != obj->n_objmesh ) {
OBJMESH *objmesh = &obj->objmesh[ i ];
GFX_push_matrix();
mat4 mat;
objmesh->btrigidbody->getWorldTransform().getOpenGLMatrix( ( float * )&mat );
memcpy( &objmesh->location, ( vec3 * )&mat.m[ 3 ], sizeof( vec3 ) );
GFX_multiply_matrix( &mat );
glUniformMatrix4fv( PROGRAM_get_uniform_location( program, ( char * )"MODELVIEWPROJECTIONMATRIX" ),
1,
GL_FALSE,
( float * )GFX_get_modelview_projection_matrix() );
OBJ_draw_mesh( obj, i );
GFX_pop_matrix();
++i;
}
NAVIGATION_draw( navigation );
dynamicsworld->stepSimulation( 1.0f / 60.0f );
}
void draw_navigation_points( NAVIGATIONPATHDATA *navigationpathdata, vec3 *color )
{
unsigned int i = 0;
while( i != navigationpathdata->path_point_count + 1 )
{
navigationpathdata->path_point_array[ i ].z = 1.0f;
++i;
}
glBindVertexArrayOES( 0 );
glBindBuffer( GL_ARRAY_BUFFER, 0 );
glEnable( GL_BLEND );
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
if( !path_point )
{
path_point = PROGRAM_create( ( char * )"path_point",
( char * )"point_vert.glsl",
( char * )"point_frag.glsl",
1,
0,
program_bind_attrib_location,
NULL );
}
PROGRAM_draw( path_point );
glUniformMatrix4fv( PROGRAM_get_uniform_location(
path_point,
( char * )"MODELVIEWPROJECTIONMATRIX" ),
1,
GL_FALSE,
( float * )GFX_get_modelview_projection_matrix() );
glUniform3fv( PROGRAM_get_uniform_location(
path_point,
( char * )"COLOR" ),
1,
( float * )color );
glEnableVertexAttribArray( 0 );
glVertexAttribPointer( 0,
3,
GL_FLOAT,
GL_FALSE,
0,
navigationpathdata->path_point_array );
glDrawArrays( GL_POINTS,
0,
navigationpathdata->path_point_count + 1 );
glDrawArrays( GL_LINE_STRIP,
0,
navigationpathdata->path_point_count + 1 );
glDisable( GL_BLEND );
}
/*!
Helper function to debug draw the navigation mesh. Call this function at the end of your
rendering loop to overlay the navigation mesh on top of your current scene.
\param[in] navigation A valid NAVIGATION structure pointer.
*/
void NAVIGATION_draw( NAVIGATION *navigation )
{
if( !navigation->program )
{
navigation->program = PROGRAM_init( navigation->name );
navigation->program->vertex_shader = SHADER_init( navigation->name, GL_VERTEX_SHADER );
SHADER_compile( navigation->program->vertex_shader,
"uniform highp mat4 MODELVIEWPROJECTIONMATRIX;"
"attribute highp vec3 POSITION;"
"void main( void ) {"
"gl_Position = MODELVIEWPROJECTIONMATRIX * vec4( POSITION, 1.0 ); }",
0 );
navigation->program->fragment_shader = SHADER_init( navigation->name, GL_FRAGMENT_SHADER );
SHADER_compile( navigation->program->fragment_shader,
"void main( void ) {"
"gl_FragColor = vec4( 0.25, 0.5, 1.0, 0.65 ); }",
0 );
PROGRAM_link( navigation->program, 0 );
}
char vertex_attribute = PROGRAM_get_vertex_attrib_location( navigation->program,
( char * )"POSITION" );
glBindVertexArrayOES( 0 );
glBindBuffer( GL_ARRAY_BUFFER, 0 );
glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, 0 );
glEnable( GL_BLEND );
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
PROGRAM_draw( navigation->program );
glUniformMatrix4fv( PROGRAM_get_uniform_location( navigation->program, ( char * )"MODELVIEWPROJECTIONMATRIX"),
1,
GL_FALSE,
( float * )GFX_get_modelview_projection_matrix() );
glEnableVertexAttribArray( vertex_attribute );
unsigned int j = 0;
while( j != navigation->dtnavmesh->getMaxTiles() )
{
dtMeshTile *_dtMeshTile = navigation->dtnavmesh->getTile( j );
if( !_dtMeshTile->header )
{ continue; }
unsigned int k = 0;
while( k != _dtMeshTile->header->polyCount )
{
dtPoly *_dtPoly = &_dtMeshTile->polys[ k ];
if( _dtPoly->type == DT_POLYTYPE_OFFMESH_CONNECTION )
{ continue; }
else
{
dtPolyDetail* pd = &_dtMeshTile->detailMeshes[ k ];
unsigned int l = 0;
while( l != pd->triCount )
{
vec3 v[ 3 ];
const unsigned char *t = &_dtMeshTile->detailTris[ ( pd->triBase + l ) << 2 ];
int m = 2;
while( m != -1 )
{
if( t[ m ] < _dtPoly->vertCount )
{
memcpy( &v[ m ],
&_dtMeshTile->verts[ _dtPoly->verts[ t[ m ] ] * 3 ],
sizeof( vec3 ) );
recast_to_vec3( &v[ m ] );
}
else
{
memcpy( &v[ m ],
&_dtMeshTile->detailVerts[ ( pd->vertBase + t[ m ] - _dtPoly->vertCount ) * 3 ],
sizeof( vec3 ) );
recast_to_vec3( &v[ m ] );
}
--m;
}
glVertexAttribPointer( 0, 3, GL_FLOAT, GL_FALSE, 0, ( float * )v );
glDrawArrays( GL_TRIANGLES, 0, 3 );
++l;
}
}
++k;
}
++j;
}
glDisable( GL_BLEND );
}
void templateAppDraw( void ) {
glClearColor( 0.5f, 0.5f, 0.5f, 1.0f );
glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT );
GFX_set_matrix_mode( PROJECTION_MATRIX );
GFX_load_identity();
GFX_set_perspective( 80.0f,
( float )viewport_matrix[ 2 ] / ( float )viewport_matrix[ 3 ],
1.0f,
1000.0f,
-90.0f );
if( game_over == 2 ) {
templateAppExit();
load_game();
game_over = 0;
}
GFX_set_matrix_mode( MODELVIEW_MATRIX );
GFX_load_identity();
if( view_delta.x || view_delta.y ) {
if( view_delta.y ) next_rotz -= view_delta.y;
if( view_delta.x ) {
next_rotx -= view_delta.x;
next_rotx = CLAMP( next_rotx, 0.0f, 90.0f );
}
view_delta.x =
view_delta.y = 0.0f;
}
rotx = rotx * 0.9f + next_rotx * 0.1f;
rotz = rotz * 0.9f + next_rotz * 0.1f;
eye.x = center.x +
distance *
cosf( rotx * DEG_TO_RAD ) *
sinf( rotz * DEG_TO_RAD );
eye.y = center.y -
distance *
cosf( rotx * DEG_TO_RAD ) *
cosf( rotz * DEG_TO_RAD );
eye.z = center.z +
distance *
sinf( rotx * DEG_TO_RAD );
rotx = rotx * 0.9f + next_rotx * 0.1f;
rotz = rotz * 0.9f + next_rotz * 0.1f;
center.x = maze->location.x;
center.y = maze->location.y;
center.z = maze->location.z;
GFX_look_at( &eye,
¢er,
&up );
if( double_tap ) {
vec3 location;
if( GFX_unproject( view_location.x,
viewport_matrix[ 3 ] - view_location.y,
1.0f,
GFX_get_modelview_matrix(),
GFX_get_projection_matrix(),
viewport_matrix,
&location.x,
&location.y,
&location.z ) ) {
btVector3 ray_from( eye.x,
eye.y,
eye.z ),
ray_to( location.x + eye.x,
location.y + eye.y,
location.z + eye.z );
btCollisionWorld::ClosestRayResultCallback collision_ray( ray_from,
ray_to );
dynamicsworld->rayTest( ray_from,
ray_to,
collision_ray );
if( collision_ray.hasHit() &&
collision_ray.m_collisionObject == maze->btrigidbody ) {
collision_ray.m_hitNormalWorld.normalize();
if( collision_ray.m_hitNormalWorld.z() == 1.0f ) {
navigationpath_player.start_location.x = player->location.x;
navigationpath_player.start_location.y = player->location.y;
navigationpath_player.start_location.z = player->location.z;
navigationpath_player.end_location.x = collision_ray.m_hitPointWorld.x();
navigationpath_player.end_location.y = collision_ray.m_hitPointWorld.y();
navigationpath_player.end_location.z = collision_ray.m_hitPointWorld.z();
if( NAVIGATION_get_path( navigation,
&navigationpath_player,
&navigationpathdata_player ) ) {
player_next_point = 1;
unsigned int i = 0;
while( i != navigationpathdata_player.path_point_count + 1 ) {
console_print( "%d: %f %f %f\n",
i,
navigationpathdata_player.path_point_array[ i ].x,
navigationpathdata_player.path_point_array[ i ].y,
navigationpathdata_player.path_point_array[ i ].z );
++i;
}
printf( "\n" );
}
}
}
}
double_tap = 0;
}
if( navigationpathdata_player.path_point_count ) {
vec3 color = { 0.0f, 0.0f, 1.0f };
draw_navigation_points( &navigationpathdata_player, &color );
move_entity( player,
&navigationpathdata_player,
&player_next_point,
3.0f );
}
static unsigned int start_time = get_milli_time();
if( get_milli_time() - start_time > 1000 ) {
navigationpath_enemy.start_location.x = enemy->location.x;
navigationpath_enemy.start_location.y = enemy->location.y;
navigationpath_enemy.start_location.z = enemy->location.z;
navigationpath_enemy.end_location.x = player->location.x;
navigationpath_enemy.end_location.y = player->location.y;
navigationpath_enemy.end_location.z = player->location.z;
NAVIGATION_get_path( navigation,
&navigationpath_enemy,
&navigationpathdata_enemy );
enemy_next_point = 1;
start_time = get_milli_time();
}
if( navigationpathdata_enemy.path_point_count ) {
vec3 color = { 1.0f, 0.0f, 0.0f };
move_entity( enemy,
&navigationpathdata_enemy,
&enemy_next_point,
4.0f );
draw_navigation_points( &navigationpathdata_enemy, &color );
}
PROGRAM_draw( program );
glUniform1i( PROGRAM_get_uniform_location( program, ( char * )"DIFFUSE" ), 1 );
unsigned int i = 0;
while( i != obj->n_objmesh ) {
OBJMESH *objmesh = &obj->objmesh[ i ];
GFX_push_matrix();
mat4 mat;
objmesh->btrigidbody->getWorldTransform().getOpenGLMatrix( ( float * )&mat );
memcpy( &objmesh->location, ( vec3 * )&mat.m[ 3 ], sizeof( vec3 ) );
GFX_multiply_matrix( &mat );
glUniformMatrix4fv( PROGRAM_get_uniform_location( program, ( char * )"MODELVIEWPROJECTIONMATRIX" ),
1,
GL_FALSE,
( float * )GFX_get_modelview_projection_matrix() );
OBJ_draw_mesh( obj, i );
GFX_pop_matrix();
++i;
}
if( !game_over ) dynamicsworld->stepSimulation( 1.0f / 60.0f );
else {
GFX_set_matrix_mode( PROJECTION_MATRIX );
GFX_load_identity();
float half_width =
( float )viewport_matrix[ 2 ] * 0.5f,
half_height =
( float )viewport_matrix[ 3 ] * 0.5f;
GFX_set_orthographic_2d( -half_width,
half_width,
-half_height,
half_height );
GFX_rotate( -90.0f, 0.0f, 0.0f, 1.0f );
GFX_translate( -half_height, -half_width, 0.0f );
GFX_set_matrix_mode( MODELVIEW_MATRIX );
GFX_load_identity();
vec4 color = { 0.0f, 0.0f, 0.0f, 1.0f };
char msg[ MAX_CHAR ] = {"GAME OVER!"};
if( !font ) {
font = FONT_init( ( char * )"foo.ttf" );
FONT_load( font,
font->name,
1,
64.0f,
512,
512,
32,
96 );
}
float posx = ( viewport_matrix[ 3 ] * 0.5f ) -
( FONT_length( font, msg ) * 0.5f ),
posy = viewport_matrix[ 2 ] - font->font_size;
FONT_print( font,
posx + 4.0f,
posy - 4.0f,
msg,
&color );
color.y = 1.0f;
FONT_print( font,
posx,
posy,
msg,
&color );
}
}
void FONT_print( FONT *font, float x, float y, char *text, vec4 *color )
{
char vertex_attribute = PROGRAM_get_vertex_attrib_location( font->program,
( char * )"POSITION" ),
texcoord_attribute = PROGRAM_get_vertex_attrib_location( font->program,
( char * )"TEXCOORD0" );
glBindVertexArrayOES( 0 );
glBindBuffer( GL_ARRAY_BUFFER, 0 );
glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, 0 );
glDisable( GL_CULL_FACE );
glDisable( GL_DEPTH_TEST );
glDepthMask( GL_FALSE );
glEnable( GL_BLEND );
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
PROGRAM_draw( font->program );
glUniformMatrix4fv( PROGRAM_get_uniform_location( font->program, ( char * )"MODELVIEWPROJECTIONMATRIX"),
1,
GL_FALSE,
( float * )GFX_get_modelview_projection_matrix() );
glUniform1i( PROGRAM_get_uniform_location( font->program, ( char * )"DIFFUSE" ), 0 );
if( color ) glUniform4fv( PROGRAM_get_uniform_location( font->program, ( char * )"COLOR" ), 1, ( float * )color );
glActiveTexture( GL_TEXTURE0 );
glBindTexture( GL_TEXTURE_2D, font->tid );
glEnableVertexAttribArray( vertex_attribute );
glEnableVertexAttribArray( texcoord_attribute );
while( *text )
{
if( *text >= font->first_character &&
*text <= ( font->first_character + font->count_character ) )
{
vec2 vert[ 4 ];
vec2 uv[ 4 ];
stbtt_aligned_quad quad;
stbtt_bakedchar *bakedchar = font->character_data + ( *text - font->first_character );
int round_x = STBTT_ifloor( x + bakedchar->xoff );
int round_y = STBTT_ifloor( y - bakedchar->yoff );
quad.x0 = ( float )round_x;
quad.y0 = ( float )round_y;
quad.x1 = ( float )round_x + bakedchar->x1 - bakedchar->x0;
quad.y1 = ( float )round_y - bakedchar->y1 + bakedchar->y0;
quad.s0 = bakedchar->x0 / ( float )font->texture_width;
quad.t0 = bakedchar->y0 / ( float )font->texture_width;
quad.s1 = bakedchar->x1 / ( float )font->texture_height;
quad.t1 = bakedchar->y1 / ( float )font->texture_height;
x += bakedchar->xadvance;
vert[ 0 ].x = quad.x1; vert[ 0 ].y = quad.y0;
uv [ 0 ].x = quad.s1; uv [ 0 ].y = quad.t0;
vert[ 1 ].x = quad.x0; vert[ 1 ].y = quad.y0;
uv [ 1 ].x = quad.s0; uv [ 1 ].y = quad.t0;
vert[ 2 ].x = quad.x1; vert[ 2 ].y = quad.y1;
uv [ 2 ].x = quad.s1; uv [ 2 ].y = quad.t1;
vert[ 3 ].x = quad.x0; vert[ 3 ].y = quad.y1;
uv [ 3 ].x = quad.s0; uv [ 3 ].y = quad.t1;
glVertexAttribPointer( vertex_attribute,
2,
GL_FLOAT,
GL_FALSE,
0,
( float * )&vert[ 0 ] );
glVertexAttribPointer( texcoord_attribute,
2,
GL_FLOAT,
GL_FALSE,
0,
( float * )&uv[ 0 ] );
glDrawArrays( GL_TRIANGLE_STRIP, 0, 4 );
}
++text;
}
glEnable( GL_CULL_FACE );
glEnable( GL_DEPTH_TEST );
glDepthMask( GL_TRUE );
glDisable( GL_BLEND );
}
