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https://github.com/enduro2d/enduro2d.git
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cube sample
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@@ -7,25 +7,254 @@
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#include "../common.hpp"
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using namespace e2d;
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namespace
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{
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const char* vs_source_cstr =
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"#version 120 \n"
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" \n"
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"attribute vec3 a_position; \n"
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"attribute vec2 a_uv; \n"
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"attribute vec4 a_color; \n"
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" \n"
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"uniform mat4 u_MVP; \n"
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" \n"
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"varying vec4 v_color; \n"
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"varying vec2 v_uv; \n"
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" \n"
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"void main(){ \n"
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" v_color = a_color; \n"
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" v_uv = a_uv; \n"
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" \n"
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" gl_Position = vec4(a_position, 1.0) * u_MVP; \n"
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"} \n";
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const char* fs_source_cstr =
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"#version 120 \n"
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" \n"
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"uniform sampler2D u_texture; \n"
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"varying vec4 v_color; \n"
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"varying vec2 v_uv; \n"
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" \n"
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"void main(){ \n"
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" vec2 uv = vec2(v_uv.s, 1.0 - v_uv.t); \n"
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" gl_FragColor = v_color * texture2D(u_texture, uv); \n"
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"} \n";
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struct vertex1 {
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v3f position;
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v2hu uv;
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static vertex_declaration decl() noexcept {
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return vertex_declaration()
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.add_attribute<v3f>("a_position")
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.add_attribute<v2hu>("a_uv");
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}
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};
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struct vertex2 {
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color32 color;
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static vertex_declaration decl() noexcept {
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return vertex_declaration()
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.add_attribute<color32>("a_color").normalized();
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}
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};
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array<u8,36> generate_cube_indices() noexcept {
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return {
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0, 1, 2,
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2, 3, 0,
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4, 5, 6,
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6, 7, 4,
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8, 9, 10,
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10, 11, 8,
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12, 13, 14,
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14, 15, 12,
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16, 17, 18,
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18, 19, 16,
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20, 21, 22,
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22, 23, 20};
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}
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array<vertex1,24> generate_cube_vertices(const v3f& size) noexcept {
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f32 x = size.x * 0.5f;
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f32 y = size.y * 0.5f;
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f32 z = size.z * 0.5f;
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return {
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vertex1{{-x, -y, -z}, {0, 1}},
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vertex1{{ x, -y, -z}, {1, 1}},
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vertex1{{ x, y, -z}, {1, 0}},
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vertex1{{-x, y, -z}, {0, 0}},
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vertex1{{-x, -y, z}, {0, 1}},
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vertex1{{ x, -y, z}, {1, 1}},
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vertex1{{ x, -y, -z}, {1, 0}},
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vertex1{{-x, -y, -z}, {0, 0}},
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vertex1{{ x, -y, z}, {0, 1}},
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vertex1{{-x, -y, z}, {1, 1}},
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vertex1{{-x, y, z}, {1, 0}},
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vertex1{{ x, y, z}, {0, 0}},
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vertex1{{-x, y, -z}, {0, 1}},
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vertex1{{ x, y, -z}, {1, 1}},
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vertex1{{ x, y, z}, {1, 0}},
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vertex1{{-x, y, z}, {0, 0}},
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vertex1{{ x, -y, -z}, {0, 1}},
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vertex1{{ x, -y, z}, {1, 1}},
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vertex1{{ x, y, z}, {1, 0}},
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vertex1{{ x, y, -z}, {0, 0}},
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vertex1{{-x, -y, z}, {0, 1}},
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vertex1{{-x, -y, -z}, {1, 1}},
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vertex1{{-x, y, -z}, {1, 0}},
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vertex1{{-x, y, z}, {0, 0}}};
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}
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array<vertex2,24> generate_cube_colors() noexcept {
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return {
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vertex2{color32::red()},
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vertex2{color32::green()},
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vertex2{color32::blue()},
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vertex2{color32::yellow()},
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vertex2{color32::red()},
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vertex2{color32::green()},
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vertex2{color32::blue()},
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vertex2{color32::yellow()},
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vertex2{color32::red()},
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vertex2{color32::green()},
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vertex2{color32::blue()},
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vertex2{color32::yellow()},
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vertex2{color32::red()},
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vertex2{color32::green()},
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vertex2{color32::blue()},
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vertex2{color32::yellow()},
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vertex2{color32::red()},
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vertex2{color32::green()},
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vertex2{color32::blue()},
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vertex2{color32::yellow()},
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vertex2{color32::red()},
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vertex2{color32::green()},
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vertex2{color32::blue()},
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vertex2{color32::yellow()}};
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}
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}
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int e2d_main() {
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modules::initialize<debug>();
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modules::initialize<input>();
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modules::initialize<window>(v2u{640, 480}, "Enduro2D", false);
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{
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modules::initialize<vfs>()
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.register_scheme<filesystem_file_source>("file");
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modules::initialize<debug>()
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.register_sink<debug_console_sink>();
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modules::initialize<input>();
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modules::initialize<window>(v2u{640, 480}, "Enduro2D", false)
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.register_event_listener<window_input_source>(the<input>());
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modules::initialize<render>(the<debug>(), the<window>());
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}
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{
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str resources;
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filesystem::extract_predef_path(resources, filesystem::predef_path::resources);
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the<vfs>().register_scheme_alias(
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"resources",
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url{"file", resources});
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the<vfs>().register_scheme<archive_file_source>(
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"piratepack",
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the<vfs>().open(url("resources://bin/kenney_piratepack.zip")));
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the<vfs>().register_scheme_alias("ships", url("piratepack://PNG/Retina/Ships"));
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}
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the<debug>().register_sink<debug_console_sink>();
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the<window>().register_event_listener<window_input_source>(the<input>());
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the<window>().register_event_listener<window_trace_event_listener>(the<debug>());
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auto texture = the<render>().create_texture(
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the<vfs>().open(url("ships://ship (3).png")));
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the<debug>()
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.trace("SAMPLE: window real size: %0", the<window>().real_size())
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.trace("SAMPLE: window virtual size: %0", the<window>().virtual_size())
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.trace("SAMPLE: window framebuffer size: %0", the<window>().framebuffer_size());
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const auto shader = the<render>().create_shader(
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make_memory_stream(buffer(vs_source_cstr, std::strlen(vs_source_cstr))),
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make_memory_stream(buffer(fs_source_cstr, std::strlen(fs_source_cstr))));
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const auto indices = generate_cube_indices();
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const auto index_buffer = the<render>().create_index_buffer(
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buffer(indices.data(), indices.size() * sizeof(indices[0])),
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index_declaration(index_declaration::index_type::unsigned_byte),
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index_buffer::usage::static_draw);
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const auto vertices1 = generate_cube_vertices(make_vec3(1.f));
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const auto vertex_buffer1 = the<render>().create_vertex_buffer(
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buffer(vertices1.data(), vertices1.size() * sizeof(vertices1[0])),
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vertex1::decl(),
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vertex_buffer::usage::static_draw);
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const auto vertices2 = generate_cube_colors();
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const auto vertex_buffer2 = the<render>().create_vertex_buffer(
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buffer(vertices2.data(), vertices2.size() * sizeof(vertices2[0])),
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vertex2::decl(),
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vertex_buffer::usage::static_draw);
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if ( !texture || !shader || !index_buffer || !vertex_buffer1 || !vertex_buffer2 ) {
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return 1;
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}
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auto material = render::material()
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.add_pass(render::pass_state()
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.states(render::state_block()
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.capabilities(render::capabilities_state()
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.culling(true)
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.depth_test(true))
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.culling(render::culling_state()
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.mode(render::culling_mode::ccw)
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.face(render::culling_face::back)))
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.shader(shader)
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.properties(render::property_block()
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.sampler("u_texture", render::sampler_state()
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.texture(texture)
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.min_filter(render::sampler_min_filter::linear)
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.mag_filter(render::sampler_mag_filter::linear))));
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auto geometry = render::geometry()
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.indices(index_buffer)
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.add_vertices(vertex_buffer1)
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.add_vertices(vertex_buffer2);
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const auto begin_game_time = time::now_ms();
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const auto framebuffer_size = the<window>().real_size().cast_to<f32>();
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const auto projection = math::make_perspective_lh_matrix4(
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make_deg(45.f),
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framebuffer_size.x / framebuffer_size.y,
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0.1f,
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100.f);
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const keyboard& k = the<input>().keyboard();
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while ( !the<window>().should_close() && !k.is_key_just_released(keyboard_key::escape) ) {
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const auto game_time = (time::now_ms() - begin_game_time).cast_to<f32>().value;
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const auto MVP =
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math::make_rotation_matrix4(make_rad(game_time) * 0.001f, 1.f, 0.f, 0.f) *
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math::make_rotation_matrix4(make_rad(game_time) * 0.001f, 0.f, 1.f, 0.f) *
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math::make_rotation_matrix4(make_rad(game_time) * 0.001f, 0.f, 0.f, 1.f) *
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math::make_translation_matrix4(0.f,0.f,3.f) *
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projection;
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material.properties()
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.property("u_time", game_time)
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.property("u_MVP", MVP);
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the<render>()
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.clear_depth_buffer(1.f)
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.clear_stencil_buffer(0)
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.clear_color_buffer({1.f, 0.4f, 0.f, 1.f})
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.draw(material, geometry);
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the<window>().swap_buffers(true);
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the<input>().frame_tick();
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window::poll_events();
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}
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return 0;
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}
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