mirror of
https://github.com/Ed94/Odin.git
synced 2026-08-03 05:08:14 +00:00
Better using; foreign system libraries; optional semicolons
This commit is contained in:
Ginger Bill
+89
-89
@@ -2,55 +2,55 @@
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#load "opengl.odin"
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#load "math.odin"
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TWO_HEARTS :: #rune "💕";
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TWO_HEARTS :: #rune "💕"
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win32_perf_count_freq := GetQueryPerformanceFrequency();
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win32_perf_count_freq := GetQueryPerformanceFrequency()
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time_now :: proc() -> f64 {
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if win32_perf_count_freq == 0 {
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debug_trap();
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debug_trap()
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}
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counter: i64;
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_ = QueryPerformanceCounter(^counter);
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result := counter as f64 / win32_perf_count_freq as f64;
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return result;
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counter: i64
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_ = QueryPerformanceCounter(^counter)
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result := counter as f64 / win32_perf_count_freq as f64
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return result
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}
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win32_print_last_error :: proc() {
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err_code := GetLastError() as int;
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err_code := GetLastError() as int
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if err_code != 0 {
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print_string("GetLastError: ");
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print_int(err_code);
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print_string("\n");
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print_string("GetLastError: ")
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print_int(err_code)
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print_string("\n")
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}
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}
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// Yuk!
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to_c_string :: proc(s: string) -> ^u8 {
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c_str: ^u8 = alloc(len(s)+1);
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memory_copy(c_str, ^s[0], len(s));
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ptr_offset(c_str, len(s))^ = 0;
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return c_str;
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c_str: ^u8 = alloc(len(s)+1)
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memory_copy(c_str, ^s[0], len(s))
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ptr_offset(c_str, len(s))^ = 0
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return c_str
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}
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Window :: type struct {
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width, height: int;
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wc: WNDCLASSEXA;
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dc: HDC;
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hwnd: HWND;
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opengl_context, rc: HGLRC;
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c_title: ^u8;
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width, height: int
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wc: WNDCLASSEXA
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dc: HDC
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hwnd: HWND
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opengl_context, rc: HGLRC
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c_title: ^u8
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}
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make_window :: proc(title: string, msg, height: int, window_proc: WNDPROC) -> (Window, bool) {
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w: Window;
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w.width, w.height = msg, height;
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w: Window
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w.width, w.height = msg, height
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class_name := "Win32-Odin-Window\x00";
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c_class_name := ^class_name[0];
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w.c_title = to_c_string(title);
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class_name := "Win32-Odin-Window\x00"
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c_class_name := ^class_name[0]
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w.c_title = to_c_string(title)
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instance := GetModuleHandleA(null);
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instance := GetModuleHandleA(null)
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w.wc = WNDCLASSEXA{
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size = size_of(WNDCLASSEXA) as u32,
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@@ -61,7 +61,7 @@ make_window :: proc(title: string, msg, height: int, window_proc: WNDPROC) -> (W
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};
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if RegisterClassExA(^w.wc) == 0 {
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return w, false;
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return w, false
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}
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w.hwnd = CreateWindowExA(0,
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@@ -69,14 +69,14 @@ make_window :: proc(title: string, msg, height: int, window_proc: WNDPROC) -> (W
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WS_VISIBLE | WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX,
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CW_USEDEFAULT, CW_USEDEFAULT,
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w.width as i32, w.height as i32,
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null, null, instance, null);
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null, null, instance, null)
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if w.hwnd == null {
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win32_print_last_error();
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return w, false;
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win32_print_last_error()
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return w, false
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}
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w.dc = GetDC(w.hwnd);
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w.dc = GetDC(w.hwnd)
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{
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pfd := PIXELFORMATDESCRIPTOR{
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@@ -89,126 +89,126 @@ make_window :: proc(title: string, msg, height: int, window_proc: WNDPROC) -> (W
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depth_bits = 24,
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stencil_bits = 8,
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layer_type = PFD_MAIN_PLANE,
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};
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}
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SetPixelFormat(w.dc, ChoosePixelFormat(w.dc, ^pfd), null);
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w.opengl_context = wglCreateContext(w.dc);
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wglMakeCurrent(w.dc, w.opengl_context);
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SetPixelFormat(w.dc, ChoosePixelFormat(w.dc, ^pfd), null)
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w.opengl_context = wglCreateContext(w.dc)
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wglMakeCurrent(w.dc, w.opengl_context)
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attribs := [8]i32{
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WGL_CONTEXT_MAJOR_VERSION_ARB, 2,
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WGL_CONTEXT_MINOR_VERSION_ARB, 1,
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WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
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0, // NOTE(bill): tells the proc that this is the end of attribs
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};
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}
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wgl_string := "wglCreateContextAttribsARB\x00";
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c_wgl_string := ^wgl_string[0];
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wglCreateContextAttribsARB := wglGetProcAddress(c_wgl_string) as wglCreateContextAttribsARBType;
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w.rc = wglCreateContextAttribsARB(w.dc, 0, ^attribs[0]);
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wglMakeCurrent(w.dc, w.rc);
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SwapBuffers(w.dc);
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wgl_string := "wglCreateContextAttribsARB\x00"
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c_wgl_string := ^wgl_string[0]
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wglCreateContextAttribsARB := wglGetProcAddress(c_wgl_string) as wglCreateContextAttribsARBType
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w.rc = wglCreateContextAttribsARB(w.dc, 0, ^attribs[0])
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wglMakeCurrent(w.dc, w.rc)
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SwapBuffers(w.dc)
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}
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return w, true;
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return w, true
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}
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destroy_window :: proc(w: ^Window) {
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heap_free(w.c_title);
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heap_free(w.c_title)
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}
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display_window :: proc(w: ^Window) {
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SwapBuffers(w.dc);
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SwapBuffers(w.dc)
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}
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Entity :: type struct {
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pos: Vec2;
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dim: Vec2;
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pos: Vec2
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dim: Vec2
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}
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run_game :: proc() {
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win32_proc :: proc(hwnd: HWND, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT #no_inline {
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if msg == WM_DESTROY || msg == WM_CLOSE || msg == WM_QUIT {
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ExitProcess(0);
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return 0;
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ExitProcess(0)
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return 0
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}
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return DefWindowProcA(hwnd, msg, wparam, lparam);
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return DefWindowProcA(hwnd, msg, wparam, lparam)
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}
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window, window_success := make_window("Odin Language Demo", 854, 480, win32_proc);
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window, window_success := make_window("Odin Language Demo", 854, 480, win32_proc)
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if !window_success {
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return;
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return
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}
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defer destroy_window(^window);
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defer destroy_window(^window)
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prev_time := time_now();
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running := true;
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prev_time := time_now()
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running := true
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pos := Vec2{100, 100};
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pos := Vec2{100, 100}
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for running {
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curr_time := time_now();
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dt := (curr_time - prev_time) as f32;
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prev_time = curr_time;
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curr_time := time_now()
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dt := (curr_time - prev_time) as f32
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prev_time = curr_time
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msg: MSG;
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msg: MSG
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for PeekMessageA(^msg, null, 0, 0, PM_REMOVE) > 0 {
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if msg.message == WM_QUIT {
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running = false;
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running = false
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}
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_ = TranslateMessage(^msg);
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_ = DispatchMessageA(^msg);
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_ = TranslateMessage(^msg)
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_ = DispatchMessageA(^msg)
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}
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if is_key_down(VK_ESCAPE) {
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running = false;
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running = false
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}
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{
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SPEED :: 500;
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v: Vec2;
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SPEED :: 500
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v: Vec2
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if is_key_down(VK_RIGHT) { v[0] += 1; }
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if is_key_down(VK_LEFT) { v[0] -= 1; }
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if is_key_down(VK_UP) { v[1] += 1; }
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if is_key_down(VK_DOWN) { v[1] -= 1; }
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if is_key_down(VK_RIGHT) { v[0] += 1 }
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if is_key_down(VK_LEFT) { v[0] -= 1 }
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if is_key_down(VK_UP) { v[1] += 1 }
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if is_key_down(VK_DOWN) { v[1] -= 1 }
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v = vec2_norm0(v);
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v = vec2_norm0(v)
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pos += v * Vec2{SPEED * dt};
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pos += v * Vec2{SPEED * dt}
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}
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glClearColor(0.5, 0.7, 1.0, 1.0);
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glClear(GL_COLOR_BUFFER_BIT);
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glClearColor(0.5, 0.7, 1.0, 1.0)
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glClear(GL_COLOR_BUFFER_BIT)
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glLoadIdentity();
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glLoadIdentity()
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glOrtho(0, window.width as f64,
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0, window.height as f64, 0, 1);
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0, window.height as f64, 0, 1)
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draw_rect :: proc(x, y, w, h: f32) {
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glBegin(GL_TRIANGLES);
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glBegin(GL_TRIANGLES)
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glColor3f(1, 0, 0); glVertex3f(x, y, 0);
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glColor3f(0, 1, 0); glVertex3f(x+w, y, 0);
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glColor3f(0, 0, 1); glVertex3f(x+w, y+h, 0);
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glColor3f(1, 0, 0); glVertex3f(x, y, 0)
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glColor3f(0, 1, 0); glVertex3f(x+w, y, 0)
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glColor3f(0, 0, 1); glVertex3f(x+w, y+h, 0)
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glColor3f(0, 0, 1); glVertex3f(x+w, y+h, 0);
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glColor3f(1, 1, 0); glVertex3f(x, y+h, 0);
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glColor3f(1, 0, 0); glVertex3f(x, y, 0);
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glColor3f(0, 0, 1); glVertex3f(x+w, y+h, 0)
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glColor3f(1, 1, 0); glVertex3f(x, y+h, 0)
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glColor3f(1, 0, 0); glVertex3f(x, y, 0)
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glEnd();
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glEnd()
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}
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draw_rect(pos[0], pos[1], 50, 50);
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draw_rect(pos[0], pos[1], 50, 50)
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display_window(^window);
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ms_to_sleep := (16 - 1000*dt) as i32;
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display_window(^window)
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ms_to_sleep := (16 - 1000*dt) as i32
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if ms_to_sleep > 0 {
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sleep_ms(ms_to_sleep);
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sleep_ms(ms_to_sleep)
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}
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}
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}
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