MiMoEngine ASM: x86-64 MASM汇编+C混合架构游戏引擎

核心热路径(数学/内存/字符串/性能分析)用MASM汇编(SSE/AVX2)
外围系统(窗口/渲染/ECS/音频/UI/脚本)用C语言
含自研编辑器、VisualScript积木编程、中文渲染(glyph_atlas)

Engine/Input/input.c

@@ -0,0 +1,137 @@
+#include "input.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+static float normalize_trigger(BYTE value) {
+    return value / 255.0f;
+}
+
+static float normalize_axis(SHORT value) {
+    if (value > XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE) {
+        return (value - XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE) / (32767.0f - XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE);
+    } else if (value < -XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE) {
+        return (value + XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE) / (32767.0f - XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE);
+    }
+    return 0.0f;
+}
+
+Input* input_create(void) {
+    Input* input = (Input*)calloc(1, sizeof(Input));
+    input->deadzone = 0.2f;
+    return input;
+}
+
+void input_destroy(Input* input) {
+    free(input);
+}
+
+void input_update(Input* input) {
+    memcpy(input->key_prev, input->key_states, sizeof(int) * MAX_KEYS);
+    memcpy(input->mouse_prev, input->mouse_buttons, sizeof(int) * 3);
+
+    input->mouse_dx = 0;
+    input->mouse_dy = 0;
+    input->mouse_scroll = 0;
+
+    memcpy(&input->gamepad_prev, &input->gamepad_state, sizeof(XINPUT_STATE));
+    input->gamepad_connected = (XInputGetState(0, &input->gamepad_state) == ERROR_SUCCESS);
+}
+
+void input_process_key(Input* input, int key, int down) {
+    if (key >= 0 && key < MAX_KEYS) {
+        input->key_states[key] = down;
+    }
+}
+
+void input_process_mouse_move(Input* input, int x, int y) {
+    input->mouse_dx = x - input->mouse_x;
+    input->mouse_dy = y - input->mouse_y;
+    input->mouse_x = x;
+    input->mouse_y = y;
+}
+
+void input_process_mouse_button(Input* input, int button, int down) {
+    if (button >= 0 && button < 3) {
+        input->mouse_buttons[button] = down;
+    }
+}
+
+void input_process_mouse_wheel(Input* input, int delta) {
+    input->mouse_scroll += delta;
+}
+
+int input_key_down(Input* input, int key) {
+    return (key >= 0 && key < MAX_KEYS) ? input->key_states[key] : 0;
+}
+
+int input_key_pressed(Input* input, int key) {
+    return (key >= 0 && key < MAX_KEYS) ? (input->key_states[key] && !input->key_prev[key]) : 0;
+}
+
+int input_key_released(Input* input, int key) {
+    return (key >= 0 && key < MAX_KEYS) ? (!input->key_states[key] && input->key_prev[key]) : 0;
+}
+
+int input_mouse_button(Input* input, int button) {
+    return (button >= 0 && button < 3) ? input->mouse_buttons[button] : 0;
+}
+
+int input_mouse_button_pressed(Input* input, int button) {
+    return (button >= 0 && button < 3) ? (input->mouse_buttons[button] && !input->mouse_prev[button]) : 0;
+}
+
+void input_get_mouse_pos(Input* input, int* x, int* y) {
+    if (x) *x = input->mouse_x;
+    if (y) *y = input->mouse_y;
+}
+
+void input_get_mouse_delta(Input* input, int* dx, int* dy) {
+    if (dx) *dx = input->mouse_dx;
+    if (dy) *dy = input->mouse_dy;
+}
+
+int input_get_mouse_scroll(Input* input) {
+    return input->mouse_scroll;
+}
+
+int input_gamepad_connected(Input* input) {
+    return input->gamepad_connected;
+}
+
+float input_gamepad_axis_lx(Input* input) {
+    float v = normalize_axis(input->gamepad_state.Gamepad.sThumbLX);
+    return fabsf(v) < input->deadzone ? 0.0f : v;
+}
+
+float input_gamepad_axis_ly(Input* input) {
+    float v = normalize_axis(input->gamepad_state.Gamepad.sThumbLY);
+    return fabsf(v) < input->deadzone ? 0.0f : v;
+}
+
+float input_gamepad_axis_rx(Input* input) {
+    float v = normalize_axis(input->gamepad_state.Gamepad.sThumbRX);
+    return fabsf(v) < input->deadzone ? 0.0f : v;
+}
+
+float input_gamepad_axis_ry(Input* input) {
+    float v = normalize_axis(input->gamepad_state.Gamepad.sThumbRY);
+    return fabsf(v) < input->deadzone ? 0.0f : v;
+}
+
+float input_gamepad_trigger_l(Input* input) {
+    return normalize_trigger(input->gamepad_state.Gamepad.bLeftTrigger);
+}
+
+float input_gamepad_trigger_r(Input* input) {
+    return normalize_trigger(input->gamepad_state.Gamepad.bRightTrigger);
+}
+
+int input_gamepad_button(Input* input, uint16_t button) {
+    return (input->gamepad_state.Gamepad.wButtons & button) != 0;
+}
+
+int input_gamepad_button_pressed(Input* input, uint16_t button) {
+    return (input->gamepad_state.Gamepad.wButtons & button) != 0 &&
+           (input->gamepad_prev.Gamepad.wButtons & button) == 0;
+}