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)
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#include "input.h"
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#include <stdlib.h>
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#include <string.h>
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static float normalize_trigger(BYTE value) {
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return value / 255.0f;
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}
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static float normalize_axis(SHORT value) {
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if (value > XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE) {
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return (value - XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE) / (32767.0f - XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE);
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} else if (value < -XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE) {
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return (value + XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE) / (32767.0f - XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE);
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}
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return 0.0f;
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}
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Input* input_create(void) {
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Input* input = (Input*)calloc(1, sizeof(Input));
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input->deadzone = 0.2f;
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return input;
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}
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void input_destroy(Input* input) {
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free(input);
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}
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void input_update(Input* input) {
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memcpy(input->key_prev, input->key_states, sizeof(int) * MAX_KEYS);
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memcpy(input->mouse_prev, input->mouse_buttons, sizeof(int) * 3);
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input->mouse_dx = 0;
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input->mouse_dy = 0;
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input->mouse_scroll = 0;
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memcpy(&input->gamepad_prev, &input->gamepad_state, sizeof(XINPUT_STATE));
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input->gamepad_connected = (XInputGetState(0, &input->gamepad_state) == ERROR_SUCCESS);
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}
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void input_process_key(Input* input, int key, int down) {
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if (key >= 0 && key < MAX_KEYS) {
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input->key_states[key] = down;
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}
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}
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void input_process_mouse_move(Input* input, int x, int y) {
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input->mouse_dx = x - input->mouse_x;
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input->mouse_dy = y - input->mouse_y;
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input->mouse_x = x;
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input->mouse_y = y;
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}
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void input_process_mouse_button(Input* input, int button, int down) {
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if (button >= 0 && button < 3) {
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input->mouse_buttons[button] = down;
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}
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}
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void input_process_mouse_wheel(Input* input, int delta) {
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input->mouse_scroll += delta;
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}
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int input_key_down(Input* input, int key) {
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return (key >= 0 && key < MAX_KEYS) ? input->key_states[key] : 0;
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}
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int input_key_pressed(Input* input, int key) {
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return (key >= 0 && key < MAX_KEYS) ? (input->key_states[key] && !input->key_prev[key]) : 0;
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}
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int input_key_released(Input* input, int key) {
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return (key >= 0 && key < MAX_KEYS) ? (!input->key_states[key] && input->key_prev[key]) : 0;
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}
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int input_mouse_button(Input* input, int button) {
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return (button >= 0 && button < 3) ? input->mouse_buttons[button] : 0;
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}
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int input_mouse_button_pressed(Input* input, int button) {
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return (button >= 0 && button < 3) ? (input->mouse_buttons[button] && !input->mouse_prev[button]) : 0;
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}
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void input_get_mouse_pos(Input* input, int* x, int* y) {
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if (x) *x = input->mouse_x;
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if (y) *y = input->mouse_y;
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}
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void input_get_mouse_delta(Input* input, int* dx, int* dy) {
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if (dx) *dx = input->mouse_dx;
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if (dy) *dy = input->mouse_dy;
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}
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int input_get_mouse_scroll(Input* input) {
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return input->mouse_scroll;
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}
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int input_gamepad_connected(Input* input) {
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return input->gamepad_connected;
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}
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float input_gamepad_axis_lx(Input* input) {
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float v = normalize_axis(input->gamepad_state.Gamepad.sThumbLX);
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return fabsf(v) < input->deadzone ? 0.0f : v;
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}
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float input_gamepad_axis_ly(Input* input) {
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float v = normalize_axis(input->gamepad_state.Gamepad.sThumbLY);
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return fabsf(v) < input->deadzone ? 0.0f : v;
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}
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float input_gamepad_axis_rx(Input* input) {
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float v = normalize_axis(input->gamepad_state.Gamepad.sThumbRX);
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return fabsf(v) < input->deadzone ? 0.0f : v;
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}
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float input_gamepad_axis_ry(Input* input) {
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float v = normalize_axis(input->gamepad_state.Gamepad.sThumbRY);
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return fabsf(v) < input->deadzone ? 0.0f : v;
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}
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float input_gamepad_trigger_l(Input* input) {
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return normalize_trigger(input->gamepad_state.Gamepad.bLeftTrigger);
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}
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float input_gamepad_trigger_r(Input* input) {
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return normalize_trigger(input->gamepad_state.Gamepad.bRightTrigger);
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}
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int input_gamepad_button(Input* input, uint16_t button) {
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return (input->gamepad_state.Gamepad.wButtons & button) != 0;
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}
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int input_gamepad_button_pressed(Input* input, uint16_t button) {
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return (input->gamepad_state.Gamepad.wButtons & button) != 0 &&
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(input->gamepad_prev.Gamepad.wButtons & button) == 0;
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}
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@@ -0,0 +1,88 @@
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#pragma once
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// ============================================================================
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// input.h - 输入管理 (键盘/鼠标/手柄)
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// ============================================================================
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#include <Windows.h>
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#include <Xinput.h>
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#include <stdint.h>
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#pragma comment(lib, "xinput.lib")
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// 键盘状态
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#define MAX_KEYS 256
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// 鼠标按钮
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#define MOUSE_LEFT 0
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#define MOUSE_RIGHT 1
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#define MOUSE_MIDDLE 2
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// 手柄按钮
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#define GAMEPAD_A XINPUT_GAMEPAD_A
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#define GAMEPAD_B XINPUT_GAMEPAD_B
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#define GAMEPAD_X XINPUT_GAMEPAD_X
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#define GAMEPAD_Y XINPUT_GAMEPAD_Y
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#define GAMEPAD_START XINPUT_GAMEPAD_START
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#define GAMEPAD_BACK XINPUT_GAMEPAD_BACK
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#define GAMEPAD_LB XINPUT_GAMEPAD_LEFT_SHOULDER
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#define GAMEPAD_RB XINPUT_GAMEPAD_RIGHT_SHOULDER
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#define GAMEPAD_LTHUMB XINPUT_GAMEPAD_LEFT_THUMB
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#define GAMEPAD_RTHUMB XINPUT_GAMEPAD_RIGHT_THUMB
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#define GAMEPAD_UP XINPUT_GAMEPAD_DPAD_UP
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#define GAMEPAD_DOWN XINPUT_GAMEPAD_DPAD_DOWN
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#define GAMEPAD_LEFT XINPUT_GAMEPAD_DPAD_LEFT
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#define GAMEPAD_RIGHT XINPUT_GAMEPAD_DPAD_RIGHT
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typedef struct {
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int key_states[MAX_KEYS];
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int key_prev[MAX_KEYS];
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int mouse_x, mouse_y;
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int mouse_dx, mouse_dy;
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int mouse_scroll;
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int mouse_buttons[3];
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int mouse_prev[3];
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XINPUT_STATE gamepad_state;
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XINPUT_STATE gamepad_prev;
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int gamepad_connected;
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float deadzone;
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} Input;
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// 创建/销毁
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Input* input_create(void);
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void input_destroy(Input* input);
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// 更新 (每帧调用)
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void input_update(Input* input);
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// Win32 消息处理
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void input_process_key(Input* input, int key, int down);
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void input_process_mouse_move(Input* input, int x, int y);
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void input_process_mouse_button(Input* input, int button, int down);
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void input_process_mouse_wheel(Input* input, int delta);
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// 键盘查询
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int input_key_down(Input* input, int key);
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int input_key_pressed(Input* input, int key);
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int input_key_released(Input* input, int key);
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// 鼠标查询
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int input_mouse_button(Input* input, int button);
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int input_mouse_button_pressed(Input* input, int button);
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void input_get_mouse_pos(Input* input, int* x, int* y);
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void input_get_mouse_delta(Input* input, int* dx, int* dy);
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int input_get_mouse_scroll(Input* input);
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// 手柄查询
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int input_gamepad_connected(Input* input);
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float input_gamepad_axis_lx(Input* input);
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float input_gamepad_axis_ly(Input* input);
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float input_gamepad_axis_rx(Input* input);
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float input_gamepad_axis_ry(Input* input);
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float input_gamepad_trigger_l(Input* input);
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float input_gamepad_trigger_r(Input* input);
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int input_gamepad_button(Input* input, uint16_t button);
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int input_gamepad_button_pressed(Input* input, uint16_t button);
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