#include <iostream>
#include <graphics.h>
#include <stdio.h>
#include <conio.h>
#include <vector>
#include <string>
using namespace std;
int idx_player_anim = 0;
const int player_anim_num = 6;//这里要把动画帧数定位const int才能放入数组括号中，int不行
IMAGE img_player_left[player_anim_num];
IMAGE img_player_right[player_anim_num];
POINT player_pos = { 500,500 };
int player_speed = 10;
#pragma comment(lib,"MSIMG32.LIB")//putimage不能处理透明度，要弄个能处理透明度的putimage函数
inline void putimage_alpha(int x, int y, IMAGE* img)
{
int w = img->getwidth();
int h = img->getheight();
AlphaBlend(GetImageHDC(NULL), x, y, w, h, GetImageHDC(img), 0, 0, w, h, { AC_SRC_OVER,0,255,AC_SRC_ALPHA });
}
class Animation
{
public:
Animation(LPCTSTR path, int num, int interval)//构造函数实现loadimage
{
interval_ms = interval;
TCHAR path_file[256];
for (size_t i = 0; i < num; i++)
{
_stprintf_s(path_file, path, i);
IMAGE* frame = new IMAGE();
loadimage(frame, path_file);
frame_list.push_back(frame);
}
}
~Animation()
{
for (size_t i = 0; i < frame_list.size(); i++)
delete frame_list[i];
}
void play(int x, int y, int delta)//实现putiamge
{
timer += delta;
if (timer > interval_ms)
{
idx_frame = (idx_frame + 1) % player_anim_num;
timer = 0;
}
putimage_alpha(x, y, frame_list[idx_frame]);
}
private:
int timer = 0;
int idx_frame = 0;
int interval_ms = 0;
vector<IMAGE*> frame_list;
};//别漏;
Animation anim_left_player(T("img/player_left%d.png"), 6, 45);
Animation anim_right_player(T("img/player_right%d.png"), 6, 45);
int main()
{
initgraph(1280, 720);
IMAGE img_background;
loadimage(&img_background, _T("img/background.png"));
bool running = true;
bool is_up = false;
bool is_down = false;
bool is_left = false;
bool is_right = false;
bool turn_left = true;
bool turn_right = false;
ExMessage msg;
BeginBatchDraw();
while (running)
{
DWORD start_time = GetTickCount();
while (peekmessage(&msg))
{
if (msg.message == WM_KEYDOWN)
{
switch (msg.vkcode)
{
case VK_UP:
is_up = true;
break;
case VK_DOWN:
is_down = true;
break;
case VK_LEFT:
is_left = true;
turn_left = true;
turn_right = false;
break;
case VK_RIGHT:
is_right = true;
turn_left = false;
turn_right = true;
break;
}
}
if (msg.message == WM_KEYUP)
{
switch (msg.vkcode)
{
case VK_UP:
is_up = false;
break;
case VK_DOWN:
is_down = false;
break;
case VK_LEFT:
is_left = false;
break;
case VK_RIGHT:
is_right = false;
break;
}
}
}
if (is_up) player_pos.y -= player_speed;
if (is_down) player_pos.y += player_speed;
if (is_left) player_pos.x -= player_speed;
if (is_right) player_pos.x += player_speed;
cleardevice();
static int counter = 0;
if (++counter % 5 == 0)
idx_player_anim++;
idx_player_anim = idx_player_anim % player_anim_num;
putimage_alpha(0, 0, &img_background);
if(turn_left) anim_left_player.play(player_pos.x, player_pos.y, 10);
if(turn_right)anim_right_player.play(player_pos.x, player_pos.y, 10);
FlushBatchDraw();
DWORD end_time = GetTickCount();
DWORD delta_time = end_time - start_time;
if (delta_time < 1000 / 144)
{
Sleep(1000 / 144 - delta_time);
}
}
EndBatchDraw();
return 0;
}