Raylib 事件

事件

分类

键盘事件 和 鼠标事件
键盘事件函数:

bool IsKeyDown(int key); //确定按键按下
bool IsKeyReleased(int key);
bool IsKeyUp(int key);
int GetKeyPressed();

最简单的逻辑控制

思路:我们运用IsKeyDown(Key的状态) 判断键盘是否按下这个键，然后按照上下左右的键位对小球进行控制

#include <stdio.h>
#include <raylib.h>
#include <time.h>
#include <stdlib.h>
void test_database()
{
	Vector2 p;
	p.x = 11;
	p.y = 2;

	Vector3 o;
	o.x = 10;
	o.y = 11;
	o.z = 10;
}
int main()
{
	srand((unsigned int)time(NULL));
	int x = 10, y = 10;
	InitWindow(800, 600,"Alaso_shuang");
	while (!WindowShouldClose())
	{
		BeginDrawing();
		DrawCircle(x, y, 10, RED);
		ClearBackground(BLACK);
		EndDrawing();

		if (IsKeyDown(KEY_UP)) y -= 1;
		if (IsKeyDown(KEY_DOWN)) y += 1;
		if (IsKeyDown(KEY_LEFT)) x -= 1;
		if (IsKeyDown(KEY_RIGHT)) x += 1;

	}
		
	CloseWindow();
	return 0;
}

你会发现这个小球一下子就出去了，我们需要设置帧率才会正常运转，优化上述程序

#include <stdio.h>
#include <raylib.h>
#include <time.h>
#include <stdlib.h>
void test_database()
{
	Vector2 p;
	p.x = 11;
	p.y = 2;

	Vector3 o;
	o.x = 10;
	o.y = 11;
	o.z = 10;
}
int main()
{
	srand((unsigned int)time(NULL));
	int x = 10, y = 10;
	InitWindow(800, 600,"Alaso_shuang");
	//需要设置帧率，帧率越低，移动速度越慢
	SetTargetFPS(60);
	while (!WindowShouldClose())
	{
		BeginDrawing();

		DrawCircle(x, y, 10, RED);
		ClearBackground(BLACK);
		EndDrawing();

		if (IsKeyDown(KEY_UP)) y -= 1;
		if (IsKeyDown(KEY_DOWN)) y += 1;
		if (IsKeyDown(KEY_LEFT)) x -= 1;
		if (IsKeyDown(KEY_RIGHT)) x += 1;
		if (IsKeyDown(KEY_ESCAPE)) break;
	}
		
	CloseWindow();
	return 0;
}

鼠标事件函数:

bool IsMouseButtonPressed(int button);
bool IsMouseButtonDown(int button);
bool IsMouseButtonReleased(int button);
int GetMouse();         //获取鼠标坐标
int GetMouse(void);

最简单的逻辑控制

#include <stdio.h>
#include <raylib.h>
#include <time.h>
#include <stdlib.h>
void test_database()
{
	Vector2 p;
	p.x = 11;
	p.y = 2;

	Vector3 o;
	o.x = 10;
	o.y = 11;
	o.z = 10;
}
int main()
{
	srand((unsigned int)time(NULL));
	int x = 10, y = 10;
	InitWindow(800, 600,"Alaso_shuang");
	//需要设置帧率，帧率越低，移动速度越慢
	SetTargetFPS(60);
	while (!WindowShouldClose())
	{
		BeginDrawing();

		DrawCircle(x, y, 10, RED);
		
		EndDrawing();

		if (IsMouseButtonDown(MOUSE_BUTTON_LEFT))
		{
			DrawCircle(GetMouseX(),GetMouseY(), 10, GREEN);
		}
		if (IsMouseButtonDown(MOUSE_BUTTON_RIGHT))
		{
			DrawRectangle(GetMouseX()-5, GetMouseY()- 5, 20, 10, RED);
		}
	}
		
	CloseWindow();
	return 0;
}