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This commit is contained in:
raysan5 2021-10-17 19:10:09 +02:00
parent d47d7c0001
commit c20df9aa47
6 changed files with 166 additions and 156 deletions
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53
examples/core/core_quat_conversion.c
View file

@ -10,7 +10,7 @@
*
* Example contributed by Chris Camacho (@chriscamacho) and reviewed by Ramon Santamaria (@raysan5)
*
* Copyright (c) 2020 Chris Camacho (@chriscamacho) and Ramon Santamaria (@raysan5)
* Copyright (c) 2020-2021 Chris Camacho (@chriscamacho) and Ramon Santamaria (@raysan5)
*
********************************************************************************************/
@ -32,15 +32,23 @@ int main(void)
camera.target = (Vector3){ 0.0f, 0.0f, 0.0f }; // Camera looking at point
camera.up = (Vector3){ 0.0f, 1.0f, 0.0f }; // Camera up vector (rotation towards target)
camera.fovy = 45.0f; // Camera field-of-view Y
camera.projection = CAMERA_PERSPECTIVE; // Camera mode type
camera.projection = CAMERA_PERSPECTIVE; // Camera mode type
Mesh mesh = GenMeshCylinder(0.2f, 1.0f, 32);
Model model = LoadModelFromMesh(mesh);
// Load a cylinder model for testing
Model model = LoadModelFromMesh(GenMeshCylinder(0.2f, 1.0f, 32));
// Some required variables
// Generic quaternion for operations
Quaternion q1 = { 0 };
Matrix m1 = { 0 }, m2 = { 0 }, m3 = { 0 }, m4 = { 0 };
Vector3 v1 = { 0 }, v2 = { 0 };
// Transform matrices required to draw 4 cylinders
Matrix m1 = { 0 };
Matrix m2 = { 0 };
Matrix m3 = { 0 };
Matrix m4 = { 0 };
// Generic vectors for rotations
Vector3 v1 = { 0 };
Vector3 v2 = { 0 };
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
@ -50,6 +58,10 @@ int main(void)
{
// Update
//--------------------------------------------------------------------------------------
if (v2.x < 0) v2.x += PI*2;
if (v2.y < 0) v2.y += PI*2;
if (v2.z < 0) v2.z += PI*2;
if (!IsKeyDown(KEY_SPACE))
{
v1.x += 0.01f;
@ -68,7 +80,7 @@ int main(void)
q1 = QuaternionFromMatrix(m1);
m3 = QuaternionToMatrix(q1);
v2 = QuaternionToEuler(q1);
v2 = QuaternionToEuler(q1); // Angles returned in radians
m4 = MatrixRotateZYX(v2);
//--------------------------------------------------------------------------------------
@ -83,10 +95,13 @@ int main(void)
model.transform = m1;
DrawModel(model, (Vector3){ -1, 0, 0 }, 1.0f, RED);
model.transform = m2;
DrawModel(model, (Vector3){ 1, 0, 0 }, 1.0f, RED);
model.transform = m3;
DrawModel(model, (Vector3){ 0, 0, 0 }, 1.0f, RED);
model.transform = m4;
DrawModel(model, (Vector3){ 0, 0, -1 }, 1.0f, RED);
@ -94,23 +109,13 @@ int main(void)
EndMode3D();
if (v2.x < 0) v2.x += PI*2;
if (v2.y < 0) v2.y += PI*2;
if (v2.z < 0) v2.z += PI*2;
DrawText(TextFormat("%2.3f", v1.x), 20, 20, 20, (v1.x == v2.x)? GREEN: BLACK);
DrawText(TextFormat("%2.3f", v1.y), 20, 40, 20, (v1.y == v2.y)? GREEN: BLACK);
DrawText(TextFormat("%2.3f", v1.z), 20, 60, 20, (v1.z == v2.z)? GREEN: BLACK);
Color cx,cy,cz;
cx = cy = cz = BLACK;
if (v1.x == v2.x) cx = GREEN;
if (v1.y == v2.y) cy = GREEN;
if (v1.z == v2.z) cz = GREEN;
DrawText(TextFormat("%2.3f", v1.x), 20, 20, 20, cx);
DrawText(TextFormat("%2.3f", v1.y), 20, 40, 20, cy);
DrawText(TextFormat("%2.3f", v1.z), 20, 60, 20, cz);
DrawText(TextFormat("%2.3f", v2.x), 200, 20, 20, cx);
DrawText(TextFormat("%2.3f", v2.y), 200, 40, 20, cy);
DrawText(TextFormat("%2.3f", v2.z), 200, 60, 20, cz);
DrawText(TextFormat("%2.3f", v2.x), 200, 20, 20, (v1.x == v2.x)? GREEN: BLACK);
DrawText(TextFormat("%2.3f", v2.y), 200, 40, 20, (v1.y == v2.y)? GREEN: BLACK);
DrawText(TextFormat("%2.3f", v2.z), 200, 60, 20, (v1.z == v2.z)? GREEN: BLACK);
EndDrawing();
//----------------------------------------------------------------------------------

6
examples/core/core_random_values.c
View file

@ -20,10 +20,12 @@ int main(void)
InitWindow(screenWidth, screenHeight, "raylib [core] example - generate random values");
int framesCounter = 0; // Variable used to count frames
// SetRandomSeed(0xaabbccff); // Set a custom random seed if desired, by default: "time(NULL)"
int randValue = GetRandomValue(-8, 5); // Get a random integer number between -8 and 5 (both included)
int framesCounter = 0; // Variable used to count frames
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------

233
examples/core/core_2d_camera_smooth_pixelperfect.c → examples/core/core_smooth_pixelperfect.c
View file

@ -1,118 +1,117 @@
/*******************************************************************************************
*
* raylib [core] example - smooth pixel-perfect camera
*
* This example has been created using raylib 3.7 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
* Example contributed by Giancamillo Alessandroni (@NotManyIdeasDev) and
* reviewed by Ramon Santamaria (@raysan5)
*
* Copyright (c) 2021 Giancamillo Alessandroni (@NotManyIdeasDev) and Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#include <math.h> // Required for: sinf(), cosf()
int main(void)
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
const int virtualScreenWidth = 160;
const int virtualScreenHeight = 90;
const float virtualRatio = (float)screenWidth/(float)virtualScreenWidth;
InitWindow(screenWidth, screenHeight, "raylib [core] example - smooth pixel-perfect camera");
Camera2D worldSpaceCamera = { 0 }; // Game world camera
worldSpaceCamera.zoom = 1.0f;
Camera2D screenSpaceCamera = { 0 }; // Smoothing camera
screenSpaceCamera.zoom = 1.0f;
RenderTexture2D target = LoadRenderTexture(virtualScreenWidth, virtualScreenHeight); // This is where we'll draw all our objects.
Rectangle rec01 = { 70.0f, 35.0f, 20.0f, 20.0f };
Rectangle rec02 = { 90.0f, 55.0f, 30.0f, 10.0f };
Rectangle rec03 = { 80.0f, 65.0f, 15.0f, 25.0f };
// The target's height is flipped (in the source Rectangle), due to OpenGL reasons
Rectangle sourceRec = { 0.0f, 0.0f, (float)target.texture.width, -(float)target.texture.height };
Rectangle destRec = { -virtualRatio, -virtualRatio, screenWidth + (virtualRatio*2), screenHeight + (virtualRatio*2) };
Vector2 origin = { 0.0f, 0.0f };
float rotation = 0.0f;
float cameraX = 0.0f;
float cameraY = 0.0f;
SetTargetFPS(60);
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
// Update
//----------------------------------------------------------------------------------
rotation += 60.0f*GetFrameTime(); // Rotate the rectangles, 60 degrees per second
// Make the camera move to demonstrate the effect
cameraX = (sinf(GetTime())*50.0f) - 10.0f;
cameraY = cosf(GetTime())*30.0f;
// Set the camera's target to the values computed above
screenSpaceCamera.target = (Vector2){ cameraX, cameraY };
// Round worldSpace coordinates, keep decimals into screenSpace coordinates
worldSpaceCamera.target.x = (int)screenSpaceCamera.target.x;
screenSpaceCamera.target.x -= worldSpaceCamera.target.x;
screenSpaceCamera.target.x *= virtualRatio;
worldSpaceCamera.target.y = (int)screenSpaceCamera.target.y;
screenSpaceCamera.target.y -= worldSpaceCamera.target.y;
screenSpaceCamera.target.y *= virtualRatio;
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginTextureMode(target);
ClearBackground(RAYWHITE);
BeginMode2D(worldSpaceCamera);
DrawRectanglePro(rec01, origin, rotation, BLACK);
DrawRectanglePro(rec02, origin, -rotation, RED);
DrawRectanglePro(rec03, origin, rotation + 45.0f, BLUE);
EndMode2D();
EndTextureMode();
BeginDrawing();
ClearBackground(RED);
BeginMode2D(screenSpaceCamera);
DrawTexturePro(target.texture, sourceRec, destRec, origin, 0.0f, WHITE);
EndMode2D();
DrawText(TextFormat("Screen resolution: %ix%i", screenWidth, screenHeight), 10, 10, 20, DARKBLUE);
DrawText(TextFormat("World resolution: %ix%i", virtualScreenWidth, virtualScreenHeight), 10, 40, 20, DARKGREEN);
DrawFPS(GetScreenWidth() - 95, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
UnloadRenderTexture(target); // Unload render texture
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
/*******************************************************************************************
*
* raylib [core] example - smooth pixel-perfect camera
*
* This example has been created using raylib 3.7 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
* Example contributed by Giancamillo Alessandroni (@NotManyIdeasDev) and
* reviewed by Ramon Santamaria (@raysan5)
*
* Copyright (c) 2021 Giancamillo Alessandroni (@NotManyIdeasDev) and Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#include <math.h> // Required for: sinf(), cosf()
int main(void)
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
const int virtualScreenWidth = 160;
const int virtualScreenHeight = 90;
const float virtualRatio = (float)screenWidth/(float)virtualScreenWidth;
InitWindow(screenWidth, screenHeight, "raylib [core] example - smooth pixel-perfect camera");
Camera2D worldSpaceCamera = { 0 }; // Game world camera
worldSpaceCamera.zoom = 1.0f;
Camera2D screenSpaceCamera = { 0 }; // Smoothing camera
screenSpaceCamera.zoom = 1.0f;
RenderTexture2D target = LoadRenderTexture(virtualScreenWidth, virtualScreenHeight); // This is where we'll draw all our objects.
Rectangle rec01 = { 70.0f, 35.0f, 20.0f, 20.0f };
Rectangle rec02 = { 90.0f, 55.0f, 30.0f, 10.0f };
Rectangle rec03 = { 80.0f, 65.0f, 15.0f, 25.0f };
// The target's height is flipped (in the source Rectangle), due to OpenGL reasons
Rectangle sourceRec = { 0.0f, 0.0f, (float)target.texture.width, -(float)target.texture.height };
Rectangle destRec = { -virtualRatio, -virtualRatio, screenWidth + (virtualRatio*2), screenHeight + (virtualRatio*2) };
Vector2 origin = { 0.0f, 0.0f };
float rotation = 0.0f;
float cameraX = 0.0f;
float cameraY = 0.0f;
SetTargetFPS(60);
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
// Update
//----------------------------------------------------------------------------------
rotation += 60.0f*GetFrameTime(); // Rotate the rectangles, 60 degrees per second
// Make the camera move to demonstrate the effect
cameraX = (sinf(GetTime())*50.0f) - 10.0f;
cameraY = cosf(GetTime())*30.0f;
// Set the camera's target to the values computed above
screenSpaceCamera.target = (Vector2){ cameraX, cameraY };
// Round worldSpace coordinates, keep decimals into screenSpace coordinates
worldSpaceCamera.target.x = (int)screenSpaceCamera.target.x;
screenSpaceCamera.target.x -= worldSpaceCamera.target.x;
screenSpaceCamera.target.x *= virtualRatio;
worldSpaceCamera.target.y = (int)screenSpaceCamera.target.y;
screenSpaceCamera.target.y -= worldSpaceCamera.target.y;
screenSpaceCamera.target.y *= virtualRatio;
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginTextureMode(target);
ClearBackground(RAYWHITE);
BeginMode2D(worldSpaceCamera);
DrawRectanglePro(rec01, origin, rotation, BLACK);
DrawRectanglePro(rec02, origin, -rotation, RED);
DrawRectanglePro(rec03, origin, rotation + 45.0f, BLUE);
EndMode2D();
EndTextureMode();
BeginDrawing();
ClearBackground(RED);
BeginMode2D(screenSpaceCamera);
DrawTexturePro(target.texture, sourceRec, destRec, origin, 0.0f, WHITE);
EndMode2D();
DrawText(TextFormat("Screen resolution: %ix%i", screenWidth, screenHeight), 10, 10, 20, DARKBLUE);
DrawText(TextFormat("World resolution: %ix%i", virtualScreenWidth, virtualScreenHeight), 10, 40, 20, DARKGREEN);
DrawFPS(GetScreenWidth() - 95, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
UnloadRenderTexture(target); // Unload render texture
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}

4
examples/core/core_split_screen.c
View file

@ -122,7 +122,7 @@ int main(void)
BeginMode3D(cameraPlayer1);
DrawScene();
EndMode3D();
DrawText("PLAYER1 W/S to move", 0, 0, 20, RED);
DrawText("PLAYER1 W/S to move", 10, 10, 20, RED);
EndTextureMode();
// Draw Player2 view to the render texture
@ -131,7 +131,7 @@ int main(void)
BeginMode3D(cameraPlayer2);
DrawScene();
EndMode3D();
DrawText("PLAYER2 UP/DOWN to move", 0, 0, 20, BLUE);
DrawText("PLAYER2 UP/DOWN to move", 10, 10, 20, BLUE);
EndTextureMode();
// Draw both views render textures to the screen side by side

26
examples/textures/textures_poly.c → examples/textures/textures_polygon.c
View file

@ -15,7 +15,7 @@
#include "raylib.h"
#include "raymath.h"
#define MAX_POINTS 11 // 10 points and back to the start
#define MAX_POINTS 11 // 10 points and back to the start
int main(void)
{
@ -23,7 +23,10 @@ int main(void)
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [textures] example - textured polygon");
// Define texture coordinates to map our texture to poly
Vector2 texcoords[MAX_POINTS] = {
(Vector2){ 0.75f, 0.0f },
(Vector2){ 0.25f, 0.0f },
@ -38,22 +41,24 @@ int main(void)
(Vector2){ 0.75f, 0.0f} // Close the poly
};
// Define the base poly vertices from the UV's
// NOTE: They can be specified in any other way
Vector2 points[MAX_POINTS] = { 0 };
// Create the poly coords from the UV's
// you don't have to do this you can specify
// them however you want
for (int i = 0; i < MAX_POINTS; i++)
{
points[i].x = (texcoords[i].x - 0.5f)*256.0f;
points[i].y = (texcoords[i].y - 0.5f)*256.0f;
}
// Define the vertices drawing position
// NOTE: Initially same as points but updated every frame
Vector2 positions[MAX_POINTS] = { 0 };
for (int i = 0; i < MAX_POINTS; i++) positions[i] = points[i];
InitWindow(screenWidth, screenHeight, "raylib [textures] example - textured polygon");
// Load texture to be mapped to poly
Texture texture = LoadTexture("resources/cat.png");
float angle = 0.0f;
float angle = 0.0f; // Rotation angle (in degrees)
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
@ -63,10 +68,9 @@ int main(void)
{
// Update
//----------------------------------------------------------------------------------
// Update points rotation with an angle transform
// NOTE: Base points position are not modified
angle++;
Vector2 positions[MAX_POINTS] = { 0 };
for (int i = 0; i < MAX_POINTS; i++) positions[i] = Vector2Rotate(points[i], angle*DEG2RAD);
//----------------------------------------------------------------------------------

0
examples/textures/textures_poly.png → examples/textures/textures_polygon.png
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