collision/more physics updates

.gitea/workflows/build.yaml

@@ -0,0 +1,87 @@
+name: Build Project
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          # - windows-latest
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Install Dependencies (Linux)
+        if: runner.os == 'Linux'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            build-essential \
+            gcc \
+            g++ \
+            make \
+            git \
+            cmake \
+            libasound2-dev \
+            mesa-common-dev \
+            libx11-dev \
+            libxrandr-dev \
+            libxinerama-dev \
+            libxcursor-dev \
+            libxi-dev \
+            libgl1-mesa-dev \
+            libglu1-mesa-dev
+
+      - name: Build & Install Raylib (Linux)
+        if: runner.os == 'Linux'
+        run: |
+          git clone --depth 1 https://github.com/raysan5/raylib.git
+          cd raylib/src
+          make PLATFORM=PLATFORM_DESKTOP
+          sudo make install
+
+      # - name: Install MSYS2 and Raylib (Windows)
+      #   if: runner.os == 'Windows'
+      #   uses: msys2/setup-msys2@v2
+      #   with:
+      #     msystem: MINGW64
+      #     update: true
+      #     install: >
+      #       mingw-w64-x86_64-gcc
+      #       mingw-w64-x86_64-make
+      #       mingw-w64-x86_64-raylib
+
+      - name: Build (Linux)
+        if: runner.os == 'Linux'
+        run: make
+
+      # - name: Build (Windows)
+      #   if: runner.os == 'Windows'
+      #   shell: msys2 {0}
+      #   run: make
+
+      - name: Upload Linux Artifact
+        if: runner.os == 'Linux'
+        uses: actions/upload-artifact@v3
+        with:
+          name: wrldbox-linux
+          path: wrldbox
+
+      # - name: Upload Windows Artifact
+      #   if: runner.os == 'Windows'
+      #   uses: actions/upload-artifact@v3
+      #   with:
+      #     name: wrldbox-windows
+      #     path: "*.exe"

MakefileMacOS

@@ -0,0 +1,5 @@
+gcc src/*.c -o wrldboxMacOS \
+-I/opt/homebrew/include \
+-L/opt/homebrew/lib \
+-lraylib \
+-framework OpenGL -framework Cocoa -framework IOKit -framework CoreVideo

README.md

@@ -26,5 +26,4 @@ Clone the repository. Once you have navigated to the folder, you can run:
 
 ## 🏅Credits
 
-This project was impossible without the support of all three `wholeworldcoding` members.
-and Alex
+This project was impossible without the support of all four `wholeworldcoding` members.

src/collision.c

@@ -2,59 +2,67 @@
 #include <math.h>
 #include "config.h"
 #include "collision.h"
-<<<<<<< HEAD
 #include "player.h"
-=======
->>>>>>> dff3a5d2c4b8cd3d6d86ab9792e394cd0d27a619
-
+#include <stdio.h>
 void checkCollision(){
-    float playerx=0.0;
-    float playery=0.0;
-    float plrsize=0.0;
-    for (int i = 0; i < MAX_ENTITIES; i++){
-        Entity *e = &entities[i];
-
-        if (!e->active)
-            continue;
-        if(e->isPlayer == false){
-            float objposx=e->position.x;
-            //float objposy=e->position.y;
-            float objsize=e->size;
-
-            if(playerx-(plrsize/2)<objposx+(objsize/2) && playerx-(plrsize/2)>objposx-(objsize/2)){
-                ApplyForce(
-                    e,
-<<<<<<< HEAD
-                    (Vector2){10000, 1000}
-                );
-                if(dir){
-                ApplyForce(
-                    player,
-                    (Vector2){(curhorvel*3), 1000}
-                );
+    for(int u=0; u<=MAX_ENTITIES-1; u++){
+        Entity *en1 = &entities[u];
+        if(!en1->active){ 
+        continue;
+        }
+        en1->headgrounded = false;
+        for(int j=u+1; j<=MAX_ENTITIES-1; j++){
+            if(u!=j){
+                Entity *en2 = &entities[j];
+                if(!en2->active){ 
+                continue;
                 }
-                else{
-                    ApplyForce(
-                    player,
-                    (Vector2){-(curhorvel*3), 1000}
-                );
+                printf("%d\n", en1->headgrounded);
+                
+                float half = (en1->size + en2->size) * 0.5f;
+                float overlapX = half - fabsf(en1->position.x - en2->position.x);
+                float overlapY = half - fabsf(en1->position.y - en2->position.y);
+
+                if (overlapX > 0 && overlapY > 0)
+                {
+                    if (overlapY < overlapX && en1->position.y < en2->position.y)
+                    {
+                        // top collision
+                        en1->position.y = en2->position.y - half;
+                        en1->velocity.y = 0;
+                        en1->velocity.x *= en2->drag;
+                        en1->headgrounded = true;
+                    } else {
+                        en1->headgrounded = false;
+                        float forcex=fabsf(((en1->mass+en2->mass)/2)*((((en1->velocity.x)+(scale))+((en2->velocity.x)+(scale)))/2))*(scale*1.5);
+                        float forcey=fabsf(((en1->mass+en2->mass)/2)*((((en1->velocity.y)+(scale))+((en2->velocity.y)+(scale)))/2))*(scale/4);
+                 if(en1->position.x < en2->position.x){
+                        en1->velocity.x=0;
+                        en2->velocity.x=0;
+                        ApplyForce(
+                            en1,
+                            (Vector2){-forcex, 0}
+                        );
+                        ApplyForce(
+                            en2,
+                            (Vector2){forcex, 0}
+                        );
+                    }
+                    else{
+                        en1->velocity.x=0;
+                        en2->velocity.x=0;
+                        ApplyForce(
+                            en1,
+                            (Vector2){forcex, 0}
+                        );
+                        ApplyForce(
+                            en2,
+                            (Vector2){-forcex, 0}
+                        );
+                    }
+                        }
                 }
-=======
-                    (Vector2){1000, 1000}
-                );
-                ApplyForce(
-                    player,
-                    (Vector2){-1000, 1000}
-                );
->>>>>>> dff3a5d2c4b8cd3d6d86ab9792e394cd0d27a619
             }
         }
-        else{
-            playerx=e->position.x;
-            playery=e->position.y;
-            if(playery==playery)
-
-            plrsize=e->size;
-        }
-    }
+    } 
 }

src/entity.h

@@ -10,6 +10,7 @@ typedef struct Entity
 
     bool isPlayer;
     bool affectedByGravity;
+    bool headgrounded;
 
     float mass;
     float size;
@@ -20,6 +21,7 @@ typedef struct Entity
     Vector2 force;
 
     Color color;
+    float drag;
 
 } Entity;
 

src/main.c

@@ -59,7 +59,8 @@ int main(void)
                         GetRandomValue(50,255),
                         GetRandomValue(50,255),
                         255
-                        });
+                        }, 
+                        GetRandomValue(0, 1) + 0.1f);
         }
 
         if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT))
@@ -72,7 +73,8 @@ int main(void)
                 m.y,
                 25,
                 1.0f,
-                ORANGE);
+                ORANGE,
+                0.1f);
         }
 
         if (isSimulating)

src/physics.c

@@ -21,7 +21,7 @@ void UpdateEntities(float dt, int screenWidth)
         bool onGround = IsGrounded(e);
 
         // Apply gravity force if enabled for this entity
-        if (e->affectedByGravity)
+        if (e->affectedByGravity && !onGround)
         {
             ApplyForce(
                 e,

src/player.c

@@ -7,10 +7,7 @@
 
 // let's a go!
 float curhorvel=0.0f; //current horizonatal velocity
-<<<<<<< HEAD
 bool dir=0;
-=======
->>>>>>> dff3a5d2c4b8cd3d6d86ab9792e394cd0d27a619
 void UpdatePlayerControls(void)
 {
     // if there isn't a player, you probably can't do much
@@ -23,10 +20,7 @@ void UpdatePlayerControls(void)
     // if a key pressed, push player to the left
     if (IsKeyDown(KEY_A))
     {
-<<<<<<< HEAD
         dir=1;
-=======
->>>>>>> dff3a5d2c4b8cd3d6d86ab9792e394cd0d27a619
         if(curhorvel<MAX_PLAYER_SPEED){
             curhorvel=curhorvel*PLAYER_SPEED_FACTOR;
         }
@@ -38,10 +32,7 @@ void UpdatePlayerControls(void)
     // if d key pressed, push player to the right
     else if (IsKeyDown(KEY_D))
     {
-<<<<<<< HEAD
         dir=0;
-=======
->>>>>>> dff3a5d2c4b8cd3d6d86ab9792e394cd0d27a619
         if(curhorvel<=MAX_PLAYER_SPEED){
             curhorvel=curhorvel*PLAYER_SPEED_FACTOR;
         }

src/player.h

@@ -3,11 +3,6 @@
 
 // FUNction declaration! yay!!!
 // run by main.c constantly to allow player input.
-<<<<<<< HEAD
-extern bool dir;
-extern float curhorvel;
-=======
->>>>>>> dff3a5d2c4b8cd3d6d86ab9792e394cd0d27a619
 void UpdatePlayerControls(void);
 
 #endif

src/world.c

@@ -1,5 +1,6 @@
 #include <stddef.h>
 #include "world.h"
+#include "collision.h"
 
 // the beeg one. hooooooooooooooooh boy
 
@@ -39,12 +40,12 @@ bool IsGrounded(Entity *e)
 {
     if (!e)
         return false;
-
-    return (
-        e->position.y +
-        e->size * 0.5f >=
-        ground_y - 2.0f
-    );
+    if(e->position.y +e->size * 0.5f >=ground_y - 2.0f || e->headgrounded){
+        return true;
+    }
+    else{
+        return false;
+    }
 }
 
 Entity *SpawnEntity(
@@ -52,7 +53,8 @@ Entity *SpawnEntity(
     float y,
     float size,
     float mass,
-    Color color)
+    Color color,
+    float drag)
 {
     for (int i = 0; i < MAX_ENTITIES; i++)
     {
@@ -67,6 +69,7 @@ Entity *SpawnEntity(
 
             e->mass = mass;
             e->size = size;
+            e->drag = drag;
 
             e->position = (Vector2){x, y};
             e->velocity = (Vector2){0, 0};
@@ -74,6 +77,7 @@ Entity *SpawnEntity(
             e->force = (Vector2){0, 0};
 
             e->color = color;
+            e->headgrounded = false;
 
             return e;
         }
@@ -104,7 +108,8 @@ void InitWorld(void)
         120,
         40,
         1.0f,
-        BLUE);
+        BLUE,
+        0.1f);
 
     if (player)
     {
@@ -118,7 +123,8 @@ void InitWorld(void)
             50,
             25,
             1.0f,
-            RED);
+            RED,
+            0.9f);
     }
 
     simTime = 0.0f;

src/world.h

@@ -12,10 +12,13 @@ extern bool isSimulating;
 
 extern float simTime;
 
+extern const float scale;
+
 extern const float MAX_PLAYER_SPEED;
 
 extern const float PLAYER_SPEED_FACTOR;
 
+
 void ApplyForce(Entity *e, Vector2 force);
 bool IsGrounded(Entity *e);
 
@@ -24,7 +27,8 @@ Entity *SpawnEntity(
     float y,
     float size,
     float mass,
-    Color color);
+    Color color,
+    float drag);
 
 void ClearWorld(void);
 void InitWorld(void);