Auswahl von Objekten möglich

inputHandler.c

@@ -2,9 +2,54 @@
 #include "raylib.h"
 #include "sprite.h"
 #include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
 
 //TODO: Macht es Sinn ein einzelnes "Game" struct zu haben, das alle möglichen Pointer hat zu allen arrays, camera, textures etc?
 // Man hat einen Übergabeparameter mit dem man dann alles verändern kann, man muss nicht alles was man verändern will einzeln übergeben
+void DrawRect(Vector2 rectStart, Vector2 *mousePosition){
+    
+    float width = GetMousePosition().x - rectStart.x;
+    float height = GetMousePosition().y - rectStart.y;
+
+    if(width < 0 && height >= 0){
+        width *= -1;
+        rectStart.x -= width;
+    }
+    else if(height < 0 && width >= 0){
+        height *= -1;
+        rectStart.y -= height;
+    }
+    else if(height < 0 && width < 0){
+        height *= -1;
+        width *= -1;
+        rectStart.x -= width;
+        rectStart.y -= height;
+    }
+
+    DrawRectangleLines(rectStart.x, rectStart.y, width, height, GREEN);
+}
+
+Vector2 GetRectangle(Vector2 rectStart){
+    float width = GetMousePosition().x - rectStart.x;
+    float height = GetMousePosition().y - rectStart.y;
+
+    if(width < 0 && height >= 0){
+        width *= -1;
+        rectStart.x -= width;
+    }
+    else if(height < 0 && width >= 0){
+        height *= -1;
+        rectStart.y -= height;
+    }
+    else if(height < 0 && width < 0){
+        height *= -1;
+        width *= -1;
+        rectStart.x -= width;
+        rectStart.y -= height;
+    }
+    return rectStart;
+}
 
 void mouseInput(InputHandler *inputHandler, Sprite *sprites, int *spriteAmount, Texture2D *texture, Camera2D *camera){
 
@@ -27,18 +72,49 @@ void mouseInput(InputHandler *inputHandler, Sprite *sprites, int *spriteAmount,
         inputHandler->pressed = 0;
         float width = GetMousePosition().x - inputHandler->rectStart.x;
         float height = GetMousePosition().y - inputHandler->rectStart.y;
+
+        // Add Sprite
         if(width + height <= 1){
             //printf("Klick\n");
             SpriteAdd(sprites, spriteAmount, texture, inputHandler->cursorPos.x + (*camera).target.x - (texture->width)/2, inputHandler->cursorPos.y + (*camera).target.y - (texture->height)/2);
         }
+
+        // Berechnung, welche Sprites ausgewählt wurden
+        Vector2 rect = GetRectangle(inputHandler->rectStart);
+        width = abs(width);
+        height = abs(height);
+
+        printf("Auswahl: x: %f, y: %f, w: %f, h: %f\n", rect.x, rect.y, width, height);
+
+        int k;
+        float deltaX;
+        float deltaY;
+        for(k = 0; k < *spriteAmount; k++){
+            deltaX = (sprites+k)->x - (rect.x + camera->target.x);
+            deltaY = (sprites+k)->y - (rect.y + camera->target.y);
+
+            printf("deltaX: %f, deltaY: %f\n", deltaX, deltaY);
+
+            if(deltaX > 0 && deltaX < width && deltaY > 0 && deltaY < height){
+                (sprites + k)->selected = 1;
+                printf("%d selected\n", k);
+            }
+            else{
+                (sprites + k)->selected = 0;
+            }
+        }
     }
 
     if(IsMouseButtonPressed(MOUSE_BUTTON_RIGHT)){
-        sprites->hasDestination = 1;
-        sprites->destX = inputHandler->cursorPos.x + (*camera).target.x - (texture->width)/2;
-        sprites->destY = inputHandler->cursorPos.y + (*camera).target.y - (texture->height)/2;
+        int i;
+        for(i=0;i<*spriteAmount;i++){
+            if((sprites+i)->selected){
+                (sprites+i)->hasDestination = 1;
+                (sprites+i)->destX = inputHandler->cursorPos.x + (*camera).target.x - (texture->width)/2;
+                (sprites+i)->destY = inputHandler->cursorPos.y + (*camera).target.y - (texture->height)/2;
+            }
+        }
     }
-
 }
 
 
@@ -55,27 +131,4 @@ void keyboardInput(InputHandler *inputHandler, Camera2D *camera){
     if(IsKeyDown(KEY_A)){
         (*camera).target.x -= 100.0f * GetFrameTime();
     }
-}
-
-void DrawRect(Vector2 rectStart, Vector2 *mousePosition){
-    
-    float width = GetMousePosition().x - rectStart.x;
-    float height = GetMousePosition().y - rectStart.y;
-
-    if(width < 0 && height >= 0){
-        width *= -1;
-        rectStart.x -= width;
-    }
-    else if(height < 0 && width >= 0){
-        height *= -1;
-        rectStart.y -= height;
-    }
-    else if(height < 0 && width < 0){
-        height *= -1;
-        width *= -1;
-        rectStart.x -= width;
-        rectStart.y -= height;
-    }
-
-    DrawRectangleLines(rectStart.x, rectStart.y, width, height, GREEN);
 }

main.c

@@ -37,7 +37,7 @@ int main(){
         int i;
         //int length = sizeof(sprites)/sizeof(sprites[0]);
         for(i=0; i < spriteAmount; i++){
-            DrawTexture(*sprites[i].texture, sprites[i].x, sprites[i].y, WHITE);
+            DrawSprite(sprites + i);
         }
         EndMode2D();
 
@@ -50,13 +50,6 @@ int main(){
         mouseInput(&inputHandler, sprites, &spriteAmount, &texture, &camera);
         keyboardInput(&inputHandler, &camera);
 
-/*
-        if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT)){
-            printf("Klick\n");
-            SpriteAdd(sprites, &j, &texture, cursor.x + camera.target.x, cursor.y + camera.target.y);
-        }
-        */
-
         // Sprites move towards their destination
         float movementSpeed = 10.0f; 
         for(i=0; i < spriteAmount; i++){
@@ -77,8 +70,6 @@ int main(){
             }
         }
 
-
-
         EndDrawing();
     }
 

sprite.c

@@ -10,6 +10,7 @@ void SpriteAdd(Sprite *sprites, int *spriteAmount, Texture2D *texture, int x, in
         (sprites + *spriteAmount) -> destX = x;
         (sprites + *spriteAmount) -> destY = y;
         (sprites + *spriteAmount) -> hasDestination = 0;
+        (sprites + *spriteAmount) -> selected = 0;
         (*spriteAmount)++;
     }
     else{
@@ -18,5 +19,11 @@ void SpriteAdd(Sprite *sprites, int *spriteAmount, Texture2D *texture, int x, in
 }
 
 void DrawSprite(Sprite *sprite){
-    DrawTexture(*sprite->texture, sprite->x, sprite->y, WHITE);
+
+    if(sprite->selected){
+        DrawTexture(*sprite->texture, sprite->x, sprite->y, BLACK);
+    }
+    else{
+        DrawTexture(*sprite->texture, sprite->x, sprite->y, WHITE);
+    }
 }

sprite.h

@@ -9,6 +9,7 @@ typedef struct Sprite {
     float destX;
     float destY;
     int hasDestination;
+    int selected;
 } Sprite;
 
 void SpriteAdd(Sprite *sprites, int *spriteAmount, Texture2D *texture, int x, int y);