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Implement basic shading and colors.

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CameraRay struct now stores information about tile intersection.
This commit is contained in:
Sheldon Lee
2023-05-01 00:10:01 +01:00
parent 67c41106ff
commit 22cd090f92
7 changed files with 82 additions and 16 deletions
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level.cpp
+20 -9
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@@ -5,17 +5,17 @@
#define WIDTH 10
#define HEIGHT 10
static float castRay(sf::Vector2f point, float direction);
static float castRay(sf::Vector2f point, float direction, TileData* tileData);
static void getGridIndex(sf::Vector2f point, int* x, int* y);
static unsigned int level[WIDTH * HEIGHT] = {
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 0, 0, 0, 0, 0, 1, 1,
1, 1, 1, 0, 0, 0, 0, 1, 0, 1,
1, 1, 1, 0, 0, 0, 0, 2, 0, 1,
1, 0, 0, 1, 0, 0, 0, 0, 0, 1,
1, 0, 0, 1, 0, 0, 0, 1, 0, 1,
1, 0, 0, 1, 0, 0, 0, 3, 0, 1,
1, 0, 0, 1, 0, 0, 0, 0, 0, 1,
1, 0, 0, 1, 0, 0, 0, 1, 0, 1,
1, 0, 0, 1, 0, 0, 0, 4, 0, 1,
1, 0, 0, 0, 0, 0, 0, 0, 0, 1,
1, 0, 0, 1, 0, 0, 0, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
@@ -36,9 +36,10 @@ void level_end()
return;
}
float level_rayCastDistance(sf::Vector2f point, float direction)
float level_rayCast(sf::Vector2f point, float direction, TileData* tileData)
{
return castRay(point, direction);
if (!tileData) return -1.f;
return castRay(point, direction, tileData);
}
void level_getDimensions(unsigned int* width, unsigned int* height)
@@ -55,7 +56,7 @@ unsigned int level_getGridValue(unsigned int x, unsigned int y)
return level[y * HEIGHT + x];
}
static float castRay(sf::Vector2f point, float direction)
static float castRay(sf::Vector2f point, float direction, TileData* tileData)
{
int indexX, indexY;
getGridIndex(point, &indexX, &indexY);
@@ -125,7 +126,12 @@ static float castRay(sf::Vector2f point, float direction)
if (!(inLevel0 || inLevel1)) break;
if (horizontalRayDist < verticalRayDist) {
if (level[indexY0 * WIDTH + indexX0]) return horizontalRayDist;
unsigned int gridValue = level[indexY0 * WIDTH + indexX0];
if (gridValue) {
tileData->value = gridValue;
tileData->side = goingDown? NORTH : SOUTH;
return horizontalRayDist;
}
horizontalProjectedX += horizontalStepX;
horizontalProjectedY += horizontalStepY;
@@ -133,7 +139,12 @@ static float castRay(sf::Vector2f point, float direction)
horizontalRayDist += std::abs(horizontalStepY/horizontalDistCoeff);
}
else {
if (level[indexY1 * WIDTH + indexX1]) return verticalRayDist;
unsigned int gridValue = level[indexY1 * WIDTH + indexX1];
if (gridValue) {
tileData->value = gridValue;
tileData->side = goingRight? WEST : EAST;
return verticalRayDist;
}
verticalProjectedX += verticalStepX;
verticalProjectedY += verticalStepY;